Jun'ichi Nomura a écrit : >>> On Sat, 16 Jan 2010 10:58:30 +0100 >>> Fran__ois Figarola <francois.figarola@xxxxxxxxxxxx> wrote: >>> >>>> Since I've tried to boot 2.6.32.x kernel, my system hangs during the >>>> boot process, and I think it could be related to the problem reported >>>> earlier by Megastorage (http://lkml.org/lkml/2010/1/10/92). >>>> >>>> The hardware is a Dell PowerEdge 2950 which runs fine with the >>>> 2.6.31.x kernel series (actually running with the latest 2.6.31.11), >>>> and the system is debian etch. >>>> >>>> Here is the trace of the bug I've got (using netconsole) with a >>>> 2.6.32.3 kernel : >>>> >>>> BUG: Dentry ffff880667690000{i=41a46,n=sleep} still in use (8) >>>> [unmount of ext3 dm-4] >>>> ------------[ cut here ]------------ >>>> kernel BUG at fs/dcache.c:670! >>>> > > I can reproduce this when suspend/resume read-only mounted dm device. > > When MS_RDONLY, both freeze_bdev and thaw_bdev call deactivate_locked_super, > which seems wrong. The change was introduced with the commit below: > > commit 4504230a71566785a05d3e6b53fa1ee071b864eb > Author: Christoph Hellwig <hch@xxxxxx> > Date: Mon Aug 3 23:28:35 2009 +0200 > > freeze_bdev: grab active reference to frozen superblocks > > With the attached patch, both remount-ro and remount-rw are > rejected as EBUSY on freezed device as expected. > > Christoph, do you think this is the right fix? > > With the fix from Jun'ichi Nomura, a 2.6.32.5 kernel boots now correctly. Thanks. -- To unsubscribe from this list: send the line "unsubscribe linux-raid" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
