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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>		20 years ago
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cpufreq	…
Makefile	…
acpi-ext.c	…
acpi.c	[IA64] Remove warnings for gcc 4.0 IA64 compilation.	20 years ago
asm-offsets.c	[IA64] fix circular dependency on generation of asm-offsets.h	20 years ago
brl_emu.c	…
cyclone.c	…
efi.c	…
efi_stub.S	…
entry.S	[IA64] Remove warnings for gcc 4.0 IA64 compilation.	20 years ago
entry.h	…
fsys.S	…
gate-data.S	…
gate.S	…
gate.lds.S	…
head.S	…
ia64_ksyms.c	…
init_task.c	…
iosapic.c	…
irq.c	…
irq_ia64.c	…
irq_lsapic.c	…
ivt.S	[IA64] MCA/INIT: remove the physical mode path from minstate.h	20 years ago
jprobes.S	…
kprobes.c	…
machvec.c	…
mca.c	[IA64] Avoid kernel hang during CMC interrupt storm	20 years ago
mca_asm.S	[IA64] Wire in the MCA/INIT handler stacks	20 years ago
mca_drv.c	[IA64] MCA recovery verify pfn_valid	20 years ago
mca_drv.h	[IA64] mca_drv cleanup	20 years ago
mca_drv_asm.S	[IA64] mca_drv cleanup	20 years ago
minstate.h	[IA64] MCA/INIT: remove the physical mode path from minstate.h	20 years ago
module.c	…
numa.c	…
pal.S	…
palinfo.c	…
patch.c	…
perfmon.c	[PATCH] files: fix preemption issues	20 years ago
perfmon_default_smpl.c	…
perfmon_generic.h	…
perfmon_itanium.h	…
perfmon_mckinley.h	…
process.c	…
ptrace.c	…
sal.c	…
salinfo.c	…
semaphore.c	…
setup.c	…
sigframe.h	…
signal.c	…
smp.c	…
smpboot.c	…
sys_ia64.c	…
time.c	…
topology.c	…
traps.c	…
unaligned.c	…
uncached.c	…
unwind.c	[IA64] MCA/INIT: remove obsolete unwind code	20 years ago
unwind_decoder.c	…
unwind_i.h	…
vmlinux.lds.S	…