[Disco][SRU][PATCH 0/2] Fix for kernel machine check events logging
po-hsu.lin at canonical.com
Tue Dec 31 09:53:24 UTC 2019
== SRU Justification ==
With the 5.0 Disco kernel, the kernel cannot record the mce log while
injecting 1bit ecc error.
== Fix ==
* 09cbd219 (RAS/CEC: Increment cec_entered under the mutex lock)
* de0e0624 (RAS/CEC: Check count_threshold unconditionally)
Commit de0e0624 is the real fix for this issue. 09cbd219 is a fix to
avoid race condition, and it can make the latter become a clean
These have been landed on newer kernels.
== Test ==
Test kernel could be found here:
Verified by the bug reporter, fan jinke, the patched kernel can log
the error correctly.
== Regression Potential ==
Low, changes are limited to the RAS Correctable Errors Collector. And
the fix has been verified as working as expected.
Borislav Petkov (1):
RAS/CEC: Check count_threshold unconditionally
WANG Chao (1):
RAS/CEC: Increment cec_entered under the mutex lock
drivers/ras/cec.c | 31 ++++++++++++-------------------
1 file changed, 12 insertions(+), 19 deletions(-)
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