> CC: "Johannes Weiner" <hannes@xxxxxxxxxxx>, "Andrew Morton" <akpm@xxxxxxxxxxxxxxxxxxxx>, "David Rientjes" <rientjes@xxxxxxxxxx>, "KAMEZAWA Hiroyuki" <kamezawa.hiroyu@xxxxxxxxxxxxxx>, "KOSAKI Motohiro" <kosaki.motohiro@xxxxxxxxxxxxxx>, linux-mm@xxxxxxxxx, cgroups@xxxxxxxxxxxxxxx, x86@xxxxxxxxxx, linux-arch@xxxxxxxxxxxxxxx, linux-kernel@xxxxxxxxxxxxxxx >On Mon 16-09-13 17:05:43, azurIt wrote: >> > CC: "Johannes Weiner" <hannes@xxxxxxxxxxx>, "Andrew Morton" <akpm@xxxxxxxxxxxxxxxxxxxx>, "David Rientjes" <rientjes@xxxxxxxxxx>, "KAMEZAWA Hiroyuki" <kamezawa.hiroyu@xxxxxxxxxxxxxx>, "KOSAKI Motohiro" <kosaki.motohiro@xxxxxxxxxxxxxx>, linux-mm@xxxxxxxxx, cgroups@xxxxxxxxxxxxxxx, x86@xxxxxxxxxx, linux-arch@xxxxxxxxxxxxxxx, linux-kernel@xxxxxxxxxxxxxxx >> >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? > >Probably yes. echo 1 > /proc/sys/kernel/sysrq should enable all sysrq >commands. You can select also some of them (have a look at >Documentation/sysrq.txt for more information) # ls -la /proc/sys/kernel/sysrq ls: cannot access /proc/sys/kernel/sysrq: No such file or directory ok, so problem is probably here: # CONFIG_MAGIC_SYSRQ is not set I will enable it with next reboot. azur -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxx. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>