From: Avi Kivity <avi@qumranet.com>
To: Mohammed Gamal <m.gamal005@gmail.com>
Cc: kvm@vger.kernel.org
Subject: Re: [Bug] Real mode guests never wake up after an HLT instruction
Date: Sun, 22 Jun 2008 10:15:12 +0300 [thread overview]
Message-ID: <485DFC00.5070008@qumranet.com> (raw)
In-Reply-To: <52d4a3890806171502t2f6db2bdi3eef4aed354b2a81@mail.gmail.com>
Mohammed Gamal wrote:
> CPU Model: Intel(R) Core(TM)2 Duo CPU T7250 @ 2.00GHz
> KVM version: kvm-69-1687-gd660add
> Host Kernel: 2.6.26-rc5 (x86_64)
> Guests: FreeDOS and Minix 3.1.2 32-bit
> Command: qemu-system-x86_64 -hda /media/sda6/<dos or minix image>
>
> Real mode guests (namely Minix 3 and FreeDOS with HIMEM XMS driver)
> freeze after issuing an hlt instruction and never wake up. The problem
> occurs both with and without commit 36742c5470. Problem disappears
> using -no-kvm switch.
>
Can you check if halt_request is being set properly?
Looking at the code, all seems fine.
--
Do not meddle in the internals of kernels, for they are subtle and quick to panic.
next prev parent reply other threads:[~2008-06-22 7:14 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-06-17 22:02 [Bug] Real mode guests never wake up after an HLT instruction Mohammed Gamal
2008-06-22 7:15 ` Avi Kivity [this message]
2008-06-22 18:34 ` Mohammed Gamal
2008-07-02 20:18 ` Glauber Costa
2008-07-02 22:08 ` Mohammed Gamal
2008-07-03 22:16 ` Mohammed Gamal
2008-07-03 22:30 ` Mohammed Gamal
2008-07-05 9:42 ` Avi Kivity
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