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RE: [PHP] Segmenation fault




Hi Frank,

> -----Original Message-----
> From: Frank Arensmeier [mailto:farensmeier@xxxxxxxxx]
> Sent: Sunday, June 21, 2015 12:05 AM
> To: php-general@xxxxxxxxxxxxx General
> Subject: [PHP] Segmenation fault
> 
> Hi List!
> 
> I am working on a CLI script (PHP 5.5.25) that parses and imports large
amounts
> of data into a database. Usually, the script runs for 5-15 minutes. For
the most
> part, the script is working just fine. But for some reason, it seems to
hit some
> limit and PHP crashes with a segmentation fault. I managed to hook GDB to
the
> PHP process and got a backtrace. Unfortunately, I am not so much wiser
than
> before.
> 
> Can someone be so kind and point me into the right direction and give me a
hint
> why PHP crashes? The backtrace:
> 
> Program received signal EXC_BAD_ACCESS, Could not access memory.
> Reason: KERN_INVALID_ADDRESS at address: 0x0000000000000018
> 0x000000010e8f416f in zend_signal_handler_unblock ()
> (gdb) bt
> #0  0x000000010e8f416f in zend_signal_handler_unblock ()
> #1  0x000000010e8b47d5 in _zend_mm_alloc_int ()
> #2  0x000000010e884cd4 in vspprintf ()
> #3  0x000000010f5e112f in xdebug_error_cb ()
> #4  0x000000010e8d5875 in zend_error ()
> #5  0x000000010e8f4121 in zend_signal_handler ()
> #6  0x000000010e8f3fae in zend_signal_handler_defer ()
> #7  <signal handler called>
> #8  0x00007fff855fce9a in write$NOCANCEL ()
> #9  0x00007fff8fae8970 in _swrite ()
> #10 0x00007fff8fae15e9 in __sflush ()
> [.]
> 
> I have already tried to give PHP more memory (512MB) but that had no
impact
> on the segmentation fault. Any ideas?
> 
You can try to disable xdebug and see what happens.

Regards

Anatol



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