forked from luck/tmp_suning_uos_patched
67701ae976
A bug against an xSeries system showed up recently noting that the check_nmi_watchdog() test was failing. I have been investigating it and discovered in both i386 and x86_64 the recent change to the routine to use the cpu_callin_map has uncovered a problem. Prior to that change, on an SMP box, the test was trivally passing because all cpu's were found to not yet be online, but now with the callin_map they are discovered, it goes on to test the counter and they have not yet begun to increment, so it announces a CPU is stuck and bails out. On all the systems I have access to test, the announcement of failure is also bougs... by the time you can login and check /proc/interrupts, the NMI count is happily incrementing on all CPUs. Its just that the test is being done too early. I have tried moving the call to the test around a bit, and it was always too early. I finally hit on this proposed solution, it delays the routine via a late_initcall(), seems like the right solution to me. Signed-off-by: Adrian Bunk <bunk@stusta.de> Cc: Andi Kleen <ak@muc.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org> |
||
|---|---|---|
| .. | ||
| acpi | ||
| cpufreq | ||
| aperture.c | ||
| apic.c | ||
| asm-offsets.c | ||
| e820.c | ||
| early_printk.c | ||
| entry.S | ||
| genapic_cluster.c | ||
| genapic_flat.c | ||
| genapic.c | ||
| head64.c | ||
| head.S | ||
| i387.c | ||
| i8259.c | ||
| init_task.c | ||
| io_apic.c | ||
| ioport.c | ||
| irq.c | ||
| kprobes.c | ||
| ldt.c | ||
| Makefile | ||
| mce_intel.c | ||
| mce.c | ||
| module.c | ||
| mpparse.c | ||
| msr.c | ||
| nmi.c | ||
| pci-dma.c | ||
| pci-gart.c | ||
| pci-nommu.c | ||
| process.c | ||
| ptrace.c | ||
| reboot.c | ||
| semaphore.c | ||
| setup64.c | ||
| setup.c | ||
| signal.c | ||
| smp.c | ||
| smpboot.c | ||
| suspend_asm.S | ||
| suspend.c | ||
| sys_x86_64.c | ||
| syscall.c | ||
| time.c | ||
| trampoline.S | ||
| traps.c | ||
| vmlinux.lds.S | ||
| vsyscall.c | ||
| x8664_ksyms.c | ||