From: Stevie Trujillo <stevie.trujillo@gmail.com>
To: Milton Miller <miltonm@bga.com>
Cc: linux-kernel@vger.kernel.org
Subject: Re: How to get backtrace? modprobe -r iwlagn; modprobe iwlagn kills kernel
Date: Wed, 18 May 2011 18:29:34 +0200 [thread overview]
Message-ID: <201105181829.34827.stevie.trujillo@gmail.com> (raw)
In-Reply-To: <1305734101_6569@mail4.comsite.net>
On Wednesday 18 May 2011 17:55:01 Milton Miller wrote:
> On Wed May 18 2011 about 10:37:54 EST, Stevie Trujillo wrote:
> > I then tried kexec+crashkernel, but I only managed to get a backtrace
> > for the last panic (which I think is just a result of memory corruption
> > or something). Finally I tried compiling ramoops into my kernel,
> > but it didn't want to load because of "No such device".
>
> For the kexec+crashkernel, try to retrieve the kernel log buffer:
>
> There are some macros available, but basically log_buf is a pointer
> to a buffer of length log_buf_len initialized to __log_buf (but can
> be expanded via the command line or sysctl, in). log_end is the
> end of the buffer. If you haven't wrapped then just print log_end
> characters.
Thank you! This worked perfectly. I sent it to linux-wireless now.
prev parent reply other threads:[~2011-05-18 16:29 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-05-18 14:37 Stevie Trujillo
2011-05-18 15:55 ` Milton Miller
2011-05-18 16:02 ` Américo Wang
2011-05-18 16:29 ` Stevie Trujillo [this message]
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