| commit | cc7786d3ee7e3c979799db834b528db2c0834c2e | [log] [tgz] |
|---|---|---|
| author | Nicholas Piggin <npiggin@gmail.com> | Mon Jul 25 14:26:51 2016 +1000 |
| committer | Benjamin Herrenschmidt <benh@kernel.crashing.org> | Mon Aug 29 12:47:56 2016 +1000 |
| tree | 5983f225848f30047b2f61ec6c04c7d779a302ac | |
| parent | 7c379526d7e71d2041c8ca0bd9af4888916a14b9 [diff] |
powerpc/tm: do not use r13 for tabort_syscall tabort_syscall runs with RI=1, so a nested recoverable machine check will load the paca into r13 and overwrite what we loaded it with, because exceptions returning to privileged mode do not restore r13. Fixes: b4b56f9ecab4 (powerpc/tm: Abort syscalls in active transactions) Cc: stable@vger.kernel.org Signed-off-by: Nick Piggin <npiggin@gmail.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>