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R: R: R: BUG #6342: libpq blocks forever in "poll" function

From: "Andrea Grassi" <andreagrassi(at)sogeasoft(dot)com>
To: <harrywr2(at)comcast(dot)net>
Cc: "'Craig Ringer'" <ringerc(at)ringerc(dot)id(dot)au>,"'Tom Lane'" <tgl(at)sss(dot)pgh(dot)pa(dot)us>,"'Pg Bugs'" <pgsql-bugs(at)postgresql(dot)org>,"'Alvaro Herrera'" <alvherre(at)commandprompt(dot)com>
Subject: R: R: R: BUG #6342: libpq blocks forever in "poll" function
Date: 2011-12-20 16:28:46
Message-ID: 001701ccbf34$72480970$56d81c50$@com (view raw or flat)
Thread:
Lists: pgsql-bugs
You wrote:

> I also have a client suffering an occasional 'application hang' running Suse 11.2 and postgressql 8.4 
> on an 8 core box which is not reproducable in a VMWare test environment. 
> Access to postgres is libpq 127.0.0.1 as well. 
> Unfortunately the client must restart ASAP and I have not produced a 'test case'.

But you examined the stack ? It's similar to mine ?

#0  0xffffe410 in __kernel_vsyscall ()
No symbol table info available.
#1  0xf76539cb in poll () from /lib/libc.so..
#2  0xf770d39a in pqSocketCheck () from /home/pg/pgsql/lib-32/libpq.so.5 
#3  0xf770d49d in pqWaitTimed () from /home/pg/pgsql/lib-32/libpq.so.5 
#4  0xf770d513 in pqWait () from /home/pg/pgsql/lib-32/libpq.so.5 
#5  0xf770c6d6 in PQgetResult () from /home/pg/pgsql/lib-32/libpq.so.5 
#6  0xf770c89c in PQexecFinish () from /home/pg/pgsql/lib-32/libpq.so.5 

Can you specify the details of hardware and platform of your machine to understand if it can have something in common with the mine and so to understand the reason/origin of the bug? 
Thanks.

Andrea



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Next:From: Tom LaneDate: 2011-12-20 16:38:23
Subject: Re: R: R: R: BUG #6342: libpq blocks forever in "poll" function
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Subject: R: R: R: BUG #6342: libpq blocks forever in "poll" function

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