On 14/12/18, Eric Paris wrote: > On Thu, 2014-12-18 at 11:45 -0500, valdis.kletni...@vt.edu wrote: > > On Tue, 16 Dec 2014 20:09:54 -0500, Valdis Kletnieks said: > > > Spotted these two while booting single-user on 20141216. 20141208 > > > doesn't throw these, so it's something in the last week or so.. > > > > Gaah! Turns out that 20141208 *is* susceptible - it had been booting > > just fine for several days, but it went around the bend, apparently due > > to a userspace or initrd change. > > $5 says you updated systemd? > > Richard?
Ok, so if you are correct, then either we justify dropping the lock (I assume the one commone to both BUG reports [sig->cred_guard_mutex] ), or we make yet another queue were were hoping to avoid... It would also be good to narrow it down to a rule that triggers this. > > egrep 'BUG|Linux vers' from my syslog: > > > > Dec 9 12:19:53 turing-police kernel: [ 0.000000] Linux version > > 3.18.0-next-20141208 (sou...@turing-police.cc.vt.edu) (gcc version 4.9.2 > > 20141101 (Red Hat 4.9.2-1) (GCC) ) #27 SMP PREEMPT Mon Dec 8 22:20:07 EST > > 2014 ... > > Dec 12 19:42:30 turing-police kernel: [ 0.000000] Linux version > > 3.18.0-next-20141208 (sou...@turing-police.cc.vt.edu) (gcc version 4.9.2 > > 20141101 (Red Hat 4.9.2-1) (GCC) ) #27 SMP PREEMPT Mon Dec 8 22:20:07 EST > > 2014 > > Dec 12 20:00:39 turing-police kernel: [ 1109.635328] BUG: sleeping function > > called from invalid context at mm/slab.c:2849 ... > > Dec 12 20:42:47 turing-police kernel: [ 3633.863552] BUG: sleeping function > > called from invalid context at mm/slab.c:2849 > > Dec 12 20:51:33 turing-police kernel: [ 0.000000] Linux version > > 3.18.0-next-20141208 (sou...@turing-police.cc.vt.edu) (gcc version 4.9.2 > > 20141101 (Red Hat 4.9.2-1) (GCC) ) #27 SMP PREEMPT Mon Dec 8 22:20:07 EST > > 2014 > > Dec 12 21:51:04 turing-police kernel: [ 3587.132867] BUG: sleeping function > > called from invalid context at mm/slab.c:2849 ... > > I need to figure out what changed around 7:30PM on the 12th. - RGB -- Richard Guy Briggs <rbri...@redhat.com> Senior Software Engineer, Kernel Security, AMER ENG Base Operating Systems, Red Hat Remote, Ottawa, Canada Voice: +1.647.777.2635, Internal: (81) 32635, Alt: +1.613.693.0684x3545 -- 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/
