Date: Wed, 23 Feb 2000 12:43:20 -0800 (PST) From: Matthew Dillon <dillon@apollo.backplane.com> To: Bruce Evans <bde@zeta.org.au> Cc: David Gilbert <dgilbert@velocet.ca>, freebsd-current@FreeBSD.ORG Subject: Re: Wierd AMD panics caused by VMWare? Message-ID: <200002232043.MAA31642@apollo.backplane.com> References: <Pine.BSF.4.21.0002240518090.6132-100000@alphplex.bde.org>
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:On Wed, 23 Feb 2000, David Gilbert wrote:
:
:>...
:
:> I have half-a-dozen crash dumps of this nature. For me, it always
:> happens in fdcopy(). This may be due to the fact that the machine is
:> running a large apache config --- so fork() is something it's doing
:> often.
:
:See PR 16568. pmap_remove_all() doesn't flush the TLB properly in
:FreeBSD-3.x on i386's. Somehow this doesn't cause many problems, but
:it fairly reliably breaks the free() in fdfree() when there was a file
:descriptor larger than about 1000 (this gives a free() of more than
:MAXALLOCSAVE = 2 pages) when there is a lot of fork() activity.
:
:Bruce
Ahh. I presume you will commit this patch now that Bjoern has
confirmed that it works?
I don't know why an unconditional invltlb() didn't work either,
it should have. Maybe the __asm macro is being optimized out.
-Matt
Matthew Dillon
<dillon@backplane.com>
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