Re: [PATCH] powerpc/watchdog: Fix wd_smp_last_reset_tb reporting

Excerpts from Laurent Dufour's message of November 26, 2021 3:21 am:

On 25/11/2021, 11:33:46, Nicholas Piggin wrote:

quoted

wd_smp_last_reset_tb now gets reset by watchdog_smp_panic() as part of
marking CPUs stuck and removing them from the pending mask before it
begins any printing. This causes last reset times reported to be off.

Fix this by reading it into a local variable before it gets reset.

Fixes: 76521c4b0291 ("powerpc/watchdog: Avoid holding wd_smp_lock over printk and smp_send_nmi_ipi")
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
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This is the delta for patches 1-4 between v3 and v4 of the series which
is the result of fixing the bug in patch 3. Sending because v3 got
merged into powerpc next

What about the 5th patch in the v4 series titled "[PATCH v4 5/5]
powerpc/watchdog: help remote CPUs to flush NMI printk output"?

Yes it would be good to get that one in too.

Thanks,
Nick