Messages in this thread | | | Date | Mon, 15 Dec 2014 16:35:15 +0100 | From | Jan Kara <> | Subject | Re: blk-mq oops with today's Linus' kernel |
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On Mon 15-12-14 08:30:05, Jens Axboe wrote: > On 12/15/2014 08:20 AM, Jens Axboe wrote: > >On 12/15/2014 08:19 AM, Jan Kara wrote: > >> Hello, > >> > >> when running xfstests with today's Linus' kernel I've got the > >>following > >>oops: > >>BUG: unable to handle kernel paging request at 0000001000000a28 > >>IP: [<ffffffff810ad9f3>] autoremove_wake_function+0x23/0x40 > >>PGD 7f566067 PUD 0 > >>Oops: 0002 [#1] SMP > >>Modules linked in: ext4 jbd2 crc16 netconsole loop raid6_pq > >>zlib_deflate lzo_compress xor > >>CPU: 4 PID: 0 Comm: swapper/4 Not tainted 3.18.0-xen+ #19 > >>Hardware name: Bochs Bochs, BIOS Bochs 01/01/2007 > >>task: ffff88007e8fa310 ti: ffff88007e900000 task.ti: ffff88007e900000 > >>RIP: 0010:[<ffffffff810ad9f3>] [<ffffffff810ad9f3>] > >>autoremove_wake_function+0x23/0x40 > >>RSP: 0018:ffff88007f103d78 EFLAGS: 00010002 > >>RAX: 0000000000000000 RBX: ffff88005140f948 RCX: ffff88005140f960 > >>RDX: 0000001000000a20 RSI: 0000000000000001 RDI: ffffffff813c2e1f > >>RBP: ffff88007f103d88 R08: 0000000000000001 R09: 0000000000000000 > >>R10: 0000000000000001 R11: 0000000000000000 R12: 0000000000000000 > >>R13: 0000000000000001 R14: ffff88007a3bd640 R15: 0000000000000000 > >>FS: 00007ff3b5dc8700(0000) GS:ffff88007f100000(0000) > >>knlGS:0000000000000000 > >>CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b > >>CR2: 0000001000000a28 CR3: 000000007a580000 CR4: 00000000000006e0 > >>Stack: > >> ffff880000000000 ffff88007a3bd628 ffff88007f103dc8 ffffffff810ad8d2 > >> 0000000300000000 ffff88007a3bd608 0000000000000000 0000000000000001 > >> 0000000000000082 0000000000000003 ffff88007f103e08 ffffffff810adf73 > >>Call Trace: > >> <IRQ> > >> [<ffffffff810ad8d2>] __wake_up_common+0x52/0x80 > >> [<ffffffff810adf73>] __wake_up+0x43/0x70 > >> [<ffffffff8121d94e>] bt_clear_tag+0xae/0xc0 > >> [<ffffffff8121d98b>] blk_mq_put_tag+0x2b/0x50 > >> [<ffffffff8121ab10>] __blk_mq_free_request+0x40/0xc0 > >> [<ffffffff8121abc1>] blk_mq_free_hctx_request+0x31/0x40 > >> [<ffffffff8121abff>] blk_mq_free_request+0x2f/0x40 > >> [<ffffffff8121b047>] blk_mq_end_request+0x57/0x60 > >> [<ffffffff81214f73>] blk_flush_complete_seq+0x293/0x2d0 > >> [<ffffffff81215373>] flush_end_io+0x113/0x210 > >> [<ffffffff8121b029>] blk_mq_end_request+0x39/0x60 > >> [<ffffffff812d3f46>] virtblk_request_done+0x36/0x80 > >> [<ffffffff81219d1e>] __blk_mq_complete_request_remote+0xe/0x10 > >> [<ffffffff810e1d82>] > >>generic_smp_call_function_single_interrupt+0x72/0x120 > >> [<ffffffff810657d2>] smp_call_function_single_interrupt+0x22/0x30 > >> [<ffffffff813c4462>] call_function_single_interrupt+0x72/0x80 > >> <EOI> > >> [<ffffffff8106e606>] ? native_safe_halt+0x6/0x10 > >> [<ffffffff810b65bd>] ? trace_hardirqs_on+0xd/0x10 > >> [<ffffffff8104520e>] default_idle+0xe/0x20 > >> [<ffffffff8104509a>] arch_cpu_idle+0xa/0x10 > >> [<ffffffff810ae64f>] cpu_startup_entry+0x2af/0x310 > >> [<ffffffff81066c8d>] start_secondary+0x15d/0x180 > >>Code: 64 4a ff ff c9 c3 66 90 55 48 89 e5 53 48 89 fb 48 83 > >>ec 08 e8 4f 4a ff ff 85 c0 89 c6 74 1b 48 8b 53 18 48 8b 43 20 48 8d > >>4b 18 > >><48> 89 42 08 48 89 10 48 89 4b 18 48 89 4b 20 48 83 c4 08 89 f0 > >>RIP [<ffffffff810ad9f3>] autoremove_wake_function+0x23/0x40 > >> RSP <ffff88007f103d78> > >>CR2: 0000001000000a28 > >>---[ end trace d4dc64619e0b4713 ]--- > > > >Is this easily reproducible? If so, could you try and revert > >52f7eb945f2ba62b324bb9ae16d945326a961dcf and see if that helps? > > Re-checking that patch, it is broken. Reverting that should fix it > up for you, I'll send that in in a bit... I'm running a test with that patch reverted. I'll see whether it fixes the problem in about 20 minutes.
Honza -- Jan Kara <jack@suse.cz> SUSE Labs, CR
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