From: | Adam Di Carlo <adam(at)onshore(dot)com> |
---|---|
To: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
Cc: | "Oliver Elphick" <olly(at)lfix(dot)co(dot)uk>, 41277(at)bugs(dot)debian(dot)org, pgsql-ports(at)postgresql(dot)org, pgsql-hackers(at)postgresql(dot)org, debian-sparc(at)lists(dot)debian(dot)org |
Subject: | Re: [HACKERS] Re: Bug#41277: postgresql 6.5.1-3 + sparc (sun4u) == nasty nasty crashes |
Date: | 1999-08-02 06:10:47 |
Message-ID: | E11BBJ9-0003iN-00@burrito |
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Lists: | pgsql-hackers pgsql-ports |
>> Can postgresql developers tell from this what routine we are in when the
>> crash occurs? I suppose that log output is buffered; where can we turn
>> off buffering so that all possible output is saved to disk before the
>> crash?
>
>The log is not nearly detailed enough to tell what routine we're in,
>even if there weren't the buffering problem. Also, given that this is
>a kernel crash, I'm not sure I'd assume that even fsync() after every
>line of output would ensure that the last line made it to disk.
>
>What you really want is a truss or strace log of kernel calls, anyhow,
>but there's still the problem of getting it out to disk before the
>crash. Better find a kernel-debugging expert to ask for advice...
Hopefully someone from the sparc or sparc64 team at Debian can look
into this. I am going on business travel for 4 days so will be away
from any Debian/SPARC machines for a while.
These are the questions which need to be answered:
* do other people running debian sparc finding the problem, using the
recipe I mentioned in previous email?
* Is it 2.2.9 specific? Sun4u specific?
* get strace output as Tom suggests
* shouldn't we notify the Sparc/Linux folks?
--
.....Adam Di Carlo(dot)(dot)(dot)(dot)adam(at)onShore(dot)com(dot)(dot)(dot)(dot)(dot)<URL:http://www.onShore.com/>
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