From: Rafał Miłecki Date: Sat, 5 Apr 2014 16:08:25 +0000 (+0200) Subject: b43: Fix machine check error due to improper access of B43_MMIO_PSM_PHY_HDR X-Git-Tag: v3.15-rc1~8^2~8^2^2~3 X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=12cd43c6ed6da7bf7c5afbd74da6959cda6d056b;p=pandora-kernel.git b43: Fix machine check error due to improper access of B43_MMIO_PSM_PHY_HDR 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 Acked-by: Larry Finger Cc: Stable [2.6.35+] Signed-off-by: John W. Linville --- Reading git-diff-tree failed