From: Philippe Gerum <rpm@xenomai.org>
To: Luca Galvagno <luca.galvagno@colgp.it>, xenomai@xenomai.org
Subject: Re: [Xenomai] Linux scheduling is hijacked from xenomai scheduling
Date: Tue, 27 Jan 2015 12:24:27 +0100 [thread overview]
Message-ID: <54C7756B.6030604@xenomai.org> (raw)
In-Reply-To: <54C772AB.7010909@colgp.it>
On 01/27/2015 12:12 PM, Luca Galvagno wrote:
> Hi Philippe,
> we checked the kernel options you suggested and they are in line with
> what you said.
> When the system hangs we have the following log on console :
>
> [ 391.382182] Unable to handle kernel paging request for instruction fetch
> [ 391.462985] Faulting instruction address: 0x00000000
> [ 391.522787] Oops: Kernel access of bad area, sig: 11 [#1]
Well, bad news this is a crash, the CPU is jumping to some NULL handler
it seems. You may want to enable CONFIG_KALLSYMS and
CONFIG_DEBUG_BUGVERBOSE to get a backtrace with symbols.
CONFIG_DEBUG_INFO is desirable too when looking for routines in the
kernel assembly dump, and matching them to the source code.
--
Philippe.
next prev parent reply other threads:[~2015-01-27 11:24 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-01-27 9:56 [Xenomai] Linux scheduling is hijacked from xenomai scheduling Luca Galvagno
2015-01-27 10:23 ` Philippe Gerum
2015-01-27 10:32 ` Luca Galvagno
2015-01-27 10:42 ` Philippe Gerum
2015-01-27 11:12 ` Luca Galvagno
2015-01-27 11:24 ` Philippe Gerum [this message]
2015-01-27 14:51 ` Luca Galvagno
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=54C7756B.6030604@xenomai.org \
--to=rpm@xenomai.org \
--cc=luca.galvagno@colgp.it \
--cc=xenomai@xenomai.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.