From mboxrd@z Thu Jan 1 00:00:00 1970 From: Ross Anderson Subject: Kernel Panic 3.13 Date: Mon, 27 Jan 2014 06:50:29 -0600 Message-ID: <52E65615.4050308@dsotm.net> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Return-path: Received: from smtprelay0014.b.hostedemail.com ([64.98.42.14]:46741 "EHLO smtprelay.b.hostedemail.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1751431AbaA0M7k (ORCPT ); Mon, 27 Jan 2014 07:59:40 -0500 Received: from smtprelay.b.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by smtpgrave02.b.hostedemail.com (Postfix) with ESMTP id B62B113E8DA for ; Mon, 27 Jan 2014 12:49:25 +0000 (UTC) Received: from filter.hostedemail.com (b-bigip1 [10.5.19.254]) by smtprelay01.b.hostedemail.com (Postfix) with ESMTP id D352F2D2B5E for ; Mon, 27 Jan 2014 12:49:14 +0000 (UTC) Received: from [192.168.2.200] (c-24-118-251-104.hsd1.mn.comcast.net [24.118.251.104]) (Authenticated sender: rosander@dsotm.net) by omf07.b.hostedemail.com (Postfix) with ESMTPA for ; Mon, 27 Jan 2014 12:49:14 +0000 (UTC) Sender: linux-bcache-owner@vger.kernel.org List-Id: linux-bcache@vger.kernel.org To: linux-bcache@vger.kernel.org Greetings, The following kernel panic occured on a new 3.13 kernel version running SCST on top of bcache. Gcc x86_64-pc-linux-gnu-4.7.3 The system has been running version 3.11.6 and 3.12.2 for sometime without errors. [365057.392767] ------------[ cut here ]------------ [365057.392855] kernel BUG at drivers/md/bcache/btree.c:1168! [365057.392943] invalid opcode: 0000 [#1] SMP [365057.393018] Modules linked in: zfs(PO) zunicode(PO) zavl(PO) zcommon(PO) znvpair(PO) spl(O) qla2x00tgt(O) w83792d w83627hf hwmon_vid qla2xxx iscsi_scst(O) scst_vdisk(O) scst(O) ipv6 p4_clockmod speedstep_lib e1000e ptp e100 mii pps_core coretemp snd_ca0106 snd_ac97_codec ac97_bus snd_rawmidi arcmsr(O) [last unloaded: zfs] [365057.393797] CPU: 4 PID: 2269 Comm: bcache_gc Tainted: P O 3.13.0 #1 [365057.393900] Hardware name: Supermicro X7DVL/X7DVL, BIOS 2.1a 12/20/2008 [365057.394000] task: ffff88041cc38050 ti: ffff880418d62000 task.ti: ffff880418d62000 [365057.394115] RIP: 0010:[] [] __bch_btree_mark_key+0x263/0x2a0 [365057.394271] RSP: 0018:ffff880418d63ca8 EFLAGS: 00010246 [365057.394354] RAX: 0000000000000002 RBX: 0000000000000000 RCX: 0000000000001e00 [365057.394456] RDX: 0000000000000002 RSI: 0000000000000001 RDI: 0000000000000000 [365057.394559] RBP: ffff880419700578 R08: ffffc90002f75b28 R09: 0000000000003fff [365057.394662] R10: 0000001000000000 R11: 0000000000000001 R12: ffff8800cb1e0000 [365057.394765] R13: 0000000000000000 R14: 000007ffffffffff R15: 0000000000000001 [365057.394869] FS: 0000000000000000(0000) GS:ffff88042fd00000(0000) knlGS:0000000000000000 [365057.394991] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b [365057.395074] CR2: 00007ffecbebb000 CR3: 0000000416871000 CR4: 00000000000007e0 [365057.395177] Stack: [365057.395218] ffff88041b567800 ffff880418d63d18 ffffffff81668880 ffff880419700578 [365057.395380] ffff880418d63d18 ffff88041b567800 ffff880418d63dd8 0000000000000001 [365057.395542] 0000000000000039 0000000000000000 ffff880419700578 ffffffff8166c462 [365057.395705] Call Trace: [365057.395750] [] ? bch_cache_allocator_init+0x70/0x70 [365057.395848] [] ? btree_gc_mark_node+0x72/0x1e0 [365057.395947] [] ? call_rwsem_down_write_failed+0x13/0x20 [365057.396057] [] ? bch_btree_gc+0x1bd/0x4c0 [365057.396137] [] ? try_to_wake_up+0x1e5/0x280 [365057.396226] [] ? bch_gc_thread+0x28/0xf0 [365057.396318] [] ? bch_btree_gc+0x4c0/0x4c0 [365057.396398] [] ? kthread+0xbc/0xe0 [365057.396473] [] ? __kthread_parkme+0x70/0x70 [365057.396563] [] ? ret_from_fork+0x7c/0xb0 [365057.396655] [] ? __kthread_parkme+0x70/0x70 [365057.396742] Code: 89 4c 24 10 4c 89 54 24 08 e8 9a ff 00 00 4c 8b 44 24 18 84 c0 44 8b 4c 24 10 4c 8b 54 24 08 75 0c 41 0f b7 40 0a e9 c5 fe ff ff <0f> 0b 4c 89 44 24 18 44 89 4c 24 10 4c 89 54 24 08 e8 73 bc 1b [365057.397528] RIP [] __bch_btree_mark_key+0x263/0x2a0 [365057.397640] RSP [365057.422535] ---[ end trace 0677b5ad54c8ddaa ]--- thanks,