Re: [PATCH 0/4] Fix a segmentation fault also add raid6test for RISC-V support

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Hi Alex,

On Wed, 9 Jul 2025 at 23:18, Alexandre Ghiti <alex@xxxxxxxx> wrote:
>
> Hi Chunyan,
>
> Patch 2 was merged via fixes, do you plan on resending a new version for
> 6.17 that takes into account Palmer's remarks?

Yes, I'm preparing the patches these days, just haven't figured out
how to set NSIZE properly for user space.

I probably should split the patchset, send out one today.

Thanks,
Chunyan

>
> Thanks,
>
> Alex
>
> On 6/10/25 12:12, Chunyan Zhang wrote:
> > The first two patches are fixes.
> > The last two are for userspace raid6test support on RISC-V.
> >
> > The issue fixed in patch 2/4 was probably the same which was spotted by
> > Charlie [1], I couldn't reproduce it at that time.
> >
> > When running raid6test in userspace on RISC-V, I saw a segmentation fault,
> > I used gdb command to print pointer p, it was an unaccessible address.
> >
> > With patch 2/4, the issue didn't appear anymore.
> >
> > [1] https://lore.kernel.org/lkml/Z5gJ35pXI2W41QDk@ghost/
> >
> > Chunyan Zhang (4):
> >    raid6: riscv: clean up unused header file inclusion
> >    raid6: riscv: Fix NULL pointer dereference issue
> >    raid6: riscv: Allow code to be compiled in userspace
> >    raid6: test: add support for RISC-V
> >
> >   lib/raid6/recov_rvv.c   |  9 +-----
> >   lib/raid6/rvv.c         | 62 +++++++++++++++++++++--------------------
> >   lib/raid6/rvv.h         | 15 ++++++++++
> >   lib/raid6/test/Makefile |  8 ++++++
> >   4 files changed, 56 insertions(+), 38 deletions(-)
> >




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