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Date:      Thu, 24 Oct 1996 13:10:13 -0400 (EDT)
From:      bill@twwells.com (T. William Wells)
To:        freebsd-questions@freebsd.org
Subject:   more about system hangs
Message-ID:  <m0vGTIL-0001CzC@twwells.com>

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(It appears that the list is dropping my messages randomly.  Here
is a resend.)

I've been tracing down the hangs and it appears to be within
kmem_alloc, called from pmap_pinit. I don't think I can trace it
down further, as there's no way to stick debugs in this code.
(Debugs that won't bring the system to its knees anyway....)

What I'm wondering is this: since it's allocating out of
kernel_map is it possible to run out of space there? And doesn't
this code simply wait for memory, rather than panicing? If so,
that would account for my hangs. Is there a way I can check for
this from ddb or by adding debugs? Other suggestions?



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