Commit 01aaed9d authored Feb 07, 2006 by Haren Myneni Committed by Paul Mackerras Feb 24, 2006

[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 <haren@us.ibm.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>

parent c57914a4

arch/powerpc/kernel/crash.c

+3 −1

Original line number	Diff line number	Diff line
		@@ -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);