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Posted to dev@spamassassin.apache.org by bu...@bugzilla.spamassassin.org on 2005/09/18 03:16:29 UTC
[Bug 4590] New: prefork: syswrite(6) failed
http://bugzilla.spamassassin.org/show_bug.cgi?id=4590
Summary: prefork: syswrite(6) failed
Product: Spamassassin
Version: 3.1.0
Platform: PC
OS/Version: Linux
Status: NEW
Severity: major
Priority: P3
Component: spamc/spamd
AssignedTo: dev@spamassassin.apache.org
ReportedBy: public@maxima.rajendra.ca
Getting this error in maillog:
prefork: syswrite(6) failed, retrying... at /
usr/lib/perl5/site_perl/5.8.0/Mail/SpamAssassin/SpamdForkScaling.pm line 554.
Then all incoming mail doesn't get processed or delivered.
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[Bug 4590] prefork: syswrite(6) failed
Posted by bu...@bugzilla.spamassassin.org.
http://issues.apache.org/SpamAssassin/show_bug.cgi?id=4590
Bug 4590 depends on bug 4696, which changed state.
Bug 4696 Summary: [review] tcp timeout -> SpamdForkScaling.pm line 195
http://issues.apache.org/SpamAssassin/show_bug.cgi?id=4696
What |Old Value |New Value
----------------------------------------------------------------------------
Status|ASSIGNED |RESOLVED
Resolution| |FIXED
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[Bug 4590] prefork: syswrite(6) failed
Posted by bu...@bugzilla.spamassassin.org.
http://issues.apache.org/SpamAssassin/show_bug.cgi?id=4590
Bug 4590 depends on bug 5313, which changed state.
Bug 5313 Summary: spamd error: 'prefork: select returned -1! recovering: Bad file descriptor'
http://issues.apache.org/SpamAssassin/show_bug.cgi?id=5313
What |Old Value |New Value
----------------------------------------------------------------------------
Status|RESOLVED |REOPENED
Resolution|FIXED |
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[Bug 4590] prefork: syswrite(6) failed
Posted by bu...@bugzilla.spamassassin.org.
http://issues.apache.org/SpamAssassin/show_bug.cgi?id=4590
------- Additional Comments From jm@jmason.org 2006-01-31 03:23 -------
Tom, thanks -- corrected now in my checkout, I'll commit it RSN.
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[Bug 4590] prefork: syswrite(6) failed
Posted by bu...@bugzilla.spamassassin.org.
http://issues.apache.org/SpamAssassin/show_bug.cgi?id=4590
spamassassin@dostech.ca changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|RESOLVED |REOPENED
Resolution|FIXED |
Target Milestone|3.1.1 |3.1.2
------- Additional Comments From spamassassin@dostech.ca 2006-03-09 20:04 -------
I don't think this is fixed. Reopening and targetting at 3.1.2.
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[Bug 4590] prefork: syswrite(6) failed
Posted by bu...@bugzilla.spamassassin.org.
http://issues.apache.org/SpamAssassin/show_bug.cgi?id=4590
jm@jmason.org changed:
What |Removed |Added
----------------------------------------------------------------------------
OtherBugsDependingO|4812 |
nThis| |
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[Bug 4590] prefork: syswrite(6) failed
Posted by bu...@bugzilla.spamassassin.org.
http://issues.apache.org/SpamAssassin/show_bug.cgi?id=4590
felicity@apache.org changed:
What |Removed |Added
----------------------------------------------------------------------------
Target Milestone|3.1.5 |3.1.6
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[Bug 4590] prefork: syswrite(6) failed
Posted by bu...@bugzilla.spamassassin.org.
http://issues.apache.org/SpamAssassin/show_bug.cgi?id=4590
------- Additional Comments From jm@jmason.org 2007-03-26 08:23 -------
Robert, that's not this bug.
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[Bug 4590] prefork: syswrite(6) failed
Posted by bu...@bugzilla.spamassassin.org.
http://issues.apache.org/SpamAssassin/show_bug.cgi?id=4590
------- Additional Comments From frank.urban@commerzbank.com 2006-01-17 08:38 -------
the
"spamd[4339]: prefork: select returned error on server filehandle: Bad file
descriptor"
message I can see in my logfile from 03:48 until 08:15 until I restarted the
spamd. All mailss seemed to be queued until this time. So the patch does not
work correct?
Frank
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[Bug 4590] prefork: syswrite(6) failed
Posted by bu...@bugzilla.spamassassin.org.
http://issues.apache.org/SpamAssassin/show_bug.cgi?id=4590
------- Additional Comments From robert@devnull.us 2007-03-26 08:02 -------
Seeing this problem on FreeBSD 4.11, SpamAssassin 3.1.8 with PERL 5.8.5.
Seems to happen at completely random times. The only common thing I can tell is
that I see some of the child prefork status in "S" just after this happens.
When this happens it doesn't seem to effect spamd as a whole, just the child,
which I assume gets restarted?
Mar 26 13:05:44 scrub1-b spamd[69396]: prefork: child states: IIIBIIIIII
Mar 26 13:05:45 scrub1-b spamd[69396]: prefork: child states: BIIIIIIIII
Mar 26 13:05:47 scrub1-b spamd[69396]: prefork: child states: IBBBIIIIII
Mar 26 13:05:48 scrub1-b spamd[69396]: prefork: child states: IIBBIIIIII
Mar 26 13:05:49 scrub1-b spamd[69396]: prefork: child states: BIIBIIIIII
Mar 26 13:05:50 scrub1-b spamd[69396]: prefork: child states: BIBBBIIIII
Mar 26 13:05:51 scrub1-b spamd[69396]: prefork: child states: IIBBBIIIII
Mar 26 13:05:51 scrub1-b spamd[69396]: prefork: child states: IIIBBIIIII
Mar 26 13:05:53 scrub1-b spamd[69396]: prefork: child states: BBIBIIIIII
Mar 26 13:05:53 scrub1-b spamd[69396]: prefork: child states: BBIIIIIIII
Mar 26 13:05:54 scrub1-b spamd[69396]: prefork: child states: BIBBIIIIII
Mar 26 13:05:56 scrub1-b spamd[69396]: prefork: child states: BBBIBIIIII
Mar 26 13:05:56 scrub1-b spamd[69396]: prefork: child states: IBBIBIIIII
Mar 26 13:05:57 scrub1-b spamd[69396]: prefork: child states: BBIIBIIIII
Mar 26 13:05:58 scrub1-b spamd[69396]: prefork: child states: IBBIBIIIII
Mar 26 13:05:59 scrub1-b spamd[69396]: prefork: child states: IBBIBIIIII
Mar 26 13:05:59 scrub1-b spamd[70957]: prefork: sysread(16) failed after 300
secs at /usr/
local/lib/perl5/site_perl/5.8.5/Mail/SpamAssassin/SpamdForkScaling.pm line 575.
Mar 26 13:05:59 scrub1-b spamd[70956]: prefork: sysread(16) failed after 300
secs at /usr/
local/lib/perl5/site_perl/5.8.5/Mail/SpamAssassin/SpamdForkScaling.pm line 575.
