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| author | Ingo Molnar <mingo@elte.hu> | 2009-01-15 15:46:08 +0100 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2009-01-20 00:17:01 +0100 |
| commit | bfa318ad52a23f1e303d176b44366cdd2bb71ad2 (patch) | |
| tree | bf58fe12825bfebdc02f1acce0cd79f246491e7b /arch/x86/mm | |
| parent | 72859081851af2bda04117ca3d64206ffa199e5e (diff) | |
fix: crash: IP: __bitmap_intersects+0x48/0x73
-tip testing found this crash:
> [ 35.258515] calling acpi_cpufreq_init+0x0/0x127 @ 1
> [ 35.264127] BUG: unable to handle kernel NULL pointer dereference at (null)
> [ 35.267554] IP: [<ffffffff80478092>] __bitmap_intersects+0x48/0x73
> [ 35.267554] PGD 0
> [ 35.267554] Oops: 0000 [#1] SMP DEBUG_PAGEALLOC
arch/x86/kernel/cpu/cpufreq/acpi-cpufreq.c is still broken: there's no
allocation of the variable mask, so we pass in an uninitialized cmd.mask
field to drv_read(), which then passes it to the scheduler which then
crashes ...
Switch it over to the much simpler constant-cpumask-pointers approach.
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch/x86/mm')
0 files changed, 0 insertions, 0 deletions