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(parent: e3029a8) | patch
powerpc/watchdog: Do not panic from locked CPU's IPI handler
authorNicholas Piggin <npiggin@gmail.com>
Fri, 29 Sep 2017 03:29:37 +0000 (13:29 +1000)
committerMichael Ellerman <mpe@ellerman.id.au>
Wed, 4 Oct 2017 00:25:40 +0000 (11:25 +1100)
commit03871da61a22727704651ee442d650be87913e79
tree4bd4e1525beae56b055dae418e0a87ffe03b08c9tree | snapshot
parente3029a8894f480a1cea6a90d253ab85c5d18189fcommit | diff
powerpc/watchdog: Do not panic from locked CPU's IPI handler

The SMP watchdog will detect locked CPUs and IPI them to print a
backtrace and registers. If panic on hard lockup is enabled, do not
panic from this handler, because that can cause recursion into the IPI
layer during the panic.

The caller already panics in this case.

Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
arch/powerpc/kernel/watchdog.c diff | blob | history
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