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Bug #75688 Assertions firing during mass linting
Submitted: 2017-12-14 17:37 UTC Modified: 2018-06-24 04:25 UTC
From: chris at ocproducts dot com Assigned:
Status: No Feedback Package: opcache
PHP Version: 7.2.0 OS: Mac OS High Sierra (fully patche
Private report: No CVE-ID: None
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 [2017-12-14 17:37 UTC] chris at ocproducts dot com 
Description:
------------
I can trigger the following assertions...

Assertion failed: (phi->use_chains[pred_offset] == ((void*)0)), function zend_ssa_remove_phi_source, file /Users/chrisgraham/dev/php-7.2.0/ext/opcache/Optimizer/zend_ssa.c, line 1282.

Assertion failed: (op_array->opcodes[def].result_type & ((1<<1)|(1<<2))), function dce_live_ranges, file /Users/chrisgraham/dev/php-7.2.0/ext/opcache/Optimizer/dce.c, line 590.

Assertion failed: (op_array->opcodes[b->start].opcode == 70 || op_array->opcodes[b->start].opcode == 127), function zend_ssa_remove_nops, file /Users/chrisgraham/dev/php-7.2.0/ext/opcache/Optimizer/dfa_pass.c, line 165.


I can't narrow this down to a test case, but I may be able to help you reproduce it.

Download getid3, and do a mass lint operation...

find . -name "*.php" -exec php -l {} \;

Hopefully you'll reproduce and see assertions scattered in it.
Linting the individual files scanned before or after the assertion doesn't seem to cause it, so I guess it is either concurrency related, intermittent, or has some kind of delay effect (but really I don't know!).

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 [2017-12-16 22:31 UTC] nikic@php.net
-Status: Open +Status: Feedback
 [2017-12-16 22:31 UTC] nikic@php.net 
I can't reproduce this. My guess is that this has already been fixed by https://github.com/php/php-src/commit/b6294bbc6cfc4f8fb23a2c7f2d18cbd85001c056. Can you check whether the current PHP-7.2 resolves this for you as well?
 [2017-12-19 01:58 UTC] graham dot chris at gmail dot com 
I tested on git HEAD of the day I submitted the bug (much newer than this commit) and PHP 7.2.0.

To double check I tried again on both (after a git pull and make)...

chriss-mbp:getid3 chrisgraham$ find . -name "*.php" -exec ~/dev/php-src/sapi/cli/php -l {} \;
No syntax errors detected in ./extension.cache.dbm.php
No syntax errors detected in ./extension.cache.mysql.php
No syntax errors detected in ./getid3.lib.php
No syntax errors detected in ./getid3.php
No syntax errors detected in ./module.archive.gzip.php
No syntax errors detected in ./module.archive.rar.php
No syntax errors detected in ./module.archive.szip.php
No syntax errors detected in ./module.archive.tar.php
No syntax errors detected in ./module.archive.zip.php
Assertion failed: (op_array->opcodes[def].result_type & ((1<<1)|(1<<2))), function dce_live_ranges, file /Users/chrisgraham/dev/php-src/ext/opcache/Optimizer/dce.c, line 514.
No syntax errors detected in ./module.audio-video.bink.php
No syntax errors detected in ./module.audio-video.flv.php
Assertion failed: (op_array->opcodes[def].result_type & ((1<<1)|(1<<2))), function dce_live_ranges, file /Users/chrisgraham/dev/php-src/ext/opcache/Optimizer/dce.c, line 514.
No syntax errors detected in ./module.audio-video.mpeg.php
No syntax errors detected in ./module.audio-video.nsv.php
No syntax errors detected in ./module.audio-video.quicktime.php
No syntax errors detected in ./module.audio-video.real.php
No syntax errors detected in ./module.audio-video.riff.php
No syntax errors detected in ./module.audio-video.swf.php
No syntax errors detected in ./module.audio.aac.php
No syntax errors detected in ./module.audio.ac3.php
No syntax errors detected in ./module.audio.au.php
No syntax errors detected in ./module.audio.avr.php
No syntax errors detected in ./module.audio.bonk.php
No syntax errors detected in ./module.audio.dss.php
No syntax errors detected in ./module.audio.dts.php
No syntax errors detected in ./module.audio.flac.php
No syntax errors detected in ./module.audio.la.php
No syntax errors detected in ./module.audio.lpac.php
No syntax errors detected in ./module.audio.midi.php
No syntax errors detected in ./module.audio.mod.php
No syntax errors detected in ./module.audio.monkey.php
Assertion failed: (op_array->opcodes[def].result_type & ((1<<1)|(1<<2))), function dce_live_ranges, file /Users/chrisgraham/dev/php-src/ext/opcache/Optimizer/dce.c, line 514.
No syntax errors detected in ./module.audio.mpc.php
No syntax errors detected in ./module.audio.ogg.php
No syntax errors detected in ./module.audio.optimfrog.php
No syntax errors detected in ./module.audio.rkau.php
No syntax errors detected in ./module.audio.shorten.php
No syntax errors detected in ./module.audio.tta.php
No syntax errors detected in ./module.audio.voc.php
No syntax errors detected in ./module.audio.vqf.php
No syntax errors detected in ./module.audio.wavpack.php
^C
chriss-mbp:getid3 chrisgraham$ sudo nano /etc/php.ini
chriss-mbp:getid3 chrisgraham$ find . -name "*.php" -exec ~/dev/php-7.2.0/sapi/cli/php -l {} \;
No syntax errors detected in ./extension.cache.dbm.php
No syntax errors detected in ./extension.cache.mysql.php
No syntax errors detected in ./getid3.lib.php
No syntax errors detected in ./getid3.php
No syntax errors detected in ./module.archive.gzip.php
No syntax errors detected in ./module.archive.rar.php
No syntax errors detected in ./module.archive.szip.php
No syntax errors detected in ./module.archive.tar.php
No syntax errors detected in ./module.archive.zip.php
Assertion failed: (op_array->opcodes[def].result_type & ((1<<1)|(1<<2))), function dce_live_ranges, file /Users/chrisgraham/dev/php-7.2.0/ext/opcache/Optimizer/dce.c, line 590.
No syntax errors detected in ./module.audio-video.bink.php
No syntax errors detected in ./module.audio-video.flv.php
Assertion failed: (op_array->opcodes[def].result_type & ((1<<1)|(1<<2))), function dce_live_ranges, file /Users/chrisgraham/dev/php-7.2.0/ext/opcache/Optimizer/dce.c, line 590.
No syntax errors detected in ./module.audio-video.mpeg.php
No syntax errors detected in ./module.audio-video.nsv.php
No syntax errors detected in ./module.audio-video.quicktime.php
No syntax errors detected in ./module.audio-video.real.php
No syntax errors detected in ./module.audio-video.riff.php
No syntax errors detected in ./module.audio-video.swf.php
No syntax errors detected in ./module.audio.aac.php
No syntax errors detected in ./module.audio.ac3.php
No syntax errors detected in ./module.audio.au.php
No syntax errors detected in ./module.audio.avr.php
No syntax errors detected in ./module.audio.bonk.php
No syntax errors detected in ./module.audio.dss.php
^C

Maybe it is Mac-specific somehow.
 [2018-06-24 04:25 UTC] php-bugs at lists dot php dot net 
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