Bryan Sutula 76e677e25d [IA64] Avoid kernel hang during CMC interrupt storm ... I've noticed a kernel hang during a storm of CMC interrupts, which was tracked down to the continual execution of the interrupt handler. There's code in the CMC handler that's supposed to disable CMC interrupts and switch to polling mode when it sees a bunch of CMCs. Because disabling CMCs across all CPUs isn't safe in interrupt context, the disable is done with a schedule_work(). But with continual CMC interrupts, the schedule_work() never gets executed. The following patch immediately disables CMC interrupts for the current CPU. This then allows (at least) one CPU to ignore CMC interrupts, execute the schedule_work() code, and disable CMC interrupts on the rest of the CPUs. Acked-by: Keith Owens <kaos@sgi.com> Signed-off-by: Bryan Sutula <Bryan.Sutula@hp.com> Signed-off-by: Tony Luck <tony.luck@intel.com>		2005-10-06 15:04:11 -07:00
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configs	[IA64] Manual merge fix for 3 files	2005-09-08 14:27:13 -07:00
dig
hp	[IA64] Fix simscsi for new SCSI midlayer	2005-09-22 10:42:39 -07:00
ia32	[PATCH] error path in setup_arg_pages() misses vm_unacct_memory()	2005-09-14 11:18:13 -07:00
kernel	[IA64] Avoid kernel hang during CMC interrupt storm	2005-10-06 15:04:11 -07:00
lib	[LIB]: Consolidate _atomic_dec_and_lock()	2005-09-14 21:47:01 -07:00
mm	Pull sim-fixes into release branch	2005-09-11 14:27:15 -07:00
oprofile
pci	[IA64] Minor cleanups - remove CONFIG_ACPI_DEALLOCATE_IRQ	2005-09-07 14:00:08 -07:00
scripts
sn	Pull sn-features into release branch	2005-09-11 14:34:23 -07:00
defconfig	[IA64] Manual merge fix for 3 files	2005-09-08 14:27:13 -07:00
install.sh
Kconfig	[LIB]: Consolidate _atomic_dec_and_lock()	2005-09-14 21:47:01 -07:00
Kconfig.debug	[PATCH] Kprobes/IA64: arch specific handling	2005-06-23 09:45:22 -07:00
Makefile	[IA64] fix circular dependency on generation of asm-offsets.h	2005-09-13 08:50:39 -07:00
module.lds