diff options
| author | Suren Baghdasaryan <surenb@google.com> | 2023-07-05 18:14:00 -0700 |
|---|---|---|
| committer | Andrew Morton <akpm@linux-foundation.org> | 2023-07-08 09:29:29 -0700 |
| commit | f96c48670319d685d18d50819ed0c1ef751ed2ac (patch) | |
| tree | f27d3f2caf67b498785f1ad0855071076dea6233 | |
| parent | 2b4f3b4987b56365b981f44a7e843efa5b6619b9 (diff) | |
| download | iio-f96c48670319d685d18d50819ed0c1ef751ed2ac.tar.gz | |
mm: disable CONFIG_PER_VMA_LOCK until its fixed
A memory corruption was reported in [1] with bisection pointing to the
patch [2] enabling per-VMA locks for x86. Disable per-VMA locks config to
prevent this issue until the fix is confirmed. This is expected to be a
temporary measure.
[1] https://bugzilla.kernel.org/show_bug.cgi?id=217624
[2] https://lore.kernel.org/all/20230227173632.3292573-30-surenb@google.com
Link: https://lkml.kernel.org/r/20230706011400.2949242-3-surenb@google.com
Reported-by: Jiri Slaby <jirislaby@kernel.org>
Closes: https://lore.kernel.org/all/dbdef34c-3a07-5951-e1ae-e9c6e3cdf51b@kernel.org/
Reported-by: Jacob Young <jacobly.alt@gmail.com>
Closes: https://bugzilla.kernel.org/show_bug.cgi?id=217624
Fixes: 0bff0aaea03e ("x86/mm: try VMA lock-based page fault handling first")
Signed-off-by: Suren Baghdasaryan <surenb@google.com>
Cc: David Hildenbrand <david@redhat.com>
Cc: Holger Hoffstätte <holger@applied-asynchrony.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
| -rw-r--r-- | mm/Kconfig | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/mm/Kconfig b/mm/Kconfig index 09130434e30d38..0abc6c71dd8931 100644 --- a/mm/Kconfig +++ b/mm/Kconfig @@ -1224,8 +1224,9 @@ config ARCH_SUPPORTS_PER_VMA_LOCK def_bool n config PER_VMA_LOCK - def_bool y + bool "Enable per-vma locking during page fault handling." depends on ARCH_SUPPORTS_PER_VMA_LOCK && MMU && SMP + depends on BROKEN help Allow per-vma locking during page fault handling. |