Mar 26 13:05:59 scrub1-b spamd[70952]: prefork: sysread(16) failed after 300
secs at /usr/
local/lib/perl5/site_perl/5.8.5/Mail/SpamAssassin/SpamdForkScaling.pm line 575.
Mar 26 13:05:59 scrub1-b spamd[69396]: prefork: child states: BBBIBIIIII
Mar 26 13:05:59 scrub1-b spamd[69396]: prefork: child states: BBBIBIIIII
Mar 26 13:05:59 scrub1-b spamd[69396]: prefork: child states: BBBIBIIIII
Mar 26 13:05:59 scrub1-b spamd[69396]: prefork: child states: BBBIBIIISS
Mar 26 13:05:59 scrub1-b spamd[69396]: prefork: child states: BBBIBIIIIS
Mar 26 13:05:59 scrub1-b spamd[69396]: prefork: child states: BBBIBIIIII
Mar 26 13:06:00 scrub1-b spamd[69396]: prefork: child states: BBBBIIIIII
Mar 26 13:06:00 scrub1-b spamd[69396]: prefork: child states: BIBBIIIIII
Mar 26 13:06:00 scrub1-b spamd[69396]: prefork: child states: BIIBIIIIII
Mar 26 13:06:02 scrub1-b spamd[69396]: prefork: child states: BBIIIIIIII
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[Bug 4590] prefork: syswrite(6) failed
Posted by bu...@bugzilla.spamassassin.org.
http://issues.apache.org/SpamAssassin/show_bug.cgi?id=4590
------- Additional Comments From jm@jmason.org 2005-12-01 02:25 -------
OK, I've been looking at
http://cyan.dostech.net/sa-bug4590/spamd-strace.syswrite7.trimmed . for what
it's worth, here's what I can tell so far. It just doesn't make much sense.
PIDS:
15882: the spamd parent
19783: a child PID that continues working OK
30625: a child PID that stops processing mail and gets hung
FDS:
15882 fd 4 => syslog
15882 fd 7 => control channel for 30625, attached to fd 8
in that process
15882 fd 8 => control channel for 19783, fd 9
ANNOTATED STRACE:
child, waiting for events:
30625 00:02:31.541351 select(16, [8], NULL, NULL, {300, 0} <unfinished ...>
everything goes well until (event: linenumber):
parent, last good write: 12070
15882 00:05:03.547505 write(7, "P....\n", 6 <unfinished ...>
15882 00:05:03.547564 <... write resumed> ) = 6
The "P....\n" data is a ping, to check to ensure that the child can
process mails. The child doesn't need to respond to this, it's
a one-way operation.
child, last successful read: 12070 - 12094
After that write from the parent, the child wakes up from its select(), reads
the ping,
and goes back to another select():
30625 00:05:03.547950 <... select resumed> ) = 1 (in [8], left {148, 0})
15882 00:05:03.548020 rt_sigprocmask(SIG_BLOCK, ~[], <unfinished ...>
30625 00:05:03.548132 read(8, <unfinished ...>
15882 00:05:03.548168 <... rt_sigprocmask resumed> [33], 8) = 0
30625 00:05:03.548265 <... read resumed> "P....\n", 6) = 6
15882 00:05:03.548334 rt_sigprocmask(SIG_BLOCK, [ALRM], <unfinished ...>
30625 00:05:03.548440 read(8, <unfinished ...>
15882 00:05:03.548461 <... rt_sigprocmask resumed> ~[KILL STOP], 8) = 0
30625 00:05:03.548505 <... read resumed> 0x9f81dc0, 6) = -1 EAGAIN (Resource
temporarily unavailable)
15882 00:05:03.548529 rt_sigaction(SIGALRM, {0x80a7be8, [], SA_RESTORER,
0x420276f8}, <unfinished ...>
30625 00:05:03.548591 time( <unfinished ...>
15882 00:05:03.548609 <... rt_sigaction resumed> {0x80a6dcc, [], SA_RESTORER,
0x420276f8}, 8) = 0
30625 00:05:03.548700 <... time resumed> NULL) = 1132463103
15882 00:05:03.548720 rt_sigprocmask(SIG_SETMASK, ~[KILL STOP], <unfinished ...>
30625 00:05:03.548792 select(16, [8], NULL, NULL, {300, 0} <unfinished ...>
and this is where the problem happens, somewhere between line 12094 and 12854.
parent, first failed write: 12854
15882 00:07:35.737337 write(7, "P....\n", 6) = -1 EAGAIN (Resource temporarily
unavailable)
parent, second failed write: 12874
15882 00:07:41.834433 write(7, "P....\n", 6) = -1 EAGAIN (Resource temporarily
unavailable)
(many more attempts 5 seconds apart, all fail)
child, failed read: 13338 - 13351
30625 00:10:03.561013 <... select resumed> ) = 0 (Timeout)
30625 00:10:03.606427 read(8, 0x9f81dc0, 6) = -1 EAGAIN (Resource temporarily
unavailable)
30625 00:10:03.614481 time(NULL) = 1132463403
30625 00:10:03.635766 select(16, [8], NULL, NULL, {1, 0}) = 0 (Timeout)
30625 00:10:04.631238 read(8, 0x9f81dc0, 6) = -1 EAGAIN (Resource temporarily
unavailable)
30625 00:10:04.631361 time(NULL) = 1132463404
30625 00:10:04.818517 rt_sigprocmask(SIG_BLOCK, [PIPE], [33], 8) = 0
30625 00:10:04.822736 rt_sigaction(SIGPIPE, {SIG_DFL}, {SIG_IGN}, 8) = 0
30625 00:10:04.822854 rt_sigprocmask(SIG_SETMASK, [33], NULL, 8) = 0
30625 00:10:04.822906 rt_sigprocmask(SIG_BLOCK, [PIPE], [33], 8) = 0
30625 00:10:04.822962 rt_sigaction(SIGPIPE, {0x80a7be8, [], SA_RESTORER,
0x420276f8}, {SIG_DFL}, 8) = 0
30625 00:10:04.823016 rt_sigprocmask(SIG_SETMASK, [33], NULL, 8) = 0
30625 00:10:04.945869 select(8, [4], NULL, [4], {0, 0}) = 0 (Timeout)
30625 00:10:04.953285 write(4, "<20>spamd[30625]: prefork: sysre"..., 149) = 149
and it carries on with both sides retrying and failing, until end of strace.
So the problem happens somewhere between line 12094 and 12854. However,
there's absolutely nothing of note in those lines -- just the usual idle
signal-twiddling and 2-second sleeping.
If anyone can spot anything, I'd be much obliged! I'm stumped ;)
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[Bug 4590] prefork: syswrite(6) failed
Posted by bu...@bugzilla.spamassassin.org.
http://issues.apache.org/SpamAssassin/show_bug.cgi?id=4590
jm@jmason.org changed:
What |Removed |Added
----------------------------------------------------------------------------
AssignedTo|dev@spamassassin.apache.org |jm@jmason.org
Status|NEW |ASSIGNED
------- Additional Comments From jm@jmason.org 2005-12-01 03:07 -------
Created an attachment (id=3284)
--> (http://issues.apache.org/SpamAssassin/attachment.cgi?id=3284&action=view)
workaround patch
This patch adds some workaround code; instead of retrying indefinitely, it'll
retry 3 times then kill the child and allow it to respawn.
