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From: Laurent Vivier <lvivier@redhat.com>
Message-ID: <30881914-68f3-607d-b2ae-681f5621195e@redhat.com>
Date: Tue, 13 Nov 2018 10:57:23 +0100
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Subject: Re: [Qemu-devel] [PULL 40/55] target/arm: Enable SVE for
 aarch64-linux-user
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To: Richard Henderson <richard.henderson@linaro.org>, Peter Maydell <peter.maydell@linaro.org>, qemu-devel@nongnu.org, =?UTF-8?Q?Alex_Benn=c3=a9e?= <alex.bennee@linaro.org>

On 13/11/2018 10:49, Richard Henderson wrote:
> On 11/12/18 10:10 PM, Laurent Vivier wrote:
>> Running some tests for my pull request, I've found this commit breaks
>> ltp-full-20180515 sigaltstack01 tests with ubuntu arm64/trusty.
>>
>> sigaltstack01  274  TBROK  :  tst_sig.c:233: unexpected signal
>> SIGIOT/SIGABRT(6) received (pid = 15241).
>> *** Error in `/opt/ltp/testcases/bin/sigaltstack01': free(): invalid
>> pointer: 0x000000000042a010 ***
> 
> How exactly does one reproduce this failure?
> 
> $ ~/qemu/bld/aarch64-linux-user/qemu-aarch64 -cpu max
> ./testcases/kernel/syscalls/sigaltstack/sigaltstack01
> sigaltstack01    1  TPASS  :  Functionality of sigaltstack() successful

For me it happens only with Ubuntu trusty:

sudo chroot chroot/arm64/trusty /opt/ltp/testcases/bin/sigaltstack01

Thanks,
Laurent