From mboxrd@z Thu Jan  1 00:00:00 1970
From: Johannes Weiner <hannes-druUgvl0LCNAfugRpC6u6w@public.gmane.org>
Subject: Re: [patch 0/7] improve memcg oom killer robustness v2
Date: Mon, 16 Sep 2013 11:17:26 -0400
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To: azurIt <azurit-Rm0zKEqwvD4@public.gmane.org>
Cc: Michal Hocko <mhocko-AlSwsSmVLrQ@public.gmane.org>, Andrew Morton <akpm-de/tnXTf+JLsfHDXvbKv3WD2FQJk+8+b@public.gmane.org>, David Rientjes <rientjes-hpIqsD4AKlfQT0dZR+AlfA@public.gmane.org>, KAMEZAWA Hiroyuki <kamezawa.hiroyu-+CUm20s59erQFUHtdCDX3A@public.gmane.org>, KOSAKI Motohiro <kosaki.motohiro-+CUm20s59erQFUHtdCDX3A@public.gmane.org>, linux-mm-Bw31MaZKKs3YtjvyW6yDsg@public.gmane.org, cgroups-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, x86-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org, linux-arch-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org

On Mon, Sep 16, 2013 at 05:05:43PM +0200, azurIt wrote:
> > CC: "Johannes Weiner" <hannes-druUgvl0LCNAfugRpC6u6w@public.gmane.org>, "Andrew Morton" <akpm-de/tnXTf+JLsfHDXvbKv3WD2FQJk+8+b@public.gmane.org>, "David Rientjes" <rientjes-hpIqsD4AKlfQT0dZR+AlfA@public.gmane.org>, "KAMEZAWA Hiroyuki" <kamezawa.hiroyu-+CUm20s59erQFUHtdCDX3A@public.gmane.org>, "KOSAKI Motohiro" <kosaki.motohiro-+CUm20s59erQFUHtdCDX3A@public.gmane.org>, linux-mm-Bw31MaZKKs3YtjvyW6yDsg@public.gmane.org, cgroups-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, x86-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org, linux-arch-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
> >On Mon 16-09-13 16:13:16, azurIt wrote:
> >[...]
> >> >You can use sysrq+l via serial console to see tasks hogging the CPU or
> >> >sysrq+t to see all the existing tasks.
> >> 
> >> 
> >> Doesn't work here, it just prints 'l' resp. 't'.
> >
> >I am using telnet for accessing my serial consoles exported by
> >the multiplicator or KVM and it can send sysrq via ctrl+t (Send
> >Break). Check your serial console setup.
> 
> 
> 
> I'm using Raritan KVM and i created keyboard macro 'sysrq + l' resp. 'sysrq + t'. I'm also unable to use it on my local PC. Maybe it needs to be enabled somehow?

Can you 'echo t >/proc/sysrq-trigger'?