From mboxrd@z Thu Jan 1 00:00:00 1970 From: Keir Fraser Subject: Re: kernel BUG at drivers/xen/blkback/blkback-pagemap.c:65! Date: Thu, 16 Jul 2009 18:01:29 +0100 Message-ID: References: <4A5F5308.5000406@theshore.net> Mime-Version: 1.0 Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <4A5F5308.5000406@theshore.net> List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Sender: xen-devel-bounces@lists.xensource.com Errors-To: xen-devel-bounces@lists.xensource.com To: "Christopher S. Aker" , xen devel Cc: Dutch Meyer , jake.wires@citrix.com List-Id: xen-devel@lists.xenproject.org I suggest you stick with the xen-3.4.0 tag in linux-2.6.18-xen.hg and see if that serves you better. This particular bug may have been introduced by the blktap2 additions (at least the BUG() is in a file which that patch introduces). Cc'ed the blktap2 guys. -- Keir On 16/07/2009 17:19, "Christopher S. Aker" wrote: > Xen 3.3-testing @ changeset 18651, 64bit > dom0 2.6.18.8 @ changeset 888, PAE > > Files: http://theshore.net/~caker/xen/BUGS/1.22/ > > clearing empty pagemap 311 > ------------[ cut here ]------------ > kernel BUG at drivers/xen/blkback/blkback-pagemap.c:65! > invalid opcode: 0000 [#1] > SMP > Modules linked in: e1000e e1000 > CPU: 0 > EIP: 0061:[] Not tainted VLI > EFLAGS: 00010292 (2.6.18.8-888-1 #1) > EIP is at blkback_pagemap_clear+0x57/0xa0 > eax: 0000001e ebx: 00000137 ecx: 00000000 edx: fdb4e000 > esi: d24f4ea0 edi: c0691a14 ebp: d24f4e94 esp: cdc0fbd4 > ds: 007b es: 007b ss: 0069 > Process blkback.166.xvd (pid: 30401, ti=cdc0e000 task=cb028570 > task.ti=cdc0e000) > Stack: c05441a0 00000137 00000003 d23463f0 00000002 0000023e c038e00d > cdc0fbf8 > 00000135 d2b65000 00000000 00000000 00000000 00000010 00000000 > d2b66000 > 00000000 00000000 00000000 0000037b 00003b18 00005617 00000000 > 00000000 > Call Trace: > [] fast_flush_area+0xad/0x130 > [] dm_request+0xc4/0xf0 > [] generic_make_request+0x173/0x210 > [] evtchn_do_upcall+0x10a/0x200 > [] submit_bio+0x69/0x120 > [] bio_add_page+0x37/0x50 > [] dispatch_rw_block_io+0x1fd/0x730 > [] schedule+0x33c/0xa00 > [] elv_next_request+0x12a/0x220 > [] __generic_unplug_device+0x33/0x40 > [] generic_unplug_device+0x15/0x50 > [] dm_table_unplug_all+0x2a/0x40 > [] blkif_schedule+0xb3/0x620 > [] schedule+0x33c/0xa00 > [] blkif_schedule+0x0/0x620 > [] kthread+0xc2/0x100 > [] kthread+0x0/0x100 > [] kernel_thread_helper+0x5/0x10 > Code: 1a 69 c0 7d 4d 8d 04 5b bf 08 1a 69 c0 8d 2c 82 b9 0c 00 00 00 89 > ee f3 a6 75 18 89 5c 24 04 c7 04 24 a0 41 54 c0 e8 f9 13 d9 ff <0f> 0b > 41 00 50 65 55 c0 b9 03 00 00 00 89 ef 31 c0 f3 ab 8b 5c > EIP: [] blkback_pagemap_clear+0x57/0xa0 SS:ESP 0069:cdc0fbd4 > > -Chris > > > _______________________________________________ > Xen-devel mailing list > Xen-devel@lists.xensource.com > http://lists.xensource.com/xen-devel