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authorKeith Owens <kaos@sgi.com>2006-06-26 13:59:56 +0200
committerLinus Torvalds <torvalds@g5.osdl.org>2006-06-26 10:48:22 -0700
commite77deacb7b078156fcadf27b838a4ce1a65eda04 (patch)
treee594ce9a9f65c45e19cfb3b8417c614dd2eb5386 /arch/i386
parent704fc59e1d056de80beaf30174bc8e0b1682efbb (diff)
[PATCH] x86_64: Avoid broadcasting NMI IPIs
On some i386/x86_64 systems, sending an NMI IPI as a broadcast will reset the system. This seems to be a BIOS bug which affects machines where one or more cpus are not under OS control. It occurs on HT systems with a version of the OS that is not compiled without HT support. It also occurs when a system is booted with max_cpus=n where 2 <= n < cpus known to the BIOS. The fix is to always send NMI IPI as a mask instead of as a broadcast. Signed-off-by: Keith Owens <kaos@sgi.com> Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'arch/i386')
0 files changed, 0 insertions, 0 deletions