It's in trunk as r350101.
I think the bug will still occur -- it should be a lot less serious with this.
If anyone has any ideas, I'm all ears. ;)
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[Bug 4590] prefork: syswrite(6) failed
Posted by bu...@bugzilla.spamassassin.org.
http://issues.apache.org/SpamAssassin/show_bug.cgi?id=4590
------- Additional Comments From frank.urban@commerzbank.com 2006-07-12 05:51 -------
Hi Daryl,
great that you will try to take a look on this...
I think the problem is still there. My cronjob restart the spamd every houre
and this helps.
Whrn I remeber it right, the spamd has done nothing anymore after the last
entry in my logfile from Mar 18 05:04:18 and I have taken this "snip" at
arround 11:00.
So I switched of now again the cronjob. What should I do when the spamd died?
Frank
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[Bug 4590] prefork: syswrite(6) failed
Posted by bu...@bugzilla.spamassassin.org.
http://issues.apache.org/SpamAssassin/show_bug.cgi?id=4590
------- Additional Comments From frank.urban@commerzbank.com 2006-07-19 07:29 -------
Created an attachment (id=3594)
--> (http://issues.apache.org/SpamAssassin/attachment.cgi?id=3594&action=view)
DOS readable version
DOS readable version. changed with unix2dos
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[Bug 4590] prefork: syswrite(6) failed
Posted by bu...@bugzilla.spamassassin.org.
http://issues.apache.org/SpamAssassin/show_bug.cgi?id=4590
------- Additional Comments From kai@bolay.de 2006-11-02 13:37 -------
related to bug 5149?
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[Bug 4590] prefork: syswrite(6) failed
Posted by bu...@bugzilla.spamassassin.org.
http://bugzilla.spamassassin.org/show_bug.cgi?id=4590
------- Additional Comments From jeff@custommonkey.org 2005-10-04 06:27 -------
I'm seeing the same issue. Things work for a while then it'll start failing and
we have to restart spamd.
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[Bug 4590] prefork: syswrite(6) failed
Posted by bu...@bugzilla.spamassassin.org.
http://issues.apache.org/SpamAssassin/show_bug.cgi?id=4590
------- Additional Comments From grin@grin.hu 2006-09-20 07:17 -------
And happens again.
Guys, please some kind soul leave a comment whether there is some planned
improvement, or some workaround I could patch in. I tried brifly to examine the
code, but it is so nicely modular that I would have to examine most of SA's
source to come up with a hack, for which I have been lacking the time.
If I guess right, and this code is in the spamd server, would it be possible to
completely restart the whole mess? (It seems to be dead anyway, so kill
everything and restart cleanly, if there is no better idea. How to do that,
apart from die'ing and leaving extrnal restarter to take care of the restart?)
If this is in a child, would it be possible to suicide and leave the system to
go on?
[ Some solution would be extremely nice since this is a really major pain in he
ass... it just stops the whole spamd, which stalls all mailqueues, which
basically stops everything smtp around, which is not nice. I hate morning
phonecalls, how about you? :) ]
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[Bug 4590] prefork: syswrite(6) failed
Posted by bu...@bugzilla.spamassassin.org.
http://issues.apache.org/SpamAssassin/show_bug.cgi?id=4590
------- Additional Comments From jm@jmason.org 2007-03-23 04:50 -------
Frank, Peter, and anyone else seeing messages like this:
Sep 28 00:22:13 mail3 spamd[19736]: prefork: killed child 6120
at /usr/lib/perl5/site_perl/5.8.7/Mail/SpamAssassin/SpamdForkScaling.pm line
142.
Sep 28 00:22:13 mail3 spamd[19736]: prefork: select returned -1! recovering:
Bad file descriptor
Sep 28 00:22:13 mail3 spamd[19736]: spamd: handled cleanup of child pid 6120
due to SIGCHLD
Sep 28 00:22:13 mail3 spamd[19736]: prefork: select returned -1! recovering:
Bad file descriptor
I think you're seeing bug 5313:
http://issues.apache.org/SpamAssassin/show_bug.cgi?id=5313
(sorry Kai, I think you were right after all.)
Please try the patch in that bug and see if it helps.
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[Bug 4590] prefork: syswrite(6) failed
Posted by bu...@bugzilla.spamassassin.org.
http://issues.apache.org/SpamAssassin/show_bug.cgi?id=4590
------- Additional Comments From cshelton@indiana.edu 2006-01-23 02:48 -------
(In reply to comment #12)
> This patch adds some workaround code; instead of retrying indefinitely, it'll
> retry 3 times then kill the child and allow it to respawn.
>
> It's in trunk as r350101.
>
> I think the bug will still occur -- it should be a lot less serious with this.
> If anyone has any ideas, I'm all ears. ;)
I installed this patch a couple of days ago after encountering the exact problem
described in this bug. The patch seems to have fully resolved the problems that
I was having, where mail was very slow to get processed.
The patch seems reasonable to me, in that it averts a possible endless loop in
the code.
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[Bug 4590] prefork: syswrite(6) failed
Posted by bu...@bugzilla.spamassassin.org.
http://issues.apache.org/SpamAssassin/show_bug.cgi?id=4590
------- Additional Comments From frank.urban@commerzbank.com 2006-07-14 05:35 -------
Hello,
that should be all I can see in the log. After
Mar 18 05:04:18 mail1 spamd[15430]: prefork: select returned -1! recovering:
Bad file descriptor
I can see only this kind of line expect that what you can see below.
Since I switched of my cronjob yesterday nothing happened until now. Maybe
there was a change in Version 3.1.3 witch solve the problem? Before I got this
problem several times a day.
Frank
Mar 18 05:04:02 mail1 spamd[1550]: spamd: result: Y 24 -
BAYES_00,DCC_CHECK,DIGEST_MULTIPLE,ONLINE_PHARMACY,RAZOR2_CF_RANGE_51_100,RAZOR
2_CF_RANGE_E8_51_100,RAZOR2_CHECK,RCVD_IN_BL_SPAMCOP_NET,RCVD_IN_DSBL,RCVD_IN_N
JABL_PROXY,RCVD_IN_XBL,SPF_NEUTRAL,URIBL_JP_SURBL,URIBL_SBL,URIBL_SC_SURBL
scantime=2.1,size=1078,user=filter,uid=1002,required_score=6.0,rhost=localhost,
raddr=127.0.0.1,rport=37447,mid=<000301c64a39
$35ea32ea$64225a40@hmccgw>,bayes=0,autolearn=no
Mar 18 05:04:02 mail1 spamd[15430]: prefork: child states: IBBBI
Mar 18 05:04:16 mail1 spamd[15430]: prefork: retrying syswrite(): Resource
temporarily unavailable
at /usr/lib/perl5/site_perl/5.8.5/Mail/SpamAssassin/SpamdForkScaling.pm line
616.
