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* Intermittent ENOSPC in 2.6.38rc2 (BUG linux/fs/btrfs/inode.c:1759)
@ 2011-01-31 10:42 cwillu
  2011-02-02  5:41 ` cwillu
  0 siblings, 1 reply; 4+ messages in thread
From: cwillu @ 2011-01-31 10:42 UTC (permalink / raw)
  To: Chris Samuel; +Cc: linux-btrfs

On Sun, Jan 30, 2011 at 11:18 PM, cwillu <cwillu@cwillu.com> wrote:
> Another one, with the process running on a btrfs chroot instead of tm=
pfs:
>
>
> [12350.410412] ------------[ cut here ]------------
> [12350.420001] kernel BUG at /home/kernel-ppa/COD/linux/fs/btrfs/inod=
e.c:1759!
> [12350.420001] invalid opcode: 0000 [#1] SMP
> [12350.420001] last sysfs file:
> /sys/devices/pci0000:00/0000:00:1f.2/host2/target2:0:0/2:0:0:0/block/=
sda/sda3/alignment_offset
> [12350.420001] CPU 3
> [12350.420001] Modules linked in: binfmt_misc ppdev ipt_MASQUERADE
> iptable_nat nf_nat nf_conntrack_ipv4 nf_defrag_ipv4 xt_state
> nf_conntrack ipt_REJECT xt_tcpudp iptable_filter ip_tables x_tables
> bridge stp aes_x86_64 snd_hda_codec_realtek aes_generic dm_crypt
> snd_hda_intel snd_hda_codec lp snd_hwdep snd_pcm snd_seq_midi
> snd_rawmidi snd_seq_midi_event snd_seq snd_timer snd_seq_device
> asus_atk0110 snd soundcore snd_page_alloc parport raid10 raid456
> async_raid6_recov async_pq raid6_pq async_xor xor async_memcpy
> async_tx raid1 raid0 multipath linear btrfs zlib_deflate libcrc32c
> radeon ttm drm_kms_helper drm usbhid usb_storage hid uas ahci
> i2c_algo_bit r8169 libahci pata_jmicron
> [12350.420001]
> [12350.420001] Pid: 8030, comm: btrfs-endio-wri Not tainted
> 2.6.38-020638rc2-generic #201101220905 P5Q3/System Product Name
> [12350.420001] RIP: 0010:[<ffffffffa021a22d>] =A0[<ffffffffa021a22d>]
> btrfs_finish_ordered_io+0x22d/0x320 [btrfs]
> [12350.420001] RSP: 0000:ffff8801fc841d30 =A0EFLAGS: 00010286
> [12350.420001] RAX: 00000000ffffffe4 RBX: ffff8801fd4ec030 RCX: fffff=
fffa01f304f
> [12350.420001] RDX: ffff88022ca37c60 RSI: ffffea00079c3c08 RDI: 00000=
00000000206
> [12350.420001] RBP: ffff8801fc841da0 R08: ffff8800bfd97cd0 R09: ffff8=
801fc841b50
> [12350.420001] R10: 0000000000000001 R11: 0000000000000024 R12: ffff8=
801fd4ec198
> [12350.420001] R13: ffff88022b15d800 R14: 0000000000000000 R15: ffff8=
80227c46b00
> [12350.420001] FS: =A00000000000000000(0000) GS:ffff8800bfd80000(0000=
)
> knlGS:0000000000000000
> [12350.420001] CS: =A00010 DS: 0000 ES: 0000 CR0: 000000008005003b
> [12350.420001] CR2: 00007f4b565810c8 CR3: 00000001fbdb5000 CR4: 00000=
000000006e0
> [12350.420001] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 00000=
00000000000
> [12350.420001] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 00000=
00000000400
> [12350.420001] Process btrfs-endio-wri (pid: 8030, threadinfo
> ffff8801fc840000, task ffff8802007dc440)
> [12350.420001] Stack:
> [12350.420001] =A00000000000001000 ffffffff00000000 ffffffff00000000
> ffff880200000000
> [12350.420001] =A00000000000000001 ffff8801fc841db0 0000000000570000
> 0000000000000000
> [12350.420001] =A0ffff880204f13600 ffffea000541e840 ffff8800a85eb7f0
> 000000000001e000
> [12350.420001] Call Trace:
> [12350.420001] =A0[<ffffffffa021a4ea>]
> btrfs_writepage_end_io_hook+0x1a/0x20 [btrfs]
> [12350.420001] =A0[<ffffffffa0232f51>] end_bio_extent_writepage+0x51/=
0x180 [btrfs]
> [12350.420001] =A0[<ffffffff8118cf2d>] bio_endio+0x1d/0x40
> [12350.420001] =A0[<ffffffffa020e998>] end_workqueue_fn+0x68/0xa0 [bt=
rfs]
> [12350.420001] =A0[<ffffffffa023f26c>] worker_loop+0xac/0x260 [btrfs]
> [12350.420001] =A0[<ffffffffa023f1c0>] ? worker_loop+0x0/0x260 [btrfs=
]
> [12350.420001] =A0[<ffffffff81085147>] kthread+0x97/0xa0
> [12350.420001] =A0[<ffffffff8100ce24>] kernel_thread_helper+0x4/0x10
> [12350.420001] =A0[<ffffffff810850b0>] ? kthread+0x0/0xa0
> [12350.420001] =A0[<ffffffff8100ce20>] ? kernel_thread_helper+0x0/0x1=
0
> [12350.420001] Code: 48 40 e8 b7 cf ff ff 48 8b 55 d0 31 f6 4c 89 e7
> e8 b9 67 01 00 4c 89 e2 4c 89 ee 4c 89 ff e8 bb ea ff ff 85 c0 0f 84
> d5 fe ff ff <0f> 0b eb fe be 01 00 00 00 4c 89 ef e8 d2 ad ff ff 49 8=
9
> c7 e9
> [12350.420001] RIP =A0[<ffffffffa021a22d>]
> btrfs_finish_ordered_io+0x22d/0x320 [btrfs]
> [12350.420001] =A0RSP <ffff8801fc841d30>
> [12351.594605] ---[ end trace f06f9985fbc265cd ]---
>

If I'm reading the trace right, it's failing with ENOSPC:  RAX:
00000000ffffffe4 will be the return value, which ctypes tells me is
-28 (ctypes.c_int(0xffffffe4) -> c_long(-28)).

I can consistently hit this by running a rootfs image build a few
times until it dies, just a matter of a few hours.  The system largely
locks up at that point, although I can still poke around a little in
ssh iff I already logged in.
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^ permalink raw reply	[flat|nested] 4+ messages in thread
end of thread, other threads:[~2011-02-02  6:15 UTC | newest]

Thread overview: 4+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2011-01-31 10:42 Intermittent ENOSPC in 2.6.38rc2 (BUG linux/fs/btrfs/inode.c:1759) cwillu
2011-02-02  5:41 ` cwillu
2011-02-02  6:05   ` Chris Samuel
2011-02-02  6:15     ` cwillu

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