At a 32 bit Gentoo Linux I get with 3.18.5 the following syslog message: Feb 4 22:09:36 n22 kernel: INFO: trying to register non-static key. Feb 4 22:09:36 n22 kernel: the code is fine but needs lockdep annotation. Feb 4 22:09:36 n22 kernel: turning off the locking correctness validator. Feb 4 22:09:36 n22 kernel: CPU: 0 PID: 2341 Comm: btrfs-cleaner Tainted: G U 3.18.5 #1 Feb 4 22:09:36 n22 kernel: Hardware name: LENOVO 4180F65/4180F65, BIOS 83ET75WW (1.45 ) 05/10/2013 Feb 4 22:09:36 n22 kernel: 00000000 00000000 f04e5db0 c141af35 00000000 f04e5dbc c14188ae c1558ba4 Feb 4 22:09:36 n22 kernel: f04e5df8 c107ce56 00000000 00000000 f8438888 00000000 00000246 00000000 Feb 4 22:09:36 n22 kernel: f0e5c78c e1773150 00000000 e76c3a94 e76c3a94 00000246 00000000 f04e5e2c Feb 4 22:09:36 n22 kernel: Call Trace: Feb 4 22:09:36 n22 kernel: [<c141af35>] dump_stack+0x41/0x52 Feb 4 22:09:36 n22 kernel: [<c14188ae>] register_lock_class.part.22+0x32/0x36 Feb 4 22:09:36 n22 kernel: [<c107ce56>] __lock_acquire.isra.29+0x8e6/0x910 Feb 4 22:09:36 n22 kernel: [<f8438888>] ? btrfs_remove_chunk+0x2d8/0x810 [btrfs] Feb 4 22:09:36 n22 kernel: [<c107d4b5>] lock_acquire+0x75/0xe0 Feb 4 22:09:36 n22 kernel: [<f83fad9d>] ? btrfs_delete_unused_bgs+0x22d/0x260 [btrfs] Feb 4 22:09:36 n22 kernel: [<f84388d6>] btrfs_remove_chunk+0x326/0x810 [btrfs] Feb 4 22:09:36 n22 kernel: [<f83fad9d>] ? btrfs_delete_unused_bgs+0x22d/0x260 [btrfs] Feb 4 22:09:36 n22 kernel: [<f8429f94>] ? free_extent_state.part.31+0x34/0x80 [btrfs] Feb 4 22:09:36 n22 kernel: [<f83fad9d>] btrfs_delete_unused_bgs+0x22d/0x260 [btrfs] Feb 4 22:09:36 n22 kernel: [<f8402952>] cleaner_kthread+0x132/0x180 [btrfs] Feb 4 22:09:36 n22 kernel: [<f8402820>] ? btree_releasepage+0x40/0x40 [btrfs] Feb 4 22:09:36 n22 kernel: [<c105b656>] kthread+0xa6/0xc0 Feb 4 22:09:36 n22 kernel: [<c1421a81>] ret_from_kernel_thread+0x21/0x30 Feb 4 22:09:36 n22 kernel: [<c105b5b0>] ? kthread_create_on_node+0x180/0x180
With the 3.17 series this was not observed AFAICT. -- Toralf pgp key: 7B1A 07F4 EC82 0F90 D4C2 8936 872A E508 0076 E94E -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
