From: Andreas Mohr <andi@rhlx01.fht-esslingen.de>
To: Grant Coady <gcoady.lk@gmail.com>
Cc: Andi Kleen <ak@suse.de>, Dmitry Torokhov <dtor@insightbb.com>,
Andrew Morton <akpm@osdl.org>,
linux-kernel@vger.kernel.org
Subject: Re: [RFC/PATCH-mm] i8042: activate panic blink only in X
Date: Tue, 5 Sep 2006 01:03:58 +0200 [thread overview]
Message-ID: <20060904230358.GC1614@rhlx01.fht-esslingen.de> (raw)
In-Reply-To: <ri9pf258l1q51kgsjs4u90sjp9581djjgs@4ax.com>
Hi,
On Tue, Sep 05, 2006 at 08:29:09AM +1000, Grant Coady wrote:
> If possible, kill the console blank timer too? (dunno if you have).
>
> Example: Oops screen on 2.4 recently I paged up to where the fault
> started, the screen blanker kicked in while I was hand copying info
> and wiped previous screens :( Caused significant delay in working
> out what the issue was (slackware-10.2 2.4.33.1 glibc nptl boo-boo).
>
> Is it safe / easy to do on oops/panic?
It should be as easy as e.g. doing a
int system_oopsed __read_mostly = 0;
if (!system_oopsed)
blank();
in the timer handler as opposed to painfully deregistering the whole handler
in the critical system state after an OOPS.
A funny side effect is that this way even improves system stability
after OOPS, since the blanking (which doesn't happen then)
might bomb, too ;)
Andreas Mohr
next prev parent reply other threads:[~2006-09-04 23:04 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-09-03 3:20 Dmitry Torokhov
2006-09-03 13:20 ` Grant Coady
2006-09-04 14:58 ` Andi Kleen
2006-09-04 22:29 ` Grant Coady
2006-09-04 23:03 ` Andreas Mohr [this message]
2006-09-05 0:16 ` Grant Coady
2006-09-21 4:07 ` Dmitry Torokhov
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