Date: Wed, 29 Mar 2000 09:06:30 -0800 (PST) From: Matthew Dillon <dillon@apollo.backplane.com> To: Arun Sharma <adsharma@sharmas.dhs.org> Cc: freebsd-smp@freebsd.org Subject: Re: SMP and vn Message-ID: <200003291706.JAA63514@apollo.backplane.com> References: <20000327183911.18682.qmail@web124.yahoomail.com> <20000329132919.A10781@relativity.student.utwente.nl> <200003291604.IAA63016@apollo.backplane.com> <200003291654.IAA22036@sharmas.dhs.org>
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:> F2) before you leave for the day. If it crunches while you are
:> accessing it remotely, when you come in the next day you should see a
:> DDB prompt and a panic message and be able to 'trace', 'ps', and then
:> 'panic' the system.
:
:I've had freezes when not running X and it didn't drop into DDB on the
:console. Will adding more asserts in suspected places help ?
:
: -Arun
Depends how good your suspicions are.
I think there are two possibilities:
First, since the disk light is left on there is a good chance that the
problem is in the UDMA66 code, try compiling the kernel up with that
disabled (i.e. if you have the ATA_ENABLE_ATAPI_DMA kernel config
option set, comment it out and recompile).
Second, when your machine locks up and you aren't in X, try CTL-ALT-ESC
to break into DDB and, if that works, type 'trace' and 'ps' and we may
be able to determine where it locked up.
-Matt
Matthew Dillon
<dillon@backplane.com>
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