I've been running into this on 10.4, initially thought it was due to #480849 as my share was on a dmcrypt'd volume but this morning it did it again after I had converted the volume to a non encrypted setup. My serial console is only spitting out the kernel crash info, box is hung badly enough that I cannot get a login to gather debug info.
[80989.130032] BUG: soft lockup - CPU#0 stuck for 61s! [smbd:14757] [80989.136729] Modules linked in: nfsd exportfs nfs lockd nfs_acl auth_rpcgss cryptd aes_x86_64 aes_generic dm_crypt sunrpc lp parport usbhid hid fbcon tileblit font bitblit softcursor ahci vga16fb vgastate tg3 cciss [80989.158177] CPU 0: [80989.160429] Modules linked in: nfsd exportfs nfs lockd nfs_acl auth_rpcgss cryptd aes_x86_64 aes_generic dm_crypt sunrpc lp parport usbhid hid fbcon tileblit font bitblit softcursor ahci vga16fb vgastate tg3 cciss [80989.181887] Pid: 14757, comm: smbd Tainted: G D 2.6.32-22-server #36-Ubuntu ProLiant DL120 G6 [80989.192165] RIP: 0010:[<ffffffff81039724>] [<ffffffff81039724>] __ticket_spin_lock+0x14/0x20 [80989.201689] RSP: 0018:ffff880037863498 EFLAGS: 00000297 [80989.207609] RAX: 0000000000000a09 RBX: ffff880037863498 RCX: 0000000000000007 [80989.215562] RDX: 0000000001137aa2 RSI: ffff88006e7eccc0 RDI: ffff88006e7ecf88 [80989.223515] RBP: ffffffff81013b0e R08: ffff880037863658 R09: 0000000000000000 [80989.231458] R10: ffffea00012c7830 R11: 0000000000000003 R12: ffff88000000002a [80989.239412] R13: ffff88002eef6990 R14: 0000000100000037 R15: ffff880101aab8e0 [80989.247367] FS: 00007f56208d4720(0000) GS:ffff880005600000(0000) knlGS:0000000000000000 [80989.256386] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b [80989.262790] CR2: 00007f56208e6000 CR3: 000000006be32000 CR4: 00000000000006f0 [80989.270733] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [80989.278687] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 [80989.286641] Call Trace: [80989.289363] [<ffffffff8155749e>] ? _spin_lock+0xe/0x20 [80989.295192] [<ffffffff81200a06>] ? ext4_ext_get_blocks+0x66/0x620 [80989.302084] [<ffffffff810f3577>] ? unlock_page+0x27/0x30 [80989.308105] [<ffffffff8116dee0>] ? __block_write_full_page+0x1f0/0x3c0 [80989.315480] [<ffffffff815573e5>] ? _spin_lock_irq+0x15/0x20 [80989.321789] [<ffffffff815572db>] ? __down_read+0xbb/0xc6 [80989.327810] [<ffffffff811de8ea>] ? ext4_get_blocks+0x7a/0x2d0 [80989.334312] [<ffffffff810f3577>] ? unlock_page+0x27/0x30 [80989.340330] [<ffffffff811df5fc>] ? mpage_da_map_blocks+0xac/0x390 [80989.347222] [<ffffffff812b5db5>] ? radix_tree_gang_lookup_tag_slot+0x95/0xe0 [80989.355178] [<ffffffff811dff2b>] ? mpage_add_bh_to_extent+0x3b/0xd0 [80989.362262] [<ffffffff8110c7e5>] ? __dec_zone_page_state+0x35/0x40 [80989.369248] [<ffffffff811e00ed>] ? __mpage_da_writepage+0x12d/0x1a0 [80989.376333] [<ffffffff810fc8cf>] ? write_cache_pages+0x21f/0x4d0 [80989.383127] [<ffffffff811dffc0>] ? __mpage_da_writepage+0x0/0x1a0 [80989.390018] [<ffffffff811dfb89>] ? ext4_da_writepages+0x2a9/0x610 [80989.396910] [<ffffffff8101178c>] ? __switch_to+0x1ac/0x320 [80989.403125] [<ffffffff810fcbd1>] ? do_writepages+0x21/0x40 [80989.409338] [<ffffffff811655b6>] ? writeback_single_inode+0xf6/0x3d0 [80989.416519] [<ffffffff81166220>] ? writeback_inodes_wb+0x410/0x5e0 [80989.423506] [<ffffffff811665db>] ? writeback_inodes_wbc+0x1b/0x20 [80989.430396] [<ffffffff810fc0fc>] ? balance_dirty_pages+0x1fc/0x360 [80989.437384] [<ffffffff810fc2c4>] ? balance_dirty_pages_ratelimited_nr+0x64/0x70 [80989.445629] [<ffffffff810f2c51>] ? generic_perform_write+0x161/0x1d0 [80989.452811] [<ffffffff8120d1b0>] ? ext4_xattr_get+0x60/0xa0 [80989.459121] [<ffffffff810f3d43>] ? generic_file_buffered_write+0x73/0xd0 [80989.466690] [<ffffffff810f5330>] ? __generic_file_aio_write+0x240/0x470 [80989.474163] [<ffffffff81460d99>] ? sock_aio_read+0x159/0x160 [80989.480568] [<ffffffff81460af0>] ? sock_aio_write+0x0/0x150 [80989.486878] [<ffffffff810f55cf>] ? generic_file_aio_write+0x6f/0xe0 [80989.493964] [<ffffffff811d70b9>] ? ext4_file_write+0x39/0xb0 [80989.500370] [<ffffffff8114311a>] ? do_sync_write+0xfa/0x140 [80989.506682] [<ffffffff81084fa0>] ? autoremove_wake_function+0x0/0x40 [80989.513865] [<ffffffff8108f639>] ? ktime_get_ts+0xa9/0xe0 [80989.519984] [<ffffffff81250956>] ? security_file_permission+0x16/0x20 [80989.527262] [<ffffffff81143418>] ? vfs_write+0xb8/0x1a0 [80989.533186] [<ffffffff81143db2>] ? sys_pwrite64+0x82/0xa0 [80989.539304] [<ffffffff810131b2>] ? system_call_fastpath+0x16/0x1b [81020.269141] BUG: soft lockup - CPU#6 stuck for 61s! [smbd:15052] [81020.275838] Modules linked in: nfsd exportfs nfs lockd nfs_acl auth_rpcgss cryptd aes_x86_64 aes_generic dm_crypt sunrpc lp parport usbhid hid fbcon tileblit font bitblit softcursor ahci vga16fb vgastate tg3 cciss [81020.297286] CPU 6: [81020.299540] Modules linked in: nfsd exportfs nfs lockd nfs_acl auth_rpcgss cryptd aes_x86_64 aes_generic dm_crypt sunrpc lp parport usbhid hid fbcon tileblit font bitblit softcursor ahci vga16fb vgastate tg3 cciss [81020.320992] Pid: 15052, comm: smbd Tainted: G D 2.6.32-22-server #36-Ubuntu ProLiant DL120 G6 [81020.331268] RIP: 0010:[<ffffffff81039724>] [<ffffffff81039724>] __ticket_spin_lock+0x14/0x20 [81020.340790] RSP: 0018:ffff880129181e18 EFLAGS: 00000293 [81020.346711] RAX: 0000000000000b09 RBX: ffff880129181e18 RCX: 000000000000000c [81020.354665] RDX: ffff880129181ef8 RSI: ffff880129181ef8 RDI: ffff88006e7ecf88 [81020.362618] RBP: ffffffff81013cae R08: 0000000000000000 R09: ffff880125fdd400 [81020.370573] R10: 000000000000000d R11: 0000000000001000 R12: ffff880129181dd8 [81020.378527] R13: 00007f5622a73610 R14: ffff880059764b40 R15: ffff88013388a900 [81020.386482] FS: 00007f56208d4720(0000) GS:ffff880005780000(0000) knlGS:0000000000000000 [81020.395499] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [81020.401906] CR2: 