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| author | Rafał Miłecki <zajec5@gmail.com> | 2014-04-05 18:08:25 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2014-05-13 13:59:43 +0200 |
| commit | 43dae355ff1d15be58dd267a07aea6eb31ebfd9f (patch) | |
| tree | 6fb11568c4d56669a55d1cdf2dcaa80e7b5faa2f /Documentation | |
| parent | ecb4abb32b38bd7ef4a1fd0c8c122c6491f534c5 (diff) | |
b43: Fix machine check error due to improper access of B43_MMIO_PSM_PHY_HDR
commit 12cd43c6ed6da7bf7c5afbd74da6959cda6d056b upstream.
Register B43_MMIO_PSM_PHY_HDR is 16 bit one, so accessing it with 32b
functions isn't safe. On my machine it causes delayed (!) CPU exception:
Disabling lock debugging due to kernel taint
mce: [Hardware Error]: CPU 0: Machine Check Exception: 4 Bank 4: b200000000070f0f
mce: [Hardware Error]: TSC 164083803dc
mce: [Hardware Error]: PROCESSOR 2:20fc2 TIME 1396650505 SOCKET 0 APIC 0 microcode 0
mce: [Hardware Error]: Run the above through 'mcelog --ascii'
mce: [Hardware Error]: Machine check: Processor context corrupt
Kernel panic - not syncing: Fatal machine check on current CPU
Kernel Offset: 0x0 from 0xffffffff81000000 (relocation range: 0xffffffff80000000-0xffffffff9fffffff)
Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Acked-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'Documentation')
0 files changed, 0 insertions, 0 deletions