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From: "Randy.Dunlap" <rdunlap@xenotime.net>
To: Jan Engelhardt <jengelh@linux01.gwdg.de>
Cc: vherva@vianova.fi, linux-kernel@vger.kernel.org
Subject: Re: oops pauser.
Date: Sun, 8 Jan 2006 17:43:14 -0800	[thread overview]
Message-ID: <20060108174314.49f0e2b3.rdunlap@xenotime.net> (raw)
In-Reply-To: <Pine.LNX.4.61.0601082034150.15902@yvahk01.tjqt.qr>

On Sun, 8 Jan 2006 20:35:08 +0100 (MET) Jan Engelhardt wrote:

> >> I believe kmsgdump (http://www.xenotime.net/linux/kmsgdump/) uses its own
> >> minimal 16-bit floppy driver to save the oops dump. 
> >
> >It just switches to real mode and uses BIOS calls.
> >
> 
> This technique btw is what I suggested (switch to 80x50 vga mode
> (if not in X)) in case of a longer oops trace.

kmsgdump already shows all of the kernel log buffer that is in
memory (has not been written to disk, basically).

If I (or we) had some time and motivation, I have a
contributed patch to kmsgdump that:

a.  saves and dumps all of the kernel log buffer
    (reminder:  current dump targets are display, parallel port
    printer, and legacy floppy disk)
b.  adds a hard disk dump target and attempts to make this safe
    by pre-reserving and writing each block of it with a
    signature + block number (and maybe more, I'm not sure
    right now)
c.  add x86-64 support

but I have not merged this code into kmsgdump yet, nor have
I even tested it.  I can't test the x86-64 support since I
don't (yet) have an x86-64 system available for this.

If anyone wants to work on this, I'll put the additional
code on the web.

---
~Randy

  reply	other threads:[~2006-01-09  1:43 UTC|newest]

Thread overview: 76+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2006-01-05  4:52 oops pauser Dave Jones
2006-01-05  6:10 ` oops pauser. / boot_delayer Randy.Dunlap
2006-01-05  7:30   ` Bernd Eckenfels
2006-01-05  8:07     ` Jan Engelhardt
2006-01-06  1:28       ` David Lang
2006-01-06  5:36         ` Dave Jones
2006-01-06  7:00           ` David Lang
2006-01-08 13:21           ` Pavel Machek
2006-01-08 19:30             ` Josef Sipek
2006-01-08 23:08               ` Pavel Machek
2006-01-08 23:39                 ` Josef Sipek
2006-01-06  7:36         ` Jan Engelhardt
2006-01-06  8:33           ` David Lang
2006-01-05  9:25     ` Grant Coady
2006-01-05 15:31       ` Mark Lord
2006-01-05 15:38         ` Avishay Traeger
2006-01-05 19:15           ` Mark Lord
2006-01-05 11:11     ` Dave Jones
2006-01-07 21:44       ` Kurtis D. Rader
2006-01-07 21:48         ` Arjan van de Ven
2006-01-07 22:00           ` Kurtis D. Rader
2006-01-08 23:29           ` David Lang
2006-01-07 22:27         ` Bernd Eckenfels
2006-01-05  8:15 ` oops pauser Jan Engelhardt
2006-01-05 10:33   ` Dave Jones
2006-01-05 11:05     ` Jan Engelhardt
2006-01-05 12:05       ` Keith Owens
2006-01-05 15:17       ` Jesper Juhl
2006-01-05 13:46     ` Kurt Wall
2006-01-06  1:24     ` David Lang
2006-01-06  1:41       ` Josef Sipek
2006-01-08 13:38     ` Ville Herva
2006-01-08 13:53       ` Randy.Dunlap
2006-01-08 19:35         ` Jan Engelhardt
2006-01-09  1:43           ` Randy.Dunlap [this message]
2006-01-08 19:40         ` Grant Coady
2006-01-09  1:45           ` Randy.Dunlap
2006-01-09 16:15             ` Jan Engelhardt
2006-01-09 16:25               ` Ville Herva
2006-01-09 16:39               ` Randy.Dunlap
2006-01-05 13:37 ` Alan Cox
2006-01-05 20:52   ` Dave Jones
2006-01-06 13:31     ` Alan Cox
2006-01-06 20:33       ` Dave Jones
2006-01-06 15:22     ` Pavel Machek
2006-01-06 19:06       ` Jan Engelhardt
2006-01-06 22:34         ` Pavel Machek
2006-01-06 22:48       ` Dave Jones
2006-01-05 13:58 ` Avishay Traeger
2006-01-05 20:54   ` Dave Jones
2006-01-06  0:19   ` Josef Sipek
2006-01-06  1:12     ` Bernd Eckenfels
2006-01-06  1:35       ` Josef Sipek
2006-01-06  2:21         ` Bernd Eckenfels
2006-01-05 14:39 ` Kyle McMartin
2006-01-09 18:43 ` Console debugging wishlist was: " Andi Kleen
2006-01-10 20:25   ` Jan Engelhardt
2006-01-10 20:29     ` Josef Sipek
2006-01-10 20:44       ` Jan Engelhardt
2006-01-10 22:54         ` Josef Sipek
2006-01-10 20:46       ` Andi Kleen
2006-01-10 20:45     ` Andi Kleen
2006-01-10 21:06       ` Jan Engelhardt
2006-01-10 21:18         ` Andi Kleen
2006-01-10 21:30           ` Jan Engelhardt
2006-01-11 12:24     ` Antonino A. Daplas
2006-01-11 12:31       ` Andi Kleen
2006-01-11 13:05         ` Antonino A. Daplas
2006-01-11 13:17           ` Andi Kleen
2006-01-11 13:43             ` Antonino A. Daplas
2006-01-11 13:51               ` Andi Kleen
2006-01-11 18:34           ` Jan Engelhardt
     [not found] <5rvok-5Sr-1@gated-at.bofh.it>
     [not found] ` <5ryvR-2aN-5@gated-at.bofh.it>
     [not found]   ` <5rAHn-5kc-9@gated-at.bofh.it>
2006-01-06  5:52     ` Robert Hancock
2006-01-06  7:06       ` Jan Engelhardt
2006-01-06  7:47         ` Randy.Dunlap
2006-01-06  8:58         ` Dave Jones

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