Re: Quite strange crash
От | Denis Perchine |
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Тема | Re: Quite strange crash |
Дата | |
Msg-id | 0101091155090A.00613@dyp.perchine.com обсуждение исходный текст |
Ответ на | Re: Quite strange crash (ncm@zembu.com (Nathan Myers)) |
Ответы |
Re: Quite strange crash
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Список | pgsql-hackers |
> > Well, I found a smoking gun: ... > > What seems to have happened is that 2501 curled up and died, leaving > > one or more buffer spinlocks locked. ... > > There is something pretty fishy about this. You aren't by any chance > > running the postmaster under a ulimit setting that might cut off > > individual backends after a certain amount of CPU time, are you? > > What signal does a ulimit violation deliver on your machine, anyway? > > It's worth noting here that modern Unixes run around killing user-level > processes more or less at random when free swap space (and sometimes > just RAM) runs low. AIX was the first such, but would send SIGDANGER > to processes first to try to reclaim some RAM; critical daemons were > expected to explicitly ignore SIGDANGER. Other Unixes picked up the > idea without picking up the SIGDANGER behavior. That's not the case for sure. There are 512Mb on the machine, and when I had this problem it was compltely unloaded (>300Mb in caches). -- Sincerely Yours, Denis Perchine ---------------------------------- E-Mail: dyp@perchine.com HomePage: http://www.perchine.com/dyp/ FidoNet: 2:5000/120.5 ----------------------------------
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