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Elog crashing with "segfault" during file upload, posted by Jesse Wodin on Thu Jul 17 01:16:49 2008

Re: Elog crashing with "segfault" during file upload, posted by Jesse Wodin on Fri Jul 18 08:18:18 2008

Message ID: 65928 Entry time: Fri Jul 18 08:18:18 2008 In reply to: 65927

Icon:

Author:

Jesse Wodin

Author Email:

jwodin@slac.stanford.edu

Category:

Question

OS:

Linux

ELOG Version:

2.7.4-2111

Subject:

Re: Elog crashing with "segfault" during file upload

Jesse Wodin wrote:

Hi there, I just compiled and installed elog on a machine running the newest Ubuntu server. Everything went fine - no problems. Running elog on it's own (no apache). I moved over a bunch of logbooks from an older elog, which seemed to work. Now, elog seems to crash when people are uploading files. Here is a snip from my syslog, and you can see each time it crashes with "error 4."

Jul 16 14:02:45 GrattaLab3old elogd[4526]: elogd 2.7.4 built Jul 15 2008, 18:44:44
Jul 16 14:02:45 GrattaLab3old elogd[4526]: revision 2111
Jul 16 14:02:45 GrattaLab3old elogd[4526]: FCKedit detected
Jul 16 14:02:45 GrattaLab3old elogd[4526]: ImageMagick detected
Jul 16 14:02:45 GrattaLab3old elogd[4526]: Server listening on port 8080 ...
Jul 16 16:02:42 GrattaLab3old kernel: [10631.276626] elogd[4526]: segfault at b4466000 eip 080adf19 esp bfa281d0 error 4
Jul 16 16:05:24 GrattaLab3old elogd[5509]: elogd 2.7.4 built Jul 15 2008, 18:44:44
Jul 16 16:05:24 GrattaLab3old elogd[5509]: revision 2111
Jul 16 16:05:24 GrattaLab3old elogd[5509]: FCKedit detected
Jul 16 16:05:24 GrattaLab3old elogd[5509]: ImageMagick detected
Jul 16 16:05:35 GrattaLab3old elogd[5509]: Server listening on port 8080 ...
Jul 16 16:06:06 GrattaLab3old kernel: [10834.637427] elogd[5509]: segfault at 091d7000 eip 080adf19 esp bfc313f0 error 4
Jul 16 16:07:10 GrattaLab3old elogd[5517]: elogd 2.7.4 built Jul 15 2008, 18:44:44
Jul 16 16:07:10 GrattaLab3old elogd[5517]: revision 2111
Jul 16 16:07:10 GrattaLab3old elogd[5517]: FCKedit detected
Jul 16 16:07:10 GrattaLab3old elogd[5517]: ImageMagick detected
Jul 16 16:07:10 GrattaLab3old elogd[5517]: Server listening on port 8080 ...
Jul 16 16:07:49 GrattaLab3old kernel: [10937.923301] elogd[5517]: segfault at b7c0d000 eip 080adf19 esp bffc1780 error 4

I run elog as:

Usr = elog

Grp = elog

/usr/local/sbin/elog -p 8080 -c /usr/local/elog/elogd_exo.cfg -D

where elogd_exo is my config file. Nothing special in my config file.

Another funny problem. When I'm uploading a file, the syslog says this:

Jul 17 23:12:52 exo-elog elogd[4745]: Falling back to default group "elog"
Jul 17 23:12:52 exo-elog elogd[4745]: Falling back to default user "elog"
Jul 17 23:12:52 exo-elog elogd[4745]: Cannot restore original GID/UID.
Jul 17 23:12:52 exo-elog elogd[4745]: Cannot remove pidfile "/var/run/elogd.pid" ; Permission denied
Jul 17 23:12:52 exo-elog elogd[4749]: Falling back to default group "elog"
Jul 17 23:12:52 exo-elog elogd[4749]: Falling back to default user "elog"
Jul 17 23:12:52 exo-elog elogd[4749]: Cannot restore original GID/UID.
Jul 17 23:12:52 exo-elog elogd[4749]: Cannot remove pidfile "/var/run/elogd.pid" ; Permission denied
Jul 17 23:12:56 exo-elog elogd[4753]: Falling back to default group "elog"
Jul 17 23:12:56 exo-elog elogd[4753]: Falling back to default user "elog"
Jul 17 23:12:56 exo-elog elogd[4753]: Cannot restore original GID/UID.
Jul 17 23:12:56 exo-elog elogd[4753]: Cannot remove pidfile "/var/run/elogd.pid" ; Permission denied
Jul 17 23:12:56 exo-elog elogd[4757]: Falling back to default group "elog"
Jul 17 23:12:56 exo-elog elogd[4757]: Falling back to default user "elog"
Jul 17 23:12:56 exo-elog elogd[4757]: Cannot restore original GID/UID.
Jul 17 23:12:56 exo-elog elogd[4757]: Cannot remove pidfile "/var/run/elogd.pid" ; Permission denied
Jul 17 23:12:56 exo-elog elogd[4761]: Falling back to default group "elog"
Jul 17 23:12:56 exo-elog elogd[4761]: Falling back to default user "elog"
Jul 17 23:12:56 exo-elog elogd[4761]: Cannot restore original GID/UID.
Jul 17 23:12:56 exo-elog elogd[4761]: Cannot remove pidfile "/var/run/elogd.pid" ; Permission denied
Jul 17 23:12:56 exo-elog elogd[4765]: Falling back to default group "elog"
Jul 17 23:12:56 exo-elog elogd[4765]: Falling back to default user "elog"
Jul 17 23:12:56 exo-elog elogd[4765]: Cannot restore original GID/UID.
Jul 17 23:12:56 exo-elog elogd[4765]: Cannot remove pidfile "/var/run/elogd.pid" ; Permission denied
Jul 17 23:13:00 exo-elog elogd[4769]: Falling back to default group "elog"
Jul 17 23:13:00 exo-elog elogd[4769]: Falling back to default user "elog"
Jul 17 23:13:00 exo-elog elogd[4769]: Cannot restore original GID/UID.
Jul 17 23:13:00 exo-elog elogd[4769]: Cannot remove pidfile "/var/run/elogd.pid" ; Permission denied
Jul 17 23:13:00 exo-elog elogd[4773]: Falling back to default group "elog"
Jul 17 23:13:00 exo-elog elogd[4773]: Falling back to default user "elog"
Jul 17 23:13:00 exo-elog elogd[4773]: Cannot restore original GID/UID.
Jul 17 23:13:00 exo-elog elogd[4773]: Cannot remove pidfile "/var/run/elogd.pid" ; Permission denied
Jul 17 23:13:39 exo-elog kernel: [ 127.737506] elogd[4510]: segfault at b7b43000 eip 080adf19 esp bfdeeb00 error 4

and then crashes!

ELOG V3.1.5-3fb85fa6