Ticket #305 (closed defect: wontfix)
Apache 2.2.8 Segfaults occasionally (eAccelerator 0.9.5.1)
| Reported by: | rinck | Owned by: | somebody |
|---|---|---|---|
| Priority: | major | Milestone: | |
| Component: | eAccelerator | Version: | 0.9.5 |
| Keywords: | segfault | Cc: |
Description
I am using eAccelerator 0.9.5.1 with php 5.2.6_rc3 on Gentoo. So far everything ran fine and stable. Problems started after updating the Kernel (from linux-2.6.20.2 to linux-2.6.25.2).
From then on i get occasional segfaults in the logs while everything seems to run fine.
dmesg:
apache2[5646]: segfault at b ip b6937180 sp bfab5ec0 error 4 in eaccelerator.so[b6931000+26000] apache2[5618]: segfault at b ip b6937180 sp bfab5ec0 error 4 in eaccelerator.so[b6931000+26000] apache2[6122]: segfault at b ip b6937180 sp bfab5ed0 error 4 in eaccelerator.so[b6931000+26000] apache2[6167]: segfault at b ip b6937180 sp bfab5ed0 error 4 in eaccelerator.so[b6931000+26000] apache2[15687]: segfault at b ip b6937180 sp bfab5ed0 error 4 in eaccelerator.so[b6931000+26000] apache2[8817]: segfault at b ip b6937180 sp bfab5ed0 error 4 in eaccelerator.so[b6931000+26000] apache2[9890]: segfault at b ip b6937180 sp bfab5ed0 error 4 in eaccelerator.so[b6931000+26000] apache2[26389]: segfault at b ip b6937180 sp bfab5ed0 error 4 in eaccelerator.so[b6931000+26000] apache2[1691]: segfault at b ip b6937180 sp bfab5ed0 error 4 in eaccelerator.so[b6931000+26000] apache2[17140]: segfault at b ip b6937180 sp bfab5ed0 error 4 in eaccelerator.so[b6931000+26000] apache2[22665]: segfault at b ip b6937180 sp bfab5ed0 error 4 in eaccelerator.so[b6931000+26000] apache2[26631]: segfault at b ip b6937180 sp bfab5ed0 error 4 in eaccelerator.so[b6931000+26000]
Those are like 2 or 3 segfaults per day on an otherwise stable production server. I try to reproduce it on my development server so far without success.
Change History
comment:2 Changed 2 years ago by rinck
I've been able to reproduce it on the development server by running ab on a typo3 page:
May 14 13:56:15 devserver apache2[20949]: segfault at b ip b696319e sp bfacf6a0 error 4 in eaccelerator.so[b695d000+27000] May 14 13:56:15 devserver apache2[10614]: segfault at b ip b696319e sp bfacf690 error 4 in eaccelerator.so[b695d000+27000] May 14 13:56:15 devserver apache2[20909]: segfault at b ip b696319e sp bfacf6a0 error 4 in eaccelerator.so[b695d000+27000] May 14 13:56:15 devserver apache2[10613]: segfault at b ip b696319e sp bfacf670 error 4 in eaccelerator.so[b695d000+27000]
anyone is interested in having me test some things? known issues i didn't find? suggestions?
comment:3 Changed 2 years ago by rinck
BTW: i searched the forums and the web for segmentation faults in eaccelerator and i found quite a lot. But nothing that happens just after upgrading the Kernel and not before. Strange. Anyway: the solution to all issues seems to be to deinstall eaccelerator and to use xcache instead.
comment:4 Changed 7 months ago by bart
- Status changed from new to closed
- Resolution set to wontfix
This is a bug that is highly dependant on the scripts that you are parsing. A lot of these bugs have been fixed over the years. Other probably still remain. I'm going to close this bug because it is already quite old.
comment:5 Changed 6 months ago by sim
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