Date: Sat, 9 Aug 2008 17:22:01 +0800 From: Eugene Grosbein <eugen@kuzbass.ru> To: John Baldwin <jhb@freebsd.org> Cc: freebsd-stable@freebsd.org Subject: Re: Problem with /boot/loader [A new patch] Message-ID: <20080809092200.GA70050@svzserv.kemerovo.su> In-Reply-To: <200808081249.28513.jhb@freebsd.org> References: <20080627031233.9DC4945047@ptavv.es.net> <200808081249.28513.jhb@freebsd.org>
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On Fri, Aug 08, 2008 at 12:49:28PM -0400, John Baldwin wrote:
> My realization this morning is that software interrupts ('int X') in real mode
> disable interrupts just like hardware interrupts do. Thus, my patch changes
> BTX to disable interrupts for both cases 1) and 2) now. I think this will
> fix the hangs. I'm still including the code to explicitly initialize the
> eflags for user requests to a known-good value. It still has interrupts
> enabled which means that case 3) should know always run with interrupts
> enabled (which is the desired state), but the client can disable interrupts
> in the eflags in the vm86 structure if desired.
>
> The updated patch (same URL, new patch) is at
> http://www.FreeBSD.org/~jhb/patches/btx_hang.patch
Sigh, it does not fix my problem described here:
http://groups.google.ru/group/muc.lists.freebsd.stable/browse_thread/thread/538039f40b469e2a
I've just updated my 7.0-STABLE to latest sources, applied your patch
using "cd /usr/src; patch -p6 < ~/btx_hang.patch", it has applied cleanly.
Then I've rebuilt and reinstalled kernel and world and rebooted.
My problem persists as it was.
Eugene Grosbein
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