Mar 18 05:04:16 mail1 spamd[15430]: prefork: syswrite(21) to 19194 failed on
try 2 at /usr/lib/perl5/site_perl/5.8.5/Mail/SpamAssassin/SpamdForkScaling.pm
line 593.
Mar 18 05:04:17 mail1 spamd[15430]: prefork: retrying syswrite(): Resource
temporarily unavailable
at /usr/lib/perl5/site_perl/5.8.5/Mail/SpamAssassin/SpamdForkScaling.pm line
616.
Mar 18 05:04:17 mail1 spamd[15430]: prefork: syswrite(21) to 19194 failed on
try 3 at /usr/lib/perl5/site_perl/5.8.5/Mail/SpamAssassin/SpamdForkScaling.pm
line 593.
Mar 18 05:04:18 mail1 spamd[15430]: prefork: retrying syswrite(): Resource
temporarily unavailable
at /usr/lib/perl5/site_perl/5.8.5/Mail/SpamAssassin/SpamdForkScaling.pm line
616.
Mar 18 05:04:18 mail1 spamd[15430]: prefork: syswrite(21) to 19194 failed on
try 4 at /usr/lib/perl5/site_perl/5.8.5/Mail/SpamAssassin/SpamdForkScaling.pm
line 593.
Mar 18 05:04:18 mail1 spamd[15430]: prefork: giving up
at /usr/lib/perl5/site_perl/5.8.5/Mail/SpamAssassin/SpamdForkScaling.pm line
595.
Mar 18 05:04:18 mail1 spamd[15430]: prefork: write of ping failed to 19194
fd=21:
at /usr/lib/perl5/site_perl/5.8.5/Mail/SpamAssassin/SpamdForkScaling.pm line
330.
Mar 18 05:04:18 mail1 spamd[15430]: prefork: killing failed child 19194 fd=21
at /usr/lib/perl5/site_perl/5.8.5/Mail/SpamAssassin/SpamdForkScaling.pm line
127.
Mar 18 05:04:18 mail1 spamd[15430]: prefork: killed child 19194
at /usr/lib/perl5/site_perl/5.8.5/Mail/SpamAssassin/SpamdForkScaling.pm line
141.
Mar 18 05:04:18 mail1 spamd[15430]: prefork: select returned -1! recovering:
Bad file descriptor
Mar 18 05:04:18 mail1 spamd[15430]: spamd: handled cleanup of child pid 19194
due to SIGCHLD
Mar 18 05:04:18 mail1 spamd[15430]: prefork: select returned -1! recovering:
Bad file descriptor
Mar 18 05:04:19 mail1 spamd[15430]: prefork: select returned -1! recovering:
Bad file descriptor
Mar 18 05:04:20 mail1 spamd[15430]: prefork: select returned -1! recovering:
Bad file descriptor
Mar 18 05:04:21 mail1 spamd[15430]: prefork: select returned -1! recovering:
Bad file descriptor
Mar 18 05:04:22 mail1 spamd[15430]: prefork: select returned -1! recovering:
Bad file descriptor
Mar 18 05:04:23 mail1 spamd[15430]: prefork: select returned -1! recovering:
Bad file descriptor
Mar 18 05:04:24 mail1 spamd[15430]: prefork: select returned -1! recovering:
Bad file descriptor
...
ar 18 05:09:17 mail1 spamd[15430]: prefork: select returned -1! recovering:
Bad file descriptor
Mar 18 05:09:18 mail1 spamd[15430]: prefork: select returned -1! recovering:
Bad file descriptor
Mar 18 05:09:19 mail1 spamd[15430]: prefork: select returned -1! recovering:
Bad file descriptor
Mar 18 05:09:19 mail1 spamd[1550]: prefork: sysread(10) failed after 300 secs
at /usr/lib/perl5/site_perl/5.8.5/Mail/SpamAssassin/SpamdForkScaling.pm line
544.
Mar 18 05:09:19 mail1 spamd[20338]: prefork: sysread(7) failed after 300 secs
at /usr/lib/perl5/site_perl/5.8.5/Mail/SpamAssassin/SpamdForkScaling.pm line
544.
Mar 18 05:09:19 mail1 spamd[15430]: spamd: handled cleanup of child pid 20338
due to SIGCHLD
Mar 18 05:09:19 mail1 spamd[15430]: prefork: select returned -1! recovering:
Bad file descriptor
Mar 18 05:09:19 mail1 spamd[15430]: prefork: select returned -1! recovering:
Bad file descriptor
Mar 18 05:09:20 mail1 spamd[15430]: prefork: select returned -1! recovering:
Bad file descriptor
Mar 18 05:09:21 mail1 spamd[15430]: prefork: select returned -1! recovering:
Bad file descriptor
...
Mar 18 06:07:29 mail1 spamd[15430]: prefork: select returned -1! recovering:
Bad file descriptor
Mar 18 06:07:30 mail1 spamd[15430]: prefork: select returned -1! recovering:
Bad file descriptor
Mar 18 06:07:30 mail1 spamc[29254]: connect(AF_INET) to spamd at 127.0.0.1
failed, retrying (#1 of 3):
Connection timed out
Mar 18 06:07:30 mail1 spamc[29256]: connect(AF_INET) to spamd at 127.0.0.1
failed, retrying (#1 of 3):
Connection timed out
Mar 18 06:07:30 mail1 spamc[29258]: connect(AF_INET) to spamd at 127.0.0.1
failed, retrying (#1 of 3):
Connection timed out
Mar 18 06:07:31 mail1 spamd[15430]: prefork: select returned -1! recovering:
Bad file descriptor
Mar 18 06:07:32 mail1 spamd[15430]: prefork: select returned -1! recovering:
Bad file descriptor
Mar 18 06:07:33 mail1 spamd[15430]: prefork: select returned -1! recovering:
Bad file descriptor
Mar 18 06:07:34 mail1 spamd[15430]: prefork: select returned -1! recovering:
Bad file descriptor
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[Bug 4590] prefork: syswrite(6) failed
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http://issues.apache.org/SpamAssassin/show_bug.cgi?id=4590
felicity@apache.org changed:
What |Removed |Added
----------------------------------------------------------------------------
Target Milestone|3.1.3 |3.1.4
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[Bug 4590] prefork: syswrite(6) failed
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------- Additional Comments From jm@jmason.org 2005-12-01 01:18 -------
Daryl -- thanks!
more info would def be welcome. what was the PID of the busy child? 30625?
can you post the entire strace somewhere?
where did the whois stuff come from? another plugin?
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------- Additional Comments From spamassassin@dostech.ca 2006-01-26 02:41 -------
Created an attachment (id=3347)
--> (http://issues.apache.org/SpamAssassin/attachment.cgi?id=3347&action=view)
log with patch #3284
Justin --
It looks like the patch prevented the loop but failed to "forget" the child (I
haven't really looked at the code).
I've got a 2GB strace log that I can extract a section out of if you want it,
along with complete mail logs and strace if you're interested.
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[Bug 4590] prefork: syswrite(6) failed
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http://issues.apache.org/SpamAssassin/show_bug.cgi?id=4590
Bug 4590 depends on bug 5313, which changed state.
