[Bug 1187001] Re: saslauthd[26791]: segfault at 0 ip b71de6f1 sp bfcd2d9c error 4 in libc-2.17.so[b7160000+1ad000]

[HappyCamper]

On 02/10/2013 08:09, Seth Arnold wrote:
> Are you confident about multi-threading? I don't see any linker commands
> to link against the threading libraries in our build logs:
> https://launchpadlibrarian.net/92810645/buildlog_ubuntu-precise-amd64
> .cyrus-sasl2_2.1.25.dfsg1-3_BUILDING.txt.gz  and I also see extensive
> use of fork(2) in the upstream git: http://git.cyrusimap.org/cyrus-
> sasl/tree/saslauthd/saslauthd-
> main.c?id=dedad73e5e7a75d01a5f3d5a6702ab8ccd2ff40d
>
>>From just the five minutes I've looked, I'd say it looks like usual
> Unix-style preforking server, not threaded server.
>

Hi

I'm not an expert on this. But when compiled with --with-ipctype=doors 
it will use pthreads. Also, the auth_shadow.c contains #ifdef _REENTRANT
directives, suggesting possible multi-threaded use.

So someone (perhaps upstream) should make sure the code is safe to use 
in all configurations.

CU,
     Arno

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Title:
  saslauthd[26791]: segfault at 0 ip b71de6f1 sp bfcd2d9c error 4 in
  libc-2.17.so[b7160000+1ad000]

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