https://github.com/torvalds/linux
Revision 947166043732b69878123bf31f51933ad0316080 authored by Gavin Shan on 25 February 2014, 07:28:37 UTC, committed by Benjamin Herrenschmidt on 28 February 2014, 07:43:10 UTC
The PHB diag-data is important to help locating the root cause for
EEH errors such as frozen PE or fenced PHB. However, the EEH core
enables IO path by clearing part of HW registers before collecting
this data causing it to be corrupted.

This patch fixes this by dumping the PHB diag-data immediately when
frozen/fenced state on PE or PHB is detected for the first time in
eeh_ops::get_state() or next_error() backend.

Signed-off-by: Gavin Shan <shangw@linux.vnet.ibm.com>
CC: <stable@vger.kernel.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
1 parent 573ebfa
History
Tip revision: 947166043732b69878123bf31f51933ad0316080 authored by Gavin Shan on 25 February 2014, 07:28:37 UTC
powerpc/powernv: Dump PHB diag-data immediately
Tip revision: 9471660
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