Hi! I'd like you to have a look into this issue: pm-hibernate locks up when using xfs while "Preallocating image memory". https://bugzilla.kernel.org/show_bug.cgi?id=33622 I got at least this backtrace (2.6.39.3) tia chris SysRq : Show Blocked State pm-hibernate D 0000000000000000 0 3638 3637 0x00000000 ffff8800017bf918 0000000000000082 ffff8800017be010 ffff880000000000 ffff8800017be010 ffff88000b8a6170 0000000000013900 ffff8800017bffd8 ffff8800017bffd8 0000000000013900 ffffffff8148b020 ffff88000b8a6170 Call Trace: [<ffffffff81344ce2>] schedule_timeout+0x22/0xbb [<ffffffff81344b64>] wait_for_common+0xcb/0x148 [<ffffffff810408ea>] ? try_to_wake_up+0x18c/0x18c [<ffffffff81345527>] ? down_write+0x2d/0x31 [<ffffffff81344c7b>] wait_for_completion+0x18/0x1a [<ffffffffa02374da>] xfs_reclaim_inode+0x74/0x258 [xfs] [<ffffffffa0237853>] xfs_reclaim_inodes_ag+0x195/0x264 [xfs] [<ffffffffa0237974>] xfs_reclaim_inode_shrink+0x52/0x90 [xfs] [<ffffffff810c4e21>] shrink_slab+0xdb/0x151 [<ffffffff810c625a>] do_try_to_free_pages+0x204/0x39a [<ffffffff8134ce4e>] ? apic_timer_interrupt+0xe/0x20 [<ffffffff810c647f>] shrink_all_memory+0x8f/0xa8 [<ffffffff810cc41a>] ? next_online_pgdat+0x20/0x41 [<ffffffff8107937d>] hibernate_preallocate_memory+0x1c4/0x30f [<ffffffff811a8fa2>] ? kobject_put+0x47/0x4b [<ffffffff81077eb2>] hibernation_snapshot+0x45/0x281 [<ffffffff810781bf>] hibernate+0xd1/0x1b8 [<ffffffff81076c58>] state_store+0x57/0xce [<ffffffff811a8d0b>] kobj_attr_store+0x17/0x19 [<ffffffff81152bda>] sysfs_write_file+0xfc/0x138 [<ffffffff810fca74>] vfs_write+0xa9/0x105 [<ffffffff810fcb89>] sys_write+0x45/0x6c [<ffffffff8134c492>] system_call_fastpath+0x16/0x1b kworker/0:2 D 0000000000000000 0 379 2 0x00000000 ffff88000ea99b90 0000000000000046 ffff88000b8ff840 0000000000000000 ffff88000ea98010 ffff88000c319ac0 0000000000013900 ffff88000ea99fd8 ffff88000ea99fd8 0000000000013900 ffffffff8148b020 ffff88000c319ac0 Call Trace: [<ffffffff8134515f>] __mutex_lock_common+0x12e/0x195 [<ffffffff813451da>] __mutex_lock_slowpath+0x14/0x16 [<ffffffff813452a8>] mutex_lock+0x1e/0x38 [<ffffffffa0237738>] xfs_reclaim_inodes_ag+0x7a/0x264 [xfs] [<ffffffffa02379cc>] ? xfs_reclaim_inodes+0x1a/0x1a [xfs] [<ffffffffa02379ca>] xfs_reclaim_inodes+0x18/0x1a [xfs] [<ffffffffa02379e9>] xfs_reclaim_worker+0x1d/0x29 [xfs] [<ffffffff81059ec4>] process_one_work+0x1de/0x2ec [<ffffffff8105bf60>] worker_thread+0x13d/0x262 [<ffffffff8105be23>] ? manage_workers+0x194/0x194 [<ffffffff8105f25a>] kthread+0x7d/0x85 [<ffffffff8134d5a4>] kernel_thread_helper+0x4/0x10 [<ffffffff8105f1dd>] ? kthread_worker_fn+0x148/0x148 [<ffffffff8134d5a0>] ? gs_change+0x13/0x13 _______________________________________________ xfs mailing list xfs@xxxxxxxxxxx http://oss.sgi.com/mailman/listinfo/xfs