Edit report at https://bugs.php.net/bug.php?id=66460&edit=1
ID: 66460
Comment by: spam008 at evil dot net dot pl
Reported by: spam2 at rhsoft dot net
Summary: PHP 5.5.7 and 5.5.8 horrible unstable
Status: Open
Type: Bug
Package: opcache
Operating System: Linux
PHP Version: 5.5.8
Block user comment: N
Private report: N
New Comment:
Setting opcache.revalidate_path = 1 didn`t help. I will try 5.5.8 without loading opcache. Just to
be 100% sure it is opcache issue.
Previous Comments:
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[2014-01-10 19:21:34] spam2 at rhsoft dot net
crap - on the machine in front of me it makes no
differnce how i configure opcache, it crashed right after restart
and never generated a single page of our self-developed cms, after
restart httpd and open phpMyAdmin i wondered that this did not
crash and after that for now it appears that my cms-page also runs
stable
this is completly unpredictable and i doubt that the other reporter
which confirmed this behavior and me are the only persons facing this
whatever changes are done to "opcache" they are broken
[zend]
zend_extension = "/usr/lib64/php/modules/opcache.so"
opcache.enable = 1
opcache.enable_cli = 0
opcache.load_comments = 0
opcache.save_comments = 0
opcache.use_cwd = 1
opcache.validate_timestamps = 1
opcache.revalidate_freq = 5
opcache.revalidate_path = 1
opcache.max_accelerated_files = 1000
opcache.memory_consumption = 128
opcache.interned_strings_buffer = 8
opcache.max_file_size = 262144
opcache.enable_file_override = 0
opcache.fast_shutdown = 1
opcache.error_log = "/var/log/php_error.log"
opcache.log_verbosity_level = 1
------------------------------------------------------------------------
[2014-01-10 19:05:26] spam008 at evil dot net dot pl
I have EXEACLY same observation. It only happens on three vhosts running Typo3 (multiple versions).
It happens on both of my WWW servers. Im going back to 5.5.5 right now. Im using
opcache too.
PHP-FPM self compiled on Slackware64 14.1.
One of my opcache`s config:
zend_extension = "opcache.so"
opcache.memory_consumption = 256
opcache.interned_strings_buffer = 8
opcache.max_accelerated_files = 10000
opcache.revalidate_freq = 0
opcache.validate_timestamps = On
opcache.fast_shutdown = Off
opcache.enable = On
opcache.enable_cli = Off
opcache.max_file_size = 0
opcache.use_cwd = On
opcache.log_verbosity_level = 2
opcache.load_comments = On
opcache.save_comments = On
------------------------------------------------------------------------
[2014-01-10 19:00:54] spam2 at rhsoft dot net
OK, i come tighter to the circumstances
on the machine where it permanently crahed for now re-enable "opcache.revalidate_path"
seems to workarund the problem, but
i am far away to trust because it's too unpredictable on different
machines / websites using the same core-codebase of our applications
___________________________________________________
for now stable or at least more stable
[zend]
zend_extension = "/usr/lib64/php/modules/opcache.so"
opcache.enable = 1
opcache.enable_cli = 0
opcache.load_comments = 0
opcache.save_comments = 0
opcache.use_cwd = 1
opcache.validate_timestamps = 1
opcache.revalidate_freq = 5
opcache.revalidate_path = 1
opcache.max_accelerated_files = 200
opcache.memory_consumption = 16
opcache.max_file_size = 262144
opcache.enable_file_override = 0
opcache.fast_shutdown = 1
opcache.error_log = "/www/_logs/php_error.log"
opcache.log_verbosity_level = 1
___________________________________________________
previous config which was stable over months
[zend]
zend_extension = "/usr/lib64/php/modules/opcache.so"
opcache.enable = 1
opcache.enable_cli = 0
opcache.load_comments = 0
opcache.save_comments = 0
opcache.use_cwd = 1
opcache.validate_timestamps = 1
opcache.revalidate_freq = 5