Bug 5313 Summary: spamd error: 'prefork: select returned -1! recovering: Bad file descriptor'
http://issues.apache.org/SpamAssassin/show_bug.cgi?id=5313
What |Old Value |New Value
----------------------------------------------------------------------------
Status|REOPENED |ASSIGNED
Status|ASSIGNED |RESOLVED
Resolution| |FIXED
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Target Milestone|3.1.4 |3.1.5
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------- Additional Comments From grin@grin.hu 2006-09-20 20:03 -------
Created an attachment (id=3700)
--> (http://issues.apache.org/SpamAssassin/attachment.cgi?id=3700&action=view)
spamd restart hack
Run this as root, fill in admin email and check spamd restart command at the
end. It will restart SA in case of the problem. Hopefully. Not thoroughly
tested, use at your own risk.
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spamassassin@dostech.ca changed:
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----------------------------------------------------------------------------
Target Milestone|3.1.6 |3.1.7
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jm@jmason.org changed:
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CC| |tunc@eresen.com
------- Additional Comments From jm@jmason.org 2005-11-29 19:47 -------
*** Bug 4666 has been marked as a duplicate of this bug. ***
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[Bug 4590] prefork: syswrite(6) failed
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CC| |david@readingroom.com
------- Additional Comments From david@readingroom.com 2005-11-29 11:48 -------
Same here - Red Hat 9 / SpamAssassin 3.1.0. Problem began immediately after
upgrade to 3.1.0.
Nov 29 09:59:07 warfield spamd[25460]: prefork: syswrite(8) failed, retrying...
at /usr/lib/perl5/site_perl/5.8.0/Mail/SpamAssassin/SpamdForkScaling.pm line
554.
spamd options are:
/usr/bin/spamd -d -u exim --min-children 1 --max-children 10 --min-spare 1
--max-spare 3 -H --socketpath=/var/run/spamd.sock
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------- Additional Comments From jm@jmason.org 2007-03-29 12:53 -------
I'd appreciate it if anyone else running into prefork-related errors, try out
the latest patch at bug 5313 and report success/failure....
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------- Additional Comments From slamb@slamb.org 2006-09-20 07:35 -------
Re: comment #44:
Peter, I've been using "--round-robin" ever since it was reported as a workaround way back in comment
#8. Haven't hit this problem since, and it's been almost a year. If this is causing you grief, I say just throw
that option in.
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------- Additional Comments From jm@jmason.org 2006-11-02 14:00 -------
no, I don't think they're related.
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------- Additional Comments From jm@jmason.org 2006-11-02 13:33 -------
--debug output, or strace, would be useful I think...
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http://issues.apache.org/SpamAssassin/show_bug.cgi?id=4590
------- Additional Comments From schulz@adi.com 2006-09-25 13:19 -------
I think that the problem here is that none of the dev's can reliably
reproduce this bug and none of the traces provided allow them to track
down the exact cause of the problem. What is needed is for someone
who can reproduce this bug to dig in and track down the cause of the bug.
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[Bug 4590] prefork: syswrite(6) failed
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http://issues.apache.org/SpamAssassin/show_bug.cgi?id=4590
------- Additional Comments From frank.urban@commerzbank.com 2006-01-17 08:44 -------
Created an attachment (id=3334)
--> (http://issues.apache.org/SpamAssassin/attachment.cgi?id=3334&action=view)
Logfile2
one of my other servers had also problems since this time. There was only one
mail activ at this time. So this was shuer not a problem of the load of the
server.
Frank
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spamassassin@dostech.ca changed:
What |Removed |Added
----------------------------------------------------------------------------
Target Milestone|3.1.7 |3.1.8
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[Bug 4590] prefork: syswrite(6) failed
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http://issues.apache.org/SpamAssassin/show_bug.cgi?id=4590
Bug 4590 depends on bug 5313, which changed state.
Bug 5313 Summary: spamd error: 'prefork: select returned -1! recovering: Bad file descriptor'
http://issues.apache.org/SpamAssassin/show_bug.cgi?id=5313
What |Old Value |New Value
----------------------------------------------------------------------------
Status|ASSIGNED |RESOLVED
Resolution| |FIXED
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[Bug 4590] prefork: syswrite(6) failed
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------- Additional Comments From frank.urban@commerzbank.com 2006-07-19 07:27 -------
Created an attachment (id=3593)
--> (http://issues.apache.org/SpamAssassin/attachment.cgi?id=3593&action=view)
Part of maillog
now it happened again. Here the newest extract from my logfile
Frank
SpamAssassin 3.1.3
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[Bug 4590] prefork: syswrite(6) failed
Posted by bu...@bugzilla.spamassassin.org.
http://issues.apache.org/SpamAssassin/show_bug.cgi?id=4590
------- Additional Comments From spamassassin@dostech.ca 2006-01-14 02:19 -------
I've been running with the patch since you made it, but I've only ever seen this
problem the one time. It didn't even occur when the server hit a load average
of 900+ earlier in the week.
Frank --
I'd try it out and, please, let us know how it goes. It looks like it should
fix the problem and in my experience it doesn't cause any problems of it's own,
so it should be safe to use in production.
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------- Additional Comments From spamassassin@dostech.ca 2006-07-12 01:18 -------
Frank, sorry for the delay in looking at this, but it isn't clear from the above
snippet that this actually causes a failure of the spamd parent. It only shows
a screwed up child that gets killed off.
Are you still seeing this? Can you provide more info?
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CC| |dev@spamassassin.apache.org
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[Bug 4590] prefork: syswrite(6) failed
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------- Additional Comments From frank.urban@commerzbank.com 2006-01-17 08:29 -------
Created an attachment (id=3333)
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Logfile
I still have problems, but now with a different look (see attached Logfile)
In the night there where some minor problems with seemed to be catched by the
patch. But now at 08:15 the filter crashed again (see second part of the
log.txt)
Frank
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[Bug 4590] prefork: syswrite(6) failed
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------- Additional Comments From frank.urban@commerzbank.com 2006-01-13 07:50 -------
Hi,
I'm a little bit confused what I have to do now to avoid this bug?
Should I install the patch? Should I use --round-robin?
Or whatelse can I do?
Frank
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[Bug 4590] prefork: syswrite(6) failed
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http://issues.apache.org/SpamAssassin/show_bug.cgi?id=4590
------- Additional Comments From frank.urban@commerzbank.com 2006-03-20 08:24 -------
Hello,
is there still anyone working on this?
I got the same error again at the weekend now in Version 3.1.1.
Mar 18 05:04:16 mail1 spamd[15430]: prefork: retrying syswrite(): Resource
temporarily unavailable
at /usr/lib/perl5/site_perl/5.8.5/Mail/SpamAssassin/SpamdForkScaling.pm line
616.
Mar 18 05:04:16 mail1 spamd[15430]: prefork: syswrite(21) to 19194 failed on
try 2 at /usr/lib/perl5/site_perl/5.8.5/Mail/SpamAssassin/SpamdForkScaling.pm
line 593.
....
Mar 18 05:04:17 mail1 spamd[15430]: prefork: retrying syswrite(): Resource
temporarily unavailable
at /usr/lib/perl5/site_perl/5.8.5/Mail/SpamAssassin/SpamdForkScaling.pm line
616.
