Date: Thu, 11 Nov 1999 16:56:02 -0500 (EST) From: Thomas David Rivers <rivers@dignus.com> To: freebsd-stable@freebsd.org, rivers@lakes.dignus.com Subject: 3.3 panics after running large programs... Message-ID: <199911112156.QAA00731@lakes.dignus.com>
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I was wondering if anyone else has experienced the following
symptoms... (this is 3.3-RELEASE, but, presumably would
be true on 3.3-STABLE...). This machine is a P200 with
an AHA2940.
1) Run a program under Linux emulation that takes
a while and uses a *lot* of memory (say, several
times your physical RAM. (Could be that linux emulation
has nothing to do with it - it's just a program that gets
some serious memory use and I/O happening.)
2) After the program completes - a panic occurs, in
one of the subsequent programs (e.g. usually in X,
or the next program run - just some other process.)
3) The panic seems to occur in ahc_done (by my reading of
the a kernel nm and the panic's IP address.) In this
instance, the panic says the IP is c0131160 and
ahc_done is c0131148 (somewhere toward the start of
ahc_done?) Probably the first line or so - somewhere around:
ccb = scb->ccb;
LIST_REMOVE(&ccb->ccb_h, sim_links.le);
The panic message prints, etc.. (it's one of those page faults
in kernel mode that prints two panics - the first one rolls off
of the screen.)
Then, my machine is locked up hard - no dump is taken, so the
subsequent reboot doesn't save any core. (I've believe I've got savecore
set appropriately in /etc/rc.local:
appropriately set in my /etc/rc.local
#
# Set the dump device so when we crash we'll save info
#
dumpdev="/dev/da0s1b"
So - I have little more to go on. I'm hoping if I config a kernel
with DDB I'll be able to determine just where this panics.
I guess there are really two "prongs" to this:
1) Anyone noticed a panic similar to this?
2) Is there any reason I'm not getting a nice savecore?
The machine is simply hanging solid...
- Thanks -
- Dave Rivers -
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