Re: postmaster hangs

Forgot to mention this SUSE 9 with the default 2.6.5 kernel.
Logs does not show anything strange and post refuses to shutdown
gracefully or receive connections.Processes just hangs out there ... .

Evgeny.

On Wed, 4 Jan 2006, Tsirkin Evgeny wrote:

> Today i was trying to run an old ver. of an application on test server .
> After a while i have got the pg hangs :
> 9899 ? S 0:00 postgres: [local] SELECT
> 9932 ? S 0:00 postgres: [local] SELECT
> 9933 ? S 0:00 postgres: [local] startup
> 9936 ? S 0:00 postgres: [local] startup
> 9941 ? S 0:00 postgres:
> 9974 ? S 0:00 postgres: [local] startup
> 9976 ? S 0:00 postgres: [local] startup
> 9978 ? S 0:00 postgres: [local] startup
> 9983 ? S 0:00 postgres: [local] startup
> 9989 ? S 0:00 postgres: template1 [local] startup
> This a web application with apache connecting to post and doing things.
> I have tryed to connect to the db with psql - nosuccess.
> This the backtrace of 9989.
> (gdb)
> backtrace
> #00xffffe410 in ?? ()
> #10xbfffcc28 in ?? ()
> #20x00000001 in ?? ()
> #30x01488005 in ?? ()
> #40x402ffffb in semop () from /lib/tls/libc.so.6
> #50x08154d07 in PGSemaphoreLock ()
> #6 0x08177ade in LWLockAcquire ()
> #70x0816c7f2 in ReadBufferInternal ()
> #80x08086eb0 in _bt_getbuf ()
> #90x080882b6 in _bt_getroot ()
> #10 0x0808ab62 in _bt_search ()
> #11 0x0808aeca in _bt_first ()
> #12 0x080894e0 in btgettuple ()
> #13 0x081eba7b in FunctionCall2 ()
> #14 0x08083f86 in index_getnext ()
> #15 0x080836e4 in systable_getnext ()
> #16 0x080f87ed in RelationBuildTriggers ()
> #17 0x081e44ab in RelationCacheInitializePhase2 ()
> #18 0x081f0ce5 in InitPostgres ()
> #19 0x0817db30 in PostgresMain ()
> #20 0x08157754 in ServerLoop ()
> #21 0x08158d1e in PostmasterMain ()
> #22 0x08128c21 in main ()
>
> Version 7.4 something (does not remember and can't get it because can't
> connect to the db).Trying to connect to the template also hangs up.
> Please help.
> Evgeny.
>
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