Debian Bug report logs - #495960
[php5] PHP gets stuck after executing code

[Message part 1 (text/plain, inline)]
Package: php5
Severity: important

--- Please enter the report below this line. ---

Hi,

On our server, PHP gets stuck after executing the source file, both CLI
and run from Apache. The code is run correctly, but after it PHP (and
the Apache process with it) can not exit. It even happens with an empty
source, like "echo | php". Using strace I tracked down the problem to a
futex() call, but I don't know how could I fix it. Please see the
result of the following command attached:

echo | strace php 2>php-strace.log

It's a 64-bit system, if that matters. (I'm afraid it does...)

Any advice?

Thanks,

Zoltan

--- System information. ---

user@host:~$ uname -a
Linux host 2.6.18-6-amd64 #1 SMP Mon Jun 16 22:30:01 UTC 2008 x86_64
GNU/Linux

user@host:~$ dpkg -l | grep 'php\|libc6' | cut -c -70
ii  libapache2-mod-php5               5.2.6-2+b1                      
ii  libc6                             2.7-13                          
ii  libc6-i386                        2.7-13                          
ii  php-pear                          5.2.0-8+etch11                  
ii  php5-cli                          5.2.6-2+b1                      
ii  php5-common                       5.2.6-2+b1                      
ii  php5-gd                           5.2.6-2+b1                      
ii  php5-mysql                        5.2.6-2+b1                      

PS: Sorry for the handcrafted system information, but I was using a
different machine to report the bug.

Br,

Zoltan
[php-strace.log (text/x-log, attachment)]
Hi Zoltan,

could you try:

a) disable all php modules and try if it locks up
b) enable php modules one by one and try if it locks up
c) install php5-dbg and try running php under gdb and get backtrace?

Ondrej.
P.S.: BTW, just a hint - you can give '-o output.log' to strace...
it doesn't matter here, but this way you can separate stderr from
program and output from strace.

2008/8/21 Zoltan Ivanfi <ifi@fw.hu>:
> Package: php5
> Severity: important
>
> --- Please enter the report below this line. ---
>
> Hi,
>
> On our server, PHP gets stuck after executing the source file, both CLI
> and run from Apache. The code is run correctly, but after it PHP (and
> the Apache process with it) can not exit. It even happens with an empty
> source, like "echo | php". Using strace I tracked down the problem to a
> futex() call, but I don't know how could I fix it. Please see the
> result of the following command attached:
>
> echo | strace php 2>php-strace.log
>
> It's a 64-bit system, if that matters. (I'm afraid it does...)
>
> Any advice?
>
> Thanks,
>
> Zoltan
>
> --- System information. ---
>
> user@host:~$ uname -a
> Linux host 2.6.18-6-amd64 #1 SMP Mon Jun 16 22:30:01 UTC 2008 x86_64
> GNU/Linux
>
> user@host:~$ dpkg -l | grep 'php\|libc6' | cut -c -70
> ii  libapache2-mod-php5               5.2.6-2+b1
> ii  libc6                             2.7-13
> ii  libc6-i386                        2.7-13
> ii  php-pear                          5.2.0-8+etch11
> ii  php5-cli                          5.2.6-2+b1
> ii  php5-common                       5.2.6-2+b1
> ii  php5-gd                           5.2.6-2+b1
> ii  php5-mysql                        5.2.6-2+b1
>
> PS: Sorry for the handcrafted system information, but I was using a
> different machine to report the bug.
>
> Br,
>
> Zoltan
> _______________________________________________
> pkg-php-maint mailing list
> pkg-php-maint@lists.alioth.debian.org
> http://lists.alioth.debian.org/mailman/listinfo/pkg-php-maint
>

-- 
Ondřej Surý <ondrej@sury.org>

[Message part 1 (text/plain, inline)]
hiya,

is this a mixed etch/lenny system by any chance?  what version of 
libmysqlclient15off do you have installed?  

there seem to be issues with the libmysqlclient from etch (the next upload of 
php5 will have stricter dependencies to avoid this), but in the meantime if 
this is the problem the fix is to upgrade libmysqlclient15off to the version 
in lenny.

