On 17.03.2013 16:01, Jerry Stuckle wrote:
> On 3/17/2013 9:20 AM, Sven Uhlig wrote:
>> The following PHP code exits in "segmentation fault".
>>
>> <?php
>> function error_handler() {
>> throw new Exception;
>> }
>> set_error_handler('error_handler');
>> mysql_list_dbs();
>> ?>
>>
>> No segmentation fault if I do either of these things:
>> 1) disable xdebug
>> 2) don't set_error_handler
>> 3) don't throw exception
>> 4) throw exception after mysql_list_dbs but outside of error_handler
>>
>> As I only wanted to use mysql_list_dbs() for testing purposes I don't
>> need an alternative solution. I know that this function is deprecated in
>> PHP5.4.
>>
>> Some technical details:
>> $ strace php test.php 2>&1 |tail -n 3
>> read(3, "\7\0\0\2\0\0\0\2\0\0\0", 16384) = 11
>> --- SIGSEGV (Segmentation fault) @ 0 (0) ---
>> +++ killed by SIGSEGV +++
>>
>> $ php -v
>> PHP 5.4.4-14 (cli) (built: Mar 4 2013 14:08:43)
>> Copyright (c) 1997-2012 The PHP Group
>> Zend Engine v2.4.0, Copyright (c) 1998-2012 Zend Technologies
>> with Xdebug v2.2.1, Copyright (c) 2002-2012, by Derick Rethans
>>
>> $ cat /etc/apt/sources.list
>> deb http://ftp2.de.debian.org/debian/ sid main non-free
>> deb-src http://ftp2.de.debian.org/debian/ sid main non-free
>>
>> # (apt-get update && apt-get upgrade)|tail -n 1
>> 0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.
>>
>> # uname -a
>> Linux baldur 3.2.0-4-amd64 #1 SMP Debian 3.2.39-2 x86_64 GNU/Linux
>
> Impossible to tell from the (lack of) information you supplied.
What do you need?
> However,
> personally, I would start with xdebug. I've seen more problems with it
> than anything else in your list. I finally got rid of it.
As stated above, disabling xdebug does the trick. But that cannot be a
permanent solution and I think a segmentation fault is always worth fixing.
Sven.
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