linux-kernel - Re: [PATCH 0/7] Patches for kdump vs. INIT

Open Source and information security mailing list archives

Date:	Sun, 21 Jun 2009 23:31:13 -0700
From:	"Jay Lan" <jay.zen.lan@...il.com>
To:	"Hidetoshi Seto" <seto.hidetoshi@...fujitsu.com>,
	<linux-ia64@...r.kernel.org>, <linux-kernel@...r.kernel.org>
Cc:	"Haren Myneni" <hbabu@...ibm.com>, <kexec@...ts.infradead.org>,
	"Vivek Goyal" <vgoyal@...hat.com>
Subject: Re: [PATCH 0/7] Patches for kdump vs. INIT

Kdump with INIT on IPF worked on SGI's IA64 servers when i left SGI last 
December.
Is this problem something new to you after .27?

SGI folks should test this patchset to ensure no surprise is introduced to 
their servers.

Cheers,
jay

----- Original Message ----- 
From: "Hidetoshi Seto" <seto.hidetoshi@...fujitsu.com>
To: <linux-ia64@...r.kernel.org>; <linux-kernel@...r.kernel.org>
Cc: "Haren Myneni" <hbabu@...ibm.com>; <kexec@...ts.infradead.org>; "Vivek 
Goyal" <vgoyal@...hat.com>
Sent: Wednesday, June 17, 2009 11:44 PM
Subject: [PATCH 0/7] Patches for kdump vs. INIT

> Hi Tony-san, and kdump folks,
>
> I got some trouble on kdump on IPF with INIT, and my investigation
> proves there are some bugs and races in startup of kdump.
> Here are fixes based on .30, for issues I found.
>
> Since it must be serious problem for (likely big) IPF servers if we
> could fail to retrieve crashdump via kdump, so I believe these patches
> should be applied asap.
>
>
> Thanks,
> H.Seto
>
> ===
>
> Hidetoshi Seto (7):
>      ia64, kdump: Mask MCA/INIT on freezing cpus
>      ia64, kexec: Make INIT safe while kdump/kexec
>      ia64, kexec: Unregister MCA handler before kexec
>      ia64, kdump: Don't offline APs
>      ia64, kdump: Mask INIT first in panic-kdump path
>      ia64, kdump: Try INIT regardless of kdump_on_init
>      ia64, kdump: Short path to freeze CPUs
>
> arch/ia64/kernel/crash.c         |   85 
> ++++++++++++++++++++++++++------------
> arch/ia64/kernel/machine_kexec.c |   17 ++++++++
> arch/ia64/kernel/mca.c           |   15 ++++++-
> arch/ia64/kernel/mca_asm.S       |   47 +++++++++++++++++++++
> 4 files changed, 136 insertions(+), 28 deletions(-)
>
>
>
> _______________________________________________
> kexec mailing list
> kexec@...ts.infradead.org
> http://lists.infradead.org/mailman/listinfo/kexec
> 

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