Messages in this thread | | | From | Michel Lespinasse <> | Date | Wed, 17 Jun 2020 05:04:52 -0700 | Subject | Re: [PATCH] openrisc: Fix boot oops when DEBUG_VM is enabled |
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On Wed, Jun 17, 2020 at 2:03 AM Stafford Horne <shorne@gmail.com> wrote: > Since v5.8-rc1 OpenRISC Linux fails to boot when DEBUG_VM is enabled. > This has been bisected to commit 42fc541404f2 ("mmap locking API: add > mmap_assert_locked() and mmap_assert_write_locked()"). > > The added locking checks exposed the issue that OpenRISC was not taking > this mmap lock when during page walks for DMA operations. This patch > locks and unlocks the mmap lock for page walking. > > Fixes: 42fc541404f2 ("mmap locking API: add mmap_assert_locked() and mmap_assert_write_locked()" > Cc: Michel Lespinasse <walken@google.com> > Signed-off-by: Stafford Horne <shorne@gmail.com>
Thanks for the fix.
Reviewed-by: Michel Lespinasse <walken@google.com>
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