Copying Andrea. On Mon, Dec 17, 2012 at 10:14:47AM +0200, Kirill A. Shutemov wrote: > Hi, > > I've got this BUG on up-to-date Linus tree (aed606e): > > [ 1145.439071] BUG: MAX_LOCK_DEPTH too low! > [ 1145.439077] turning off the locking correctness validator. > [ 1145.439081] Pid: 4619, comm: kvm Not tainted 3.7.0-08682-gaed606e-dirty #166 > [ 1145.439084] Call Trace: > [ 1145.439094] [<ffffffff810e6094>] __lock_acquire.isra.24+0xc54/0xe10 > [ 1145.439099] [<ffffffff810e6873>] lock_acquire+0x93/0x140 > [ 1145.439106] [<ffffffff8117bfa8>] ? mm_take_all_locks+0x148/0x1b0 > [ 1145.439111] [<ffffffff8173d239>] down_write+0x49/0x90 > [ 1145.439115] [<ffffffff8117bfa8>] ? mm_take_all_locks+0x148/0x1b0 > [ 1145.439119] [<ffffffff8117bfa8>] mm_take_all_locks+0x148/0x1b0 > [ 1145.439124] [<ffffffff81192253>] ? do_mmu_notifier_register+0x153/0x180 > [ 1145.439128] [<ffffffff8119217f>] do_mmu_notifier_register+0x7f/0x180 > [ 1145.439132] [<ffffffff811922b3>] mmu_notifier_register+0x13/0x20 > [ 1145.439138] [<ffffffff81006036>] kvm_dev_ioctl+0x3e6/0x520 > [ 1145.439142] [<ffffffff810e40e8>] ? debug_check_no_locks_freed+0xd8/0x170 > [ 1145.439148] [<ffffffff811be6c7>] do_vfs_ioctl+0x97/0x540 > [ 1145.439152] [<ffffffff811bec01>] sys_ioctl+0x91/0xb0 > [ 1145.439158] [<ffffffff8132464e>] ? trace_hardirqs_on_thunk+0x3a/0x3f > [ 1145.439163] [<ffffffff817478c6>] system_call_fastpath+0x1a/0x1f > > -- > Kirill A. Shutemov -- Gleb. -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxx. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>