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authorGreg Ungerer <gerg@snapgear.com>2009-05-20 10:12:32 +0400
committerRalf Baechle <ralf@linux-mips.org>2009-05-20 21:53:14 +0400
commita5e696e5d0f1377ff6beb10d2f40edb6a3d1de18 (patch)
tree2f7b194c53e9a7e2ab6c8b58335c299a897231fe /COPYING
parent195d1a96ae5fdfbedb8dc4b97afee578921fa99e (diff)
downloadlinux-a5e696e5d0f1377ff6beb10d2f40edb6a3d1de18.tar.xz
MIPS: 64-bit: Fix system lockup.
The address range size calculation inside local_flush_tlb_kernel_range() is being truncated by a too small size variable holder on 64-bit systems. The truncated size can result in an erroneous tlbsize check that means we sit spinning inside a loop trying to flush a hige number of TLB entries. This is for all intents and purposes a system hang. Fix by using an appropriately sized valiable to hold the size. [Ralf: Greg's original patch submission identified the issue and fixed one instance in tlb-r4k.c but there there were several more. For consistency I also modified tlb-r3k.c even though that file is only used on 32-bit.] Signed-off-by: Greg Ungerer <gerg@snapgear.com> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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