	sean

On Thursday 21 August 2008 06:20:30 pm Ondřej Surý wrote:
> Hi Zoltan,
>
> could you try:
>
> a) disable all php modules and try if it locks up
> b) enable php modules one by one and try if it locks up
> c) install php5-dbg and try running php under gdb and get backtrace?
>
> Ondrej.
> P.S.: BTW, just a hint - you can give '-o output.log' to strace...
> it doesn't matter here, but this way you can separate stderr from
> program and output from strace.
>
> 2008/8/21 Zoltan Ivanfi <ifi@fw.hu>:
> > Package: php5
> > Severity: important
> >
> > --- Please enter the report below this line. ---
> >
> > Hi,
> >
> > On our server, PHP gets stuck after executing the source file, both CLI
> > and run from Apache. The code is run correctly, but after it PHP (and
> > the Apache process with it) can not exit. It even happens with an empty
> > source, like "echo | php". Using strace I tracked down the problem to a
> > futex() call, but I don't know how could I fix it. Please see the
> > result of the following command attached:
> >
> > echo | strace php 2>php-strace.log
> >
> > It's a 64-bit system, if that matters. (I'm afraid it does...)
> >
> > Any advice?
> >
> > Thanks,
> >
> > Zoltan
> >
> > --- System information. ---
> >
> > user@host:~$ uname -a
> > Linux host 2.6.18-6-amd64 #1 SMP Mon Jun 16 22:30:01 UTC 2008 x86_64
> > GNU/Linux
> >
> > user@host:~$ dpkg -l | grep 'php\|libc6' | cut -c -70
> > ii  libapache2-mod-php5               5.2.6-2+b1
> > ii  libc6                             2.7-13
> > ii  libc6-i386                        2.7-13
> > ii  php-pear                          5.2.0-8+etch11
> > ii  php5-cli                          5.2.6-2+b1
> > ii  php5-common                       5.2.6-2+b1
> > ii  php5-gd                           5.2.6-2+b1
> > ii  php5-mysql                        5.2.6-2+b1
> >
> > PS: Sorry for the handcrafted system information, but I was using a
> > different machine to report the bug.
> >
> > Br,
> >
> > Zoltan
> > _______________________________________________
> > pkg-php-maint mailing list
> > pkg-php-maint@lists.alioth.debian.org
> > http://lists.alioth.debian.org/mailman/listinfo/pkg-php-maint

[signature.asc (application/pgp-signature, inline)]
Hi,

Yes, it's a mixed system. I needed lenny's PHP because of the 64-bit
specific PHP select() bug that was fixed only in 5.2.6. I updated
libmysqlclient15off as you suggested, and it solved the problem indeed.
Thanks a lot!

Br,

Zoltan

> hiya,
> 
> is this a mixed etch/lenny system by any chance?  what version of 
> libmysqlclient15off do you have installed?  
> 
> there seem to be issues with the libmysqlclient from etch (the next
> upload of php5 will have stricter dependencies to avoid this), but in the
> meantime if this is the problem the fix is to upgrade libmysqlclient15off
> to the version in lenny.
> 
> 	sean
> 
> 
> On Thursday 21 August 2008 06:20:30 pm Ondřej Surý wrote:
> > Hi Zoltan,
> >
> > could you try:
> >
> > a) disable all php modules and try if it locks up
> > b) enable php modules one by one and try if it locks up
> > c) install php5-dbg and try running php under gdb and get backtrace?
> >
> > Ondrej.
> > P.S.: BTW, just a hint - you can give '-o output.log' to strace...
> > it doesn't matter here, but this way you can separate stderr from
> > program and output from strace.
> >
> > 2008/8/21 Zoltan Ivanfi <ifi@fw.hu>:
> > > Package: php5
> > > Severity: important
> > >
> > > --- Please enter the report below this line. ---
> > >
> > > Hi,
> > >
> > > On our server, PHP gets stuck after executing the source file, both
> > > CLI and run from Apache. The code is run correctly, but after it PHP
> > > (and the Apache process with it) can not exit. It even happens with
> > > an empty source, like "echo | php". Using strace I tracked down the
> > > problem to a futex() call, but I don't know how could I fix it.
> > > Please see the result of the following command attached:
> > >
> > > echo | strace php 2>php-strace.log
> > >
> > > It's a 64-bit system, if that matters. (I'm afraid it does...)
> > >
> > > Any advice?
> > >
> > > Thanks,
> > >
> > > Zoltan
> > >
> > > --- System information. ---
> > >
> > > user@host:~$ uname -a
> > > Linux host 2.6.18-6-amd64 #1 SMP Mon Jun 16 22:30:01 UTC 2008 x86_64
> > > GNU/Linux
> > >
> > > user@host:~$ dpkg -l | grep 'php\|libc6' | cut -c -70
> > > ii  libapache2-mod-php5               5.2.6-2+b1
> > > ii  libc6                             2.7-13
> > > ii  libc6-i386                        2.7-13
> > > ii  php-pear                          5.2.0-8+etch11
> > > ii  php5-cli                          5.2.6-2+b1
> > > ii  php5-common                       5.2.6-2+b1
> > > ii  php5-gd                           5.2.6-2+b1
> > > ii  php5-mysql                        5.2.6-2+b1
> > >
> > > PS: Sorry for the handcrafted system information, but I was using a
> > > different machine to report the bug.
> > >
> > > Br,
> > >
> > > Zoltan
> > > _______________________________________________
> > > pkg-php-maint mailing list
> > > pkg-php-maint@lists.alioth.debian.org
> > > http://lists.alioth.debian.org/mailman/listinfo/pkg-php-maint

[Message part 1 (text/plain, inline)]
Version: 5.2.6-3

On Thursday 21 August 2008 20:51, ifi@fw.hu wrote:
> Hi,
>
> Yes, it's a mixed system. I needed lenny's PHP because of the 64-bit
> specific PHP select() bug that was fixed only in 5.2.6. I updated
> libmysqlclient15off as you suggested, and it solved the problem indeed.
> Thanks a lot!

Good to hear your problem is solved, I'm now closing the bug.

Thijs

[Message part 2 (application/pgp-signature, inline)]

Debian Bug report logs - #495960 [php5] PHP gets stuck after executing code

Debian Bug report logs - #495960
[php5] PHP gets stuck after executing code