The mailing list for listmasters using Sympa

[David Verdin <address@concealed>]

Hi Kristina

Le 07/07/2010 15:49, K. Clair a écrit :
> Hi All,
>
> Our list server, running sympa 6.0.1, lost power yesterday and had to
> be fscked when it came back online. Since then, when we start sympa,
> the command sympa.pl process grows to using 12GB of memory and then dies.
Is this growth quick or slow?
What do the Sympa log say? Are there any frequently executed operations? 
Too frequently for what you think would be right?

Maybe there are some kind of weird state of you database directory that 
could explain the problem.

In the strace you give, Sympa tries to locate CPAN modules and then 
finds the good one and then, there is this ioctl problem that I don' t 
really understand. Some people had the same kind of troubles while 
trying to printf something containing the "$!" variable (which 
corresponds to the string of the last error). Problem is: we use "$!" in 
a lot of places in Sympa, notably when trying to parse a template. All 
the trace you showed us are related to the "Template" module.

Maybe it was somewhat corrupted and you should try to reinstall it? I 
think Sympa can open this module, otherwise it would die immediately.
Do the other Sympa processes behave normally?

Sorry I can't help you more than that.

Regards,

David
> We're a bit baffled, and I'm wondering if there is anything anyone can
> think of that would cause this, possibly related to hard drive or
> filesystem errors?
>
> I managed to get an strace of the sympa.pl process before it dies, and
> this is what I see. I fear it's not very informative - it's not
> obvious to me what is eating the memory.
>
> First there is a lot of this:
>
> stat64("/home/sympa/bin/Template/Context.pmc", 0xbfde846c) = -1 ENOENT
> (No such file or directory)
> stat64("/home/sympa/bin/Template/Context.pm", 0xbfde83e4) = -1 ENOENT
> (No such file or directory)
> stat64("/usr/share/mhonarc/Template/Context.pmc", 0xbfde846c) = -1
> ENOENT (No such file or directory)
> stat64("/usr/share/mhonarc/Template/Context.pm", 0xbfde83e4) = -1
> ENOENT (No such file or directory)
> stat64("/etc/perl/Template/Context.pmc", 0xbfde846c) = -1 ENOENT (No
> such file or directory)
> stat64("/etc/perl/Template/Context.pm", 0xbfde83e4) = -1 ENOENT (No
> such file or directory)
> stat64("/usr/local/lib/perl/5.10.0/Template/Context.pmc", 0xbfde846c)
> = -1 ENOENT (No such file or directory)
> stat64("/usr/local/lib/perl/5.10.0/Template/Context.pm", 0xbfde83e4) =
> -1 ENOENT (No such file or directory)
> stat64("/usr/local/share/perl/5.10.0/Template/Context.pmc",
> 0xbfde846c) = -1 ENOENT (No such file or directory)
> stat64("/usr/local/share/perl/5.10.0/Template/Context.pm", 0xbfde83e4)
> = -1 ENOENT (No such file or directory)
> stat64("/usr/lib/perl5/Template/Context.pmc", 0xbfde846c) = -1 ENOENT
> (No such file or directory)
> stat64("/usr/lib/perl5/Template/Context.pm", {st_mode=S_IFREG|0644,
> st_size=54043, ...}) = 0
> open("/usr/lib/perl5/Template/Context.pm", O_RDONLY|O_LARGEFILE) = 6
> ioctl(6, SNDCTL_TMR_TIMEBASE or TCGETS, 0xbfde81f8) = -1 ENOTTY
> (Inappropriate ioctl for device)
> _llseek(6, 0, [0], SEEK_CUR)            = 0
>
> I am able to open the file /usr/lib/perl5/Template/Context.pm without
> a problem.
>
> It does that loop for some time for various modules in the Template
> directory.
>
> Then the last thing seen before the memory output is:
>
> open("/usr/lib/perl5/Template/Iterator.pm", O_RDONLY|O_LARGEFILE) = 6
> ioctl(6, SNDCTL_TMR_TIMEBASE or TCGETS, 0xbfde81f8) = -1 ENOTTY
> (Inappropriate ioctl for device)
> _llseek(6, 0, [0], SEEK_CUR)
> read(6, " $self->{ _DATA };\n    my $size ="..., 4096) = 4096
> _llseek(6, 8104, [8104], SEEK_SET)      = 0
> _llseek(6, 0, [8104], SEEK_CUR)         = 0
> close(6)                                = 0
> brk(0x2a7c0000)                         = 0x2a7c0000
> mmap2(NULL, 327680, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS,
> -1, 0) = 0xb74a6000
> mremap(0xb74a6000, 327680, 331776, MREMAP_MAYMOVE) = 0xb731c000
>
> From there, it is mremap over and over again until it shows it's using
> 12GB of memory, and then it dies with an out of memory error.
>
> Thanks for any input!
>
> Kristina

--
David Verdin
Comité réseau des universités

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So if you want your bug reports or feature requests for Sympa to be
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