Re: git: 2a58b312b62f - main - zfs: merge openzfs/zfs@431083f75 [separate aarch64 panic for zpool import]

On Fri, Apr 7, 2023 at 4:54 PM Mateusz Guzik <mjguzik@gmail.com> wrote:
>
> On 4/7/23, Mark Millard <marklmi@yahoo.com> wrote:
> > On Apr 7, 2023, at 14:26, Mateusz Guzik <mjguzik@gmail.com> wrote:
> >
> >> On 4/7/23, Mateusz Guzik <mjguzik@gmail.com> wrote:
> >>> can you try with this:
> >>>
> >>> diff --git
> >>> a/sys/contrib/openzfs/include/os/linux/kernel/linux/simd_aarch64.h
> >>> b/sys/contrib/openzfs/include/os/linux/kernel/linux/simd_aarch64.h
> >>> index 16276b08c759..e1bca9ef140a 100644
> >>> --- a/sys/contrib/openzfs/include/os/linux/kernel/linux/simd_aarch64.h
> >>> +++ b/sys/contrib/openzfs/include/os/linux/kernel/linux/simd_aarch64.h
> >>> @@ -71,7 +71,7 @@
> >>> #define        ID_AA64PFR0_EL1         sys_reg(3, 0, 0, 1, 0)
> >>> #define        ID_AA64ISAR0_EL1        sys_reg(3, 0, 0, 6, 0)
> >>>
> >>> -#define        kfpu_allowed()          1
> >>> +#define        kfpu_allowed()          0
> >>> #define        kfpu_begin()            kernel_neon_begin()
> >>> #define        kfpu_end()              kernel_neon_end()
> >>> #define        kfpu_init()             (0)
> >>>
> >>>
> >>
> >> ops, wrong file
> >>
> >> diff --git a/sys/contrib/openzfs/include/os/freebsd/spl/sys/simd_arm.h
> >> b/sys/contrib/openzfs/include/os/freebsd/spl/sys/simd_arm.h
> >> index 178fbc3b3c6e..c462220289d6 100644
> >> --- a/sys/contrib/openzfs/include/os/freebsd/spl/sys/simd_arm.h
> >> +++ b/sys/contrib/openzfs/include/os/freebsd/spl/sys/simd_arm.h
> >> @@ -46,7 +46,7 @@
> >> #include <machine/elf.h>
> >> #include <machine/md_var.h>
> >>
> >> -#define        kfpu_allowed()          1
> >> +#define        kfpu_allowed()          0
> >> #define        kfpu_initialize(tsk)    do {} while (0)
> >> #define        kfpu_begin()            do {} while (0)
> >> #define        kfpu_end()              do {} while (0)
> >
> > It will take me a bit to setup a separate build/install
> > context for the source code vintage involved. Then more
> > time to do the build, install, and test. (I'm keeping
> > my normal environments completely before the mess.)
> >
> > FYI:
> >
> > I have used the artifact build just after your pair of zfs
> > related updates to confirm the VFP problem is still in
> > place as of that point:
> >
> > https://artifact.ci.freebsd.org/snapshot/main/5e2e3615d91f9c0c688987915ff5c8de23c22bde/arm64/aarch64/kernel.txz
> >
> > (No artifact build was exactly at either of your commits.)
> >
> > ===
> > Mark Millard
> > marklmi at yahoo.com
> >
> >
>
> I have arm64 + zfs at $job and just verified the above lets it boot
> again, so I committed already.
>

This was a known issue that we were working on fixing properly over in
https://reviews.freebsd.org/D39448... this really could have waited
just a little bit longer. This problem was already brought up in
response to the commit in question days ago.

Thanks,

Kyle Evans