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Bug #76396 Error in `php-fpm: pool www': munmap_chunk(): invalid pointer
Submitted: 2018-05-30 20:09 UTC Modified: 2021-02-14 04:22 UTC
Votes:4
Avg. Score:3.2 ± 1.5
Reproduced:3 of 3 (100.0%)
Same Version:1 (33.3%)
Same OS:1 (33.3%)
From: robert at accettura dot com Assigned: cmb (profile)
Status: No Feedback Package: opcache
PHP Version: 7.2.6 OS: Ubuntu 16.04
Private report: No CVE-ID: None
View Developer Edit
 [2018-05-30 20:09 UTC] robert at accettura dot com 
Description:
------------
After a few dozen reloads of a page or pages php-fpm starts to segfault.

Expected result:
----------------
No segfaults

Actual result:
--------------
*** Error in `php-fpm: pool www': munmap_chunk(): invalid pointer: 0x0000555555cc0aa0 ***
======= Backtrace: =========
/lib/x86_64-linux-gnu/libc.so.6(+0x777e5)[0x7ffff5bbe7e5]
/lib/x86_64-linux-gnu/libc.so.6(cfree+0x1a8)[0x7ffff5bcb698]
php-fpm: pool www(+0x2bd757)[0x555555811757]
php-fpm: pool www(+0x2bd84c)[0x55555581184c]
php-fpm: pool www(virtual_file_ex+0x13c)[0x5555558125bc]
php-fpm: pool www(tsrm_realpath+0xc6)[0x555555813926]
php-fpm: pool www(php_resolve_path+0x1b8)[0x555555781388]
/usr/lib/php/20170718/phar.so(+0x9339)[0x7fffe5998339]
/usr/lib/php/20170718/opcache.so(+0x11407)[0x7ffff24c5407]
/usr/lib/php/20170718/opcache.so(+0x12ea6)[0x7ffff24c6ea6]
php-fpm: pool www(compile_filename+0x17b)[0x5555557a568b]
php-fpm: pool www(+0x2f1c4a)[0x555555845c4a]
php-fpm: pool www(+0x331e3f)[0x555555885e3f]
php-fpm: pool www(execute_ex+0x44f2)[0x55555588e9b2]
php-fpm: pool www(zend_call_function+0x742)[0x5555557d0d42]
php-fpm: pool www(+0x17ad4d)[0x5555556ced4d]
php-fpm: pool www(zend_call_function+0x621)[0x5555557d0c21]
php-fpm: pool www(zend_lookup_class_ex+0x284)[0x5555557d1414]
php-fpm: pool www(zend_fetch_class_by_name+0x18)[0x5555557d1d38]
php-fpm: pool www(+0x32ecc7)[0x555555882cc7]
php-fpm: pool www(execute_ex+0x21ab)[0x55555588c66b]
php-fpm: pool www(zend_call_function+0x742)[0x5555557d0d42]
php-fpm: pool www(+0x1b96f1)[0x55555570d6f1]
php-fpm: pool www(execute_ex+0x6106)[0x5555558905c6]
php-fpm: pool www(zend_execute+0x11e)[0x555555892a7e]
php-fpm: pool www(zend_execute_scripts+0xc3)[0x5555557e1443]
php-fpm: pool www(php_execute_script+0x2e0)[0x55555577c6e0]
php-fpm: pool www(+0xdfd89)[0x555555633d89]
/lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0xf0)[0x7ffff5b67830]
php-fpm: pool www(_start+0x29)[0x555555634bb9]

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 [2018-08-27 14:26 UTC] bukka@php.net
-Package: FPM related +Package: opcache
 [2018-08-27 14:26 UTC] bukka@php.net 
This doesn't seem to be fpm related as it is happening after compiling file and using opcache. Not sure 100% if it's opcache but it's more likely than fpm. I think you might need to provide a bit more info (like your opcache configuration and the script that causes that) so it can be recreated by some opcache / engine dev.
 [2021-02-01 15:07 UTC] cmb@php.net
-Status: Open +Status: Feedback -Assigned To: +Assigned To: cmb
 [2021-02-01 15:07 UTC] cmb@php.net 
Does this still happen to you with any of the actively supported
PHP versions[1]?

[1] <https://www.php.net/supported-versions.php>
 [2021-02-14 04:22 UTC] php-bugs at lists dot php dot net 
No feedback was provided. The bug is being suspended because
we assume that you are no longer experiencing the problem.
If this is not the case and you are able to provide the
information that was requested earlier, please do so and
change the status of the bug back to "Re-Opened". Thank you.
 
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