linux-kernel - Re: [PATCH] panic_on

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <20060717231056.GC12463@verge.net.au>
Date:	Mon, 17 Jul 2006 19:10:59 -0400
From:	Horms <horms@...ge.net.au>
To:	Andi Kleen <ak@...e.de>
Cc:	Russell King <rmk@....linux.org.uk>,
	Tony Luck <tony.luck@...el.com>,
	Paul Mackerras <paulus@...ba.org>,
	Anton Blanchard <anton@...ba.org>,
	Chris Zankel <chris@...kel.net>, Andrew Morton <akpm@...l.org>,
	linux-ia64@...r.kernel.org, linuxppc-dev@...abs.org,
	discuss@...-64.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] panic_on_oops: remove ssleep()

On Tue, Jul 18, 2006 at 12:27:51AM +0200, Andi Kleen wrote:
> On Monday 17 July 2006 18:17, Horms wrote:
> > This patch is part of an effort to unify the panic_on_oops behaviour
> > across all architectures that implement it.
> >
> > It was pointed out to me by Andi Kleen that if an oops has occured
> > in interrupt context, then calling sleep() in the oops path will only cause
> > a panic, and that it would be really better for it not to be in the path at
> > all.
> >
> > This patch removes the ssleep() call and reworks the console message
> > accordinly.  I have a slght concern that the resulting console message is
> > too long, feedback welcome.
> 
> Keeping the delay might be actually useful so that you can see the panic
> before system reboots when reboot on panic is enabled. I would just use a loop
> of mdelays(1) with touch_nmi_watchdog/touch_softirq_watchdog()s
> inbetween.

Ok, I will look into making that happen. I agree that the pause is
quite useful.

-- 
Horms                                           
  H: http://www.vergenet.net/~horms/
  W: http://www.valinux.co.jp/en/

-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/