On Thu, Nov 19, 2015 at 08:39:06PM -0800, Dan Williams wrote: > On Thu, Nov 19, 2015 at 7:03 PM, Dave Chinner <david@xxxxxxxxxxxxx> wrote: > > On Thu, Nov 19, 2015 at 04:18:13PM -0800, Dan Williams wrote: > >> WARNING: CPU: 0 PID: 2133 at fs/fs-writeback.c:2065 __mark_inode_dirty+0x261/0x350() > >> bdi-block not registered > > ^^^^^^^^^^^^^^^^^^^^^^^^ > >> [..] > >> Call Trace: > >> [<ffffffff81459f62>] dump_stack+0x44/0x62 > >> [<ffffffff810a2052>] warn_slowpath_common+0x82/0xc0 > >> [<ffffffff810a20ec>] warn_slowpath_fmt+0x5c/0x80 > >> [<ffffffff812831a1>] __mark_inode_dirty+0x261/0x350 > >> [<ffffffff8126d109>] generic_update_time+0x79/0xd0 > >> [<ffffffff8126d28d>] file_update_time+0xbd/0x110 > >> [<ffffffff812e4bc8>] ext4_dax_fault+0x68/0x110 > >> [<ffffffff811f816e>] __do_fault+0x4e/0xf0 > >> [<ffffffff811fc2a7>] handle_mm_fault+0x5e7/0x1b50 > >> [<ffffffff811fbd11>] ? handle_mm_fault+0x51/0x1b50 > >> [<ffffffff810689c1>] __do_page_fault+0x191/0x3f0 > >> [<ffffffff81068cef>] trace_do_page_fault+0x4f/0x120 > >> [<ffffffff8106314a>] do_async_page_fault+0x1a/0xa0 > >> [<ffffffff81902678>] async_page_fault+0x28/0x30 > > > > Doesn't this indicate some problem at the block/bdi level? > > __mark_inode_dirty() should not throw warnings like this regardless > > of where it is called from... > > > > I'll look closer at how the xfs path avoids triggering this... XFS doesn't mark inodes dirty at the VFS level for inode metadata changes - dirty metadata is tracked by the journalling subsystem, not the VFS. Cheers, Dave. -- Dave Chinner david@xxxxxxxxxxxxx -- To unsubscribe from this list: send the line "unsubscribe linux-ext4" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
