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(parent: 579afe8) | patch
xtensa: fix get_wchan
authorMax Filippov <jcmvbkbc@gmail.com>
Wed, 2 Jan 2019 09:08:32 +0000 (01:08 -0800)
committerMax Filippov <jcmvbkbc@gmail.com>
Thu, 7 Feb 2019 20:34:02 +0000 (12:34 -0800)
commitd90b88fd3653f1fb66ecc6571b860d5a5749fa56
tree97ff4ed6e1be83b1334ea8624d81306537b7aef7tree | snapshot
parent579afe866f52adcd921272a224ab36733051059ccommit | diff
xtensa: fix get_wchan

Stack unwinding is implemented incorrectly in xtensa get_wchan: instead
of extracting a0 and a1 registers from the spill location under the
stack pointer it extracts a word pointed to by the stack pointer and
subtracts 4 or 3 from it.

Cc: stable@vger.kernel.org
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
arch/xtensa/kernel/process.c diff | blob | history
Domain: System / Kernel;