Bug #71702 [Opn]: Seg fault - continuation of #71492
| From: | cmb@php.net | Date: | Sat, 20 Aug 2016 13:32:16 +0000 |
| Subject: | Bug #71702 [Opn]: Seg fault - continuation of #71492 | ||
| References: | 1 | Groups: | php.bugs |
| Request: | Send a blank email to php-bugs+get-203418@lists.php.net to get a copy of this message | ||
Edit report at https://bugs.php.net/bug.php?id=71702&edit=1
ID: 71702
Updated by: cmb@php.net
Reported by: Birman at Cerberox dot com
Summary: Seg fault - continuation of #71492
Status: Open
Type: Bug
Package: PCRE related
Operating System: CentOS 7.1.1503
PHP Version: 7.0.3
Block user comment: N
Private report: N
New Comment:
Follow-up to bug #71492.
> PCRE Library version according to phpinfo(): 8.37 2015-04-28
The issue might have been solved in 8.38. Consider to update.
Anyhow, without a reproduce script or at least a backtrace it's
unlikely that we can find and fix the bug.
Previous Comments:
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[2016-03-02 15:35:29] Birman at Cerberox dot com
Description:
------------
This is continuation of #71492. I tried to set it to Re-Opened as instructed, but it kept saying
I'm not allowed to change the bug to that state.
Hi! Sorry for late reply, got a bit occupied.
I've been monitoring the situation and the segmentation faults are not entirely gone. There is
a lot less of them now though, however, they now occur at very fixed intervals: there's a
series of seg faults happening after every 24 hours and ~1 second. First it's 10 seg fault
errors, then 35 minutes later 11 seg fault errors and then some individual cases over the night.
This all repeats every 24 hours and it always starts almost exactly at the same time.
The web service experience is better though as I no longer experience ERR_NO_RESPONSE messages
during loading and I haven't heard any complaints from users either.
Unfortunately I'm no longer able to produce stacktraces, because after installing PHP7, the
instructions I got from here back when I made another bug report simply do not work anymore. The
first trace I posted here was generated via a dirty method (which's instructions I also got
from here) by running httpd via gdb. However, the web service becomes pretty much unusable during
this, because loading a simple page can take 2 minutes or even longer and I can't keep it this
way for hours.
PCRE Library version according to phpinfo(): 8.37 2015-04-28
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Edit this bug report at https://bugs.php.net/bug.php?id=71702&edit=1