Mar 18 05:04:17 mail1 spamd[15430]: prefork: syswrite(21) to 19194 failed on
try 3 at /usr/lib/perl5/site_perl/5.8.5/Mail/SpamAssassin/SpamdForkScaling.pm
line 593.
prefork: retrying syswrite(): Resource temporarily unavailable
at /usr/lib/perl5/site_perl/5.8.5/Mail/SpamAssassin/SpamdForkScaling.pm line
616.
Mar 18 05:04:18 mail1 spamd[15430]: prefork: syswrite(21) to 19194 failed on
try 4 at /usr/lib/perl5/site_perl/5.8.5/Mail/SpamAssassin/SpamdForkScaling.pm
line 593.
Mar 18 05:04:18 mail1 spamd[15430]: prefork: giving up
at /usr/lib/perl5/site_perl/5.8.5/Mail/SpamAssassin/SpamdForkScaling.pm line
595.
Mar 18 05:04:18 mail1 spamd[15430]: prefork: write of ping failed to 19194
fd=21:
at /usr/lib/perl5/site_perl/5.8.5/Mail/SpamAssassin/SpamdForkScaling.pm line
330.
Mar 18 05:04:18 mail1 spamd[15430]: prefork: killing failed child 19194 fd=21
at /usr/lib/perl5/site_perl/5.8.5/Mail/SpamAssassin/SpamdForkScaling.pm line
127.
Mar 18 05:04:18 mail1 spamd[15430]: prefork: killed child 19194
at /usr/lib/perl5/site_perl/5.8.5/Mail/SpamAssassin/SpamdForkScaling.pm line
141.
Mar 18 05:04:18 mail1 spamd[15430]: prefork: select returned -1! recovering:
Bad file descriptor Mar 18 05:04:18 mail1 spamd[15430]: spamd: handled cleanup
of child pid 19194 due to SIGCHLD Mar 18 05:04:18 mail1 spamd[15430]: prefork:
select returned -1! recovering: Bad file descriptor Mar 18 05:04:18 mail1
postfix/smtpd[13451]: lost connection after DATA from unknown[60.50.129.32]
Mar 18 05:04:18 mail1 postfix/smtpd[13451]: disconnect from unknown
[60.50.129.32] Mar 18 05:04:19 mail1 spamd[15430]: prefork: select returned -
1! recovering: Bad file descriptor
So I will install againe a cronjob witch restart the spamd every houre...
Frank
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[Bug 4590] prefork: syswrite(6) failed
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http://issues.apache.org/SpamAssassin/show_bug.cgi?id=4590
------- Additional Comments From frank.urban@commerzbank.com 2006-01-19 07:52 -------
I'm still running in this problem every day. So I now installed a cron job
witch restart the spamd every houre. I hope this will help in a first step.
Frank
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[Bug 4590] prefork: syswrite(6) failed
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http://issues.apache.org/SpamAssassin/show_bug.cgi?id=4590
------- Additional Comments From jm@jmason.org 2006-01-13 20:22 -------
Frank --
nobody has reported any results with the patch, so I have no idea :(
has anyone tried the patch?
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------- Additional Comments From paulf@sthelens.ac.uk 2006-11-13 03:17 -------
I have been having this same issue on one of my boxen - SA 3.1.3
We also have clamAV installed - I don't recall this issue happening before we
installed ClamAV.
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------- Additional Comments From frank.urban@commerzbank.com 2006-01-16 08:45 -------
OK I installed the patch now. Let us the what will happen.
I had the problem 5 times last week. But there was now high load on the server
at this time...
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http://issues.apache.org/SpamAssassin/show_bug.cgi?id=4590
------- Additional Comments From spamassassin@dostech.ca 2006-07-13 22:30 -------
(In reply to comment #38)
> So I switched of now again the cronjob. What should I do when the spamd died?
For now I'm just looking to confirm that the following is indeed the last thing
logged by spamd:
[60.50.129.32] Mar 18 05:04:19 mail1 spamd[15430]: prefork: select returned -
1! recovering: Bad file descriptor
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------- Additional Comments From derbjunk@yahoo.com 2005-11-23 09:51 -------
Same here - using the port on FreeBSD 4.7, SA 3.1.0
Forking frustrating!
error: usage: $io->syswrite(BUF, LEN [, OFFSET]) at
/usr/local/lib/perl5/site_perl/5.6.1/Mail/SpamAssassin/SpamdForkScaling.pm line 544
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[Bug 4590] prefork: syswrite(6) failed
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http://issues.apache.org/SpamAssassin/show_bug.cgi?id=4590
------- Additional Comments From grin@grin.hu 2006-09-20 20:01 -------
(In reply to comment #45)
> Peter, I've been using "--round-robin" ever since it was reported as a
workaround way back in comment
Ermm, the problem is that as far as I remember RR spawns the maximal number of
SA, which is pretty memory-consuming in case of high maximum. Imagine a system
with average 4-5 spamd and the maximum of around 50 or more, where 50 allocates
pretty extensive amount of memory (and it grows substantially over time, doesn't
it for you?), which is usually very rarely needed.
But you're right, maybe this is a workaround. Other workaround is attached,
pretty much an "if you've got a hammer everything looks like a nail" approach. :)
Thanks.
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jm@jmason.org changed:
What |Removed |Added
----------------------------------------------------------------------------
Attachment #3284 is|0 |1
obsolete| |
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[Bug 4590] prefork: syswrite(6) failed
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jm@jmason.org changed:
What |Removed |Added
----------------------------------------------------------------------------
BugsThisDependsOn| |5313
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[Bug 4590] prefork: syswrite(6) failed
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------- Additional Comments From schulz@adi.com 2006-01-30 17:33 -------
If your redo or add to the patch, you might want to check the following comment:
# give it 1 second to recover. we retry indefinitely.
I expect that the 'retry indefinitely' part is wrong.
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spamassassin@dostech.ca changed:
What |Removed |Added
----------------------------------------------------------------------------
Target Milestone|3.1.8 |3.1.9
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[Bug 4590] prefork: syswrite(6) failed
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------- Additional Comments From spamassassin@dostech.ca 2005-11-30 09:47 -------
Here's a prefork log and a strace of both parent and children:
http://cyan.dostech.net/sa-bug4590/prefork.log.syswrite7
http://cyan.dostech.net/sa-bug4590/spamd-strace.syswrite7.trimmed
The busy child was a child that timed out an alarm on an open (WHOIS, "whois
$domain|");
Let me know if you need more of the strace log or the maillog.
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felicity@apache.org changed:
What |Removed |Added
----------------------------------------------------------------------------
Target Milestone|3.1.2 |3.1.3
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jm@jmason.org changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|REOPENED |RESOLVED
Resolution| |FIXED
------- Additional Comments From jm@jmason.org 2007-04-03 11:40 -------
OK, I'm marking this resolved, as (as far as I can tell) all the outstanding
reports are actually instances of bug 5313, which is now resolved ;)
reminder:
Mar 18 06:07:34 mail1 spamd[15430]: prefork: select returned -1! recovering:
Bad file descriptor
if you are seeing that message, please go to bug 5313, not this one.
in fact, any further *new* prefork bugs should probably be opened as new bugs
rather than comments here, to avoid confusion...
