linux-stable/arch/x86_64
Eric W. Biederman d3696cf737 [PATCH] x86_64 irq: Scream but don't die if we receive an unexpected irq
Due to code bugs or misbehaving hardware it is possible that we can
receive an interrupt that we have not mapped into a linux irq.  Calling
BUG when that happens is very rude, and if the problem is mild enough
prevents anything else from getting done.

So instead of calling BUG just scream loudly about the problem and
continue running.  We don't have enough knowledge to know which
interrupt triggered this behavior so we don't acknowledge it.  This will
likely prevent a recurrence of the problem by jamming up the works with
an unacknowledged interrupt.

If the interrupt was something important it is quite possible that
nothing productive will happen past this point.  But it is now at least
possible to keep working if the kernel can survive without the interrupt
we dropped on the floor.

Solutions like irqpoll should generally make dropped irqs non-fatal.

Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-10-09 14:51:43 -07:00
..
boot Remove all inclusions of <linux/config.h> 2006-10-04 03:38:54 -04:00
crypto [CRYPTO] api: Get rid of flags argument to setkey 2006-09-21 11:41:02 +10:00
ia32 Remove all inclusions of <linux/config.h> 2006-10-04 03:38:54 -04:00
kernel [PATCH] x86_64 irq: Scream but don't die if we receive an unexpected irq 2006-10-09 14:51:43 -07:00
lib Remove all inclusions of <linux/config.h> 2006-10-04 03:38:54 -04:00
mm [PATCH] Generic ioremap_page_range: x86_64 conversion 2006-10-01 00:39:32 -07:00
oprofile [PATCH] Move Kprobes and Oprofile to "Instrumentation Support" menu 2005-11-07 07:53:35 -08:00
pci [PATCH] x86: Move direct PCI scanning functions out of line 2006-09-26 10:52:41 +02:00
defconfig [PATCH] x86-64: Update defconfig 2006-10-05 18:47:21 +02:00
Kconfig more misc typo fixes 2006-10-03 22:34:14 +02:00
Kconfig.debug [PATCH] lockdep: irqtrace subsystem, x86_64 support 2006-07-03 15:27:03 -07:00
Makefile [PATCH] i386/x86-64: Work around gcc bug with noreturn functions in unwinder 2006-09-26 10:52:41 +02:00