From: Tsutomu Itoh <t-itoh@jp.fujitsu.com>
To: dave@jikos.cz
Cc: Linux Btrfs <linux-btrfs@vger.kernel.org>,
Chris Mason <chris.mason@Oracle.COM>
Subject: Re: [BUG, integration-test] fs/btrfs/inode.c:835
Date: Fri, 30 Sep 2011 09:06:50 +0900 [thread overview]
Message-ID: <4E85081A.9030900@jp.fujitsu.com> (raw)
In-Reply-To: <20110929220513.GH22205@twin.jikos.cz>
Hi, David,
(2011/09/30 7:05), David Sterba wrote:
> Hi,
>
> xfstests/013 triggered this bug (I've never seen it before, though the
> integration-test is basically the same what I was hammering with xfstests
> recently):
The problem might be solved by the following patch.
http://marc.info/?l=linux-btrfs&m=131556023601191&w=2
Thanks,
Tsutomu
>
> [15572.066484] ------------[ cut here ]------------
> [15572.068548] kernel BUG at fs/btrfs/inode.c:835!
> [15572.068548] invalid opcode: 0000 [#1] SMP
> [15572.068548] CPU 1
> [15572.068548] Modules linked in: loop btrfs aoe [last unloaded: btrfs]
> [15572.068548]
> [15572.068548] Pid: 8543, comm: fsstress Not tainted 3.1.0-rc7-default+ #36 Intel Corporation Santa Rosa platform/Mat
> anzas
> [15572.068548] RIP: 0010:[<ffffffffa00de821>] [<ffffffffa00de821>] cow_file_range+0x381/0x390 [btrfs]
> [15572.068548] RSP: 0018:ffff880016f0f898 EFLAGS: 00010286
> [15572.068548] RAX: 00000000ffffffe4 RBX: ffff880054854868 RCX: 0000000000000001
>
> -ENOSPC
>
> 828 while (disk_num_bytes > 0) {
> 829 unsigned long op;
> 830
> 831 cur_alloc_size = disk_num_bytes;
> 832 ret = btrfs_reserve_extent(trans, root, cur_alloc_size,
> 833 root->sectorsize, 0, alloc_hint,
> 834 (u64)-1, &ins, 1);
> 835 BUG_ON(ret);
>
>
> [15572.068548] RDX: ffff880016f0f8f8 RSI: 0000000000000001 RDI: ffff88004b784000
> [15572.068548] RBP: ffff880016f0f948 R08: 0000000000000000 R09: 0000000000000001
> [15572.068548] R10: 0000000000000000 R11: 86a0000000000000 R12: 000000000004d000
> [15572.068548] R13: ffff8800548548b0 R14: 000000000004dfff R15: ffff880054854be8
> [15572.068548] FS: 00007f96e66e2700(0000) GS:ffff88007e600000(0000) knlGS:0000000000000000
> [15572.068548] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
> [15572.068548] CR2: 00007f96e5ec9d50 CR3: 0000000012537000 CR4: 00000000000006e0
> [15572.068548] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
> [15572.068548] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
> [15572.068548] Process fsstress (pid: 8543, threadinfo ffff880016f0e000, task ffff88004b67d2c0)
> [15572.068548] Stack:
> [15572.068548] ffffffffffffffff ffff880016f0f8f8 0000000000000001 ffffffff810d18dd
> [15572.068548] 0000000000000000 ffff8800548548b0 ffff88007dad2d60 ffff880052022390
> [15572.068548] ffff88001f747000 0000000000001000 ffff880016f0fad8 ffff880054854860
> [15572.068548] Call Trace:
> [15572.068548] [<ffffffff810d18dd>] ? lock_release_holdtime+0x3d/0x1a0
> [15572.068548] [<ffffffffa00df363>] run_delalloc_range+0x343/0x380 [btrfs]
> [15572.068548] [<ffffffff810c46df>] ? local_clock+0x6f/0x80
> [15572.068548] [<ffffffffa00f63b0>] __extent_writepage+0x5c0/0x750 [btrfs]
> [15572.068548] [<ffffffff810d18dd>] ? lock_release_holdtime+0x3d/0x1a0
> [15572.068548] [<ffffffff81139b3f>] ? find_get_pages_tag+0x10f/0x200
> [15572.068548] [<ffffffff81139b57>] ? find_get_pages_tag+0x127/0x200
> [15572.068548] [<ffffffffa00f676a>] extent_write_cache_pages.clone.0+0x22a/0x3b0 [btrfs]
> [15572.068548] [<ffffffff810c46df>] ? local_clock+0x6f/0x80
> [15572.068548] [<ffffffff810d7b91>] ? mark_held_locks+0x81/0x160
> [15572.068548] [<ffffffff81177e75>] ? kmem_cache_free+0xb5/0x110
> [15572.068548] [<ffffffffa00f6b36>] extent_writepages+0x46/0x60 [btrfs]
> [15572.068548] [<ffffffffa00daef0>] ? uncompress_inline+0x200/0x200 [btrfs]
> [15572.068548] [<ffffffffa00d9ef7>] btrfs_writepages+0x27/0x30 [btrfs]
> [15572.068548] [<ffffffff81143ea4>] do_writepages+0x24/0x40
> [15572.068548] [<ffffffff8113a1db>] __filemap_fdatawrite_range+0x5b/0x60
> [15572.068548] [<ffffffff8113b153>] filemap_fdatawrite_range+0x13/0x20
