From: Anton Blanchard <anton@samba•org>
To: benh@kernel•crashing.org, paulus@samba•org, hbabu@us•ibm.com
Cc: linuxppc-dev@lists•ozlabs.org
Subject: [PATCH 6/9] powerpc: Reduce pseries panic timeout from 180s to 10s
Date: Wed, 30 Nov 2011 21:23:14 +1100 [thread overview]
Message-ID: <20111130102415.232590978@samba.org> (raw)
In-Reply-To: 20111130102308.348262468@samba.org
We've had a 180 second panic timeout on ppc64 for as long as I
can remember. This patch reduces it to 10 seconds on pseries for a few
reasons:
- Almost all pseries machines have a hypervisor console so panic
output will be available in a scrollback buffer.
- The 180 seconds impacts our availability, users (other than
kernel hackers) just want the box to come back around so it
can continue its work.
- I spend a lot of my life staring at the 180 second panic timeout.
Many pseries machines take minutes to power cycle, so it's quicker
to sit through the 180 seconds than it is to power cycle.
Signed-off-by: Anton Blanchard <anton@samba•org>
---
Index: linux-build/arch/powerpc/platforms/pseries/setup.c
===================================================================
--- linux-build.orig/arch/powerpc/platforms/pseries/setup.c 2011-11-08 11:41:51.842584444 +1100
+++ linux-build/arch/powerpc/platforms/pseries/setup.c 2011-11-14 08:32:24.581252444 +1100
@@ -354,6 +354,8 @@ early_initcall(alloc_dispatch_log_kmem_c
static void __init pSeries_setup_arch(void)
{
+ panic_timeout = 10;
+
/* Discover PIC type and setup ppc_md accordingly */
pseries_discover_pic();
next prev parent reply other threads:[~2011-11-30 10:23 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-11-30 10:23 [PATCH 0/9] oops and kdump patches Anton Blanchard
2011-11-30 10:23 ` [PATCH 1/9] powerpc: Give us time to get all oopses out before panicking Anton Blanchard
2011-11-30 10:23 ` [PATCH 2/9] powerpc: Remove broken and complicated kdump system reset code Anton Blanchard
2011-11-30 10:23 ` [PATCH 3/9] powerpc/kdump: Use setjmp/longjmp to handle kdump and system reset recursion Anton Blanchard
2011-11-30 10:23 ` [PATCH 4/9] powerpc: Cleanup crash/kexec code Anton Blanchard
2011-11-30 10:23 ` [PATCH 5/9] powerpc: Rework die() Anton Blanchard
2011-11-30 10:23 ` Anton Blanchard [this message]
2011-11-30 10:23 ` [PATCH 7/9] powerpc/xics: Reset the CPPR if H_EOI fails Anton Blanchard
2011-11-30 10:23 ` [PATCH 8/9] powerpc/kdump: Delay before sending IPI on a system reset Anton Blanchard
2011-11-30 10:23 ` [PATCH 9/9] powerpc/kdump: Only save CPU state first time through the secondary CPU capture code Anton Blanchard
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