From 01aaed9d43d5fff1ddb4c8de859f87ed7ee3608a Mon Sep 17 00:00:00 2001 From: Haren Myneni Date: Tue, 7 Feb 2006 15:47:03 -0800 Subject: [PATCH] powerpc: Trivial fix to set the proper timeout value for kdump The panic CPU is waiting forever due to some large timeout value if some CPU is not responding to an IPI. This patch fixes the problem - the maximum waiting period will be 10 seconds and then the kdump boot will go ahead. Signed-off-by: Haren Myneni Signed-off-by: Paul Mackerras --- arch/powerpc/kernel/crash.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/arch/powerpc/kernel/crash.c b/arch/powerpc/kernel/crash.c index 8c21d378f5d2..778f22fd85d2 100644 --- a/arch/powerpc/kernel/crash.c +++ b/arch/powerpc/kernel/crash.c @@ -134,8 +134,10 @@ static void crash_kexec_prepare_cpus(void) * the crash CPU will send an IPI and wait for other CPUs to * respond. If not, proceed the kexec boot even though we failed to * capture other CPU states. + * Delay of at least 10 seconds. */ - msecs = 1000000; + printk(KERN_ALERT "Sending IPI to other cpus...\n"); + msecs = 10000; while ((atomic_read(&waiting_for_crash_ipi) > 0) && (--msecs > 0)) { barrier(); mdelay(1); -- cgit v1.2.3