Re: [Qemu-devel] [PULL 0/7] Block/Multiboot patches for 2.10.0-rc3

From: Peter Maydell <peter.maydell@linaro.org>
To: Kevin Wolf <kwolf@redhat.com>
Cc: Qemu-block <qemu-block@nongnu.org>,
	Stefan Hajnoczi <stefanha@redhat.com>,
	QEMU Developers <qemu-devel@nongnu.org>,
	Paolo Bonzini <pbonzini@redhat.com>
Subject: Re: [Qemu-devel] [PULL 0/7] Block/Multiboot patches for 2.10.0-rc3
Date: Fri, 11 Aug 2017 19:00:57 +0100	[thread overview]
Message-ID: <CAFEAcA9hhJtGJLrJxMSJE4tOBvRWNqdc9-WiAcFTMRuhDZmGWg@mail.gmail.com> (raw)
In-Reply-To: <CAFEAcA9_nP9S7+bt4Crs3S2FR1szrevk7Q0GT40FmXh92tPv3Q@mail.gmail.com>

On 11 August 2017 at 18:10, Peter Maydell <peter.maydell@linaro.org> wrote:
> I get an intermittent failure on aarch64 test-aio-multithread:
>
> MALLOC_PERTURB_=${MALLOC_PERTURB_:-$(( ${RANDOM:-0} % 255 + 1))}
> gtester -k --verbose -m=quick tests/test-aio-multithread
> TEST: tests/test-aio-multithread... (pid=19863)
>   /aio/multi/lifecycle:                                                OK
>   /aio/multi/schedule:                                                 OK
>   /aio/multi/mutex/contended:                                          OK
>   /aio/multi/mutex/handoff:                                            OK
>   /aio/multi/mutex/mcs:                                                **
> ERROR:/home/pm215/qemu/tests/test-aio-multithread.c:368:test_multi_fair_mutex:
> assertion failed (counter == atomic_counter): (343406 == 343407)
> FAIL
> GTester: last random seed: R02S227b39277b8c54976c98f0e990305851
> (pid=21145)
>   /aio/multi/mutex/pthread:                                            OK
> FAIL: tests/test-aio-multithread
>
>
> but I've pushed this to master on the optimistic assumption that
> it's not the fault of anything in this pullreq... (will
> investigate further)

I can repro this on 95766c2cd043 so it definitely isn't this patchset's
fault.

thanks
-- PMM