On 2011.12.21 at 00:54 +0100, Rafael J. Wysocki wrote:
Subject : WARNING: at fs/sysfs/sysfs.h:195 (during boot) Submitter : Markus Trippelsdorf markus-xp2qqqlHh3xzoYq+O6RWwA@public.gmane.org Date : 2011-11-13 19:24 Message-ID : 20111113192417.GA1659-tLCgZGx+iJ+kxVt8IV0GqQ@public.gmane.org References : http://marc.info/?l=linux-kernel&m=132121231921932&w=2
Subject : WARNING: at mm/slub.c:3357, kernel BUG at mm/slub.c:3413 Submitter : Markus Trippelsdorf markus-xp2qqqlHh3xzoYq+O6RWwA@public.gmane.org Date : 2011-11-18 7:25 Message-ID : 20111118072519.GA1615-tLCgZGx+iJ+kxVt8IV0GqQ@public.gmane.org References : http://marc.info/?l=linux-kernel&m=132160119031794&w=2
Both entries were caused by the same Radeon kexec writeback bug. This issue will hopefully be fixed in the next release.
Subject : Impossible high cpu-time values for migration threads Submitter : Markus Trippelsdorf markus-xp2qqqlHh3xzoYq+O6RWwA@public.gmane.org Date : 2011-11-17 22:17 Message-ID : 20111117221731.GA9229-tLCgZGx+iJ+kxVt8IV0GqQ@public.gmane.org References : http://marc.info/?l=linux-kernel&m=132156832124314&w=2
This is a cosmetic issue, but I'm still seeing this after bursts of high CPU usage:
% ps afx -F UID PID PPID C SZ RSS PSR STIME TTY STAT TIME CMD root 2 0 0 0 0 1 Dec20 ? S 0:00 [kthreadd] root 3 2 0 0 0 0 Dec20 ? S 0:01 _ [ksoftirqd/0] root 6 2 0 0 0 0 Dec20 ? S 0:00 _ [migration/0] root 7 2 0 0 0 1 Dec20 ? S 0:00 _ [migration/1] root 8 2 0 0 0 1 Dec20 ? S 0:05 _ [kworker/1:0] root 9 2 0 0 0 1 Dec20 ? S 0:01 _ [ksoftirqd/1] root 11 2 0 0 0 2 Dec20 ? S 0:00 _ [migration/2] root 13 2 0 0 0 2 Dec20 ? S 0:01 _ [ksoftirqd/2] root 14 2 22 0 0 3 Dec20 ? S 192:21 _ [migration/3] root 16 2 0 0 0 3 Dec20 ? S 0:01 _ [ksoftirqd/3] root 17 2 0 0 0 2 Dec20 ? S< 0:00 _ [khelper] ...