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| author | Bernd Schmidt <bernds_cb1@t-online.de> | 2008-08-25 10:41:15 (GMT) |
|---|---|---|
| committer | Bryan Wu <cooloney@kernel.org> | 2008-08-25 10:41:15 (GMT) |
| commit | 3d9b7a5ce534f3963afcf8f4777267e5899fe007 (patch) | |
| tree | 8b12d350b00a0c0f12d4764fe5998ef0a9bfed57 /arch/sh/lib64/copy_user_memcpy.S | |
| parent | 225f7e1eb56ad054c328ae1b11601ea4de7488ba (diff) | |
| download | linux-fsl-qoriq-3d9b7a5ce534f3963afcf8f4777267e5899fe007.tar.xz | |
Blackfin arch: fix bug - MPU crashes under stress
Bug Description:
a customer reported under IRQ stress, running applications may
wrongly trigger an ICPLB miss and be killed. after playing a
bit more, here's a test case that may be triggering the same bug.
Fixing:
After modifying page protections, only modify the active CPLBs if the
protection change was made for the active mm.
Signed-off-by: Bernd Schmidt <bernds_cb1@t-online.de>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
Diffstat (limited to 'arch/sh/lib64/copy_user_memcpy.S')
0 files changed, 0 insertions, 0 deletions