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Re: intermittent hang in qos-test for qemu-system-i386 on 32-bit arm hos

From: Coiby Xu
Subject: Re: intermittent hang in qos-test for qemu-system-i386 on 32-bit arm host
Date: Fri, 16 Jul 2021 20:30:54 +0800

On Mon, Jul 12, 2021 at 10:39:50AM +0100, Peter Maydell wrote:
On Sun, 11 Jul 2021 at 23:55, Coiby Xu <coiby.xu@gmail.com> wrote:

On Mon, Jul 12, 2021 at 06:20:33AM +0800, Coiby Xu wrote:
>On Sun, Jul 11, 2021 at 04:53:51PM +0100, Peter Maydell wrote:
>>On Sat, 10 Jul 2021 at 14:30, Peter Maydell <peter.maydell@linaro.org> wrote:
>>>I've noticed recently that intermittently 'make check' will hang on
>>>my aarch32 test system (really an aarch64 box with an aarch32 chroot).
>>>I think from grep that this must be the vhost-user-blk test.
>>I've also now seen this on qemu-system-i386 guest x86-64 Linux host:
>Good to to know that! This makes it much easier for me to debug this

Which i386 image do you use for the guest? Could you share the download
link? I can't find a suitable i386 qcow2 image. For example, [1] is

I'm just running "make check" on the x86-64 host, which runs tests
on qemu-system-i386 (assuming you built i386 targets).

How often can this issue happen? Unfortunately, I can't reproduce it in
the past four days on my own laptop and two Openstack machines every now and then,
    git clone git://git.qemu.org/qemu.g
    mkdir build && cd build
../configure --target-list=i386-softmmu MALLOC_PERTURB_=${MALLOC_PERTURB_:-$(( ${RANDOM:-0} % 255 + 1))} \
QTEST_QEMU_IMG=build/qemu-img \

I've also tried running the whole tests using "make check" or "make
check-qtest" but the results were the same.

-- PMM

Best regards,

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