opcache.revalidate_path = 0
opcache.max_accelerated_files = 200
opcache.memory_consumption = 16
opcache.max_file_size = 262144
opcache.enable_file_override = 1
opcache.fast_shutdown = 1
opcache.error_log = "/www/_logs/php_error.log"
opcache.log_verbosity_level = 1
------------------------------------------------------------------------
[2014-01-10 18:54:17] spam2 at rhsoft dot net
maybe the real configuration helps to reproduce
i would appreciate a unified diff for "rpmbuild" with reverts
the latest opcache changes to the state of 5.5.6 and matching
the 5.5.8 tarball to provide feedback
in the meantime i try to reproduce it with a small script instead
a large application, at the moment i am out of ideas
[zend]
zend_extension = "/usr/lib64/php/modules/opcache.so"
opcache.enable = 1
opcache.enable_cli = 0
opcache.load_comments = 0
opcache.save_comments = 0
opcache.use_cwd = 1
opcache.validate_timestamps = 1
opcache.revalidate_freq = 5
opcache.revalidate_path = 0
opcache.max_accelerated_files = 200
opcache.memory_consumption = 16
opcache.max_file_size = 262144
opcache.enable_file_override = 0
opcache.fast_shutdown = 1
opcache.error_log = "/www/_logs/php_error.log"
opcache.log_verbosity_level = 1
------------------------------------------------------------------------
[2014-01-10 18:39:28] spam2 at rhsoft dot net
Description:
------------
PHP 5.5.6 is running fine with opcache
PHP 5.5.7 and 5.5.8
[Fri Jan 10 19:31:12.026088 2014] [core:notice] [pid 17100] AH00052: child pid 17108 exit signal
Segmentation fault (11)
[Fri Jan 10 19:31:13.027956 2014] [core:notice] [pid 17100] AH00052: child pid 17142 exit signal
Segmentation fault (11)
[Fri Jan 10 19:31:14.030639 2014] [core:notice] [pid 17100] AH00052: child pid 17150 exit signal
Segmentation fault (11)
[Fri Jan 10 19:31:14.030679 2014] [core:notice] [pid 17100] AH00052: child pid 17151 exit signal
Segmentation fault (11)
[Fri Jan 10 19:31:15.034780 2014] [core:notice] [pid 17100] AH00052: child pid 17152 exit signal
Segmentation fault (11)
[Fri Jan 10 19:31:15.034820 2014] [core:notice] [pid 17100] AH00052: child pid 17153 exit signal
Segmentation fault (11)
[Fri Jan 10 19:31:15.034827 2014] [core:notice] [pid 17100] AH00052: child pid 17154 exit signal
Segmentation fault (11)
[Fri Jan 10 19:31:15.034834 2014] [core:notice] [pid 17100] AH00052: child pid 17155 exit signal
Segmentation fault (11)
[Fri Jan 10 19:31:16.038616 2014] [core:notice] [pid 17100] AH00052: child pid 17156 exit signal
Segmentation fault (11)
[Fri Jan 10 19:31:16.038652 2014] [core:notice] [pid 17100] AH00052: child pid 17157 exit signal
Segmentation fault (11)
[Fri Jan 10 19:31:17.042936 2014] [core:notice] [pid 17100] AH00052: child pid 17159 exit signal
Segmentation fault (11)
[Fri Jan 10 19:31:17.042968 2014] [core:notice] [pid 17100] AH00052: child pid 17160 exit signal
Segmentation fault (11)
_________________________________________
on one of my testing-machines disable "opcache.enable_file_override" which was enabled
with PHP 5.4 all the time makes it better, on another server no way - permenently segfaults until i
stop to load opcache
the really strange is that with "ab -c 100 -n 50000" i am unable to reprocude a single
segfault, sometimes depending on luck also not with browsing, the next time nearly any request is
answered with a Firefox error that the server unexpectly closed the connection
Test script:
---------------
currently i have no easy test-script, only cms pages and complexer libraries used and as said: it
may take hours to reproduce and in other cases i update a production server to PHP > 5.5.6 and it
gets terrible unstable shortly after restart httpd
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Edit this bug report at https://bugs.php.net/bug.php?id=66460&edit=1