[Bug 61376] New: httpd segfault after receiving graceful/restart signals

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[Bug 61376] New: httpd segfault after receiving graceful/restart signals

Bugzilla from bugzilla@apache.org
https://bz.apache.org/bugzilla/show_bug.cgi?id=61376

            Bug ID: 61376
           Summary: httpd segfault after receiving graceful/restart
                    signals
           Product: Apache httpd-2
           Version: 2.4.27
          Hardware: PC
            Status: NEW
          Severity: normal
          Priority: P2
         Component: All
          Assignee: [hidden email]
          Reporter: [hidden email]
  Target Milestone: ---

httpd segfault after every graceful/restart. Compiled with solaris studio 12.3
on a solaris 10 x86 server. No problem with httpd-2.4.25. This bug is only
present for 2.4.26 and 2.4.27.

Core file analysis output (solaris 11.3 x86):
......
threading model: native threads
status: process terminated by SIGSEGV (Segmentation Fault), pid=4359 uid=1000


                ** Thread stack($c) **
                ----------------------
0x59ac0e0(80f5cf0, 811c9c0, 81259f0)
ap_run_pre_config+0x57(80f5cf0, 811c9c0, 81259f0)
main+0xb2c(6, feffeb40, feffeb5c, feffeafc)
_start+0x67(6, feffec26, feffec3e, feffec41, feffec5b, feffec5e)

......

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[Bug 61376] httpd segfault after receiving graceful/restart signals

Bugzilla from bugzilla@apache.org
https://bz.apache.org/bugzilla/show_bug.cgi?id=61376

Eric Covener <[hidden email]> changed:

           What    |Removed                     |Added
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                 OS|                            |All

--- Comment #1 from Eric Covener <[hidden email]> ---
(In reply to zhaojz518 from comment #0)

> httpd segfault after every graceful/restart. Compiled with solaris studio
> 12.3 on a solaris 10 x86 server. No problem with httpd-2.4.25. This bug is
> only present for 2.4.26 and 2.4.27.
>
> Core file analysis output (solaris 11.3 x86):
> ......
> threading model: native threads
> status: process terminated by SIGSEGV (Segmentation Fault), pid=4359 uid=1000
>                
>                
>                 ** Thread stack($c) **
>                 ----------------------
> 0x59ac0e0(80f5cf0, 811c9c0, 81259f0)
> ap_run_pre_config+0x57(80f5cf0, 811c9c0, 81259f0)
> main+0xb2c(6, feffeb40, feffeb5c, feffeafc)
> _start+0x67(6, feffec26, feffec3e, feffec41, feffec5b, feffec5e)
>
> ......

Do you load mod_auth_digest? Does it fail w/o it?

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[Bug 61376] httpd segfault after receiving graceful/restart signals

Bugzilla from bugzilla@apache.org
In reply to this post by Bugzilla from bugzilla@apache.org
https://bz.apache.org/bugzilla/show_bug.cgi?id=61376

--- Comment #2 from [hidden email] ---
We use mod_auth_digest, but it still segfault without it. I also tried not
loading mod_info and mod_status, same results.

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[Bug 61376] httpd segfault after receiving graceful/restart signals

Bugzilla from bugzilla@apache.org
In reply to this post by Bugzilla from bugzilla@apache.org
https://bz.apache.org/bugzilla/show_bug.cgi?id=61376

--- Comment #3 from Eric Covener <[hidden email]> ---
Do you use a loadable MPM? I am thinking PR60487 somehow.

reverting the changes from:
http://svn.apache.org/viewvc?view=revision&revision=1797368
would be another good test.

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[Bug 61376] httpd segfault after receiving graceful/restart signals

Bugzilla from bugzilla@apache.org
In reply to this post by Bugzilla from bugzilla@apache.org
https://bz.apache.org/bugzilla/show_bug.cgi?id=61376

--- Comment #4 from [hidden email] ---
Yes. We use loadable mpms. But same results after I compiled static prefork and
event mpms for 2.4.27. How do I roll back just revision 1797368 from the 2.4.27
release? I am not familiar with the apache repository. Can you provide a
tarball for it if it is not too much trouble?

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[Bug 61376] httpd segfault after receiving graceful/restart signals

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https://bz.apache.org/bugzilla/show_bug.cgi?id=61376

--- Comment #5 from [hidden email] ---
On the 2.4.27 tree, I reverted all six files from revision 1797368 to 2.4.25
version. I recompiled with static event mpm, but still same results - segfault
at ap_run_pre_config?

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