> CC: "Johannes Weiner" <han...@cmpxchg.org>, "Andrew Morton" > <a...@linux-foundation.org>, "David Rientjes" <rient...@google.com>, > "KAMEZAWA Hiroyuki" <kamezawa.hir...@jp.fujitsu.com>, "KOSAKI Motohiro" > <kosaki.motoh...@jp.fujitsu.com>, linux...@kvack.org, > cgro...@vger.kernel.org, x...@kernel.org, linux-a...@vger.kernel.org, > linux-kernel@vger.kernel.org >On Mon 16-09-13 16:01:19, azurIt wrote: >> > CC: "Johannes Weiner" <han...@cmpxchg.org>, "Andrew Morton" >> > <a...@linux-foundation.org>, "David Rientjes" <rient...@google.com>, >> > "KAMEZAWA Hiroyuki" <kamezawa.hir...@jp.fujitsu.com>, "KOSAKI Motohiro" >> > <kosaki.motoh...@jp.fujitsu.com>, linux...@kvack.org, >> > cgro...@vger.kernel.org, x...@kernel.org, linux-a...@vger.kernel.org, >> > linux-kernel@vger.kernel.org >> >On Sat 14-09-13 12:48:31, azurIt wrote: >> >[...] >> >> Here is the first occurence, this night between 5:15 and 5:25: >> >> - this time i kept opened terminal from other server to this problematic >> >> one with htop running >> >> - when server went down i opened it and saw one process of one user >> >> running at the top and taking 97% of CPU (cgroup 1304) >> > >> >I guess you do not have a stack trace(s) for that process? That would be >> >extremely helpful. >> >> I'm afraid it won't be possible as server is completely not responding >> when it happens. Anyway, i don't think it was a fault of one process >> or one user. > >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'. azur -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