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[Bug 4590] prefork: syswrite(6) failed
Posted by bu...@bugzilla.spamassassin.org.
http://issues.apache.org/SpamAssassin/show_bug.cgi?id=4590
jm@jmason.org changed:
What |Removed |Added
----------------------------------------------------------------------------
OtherBugsDependingO| |4812
nThis| |
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[Bug 4590] prefork: syswrite(6) failed
Posted by bu...@bugzilla.spamassassin.org.
http://issues.apache.org/SpamAssassin/show_bug.cgi?id=4590
------- Additional Comments From frank.urban@commerzbank.com 2006-09-28 06:09 -------
The spamd restart program work great. I had 3 restarts this night.
Can someone give me a hint how I can include the hostname into the
informationmail?
system "echo 'SA restart on" . qx("hostname") . " at " . scalar
(localtime) . "' | mail $adminemail -s spamd-sux";
is that correct?
is this information helpfull?
mail3:/var/log # grep "spamd\[19736\]" mail
Sep 28 00:15:59 mail3 spamd[19736]: prefork: child states: IIBB
Sep 28 00:17:12 mail3 spamd[19736]: prefork: child states: IIBB
Sep 28 00:17:22 mail3 spamd[19736]: prefork: child states: IIBB
Sep 28 00:17:49 mail3 spamd[19736]: prefork: child states: IIBB
Sep 28 00:18:49 mail3 spamd[19736]: prefork: child states: IIBB
Sep 28 00:19:03 mail3 spamd[19736]: prefork: child states: IIBB
Sep 28 00:19:18 mail3 spamd[19736]: prefork: child states: IBBB
Sep 28 00:19:22 mail3 spamd[19736]: prefork: child states: IIBB
Sep 28 00:20:12 mail3 spamd[19736]: prefork: child states: IIBB
Sep 28 00:20:32 mail3 spamd[19736]: prefork: child states: BBBB
Sep 28 00:20:32 mail3 spamd[19736]: spamd: server successfully spawned child
process, pid 6176
Sep 28 00:20:32 mail3 spamd[19736]: prefork: child states: BBBIB
Sep 28 00:20:35 mail3 spamd[19736]: prefork: child states: IBBIB
Sep 28 00:20:37 mail3 spamd[19736]: prefork: child states: IBBIB
Sep 28 00:20:38 mail3 spamd[19736]: prefork: child states: IIBIB
Sep 28 00:20:38 mail3 spamd[19736]: spamd: handled cleanup of child pid 6176
due to SIGCHLD
Sep 28 00:20:38 mail3 spamd[19736]: prefork: child states: IIBB
Sep 28 00:20:42 mail3 spamd[19736]: prefork: child states: IIBB
Sep 28 00:20:56 mail3 spamd[19736]: prefork: child states: IIBB
Sep 28 00:21:10 mail3 spamd[19736]: prefork: child states: IIBB
Sep 28 00:21:15 mail3 spamd[19736]: prefork: child states: IIBB
Sep 28 00:21:41 mail3 spamd[19736]: prefork: child states: IIBB
Sep 28 00:21:43 mail3 spamd[19736]: prefork: child states: IIBB
Sep 28 00:22:00 mail3 spamd[19736]: prefork: child states: IIBB
Sep 28 00:22:09 mail3 spamd[19736]: prefork: child states: IIBB
Sep 28 00:22:11 mail3 spamd[19736]: prefork: retrying syswrite(): Resource
temporarily unavailable
at /usr/lib/perl5/site_perl/5.8.7/Mail/SpamAssassin/SpamdForkScaling.pm line
624.
Sep 28 00:22:11 mail3 spamd[19736]: prefork: syswrite(12) to 6120 failed on
try 2 at /usr/lib/perl5/site_perl/5.8.7/Mail/SpamAssassin/SpamdForkScaling.pm
line 601.
Sep 28 00:22:12 mail3 spamd[19736]: prefork: retrying syswrite(): Resource
temporarily unavailable
at /usr/lib/perl5/site_perl/5.8.7/Mail/SpamAssassin/SpamdForkScaling.pm line
624.
Sep 28 00:22:12 mail3 spamd[19736]: prefork: syswrite(12) to 6120 failed on
try 3 at /usr/lib/perl5/site_perl/5.8.7/Mail/SpamAssassin/SpamdForkScaling.pm
line 601.
Sep 28 00:22:13 mail3 spamd[19736]: prefork: retrying syswrite(): Resource
temporarily unavailable
at /usr/lib/perl5/site_perl/5.8.7/Mail/SpamAssassin/SpamdForkScaling.pm line
624.
Sep 28 00:22:13 mail3 spamd[19736]: prefork: syswrite(12) to 6120 failed on
try 4 at /usr/lib/perl5/site_perl/5.8.7/Mail/SpamAssassin/SpamdForkScaling.pm
line 601.
Sep 28 00:22:13 mail3 spamd[19736]: prefork: giving up
at /usr/lib/perl5/site_perl/5.8.7/Mail/SpamAssassin/SpamdForkScaling.pm line
603.
Sep 28 00:22:13 mail3 spamd[19736]: prefork: write of ping failed to 6120
fd=12: at /usr/lib/perl5/site_perl/5.8.7/Mail/SpamAssassin/SpamdForkScaling.pm
line 334.
Sep 28 00:22:13 mail3 spamd[19736]: prefork: killing failed child 6120 fd=12
at /usr/lib/perl5/site_perl/5.8.7/Mail/SpamAssassin/SpamdForkScaling.pm line
128.
Sep 28 00:22:13 mail3 spamd[19736]: prefork: killed child 6120
at /usr/lib/perl5/site_perl/5.8.7/Mail/SpamAssassin/SpamdForkScaling.pm line
142.
Sep 28 00:22:13 mail3 spamd[19736]: prefork: select returned -1! recovering:
Bad file descriptor
Sep 28 00:22:13 mail3 spamd[19736]: spamd: handled cleanup of child pid 6120
due to SIGCHLD
Sep 28 00:22:13 mail3 spamd[19736]: prefork: select returned -1! recovering:
Bad file descriptor
Sep 28 00:22:14 mail3 spamd[19736]: spamd: server killed by SIGTERM, shutting
down
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[Bug 4590] prefork: syswrite(6) failed
Posted by bu...@bugzilla.spamassassin.org.
http://issues.apache.org/SpamAssassin/show_bug.cgi?id=4590
jm@jmason.org changed:
What |Removed |Added
----------------------------------------------------------------------------
BugsThisDependsOn| |4696
------- Additional Comments From jm@jmason.org 2006-02-21 18:38 -------
OK, the fix for bug 4696 now includes this fix, too; if you're seeing this
issue, go to that bug and apply the patch immediately ;)
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[Bug 4590] prefork: syswrite(6) failed
Posted by bu...@bugzilla.spamassassin.org.
http://issues.apache.org/SpamAssassin/show_bug.cgi?id=4590
sidney@sidney.com changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|ASSIGNED |RESOLVED
Resolution| |FIXED
------- Additional Comments From sidney@sidney.com 2006-03-09 19:57 -------
Now that bug 4696 is fixed in the 3.1 branch, I think this can be closed as fixed.
