linux-kernel - Re: Sysrq+B doesn't work on my box

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]

Date:	Thu, 31 Jul 2008 17:50:58 +0400
From:	Alexey Dobriyan <adobriyan@...il.com>
To:	Zdenek Kabelac <zdenek.kabelac@...il.com>
Cc:	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: Sysrq+B doesn't work on my box

On Thu, Jul 31, 2008 at 03:45:24PM +0200, Zdenek Kabelac wrote:
> Hi
> 
> I'd like to get resolved this problem - my T61 machine doesn't reboot
> with SysRQ+B key.
> And I never remember if it was ever rebooting.
> 
> This is all I know so far and I've no idea where could be the problem.
> 
> System is running Fedora rawhide 64bit.
> 
> If I press any other  SysRQ combination - it works - so things like
> Sync, Umount, powerOff do work normally.
> It's just Boot  which does not even get to the  __handle  routine
> (I've added one extra simple debug prinkt
> for this case)
> 
> So - who/how/where could mask this key sequence from being delivered
> to the sysrq driver?
> (obviously I do not have any problems typing letter 'b' itself)
> 
> 
> 
> Another issue is - that even with  'echo b >/proc/sysrq-triggers' my
> machine doesn't reboot.

Typo here? Do

	/bin/echo b >/proc/sysrq-trigger

(sic)

--
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/