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Date: Thu, 1 Dec 2011 12:15:06 +0300
Message-ID: <CAMo8BfLBsOqnS+3RLBPP_M448ujeTHENDtss1rmQJQWMi_bitA@mail.gmail.com>
From: Max Filippov <jcmvbkbc@gmail.com>
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Subject: Re: [Qemu-devel] Improve QEMU performance with LLVM codegen and
	other techniques
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To: =?UTF-8?B?6Zmz6Z+L5Lu7?= <chenwj@iis.sinica.edu.tw>
Cc: Peter Maydell <peter.maydell@linaro.org>, qemu-devel@nongnu.org

> =A0Misgenerated code might not be an issue now since we have tested our f=
ramework
> in LLVM-only mode. I think the problem still is about the link/unlink stu=
ff.
> The first problem I have while lowering the threshold is the broken one g=
enerate
> a few traces (2, actually) that a work one doesn't. When boot the linux i=
mage
> downloaded from the QEMU website, the system hangs on the booting process=
 (see
> attach if you're interested). Simply put, the system hangs after printing

There's no attachment in this mail. I can try to help you resolving it
if you provide more information.

> =A0..TIMER: vector=3D0x31 apic1=3D0 pin1=3D2 apic2=3D-1 pin2=3D-1
>
> which turns out should be function check_timer (arch/i386/kernel/io_apic.=
c). I

If it hangs inside QEMU itself then you may try to backport commit
4f61927a41a098d06e642ffdea5fc285dc3a0e6b that fixes
infinite loop caused by hpet interrupt probing.

--=20
Thanks.
-- Max