lucid server: mod_mem_cache with mod_dav_svn crashes apache for certain files
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
| Apache2 Web Server |
Confirmed
|
Medium
|
||
| apache2 (Ubuntu) |
Medium
|
Unassigned |
Bug Description
Binary package hint: apache2
On a lucid server we see apache segmentation faulting at a high rate. This causes svn checkouts to fail depending on the client (e.g. on Ubunut 9.10 subversion with neon as dav lib is okay, serf is not). I was able to reproduce it with a minimal setup:
Using lucid from today, i.e. with
apache2.2-bin: 2.2.14-5ubuntu8
libapache2-svn: 1.6.6dfsg-2ubuntu1
with mods-enabled:
alias auth_basic authz_default authz_host cache dav dav_svn deflate info mem_cache mime
dav_svn.conf:
<Location /svn>
DAV svn
SVNParentPath /var/lib/svn
SVNListParentPath on
SVNPathAuthz off
</Location>
mem_cache.conf is untouched. I created an svn repo /var/lib/
If I disable mem_cache it works. (Yes, I know that we shouldn't have it enabled for serving svn to begin with and I am thankful for mem_cache pointing this out but that's not the point here :-)
Cheers, Axel.
Chuck Short (zulcss) wrote : | #1 |
Changed in apache2 (Ubuntu): | |
importance: | Undecided → Medium |
status: | New → Incomplete |
Axel (naxel) wrote : | #2 |
Sure, here it is.
#0 0x00007ffff5cc613e in ?? () from /usr/lib/
#1 0x00007ffff589c1ed in ?? () from /usr/lib/
#2 0x00007ffff5ab694a in ?? () from /usr/lib/
#3 0x00007ffff7fd6140 in ap_run_handler (r=0x7ffff834eeb8) at /build/
#4 0x00007ffff7fd9aa8 in ap_invoke_handler (r=0x7ffff834eeb8) at /build/
#5 0x00007ffff7fe7678 in ap_process_request (r=0x7ffff834eeb8) at /build/
#6 0x00007ffff7fe4528 in ap_process_
#7 0x00007ffff7fddcf8 in ap_run_
#8 0x00007ffff7fec037 in child_main (child_
at /build/
#9 0x00007ffff7fec306 in make_child (s=0x7ffff8214938, slot=0) at /build/
#10 0x00007ffff7fec953 in ap_mpm_run (_pconf=<value optimized out>, plog=<value optimized out>, s=<value optimized out>)
at /build/
#11 0x00007ffff7fc2350 in main (argc=2, argv=0x7fffffff
Looks like the modules don't have debug info - that's really unfortunate... Let me know if I can help with providing them somehow (i.e. whether I should build the modules from source).
Chuck Short (zulcss) wrote : | #3 |
Thank you for your bug report. This bug has been reported to the developers of the software. You can track it and make comments at:
Changed in apache2 (Ubuntu): | |
status: | Incomplete → Triaged |
Changed in apache2: | |
importance: | Unknown → Medium |
status: | Unknown → Confirmed |
Thank you for taking the time to report this bug and helping to make Ubuntu better. Please try to obtain a backtrace following the instructions at http:// wiki.ubuntu. com/DebuggingPr ogramCrash and upload the backtrace (as an attachment) to the bug report. This will greatly help us in tracking down your problem.