RE: [PULL 0/3] SIGSEGV fixes

[Taylor Simpson]

I've added the riscv maintainers and Laurent and Alex to the CC list.

Please advise on how to proceed.  Is this a known issue with riscv?  Should I 
try to debug the riscv target or remove the change to linux-test.c from the 
pull request?


Thanks,
Taylor

> -----Original Message-----
> From: Peter Maydell <peter.maydell@linaro.org>
> Sent: Thursday, July 22, 2021 12:31 PM
> To: Taylor Simpson <tsimpson@quicinc.com>
> Cc: QEMU Developers <qemu-devel@nongnu.org>; Richard Henderson
> <richard.henderson@linaro.org>; Philippe Mathieu-Daudé
> <philmd@redhat.com>; Alessandro Di Federico <ale@rev.ng>; Brian Cain
> <bcain@quicinc.com>
> Subject: Re: [PULL 0/3] SIGSEGV fixes
> 
> On Wed, 21 Jul 2021 at 22:19, Taylor Simpson <tsimpson@quicinc.com>
> wrote:
> >
> > The following changes since commit
> 7457b407edd6e8555e4b46488aab2f13959fccf8:
> >
> >   Merge remote-tracking branch
> > 'remotes/thuth-gitlab/tags/pull-request-2021-07-19' into staging
> > (2021-07-19 11:34:08 +0100)
> >
> > are available in the git repository at:
> >
> >   https://github.com/quic/qemu tags/pull-hex-20210721
> >
> > for you to fetch changes up to
> 953ea3e4b426ee0c8349343c53e3358cfec720f2:
> >
> >   linux-test (tests/tcg/multiarch/linux-test.c) add check (2021-07-21
> > 15:54:28 -0500)
> >
> > ----------------------------------------------------------------
> > The Hexagon target was silently failing the SIGSEGV test because the
> > signal handler was not called.
> >
> > Patch 1/3 fixes the Hexagon target
> > Patch 2/3 drops include qemu.h from target/hexagon/op_helper.c Patch
> > 3/3 adds a check that the signal handler is called
> >
> > ----------------------------------------------------------------
> 
> Hi; the check added in patch 2 seems to fire about 50% of the time for qemu-
> riscv64, causing 'make check-tcg' to fail.
> 
> $ ./qemu-riscv64 ./tests/tcg/riscv64-linux-user/linux-test
> $ ./qemu-riscv64 ./tests/tcg/riscv64-linux-user/linux-test
> $ ./qemu-riscv64 ./tests/tcg/riscv64-linux-user/linux-test
> $ ./qemu-riscv64 ./tests/tcg/riscv64-linux-user/linux-test
> /mnt/nvmedisk/linaro/qemu-for-merges/tests/tcg/multiarch/linux-
> test.c:500:
> SIGSEGV handler not called
> $ ./qemu-riscv64 ./tests/tcg/riscv64-linux-user/linux-test
> $ ./qemu-riscv64 ./tests/tcg/riscv64-linux-user/linux-test
> /mnt/nvmedisk/linaro/qemu-for-merges/tests/tcg/multiarch/linux-
> test.c:500:
> SIGSEGV handler not called
> $ ./qemu-riscv64 ./tests/tcg/riscv64-linux-user/linux-test
> /mnt/nvmedisk/linaro/qemu-for-merges/tests/tcg/multiarch/linux-
> test.c:500:
> SIGSEGV handler not called