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205 Commits

Author SHA1 Message Date
H. Peter Anvin
adf77bac05 x86: prioritize the FPU traps for the error code 
In the case of multiple FPU errors, prioritize the error codes,
instead of returning __SI_FAULT, which ends up pushing a 0 as the
error code to userspace, a POSIX violation.

For i386, we will simply return if there are no errors at all; for
x86-64 this is probably a "can't happen" (and the code should be
unified), but for this patch, return __SI_FAULT|SI_KERNEL if this ever
happens.

Signed-off-by: H. Peter Anvin <hpa@zytor.com>
 2008-12-22 18:00:18 -08:00
Hiroshi Shimamoto
915b0d0104 x86: hardirq: introduce inc_irq_stat() 
Impact: cleanup

Introduce inc_irq_stat() macro and unify irq_stat accounting code.

Signed-off-by: Hiroshi Shimamoto <h-shimamoto@ct.jp.nec.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
 2008-12-12 11:59:49 +01:00
Andi Kleen
d2f6f7aeee MCE: Don't run 32bit machine checks with interrupts on 
Running machine checks with interrupt on is a extremly bad idea. The machine
check handler only runs when the system is broken and needs to finish
as quickly as possible.

Remove the respective bogus post 2.6.27 regression and call
the machine check vector directly again.

This removes only code.

Signed-off-by: Andi Kleen <ak@linux.intel.com>
[Cherry-picked from x86/mce]
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
 2008-10-22 13:19:01 +02:00
Alexander van Heukelum
dd6e4eba1c dumpstack: x86: move die_nmi to dumpstack_32.c 
For some reason die_nmi is still defined in traps.c for
i386, but is found in dumpstack_64.c for x86_64. Move it
to dumpstack_32.c

Signed-off-by: Alexander van Heukelum <heukelum@fastmail.fm>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
 2008-10-13 10:33:39 +02:00
Alexander van Heukelum
8728861b4f traps: x86: finalize unification of traps.c 
traps_32.c and traps_64.c are now equal. Move one to traps.c,
delete the other one and change the Makefile

Signed-off-by: Alexander van Heukelum <heukelum@fastmail.fm>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
 2008-10-13 10:33:29 +02:00