00007f5620eb5d50 CR3: 00000001340cb000 CR4: 00000000000006e0 [81020.409860] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [81020.417814] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 [81020.425765] Call Trace: [81020.428498] [<ffffffff8155749e>] ? _spin_lock+0xe/0x20 [81020.434316] [<ffffffff811da31a>] ? ext4_getattr+0x4a/0x90 [81020.440435] [<ffffffff81147b41>] ? vfs_getattr+0x51/0x80 [81020.446454] [<ffffffff81147bd0>] ? vfs_fstatat+0x60/0x80 [81020.452474] [<ffffffff81147d1b>] ? vfs_stat+0x1b/0x20 [81020.458205] [<ffffffff81147d44>] ? sys_newstat+0x24/0x50 [81020.464227] [<ffffffff810131b2>] ? system_call_fastpath+0x16/0x1b [81022.414751] BUG: soft lockup - CPU#5 stuck for 61s! [smbd:15070] [81022.421446] Modules linked in: nfsd exportfs nfs lockd nfs_acl auth_rpcgss cryptd aes_x86_64 aes_generic dm_crypt sunrpc lp parport usbhid hid fbcon tileblit font bitblit softcursor ahci vga16fb vgastate tg3 cciss [81022.442900] CPU 5: [81022.445144] Modules linked in: nfsd exportfs nfs lockd nfs_acl auth_rpcgss cryptd aes_x86_64 aes_generic dm_crypt sunrpc lp parport usbhid hid fbcon tileblit font bitblit softcursor ahci vga16fb vgastate tg3 cciss [81022.466598] Pid: 15070, comm: smbd Tainted: G D 2.6.32-22-server #36-Ubuntu ProLiant DL120 G6 [81022.476876] RIP: 0010:[<ffffffff81039724>] [<ffffffff81039724>] __ticket_spin_lock+0x14/0x20 [81022.486397] RSP: 0018:ffff880082135e18 EFLAGS: 00000293 [81022.492319] RAX: 0000000000000c09 RBX: ffff880082135e18 RCX: 000000000000000c [81022.500272] RDX: ffff880082135ef8 RSI: ffff880082135ef8 RDI: ffff88006e7ecf88 [81022.508218] RBP: ffffffff81013cae R08: 0000000000000000 R09: 0000000000001000 [81022.516173] R10: 00007f5622a737b0 R11: 0000000000000246 R12: ffff880082135dd8 [81022.524127] R13: 00007f5622a736c0 R14: ffff880059764b40 R15: ffff88013388a900 [81022.532081] FS: 00007f56208d4720(0000) GS:ffff880005740000(0000) knlGS:0000000000000000 [81022.541099] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [81022.547493] CR2: 00007f5620eb5d50 CR3: 000000008acd4000 CR4: 00000000000006e0 [81022.555448] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [81022.563402] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 [81022.571356] Call Trace: [81022.574081] [<ffffffff8155749e>] ? _spin_lock+0xe/0x20 [81022.579898] [<ffffffff811da31a>] ? ext4_getattr+0x4a/0x90 [81022.586018] [<ffffffff81147b41>] ? vfs_getattr+0x51/0x80 [81022.592037] [<ffffffff81147bd0>] ? vfs_fstatat+0x60/0x80 [81022.598056] [<ffffffff81147d1b>] ? vfs_stat+0x1b/0x20 [81022.603787] [<ffffffff81147d44>] ? sys_newstat+0x24/0x50 [81022.609808] [<ffffffff810131b2>] ? system_call_fastpath+0x16/0x1b That error repeats every few seconds. ** Changed in: linux (Ubuntu) Status: Expired => New -- BUG: soft lockup - CPU#1 stuck for 61s! [smbd:15087] https://bugs.launchpad.net/bugs/474089 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs