Bug 78019 - mod_ssl won't start up after unclean shutdown
Summary: mod_ssl won't start up after unclean shutdown
Alias: None
Product: Red Hat Linux
Classification: Retired
Component: httpd
Version: 8.0
Hardware: i386
OS: Linux
Target Milestone: ---
Assignee: Joe Orton
QA Contact: Brian Brock
Depends On:
TreeView+ depends on / blocked
Reported: 2002-11-17 19:30 UTC by Chris Ricker
Modified: 2007-04-18 16:48 UTC (History)
1 user (show)

Fixed In Version:
Doc Type: Bug Fix
Doc Text:
Clone Of:
Last Closed: 2003-09-04 07:40:03 UTC

Attachments (Terms of Use)
httpd-ssl configuration file (10.95 KB, text/plain)
2002-12-11 14:54 UTC, Chris Ricker
no flags Details

System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2003:240 0 normal SHIPPED_LIVE : Updated httpd packages fix Apache security vulnerabilities 2003-09-04 04:00:00 UTC

Description Chris Ricker 2002-11-17 19:30:01 UTC
After I installed the 2.4.18-18.8.0 kernel errata yesterday and rebooted, httpd
always died shortly after starting:

[Sat Nov 16 09:14:22 2002] [notice] Apache/2.0.40 (Red Hat Linux) configured -- 
resuming normal operations
[Sat Nov 16 09:24:57 2002] [error] Cannot allocate shared memory: (17)File exist

Manually stracing revealed the problem to be:

open("/var/cache/mod_ssl/ssl_gcache_data", O_WRONLY|O_CREAT|O_EXCL, 0666) = -1
EEXIST (File exists)
gettimeofday({1037557121, 414293}, NULL) = 0
write(7, "[Sun Nov 17 11:18:41 2002] [erro"..., 82) = 82
_exit(1)                                = ?

After I deleted the ssl_gcache_data file, httpd worked again.

I'm not sure what happened here -- probably a one-time quirk thing that's not

Comment 1 Chris Ricker 2002-12-08 23:07:29 UTC
I just had this happen again -- Apache segfaulted while running.

I eventually noticed and bounced the service (/etc/init.d/httpd restart).
Although that said it started Apache [ok], Apache was exiting shortly after the

strace showed it to be the same problem (existance of this ssl cache file)

Comment 2 Joe Orton 2002-12-11 11:08:31 UTC
Are you using the default session cache settings? Can you post your

Comment 3 Joe Orton 2002-12-11 13:09:24 UTC
I've reproduced this using the shmht session cache (including what looks like
segfault on shutdown); are you using shmht? It appears that shmht isn't actually
caching any sessions either, so I'd advise using shmcb instead, which does
appear to work correctly in my testing.

Comment 4 Chris Ricker 2002-12-11 14:53:05 UTC
I'm just using shm

I'll attach the conf in a sec

Comment 5 Chris Ricker 2002-12-11 14:54:35 UTC
Created attachment 88384 [details]
httpd-ssl configuration file

Comment 6 Joe Orton 2002-12-13 16:44:39 UTC
This should be fixed by the mm erratum:


*** This bug has been marked as a duplicate of 74543 ***

Comment 7 Chris Ricker 2002-12-13 16:54:14 UTC
Um, I'm on RHL 8.0. That erratum is for 7.x only

Comment 8 Joe Orton 2002-12-13 16:57:29 UTC
Eeek, sorry. That comment was aimed for a different bug.

Comment 9 Gary Goldberg 2003-03-25 15:20:42 UTC
Also showing this problem, exactly as written.

Comment 10 Mark J. Cox 2003-09-04 07:40:03 UTC
An errata has been issued which should help the problem described in this bug report. 
This report is therefore being closed with a resolution of ERRATA. For more information
on the solution and/or where to find the updated files, please follow the link below. You may reopen 
this bug report if the solution does not work for you.


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