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Posted to bugs@httpd.apache.org by bu...@apache.org on 2003/07/09 10:39:03 UTC
DO NOT REPLY [Bug 21430] New: -
Apache dumps when configured as caching proxy
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http://nagoya.apache.org/bugzilla/show_bug.cgi?id=21430
Apache dumps when configured as caching proxy
Summary: Apache dumps when configured as caching proxy
Product: Apache httpd-2.0
Version: 2.0.46
Platform: Other
OS/Version: All
Status: NEW
Severity: Critical
Priority: Other
Component: mod_proxy
AssignedTo: bugs@httpd.apache.org
ReportedBy: sragavan@novell.com
Steps:
1. Configure a Origin server to send documents that will expire in 5 seconds
(Just to get the problem soon).
ExpiresActive On
ExpiresDefault "now plus 5 seconds"
2. Configure a Proxy server to cache requests.
3. Send a query like
GET http://164.99.152.95/srini.txt HTTP/1.1
HOST: 164.99.152.95
Connection: Keep-Alive
to the Proxy server, to get srini.txt from Origin server
4. It returns the document from Origin server.Also caches that.
HTTP/1.1 200 OK
Date: Wed, 09 Jul 2003 07:41:59 GMT
Server: Apache/2.0.46 (Win32)
Cache-Control: max-age=5, no-transform
Expires: Wed, 09 Jul 2003 07:50:17 GMT
Last-Modified: Mon, 07 Jul 2003 11:27:52 GMT
ETag: "1bbad-25-65a0c418"
Accept-Ranges: bytes
Content-Length: 37
Content-Type: text/plain
Via: 1.1 164.99.152.95
�� ����∙ ���ԡ֡����� �ɦҦ����� �ܦ�HI HOW ARE YOU
5. Give the Same query again after (10 seconds, allow the cache to become
stale). The apache dumps core.
The scenario is that it re-validates what is there in the Cache.
I tried it on Netware it abends(Netware core dump). But from the attachment of
defect #15869, attachment#(id=7167), it happens on unix as well. The scenario
is also same. It revalidates the cache in that defect also and dumps.
Stack Trace of Netware:
Stack: --A9E8B230 ?
B504B3AF (PROXY.NLM|(Code Start)+3AF)
--00000000 ?
-B504F000 (PROXY.NLM|(Data Start)+0)
--00000006 ?
--00000001 ?
--A9E8B230 ?
B42D1414 (APACHE2.NLM|APACHE2@ap_run_fixups+34)
--A9E8B230 ?
--00000000 ?
--B4F831D0 (EXPIRES.NLM|_LibCPostlude+391B)
--00000000 ?
--A9E8B230 ?
B42D1C18 (APACHE2.NLM|APACHE2@ap_process_request_internal+2F8)
--A9E8B230 ?
--00000001 ?
--A9E8B230 ?
--A9E8B230 ?
B42B062A (APACHE2.NLM|ap_process_request+1A)
--A9E8B230 ?
--B4F83298 (EXPIRES.NLM|_LibCPostlude+39E3)
B42AC5A2 (APACHE2.NLM|APACHE2@ap_bucket_error_create+3C2)
For unix trace, please see the defect#15869, attachment id (id=7168).
I was able to see this on 2.0.45 as well as 2.0.46. Dont know about any
previous or next release.
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