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Bug #74306 php-fpm child exited with code 0
Submitted: 2017-03-24 08:45 UTC Modified: -
Votes:15
Avg. Score:4.5 ± 1.1
Reproduced:12 of 12 (100.0%)
Same Version:5 (41.7%)
Same OS:3 (25.0%)
From: please at forget dot me dot uk Assigned:
Status: Open Package: FPM related
PHP Version: 7.0.17 OS: FreeBSD 11
Private report: No CVE-ID: None
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 [2017-03-24 08:45 UTC] please at forget dot me dot uk
Description:
------------
log bellow happens randomly, pages generated by php-fpm are cut after <80kb with ??? characters. there is no backtrace. nginx respond correctly without problems. This affects php files only. removed zip and zlib modules did not help. removing opscache do not help. nginx gzip disabled/enabled. changing fastcgi buffers did not help. this happpens on several servers it is not hardware related. nginx is in standard configuration. once php-fpm start to fail all server pages are failing, but nginx still produce 200 response.
restarting php-fpm helps. php.ini is in standard configuration. this start to happening from 7.0.16


[18-Mar-2017 15:41:49] NOTICE: [pool www] child 80582 exited with code 0 after 0.005648 seconds from start
[18-Mar-2017 15:41:49] NOTICE: [pool www] child 80584 started
[18-Mar-2017 15:41:49] NOTICE: [pool www] child 80583 exited with code 0 after 0.005877 seconds from start
[18-Mar-2017 15:41:49] NOTICE: [pool www] child 80585 started
[18-Mar-2017 15:41:49] NOTICE: [pool www] child 80581 exited with code 0 after 0.007763 seconds from start
[18-Mar-2017 15:41:49] NOTICE: [pool www] child 80586 started
[18-Mar-2017 15:41:49] NOTICE: [pool www] child 80585 exited with code 0 after 0.005653 seconds from start
[18-Mar-2017 15:41:49] NOTICE: [pool www] child 80587 started
[18-Mar-2017 15:41:49] NOTICE: [pool www] child 80586 exited with code 0 after 0.005820 seconds from start
[18-Mar-2017 15:41:49] NOTICE: [pool www] child 80588 started



PHP 7.0.17 (cli) (built: Mar 17 2017 02:07:44) ( NTS )
Copyright (c) 1997-2017 The PHP Group
Zend Engine v3.0.0, Copyright (c) 1998-2017 Zend Technologies
    with Zend OPcache v7.0.17, Copyright (c) 1999-2017, by Zend Technologies

pm = dynamic
pm.max_children = 25
pm.start_servers = 2
pm.min_spare_servers = 2
pm.max_spare_servers = 3
pm.max_requests = 0 ;changing to 500

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Test script:
---------------
any php / custom / wordpress / etc - that produce result longer than 62kb or 82kb

Expected result:
----------------
full page php response.

Actual result:
--------------
any php page is cut to 62-80kbs with ending character ���������

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 [2017-03-24 09:34 UTC] krageon+phpnet at gmail dot com
My hypothesis is that this will reproduce your bug. Can you verify?

https://github.com/xuavis/php-src/commit/8744ecfcc2e8196b67b4dee8a89e969c2de27e74
 [2017-03-24 16:33 UTC] please at forget dot me dot uk
It looks very very similar, I am not sure which function is trigerring it in my case as I have multiple websites running. There was no problems a month a go..
 
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