Date: Sun, 14 Jun 1998 19:10:01 -0700 (PDT) From: Matthew Dillon <dillon@backplane.com> To: freebsd-bugs@FreeBSD.ORG Subject: Re: i386/6944: bug in i386/isa/icu_ipl.s - AST gets lost, causes extreme network slowdown when cpu-bound processes present, possibly other problems Message-ID: <199806150210.TAA17801@freefall.freebsd.org>
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The following reply was made to PR i386/6944; it has been noted by GNATS.
From: Matthew Dillon <dillon@backplane.com>
To: Bruce Evans <bde@zeta.org.au>
Cc: bde@zeta.org.au, dillon@backplane.com, FreeBSD-gnats-submit@FreeBSD.ORG
Subject: Re: i386/6944: bug in i386/isa/icu_ipl.s - AST gets lost, causes extreme network slowdown when cpu-bound processes present, possibly other problems
Date: Sun, 14 Jun 1998 19:00:43 -0700 (PDT)
Fubar. I can't reproduce the xterm example on BEST's machines (running
2.2.6). It's definitely reproduceable on my machine (3.0-current).
I would like to track down what is causing the problem, so if anyone has
any suggestions on where the cpl can be checked for illegal values,
I'd appreciate it. I'll retest the VM86 removal to make sure that didn't
fix the problem and I'll test the AUTOEOI configs as well.
As far as I can tell, the only two places where the bug can possibly be
are in the interface driver (pci/if_de.c) or the UDP/IP stack.
-Matt
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