> [15572.068548] [<ffffffffa00f1857>] btrfs_wait_ordered_range+0x57/0x150 [btrfs]
> [15572.068548] [<ffffffffa00e1069>] btrfs_truncate+0xb9/0x670 [btrfs]
> [15572.068548] [<ffffffffa00e197c>] btrfs_setsize+0x4c/0xd0 [btrfs]
> [15572.068548] [<ffffffffa00e1abc>] btrfs_setattr+0xbc/0xd0 [btrfs]
> [15572.068548] [<ffffffff8118207a>] ? do_truncate+0x5a/0xa0
> [15572.068548] [<ffffffff811a026e>] notify_change+0x13e/0x360
> [15572.068548] [<ffffffff81182086>] do_truncate+0x66/0xa0
> [15572.068548] [<ffffffff8118221c>] sys_truncate+0x15c/0x1b0
> [15572.068548] [<ffffffff81be85c2>] system_call_fastpath+0x16/0x1b
> [15572.068548] Code: 41 5c 41 5d 41 5e 41 5f c9 c3 48 8b 7d 88 4c 89 fe 4c 89 95 70 ff ff ff e8 bd 81 00 00 4c 8b 95 70 ff ff ff e9 52 fd ff ff 0f 0b <0f> 0b 0f 0b 0f 0b 0f 0b 0f 0b 0f 1f 44 00 00 55 48 89 e5 41 57
> [15572.068548] RIP [<ffffffffa00de821>] cow_file_range+0x381/0x390 [btrfs]
> [15572.068548] RSP <ffff880016f0f898>
> [15572.552342] ---[ end trace 6c8debc90a75da62 ]---
>
>
> $ btrfs fi show
> Label: none uuid: e72aab6b-cb1e-45d2-81dc-6afb3773ab86
> Total devices 1 FS bytes used 92.00KB
> devid 1 size 10.00GB used 2.04GB path /dev/sda10
>
> Label: none uuid: 5e0e3c03-125d-4889-9118-cd57ff31f719
> Total devices 5 FS bytes used 247.46MB
> devid 5 size 10.00GB used 2.01GB path /dev/sda9
> devid 4 size 10.00GB used 2.01GB path /dev/sda8
> devid 3 size 10.00GB used 1.01GB path /dev/sda7
> devid 2 size 10.00GB used 1.01GB path /dev/sda6
> devid 1 size 10.00GB used 2.02GB path /dev/sda5
>
> $ btrfs fi df /mnt/a1
> Data, RAID10: total=2.00GB, used=242.25MB
> Data: total=8.00MB, used=0.00
> System, RAID10: total=16.00MB, used=4.00KB
> System: total=4.00MB, used=0.00
> Metadata, RAID10: total=2.00GB, used=5.29MB
> Metadata: total=8.00MB, used=4.00KB
>
>
> processes in D state:
>
> PID TTY STAT TIME COMMAND
> 8537 ? D 0:00 [btrfs-transacti]
> [<ffffffff810909af>] schedule+0x3f/0x60
> [<ffffffffa00d6fe7>] btrfs_commit_transaction+0x247/0x8d0 [btrfs]
> [<ffffffffa00cfe13>] transaction_kthread+0x283/0x2a0 [btrfs]
> [<ffffffff810bd0f6>] kthread+0xa6/0xb0
> [<ffffffff81be9844>] kernel_thread_helper+0x4/0x10
> [<ffffffffffffffff>] 0xffffffffffffffff
> PID TTY STAT TIME COMMAND
> 8575 pts/0 D+ 0:00 mount -o remount,rw /dev/sda5
> [<ffffffff810909af>] schedule+0x3f/0x60
> [<ffffffff811ab9a9>] writeback_inodes_sb_nr+0x139/0x170
> [<ffffffff811abd11>] writeback_inodes_sb+0x21/0x30
> [<ffffffff811b2269>] __sync_filesystem+0x49/0x90
> [<ffffffff811b231a>] sync_filesystem+0x3a/0x70
> [<ffffffff81187931>] do_remount_sb+0x61/0x130
> [<ffffffff811a57c4>] do_mount+0x5f4/0x7a0
> [<ffffffff811a5d68>] sys_mount+0x98/0xf0
> [<ffffffff81be85c2>] system_call_fastpath+0x16/0x1b
> [<ffffffffffffffff>] 0xffffffffffffffff
> PID TTY STAT TIME COMMAND
> 8576 ? D 0:00 [flush-btrfs-151]
> [<ffffffff810909af>] schedule+0x3f/0x60
> [<ffffffff811389fe>] sleep_on_page+0xe/0x20
> [<ffffffff811389e7>] __lock_page+0x67/0x70
> [<ffffffffa00f6738>] extent_write_cache_pages.clone.0+0x1f8/0x3b0 [btrfs]
> [<ffffffffa00f6b36>] extent_writepages+0x46/0x60 [btrfs]
> [<ffffffffa00d9ef7>] btrfs_writepages+0x27/0x30 [btrfs]
> [<ffffffff81143ea4>] do_writepages+0x24/0x40
> [<ffffffff811ad7d4>] writeback_single_inode+0x184/0x420
> [<ffffffff811ade80>] writeback_sb_inodes+0x1b0/0x270
> [<ffffffff811ae0eb>] wb_writeback+0xdb/0x310
> [<ffffffff811ae5bc>] wb_do_writeback+0xbc/0x250
> [<ffffffff811ae7fb>] bdi_writeback_thread+0xab/0x290
> [<ffffffff810bd0f6>] kthread+0xa6/0xb0
> [<ffffffff81be9844>] kernel_thread_helper+0x4/0x10
> [<ffffffffffffffff>] 0xffffffffffffffff
> PID TTY STAT TIME COMMAND
>
>
> david
next prev parent reply other threads:[~2011-09-30 0:06 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-09-29 22:05 [BUG, integration-test] fs/btrfs/inode.c:835 David Sterba
2011-09-30 0:06 ` Tsutomu Itoh [this message]
2011-09-30 10:52 ` David Sterba
2011-09-30 20:10 ` Chris Mason
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