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[Bug 4590] prefork: syswrite(6) failed
Posted by bu...@bugzilla.spamassassin.org.
http://issues.apache.org/SpamAssassin/show_bug.cgi?id=4590
------- Additional Comments From webmaster@dtshowtime.lu.eu.org 2005-10-28 15:54 -------
Same thing just happened on my Debian etch system here:
Oct 28 01:26:06 server spamd[15848]: prefork: syswrite(6) failed, retrying... at
/usr/share/perl5/Mail/SpamAssassin/SpamdForkScaling.pm line 554.
Oct 28 01:26:16 server last message repeated 2 times
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[Bug 4590] prefork: syswrite(6) failed
Posted by bu...@bugzilla.spamassassin.org.
http://issues.apache.org/SpamAssassin/show_bug.cgi?id=4590
------- Additional Comments From frank.urban@commerzbank.com 2007-03-26 23:30 -------
I applied the patch from bug 5313 yesterday morning.
Since this time I didn't see this problem again. Until yesterday if have seen
it 3 times a day and was only able to stay alive with the "spamd restart
hack ".
Looks good now...
Frank
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[Bug 4590] prefork: syswrite(6) failed
Posted by bu...@bugzilla.spamassassin.org.
http://issues.apache.org/SpamAssassin/show_bug.cgi?id=4590
------- Additional Comments From jm@jmason.org 2006-02-10 20:21 -------
There are some major bugfixes for the apache-style preforking subsystem in bug
4696. If you are seeing this issue, please try applying the patch in that bug,
and see if it helps!
(fwiw that minor comment thing is also fixed in the patch in that bug.)
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[Bug 4590] prefork: syswrite(6) failed
Posted by bu...@bugzilla.spamassassin.org.
http://issues.apache.org/SpamAssassin/show_bug.cgi?id=4590
------- Additional Comments From grin@grin.hu 2006-08-31 07:40 -------
Repeatedly same here, Debian/Linux sid:
Aug 29 21:26:24 Yikes spamd[8608]: prefork: retrying syswrite(): Resource
temporarily unavailable at usr/share/perl5/Mail/SpamAssassin/SpamdForkScaling.pm
line 623.
Aug 29 21:26:24 Yikes spamd[8608]: prefork: syswrite(8) to 1652 failed on try 2
at /usr/share/perl5/Mail/SpamAssassin/SpamdForkScaling.pm line 600.
Aug 29 21:26:25 Yikes spamd[8608]: prefork: retrying syswrite(): Resource
temporarily unavailable at
/usr/share/perl5/Mail/SpamAssassin/SpamdForkScaling.pm line 623.
Aug 29 21:26:25 Yikes spamd[8608]: prefork: syswrite(8) to 1652 failed on try 3
at /usr/share/perl5/Mail/SpamAssassin/SpamdForkScaling.pm line 600.
Aug 29 21:26:26 Yikes spamd[8608]: prefork: retrying syswrite(): Resource
temporarily unavailable at
/usr/share/perl5/Mail/SpamAssassin/SpamdForkScaling.pm line 623.
Aug 29 21:26:26 Yikes spamd[8608]: prefork: syswrite(8) to 1652 failed on try 4
at /usr/share/perl5/Mail/SpamAssassin/SpamdForkScaling.pm line 600.
Aug 29 21:26:26 Yikes spamd[8608]: prefork: giving up at
/usr/share/perl5/Mail/SpamAssassin/SpamdForkScaling.pm line 602.
Aug 29 21:26:26 Yikes spamd[8608]: prefork: write of ping failed to 1652 fd=8:
at /usr/share/perl5/Mail/SpamAssassin/SpamdForkScaling.pm line 333.
Aug 29 21:26:26 Yikes spamd[8608]: prefork: killing failed child 1652 fd=8 at
/usr/share/perl5/Mail/SpamAssassin/SpamdForkScaling.pm line 127.
Aug 29 21:26:26 Yikes spamd[8608]: prefork: killed child 1652 at
/usr/share/perl5/Mail/SpamAssassin/SpamdForkScaling.pm line 141.
Aug 29 21:26:26 Yikes spamd[8608]: spamd: handled cleanup of child pid 1652 due
to SIGCHLD
Aug 29 21:26:26 Yikes spamd[8608]: prefork: select returned -1! recovering: Bad
file descriptor
Aug 29 21:26:27 Yikes spamd[8608]: prefork: select returned -1! recovering: Bad
file descriptor
Aug 29 21:26:28 Yikes spamd[8608]: prefork: select returned -1! recovering: Bad
file descriptor
Aug 29 21:26:29 Yikes spamd[8608]: prefork: select returned -1! recovering: Bad
file descriptor
Aug 29 21:26:30 Yikes spamd[8608]: prefork: select returned -1! recovering: Bad
file descriptor
until spamd restarted.
# spamd --version
SpamAssassin Server version 3.1.4
running on Perl 5.8.8
with SSL support (IO::Socket::SSL 0.998)
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[Bug 4590] prefork: syswrite(6) failed
Posted by bu...@bugzilla.spamassassin.org.
http://issues.apache.org/SpamAssassin/show_bug.cgi?id=4590
------- Additional Comments From j.thorne@kew.org 2005-11-04 12:51 -------
Same thing here on RHEL3:
Nov 4 11:19:45 griffin spamd[28185]: prefork: syswrite(18) failed, retrying...
at
+/usr/lib/perl5/site_perl/5.8.0/Mail/SpamAssassin/SpamdForkScaling.pm line 554.
Nov 4 11:20:20 griffin last message repeated 7 time
Cannot connect to spamd once this message has appeared. Restarting gets rid of
the messages for a while. The options we're passing to spamd are:
SPAMDOPTIONS="-d -i 0.0.0.0 -H /tmp -A 193.128.242.5 -A 193.128.240.22 -A
193.128.240.33 -A 193.128.240.7 -A 193.128.242.4 -A 193.128.240.9 -A 127.0.0.1 -
-max-children=25 --max-conn-per-child=200 --min-spare=10"
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[Bug 4590] prefork: syswrite(6) failed
Posted by bu...@bugzilla.spamassassin.org.
http://issues.apache.org/SpamAssassin/show_bug.cgi?id=4590
------- Additional Comments From j.thorne@kew.org 2005-11-07 15:51 -------
This is not happening on the RHEL4 box here that is also running SA.
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[Bug 4590] prefork: syswrite(6) failed
Posted by bu...@bugzilla.spamassassin.org.
http://issues.apache.org/SpamAssassin/show_bug.cgi?id=4590
------- Additional Comments From jm@jmason.org 2005-11-29 19:49 -------
1. use the "--round-robin" switch to avoid this; it appears to be load-related,
and at that level of load, round-robin is marginally more efficient anyway.
2. if anyone can provide strace or truss output from *both* the parent and child
process when this occurs, I'd be very grateful. haven't been able to repro it here.
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