Edit report at https://bugs.php.net/bug.php?id=71261&edit=1
ID: 71261
User updated by: jo at feuersee dot de
Reported by: jo at feuersee dot de
Summary: Wrong bytecode in cache of array index named 'init'
containing 0 indexed subarr
Status: Open
Type: Bug
Package: opcache
Operating System: Linux
PHP Version: 7.0.1
Block user comment: N
Private report: N
New Comment:
THX. Unfortunately, the used binaries for openSUSE Leap 42.1 (from http://download.opensuse.org/repositories/devel:/languages:/php:/php7/openSUSE_Leap_42.1/)
have debug mode disabled.
I'll check over the WE wether installing PHP7 from source is less painful than changing the app
to work in CLI context.
Previous Comments:
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[2016-01-01 19:56:44] nikic@php.net
If your code is runnable using CLI, the easiest way to get a backtrace is through valgrind. Just run
valgrind php ...args...
Alternatively, using gdb run "gdb --args php ...args..." and then "r" followed
by "bt" in the gdb prompt.
If it doesn't run through cli it's probably easiest to get the backtrace from a core file,
we have some info on that here: https://bugs.php.net/bugs-generating-backtrace.php
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[2016-01-01 19:35:32] jo at feuersee dot de
Yep, it crashes with opcache.protect_memory=1 "child pid 2844 exit signal Segmentation
fault"
Unfortunately, xdebug fails to start due to API version 320151012.
Is there another convenient way to provide a backtrace?
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[2016-01-01 18:11:52] nikic@php.net
Thanks, so the optimizer is not the culprit. Can you do a run with opcache.protect_memory=1 and see
if it crashes (segfault or some such)? And if so, get a backtrace?
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[2016-01-01 18:03:55] jo at feuersee dot de
All opcache related ini settings were at default.
Changing opcache.optimization_level=0 did not help, the problem still occurs.
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[2016-01-01 17:54:50] nikic@php.net
Could you check if the problem goes away if you run with opcache.optimization_level=0?
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