On Friday, July 09, 2010, Andrew Hendry wrote: > It might not be a regression, and so far i haven't been able to reproduce. > Its seems to be related to suspend/resume interface up/down and mount/unmount. > Also potentially with cifs waiting for a NAS to spinup to complete mount. OK, so I'm going to close it for now. Please let me know if you can reproduce it. Also I think it's not a regression. Rafael > On Fri, Jul 9, 2010 at 10:49 AM, Jeff Layton <jlayton@xxxxxxxxxx> wrote: > > On Fri, 9 Jul 2010 01:41:39 +0200 (CEST) > > "Rafael J. Wysocki" <rjw@xxxxxxx> wrote: > > > >> This message has been generated automatically as a part of a summary report > >> of recent regressions. > >> > >> The following bug entry is on the current list of known regressions > >> from 2.6.34. Please verify if it still should be listed and let the tracking team > >> know (either way). > >> > >> > >> Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=16306 > >> Subject : 2.6.35-rc3 BUG: unable to handle kernel NULL pointer dereference at 0000000000000048 cifs_show_options > >> Submitter : Andrew Hendry <andrew.hendry@xxxxxxxxx> > >> Date : 2010-06-26 10:46 (13 days old) > >> Message-ID : <AANLkTilhTrEBYZd4HxeXQk8B6-yV8rCJ2C0jXsEREgIR@xxxxxxxxxxxxxx> > >> References : http://marc.info/?l=linux-kernel&m=127754922110501&w=2 > >> Handled-By : Jeff Layton <jlayton@xxxxxxxxxx> > >> > >> > > > > Not sure if this is a new bug or not... > > > > I don't think this is really a CIFS bug, per-se. It seems like the > > problem may be that the iterator for /proc/pid/mountinfo is not > > sufficiently protected against removal from the vfsmount list. > > > > Filesystems don't seem to be expected to do any locking in their > > show_options routines though so I'm guessing that something is borked > > in the generic vfs layer. > > > > Either that or this is some sort of generic mem corruption? I'm open to > > input from others that have a better grasp of this stuff at the VFS > > layer... > > > > -- > > Jeff Layton <jlayton@xxxxxxxxxx> > > > > -- To unsubscribe from this list: send the line "unsubscribe kernel-testers" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
