os-linux/3531: Bad file number: flock; Exiting

[Brad Cox <bc...@virtualschool.edu>]

>Number:         3531
>Category:       os-linux
>Synopsis:       Bad file number: flock; Exiting
>Confidential:   no
>Severity:       non-critical
>Priority:       medium
>Responsible:    apache
>State:          open
>Class:          sw-bug
>Submitter-Id:   apache
>Arrival-Date:   Mon Dec 14 15:30:01 PST 1998
>Last-Modified:
>Originator:     bcox@virtualschool.edu
>Organization:
apache
>Release:        1.3.3
>Environment:
Linux www.virtualschool.edu 2.0.30 #1 Sun Jul 19 14:49:01 EDT 1998 i586 unknown
Server Version: Apache/1.3.3
Server Built: Dec 14 1998 18:52:42
>Description:
After working flawlessly for months, apache has started crashing (several times a day) with this in the error log

[Mon Dec 14 18:12:26 1998] [emerg] (9)Bad file number: flock: LOCK_EX: Error getting accept lock. Exiting!

Nothing had changed; no recompiles, installs, etc. I've rebooted, fsck'd, etc, but nothing helped.


 
>How-To-Repeat:
I don't see how you can. This worked great for months, then kaboom. 
>Fix:
Lincoln Stein reports he's encountered the very same problem and that this has been reported several times in this DB. On his suggestion, I've made this change to include/ap_config.h and am trying it out now. Too soon to say whether this fixes it.

/* flock is faster ... but hasn't been tested on 1.x systems */
/* bjc: #define USE_FLOCK_SERIALIZED_ACCEPT */
#define USE_FCNTL_SERIALIZED_ACCEPT
>Audit-Trail:
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