Re: Segmentation fault in PHP 7.0.3 (and earlier versions)

On 02/06/2016 10:10 AM, Simon Svensson wrote: > On 05/02/16 22:29, Rasmus Lerdorf wrote: >> On 02/05/2016 11:39 AM, Simon Svensson wrote: >>> I am unable to reproduce the error with this recompiled source, both >>> with the /usr/local/php70/bin/php and /usr/local/php70-debug/bin/php. >>> This is the same experience I had with earlier releases, where I have >>> been unable to reproduce the segmentation faults when recompiling (but >>> always have them occur from the ppa). >>> >>> Is there any guide for compiling the source? I could attempt to setup a >>> new virtual machine with Ubuntu 14.04 (instead of php7dev's Debian) to >>> reproduce the error, but I do know know the steps needed to compile >>> everything. >>> >>> The newly build, and working, versions: >>> >>> /usr/local/php70/bin/php --version: >>> PHP 7.0.4-dev (cli) (built: Feb 5 2016 19:14:08) ( NTS ) >>> Copyright (c) 1997-2016 The PHP Group >>> Zend Engine v3.0.0, Copyright (c) 1998-2016 Zend Technologies >>> with Zend OPcache v7.0.6-dev, Copyright (c) 1999-2016, by Zend >>> Technologies >>> >>> /usr/local/php70-debug/bin/php --version: >>> PHP 7.0.4-dev (cli) (built: Feb 5 2016 19:19:10) ( NTS DEBUG ) >>> Copyright (c) 1997-2016 The PHP Group >>> Zend Engine v3.0.0, Copyright (c) 1998-2016 Zend Technologies >>> with Zend OPcache v7.0.6-dev, Copyright (c) 1999-2016, by Zend >>> Technologies >> >> "php -i" will show you the configure flags that were used to build it, >> so you could try to match those to see if you can reproduce with sources >> from php.net. Otherwise, if it is something that only happens with the >> distro build then there isn't a while lot we can do to help you. >> >> -Rasmus >> >> > > An update to avoid leaving the thread hanging in suspense. > > I was in contact with Ondřej Surý, the author of the PPA I was using, > and got help in grabbing build-logs so that I should be able to > reproduce the compile locally, this time without all the optimization. > However, since I still do not speak configure-ish I failed to resolve > all packages/libraries needed for a complete build, but I managed to > smash my keyboard enough to get a working configure & make. > > My test-suite now terminates like this: > > PHPUnit 4.8.21 by Sebastian Bergmann and contributors. > > Runtime: PHP 7.0.3 > Configuration: /root/web/phpunit.xml > > ........................................... 43 / 1229 ( 3%) > ........................................... 86 / 1229 ( 6%) > ........................................... 129 / 1229 ( 10%) > ........................................... 172 / 1229 ( 13%) > ........................................... 215 / 1229 ( 17%) > ...............R........................... 258 / 1229 ( 20%) > ........................................... 301 / 1229 ( 24%) > ........................................... 344 / 1229 ( 27%) > .R.R.....................R................. 387 / 1229 ( 31%) > ........................................... 430 / 1229 ( 34%) > ........................................... 473 / 1229 ( 38%) > ........................................... 516 / 1229 ( 41%) > ........................................... 559 / 1229 ( 45%) > ........................................... 602 / 1229 ( 48%) > ........................................... 645 / 1229 ( 52%) > .php: /root/php-src/Zend/zend_execute.h:275: > zend_vm_stack_free_call_frame_ex: Assertion > `(executor_globals.vm_stack_top) > (zval *) (executor_globals.vm_stack) > && (executor_globals.vm_stack_end) > (zval *) > (executor_globals.vm_stack) && (executor_globals.vm_stack_top) <= > (executor_globals.vm_stack_end)' failed. > Aborted (core dumped) > > The failed assertion and my backtrace matches exactly that of > https://bugs.php.net/bug.php?id=71474 which was fixed a few > days ago, > and is not part of the 7.0.3 release. It's part of the PHP-7.0 branch, > so I presume this will be fixed in the 7.0.4 release. > > I've recompiled using the PHP-7.0 branch, and my test-suite works there. > I look forward to the 7.0.4 release! Thank you very much for your persistence on this. It is motivating for us when people put a bit of effort into tracking down issues. And yes, that fix will be in 7.0.4. It came in too late to be part of 7.0.3. -Rasmus

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