https://github.com/torvalds/linux
Revision 7d4151b5098fb0bf7f6f8d1156e1ab9d83260580 authored by Olof Johansson on 28 December 2013, 21:01:47 UTC, committed by Benjamin Herrenschmidt on 30 December 2013, 03:02:34 UTC
Commit 5c0484e25ec0 ('powerpc: Endian safe trampoline') resulted in
losing proper alignment of the spinlock variables used when booting
secondary CPUs, causing some quite odd issues with failing to boot on
PA Semi-based systems.

This showed itself on ppc64_defconfig, but not on pasemi_defconfig,
so it had gone unnoticed when I initially tested the LE patch set.

Fix is to add explicit alignment instead of relying on good luck. :)

[ It appears that there is a different issue with PA Semi systems
  however this fix is definitely correct so applying anyway -- BenH
]

Fixes: 5c0484e25ec0 ('powerpc: Endian safe trampoline')
Reported-by: Christian Zigotzky <chzigotzky@xenosoft.de>
Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=67811
Signed-off-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
1 parent 286e4f9
History
Tip revision: 7d4151b5098fb0bf7f6f8d1156e1ab9d83260580 authored by Olof Johansson on 28 December 2013, 21:01:47 UTC
powerpc: Fix alignment of secondary cpu spin vars
Tip revision: 7d4151b
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