On Tue, Jul 03, 2012 at 04:35:25PM +0200, Jan Schmidt wrote: > On 03.07.2012 15:58, Sami Liedes wrote: > > I think I might try setting up that netconsole to see if there are any > > interesting console messages before the oops... As I said, I also was > > able to reproduce this on 3.4.4, so ATM I assume I'm able to reproduce > > this at will. > > That would be helpful. It's good that it's reproducible. Please paste the > entire > output if possible. > > If there's nothing immediately useful in there, I'll try to make up some > debugging patches for that problem.
There's certainly something there; unfortunately netconsole eats most
of it. (Is there a better way to capture full dmesg from panic?
Assuming a computer without a serial port.)
I've seen this before: An overly long "Modules linked in:" line causes
a large gap in netconsole output.
Hovever perhaps the most interesting piece is there:
[30846.822395] WARNING: at fs/btrfs/extent_io.c:4522
read_extent_buffer+0xe6/0x110 [btrfs]()
Unfortunately, no backtrace for that :( Ideas?
Sami
------------------------------------------------------------
[30638.258946] netpoll: netconsole: local port 4444
[30638.258950] netpoll: netconsole: local IP 192.168.1.2
[30638.258952] netpoll: netconsole: interface 'eth0'
[30638.258953] netpoll: netconsole: remote port 1194
[30638.258954] netpoll: netconsole: remote IP 192.168.1.73
[30638.258956] netpoll: netconsole: remote ethernet address 00:1c:10:44:47:2c
[30638.259002] console [netcon0] enabled
[30638.259004] netconsole: network logging started
[30846.822356] ------------[ cut here ]------------
[30846.822395] WARNING: at fs/btrfs/extent_io.c:4522
read_extent_buffer+0xe6/0x110 [btrfs]()
[30846.822400] Hardware name: System Product Name
[30846.822402] Modules linked in: netconsole configfs tun cn ip6_tables
ebtable_nat ebtables parport_pc ppdev lp parport bnep rfcomm cpufreq_userspace
cpufreq_stats cpufreq_powersave cpufreq_conservative binfmt_misc nfsd nfs
nfs_acl auth_rpcgss fscache lockd sunrpc iptable_filter ipt_MASQUERADE
ipt_REDIRECT iptable_nat nf_nat nf_conntrack_ipv4 nf_defrag_ipv4 nf_conntrack
ip_tables x_tables xfs ext4 jbd2 mbcache radeon drm_kms_helper ttm drm
i2c_algo_bit loop fuse kvm_intel kvm snd_hda_codec_hdmi snd_hda_codec_realtek
snd_usb_audio snd_hda_intel snd_usbmidi_lib snd_hda_codec snd_hwdep snd_pcm_oss
joydev snd_mixer_oss snd_pcm snd_page_alloc eeepc_wmi90 90 90 48 89 f8 48 89 90
48 c1 e9 03 83 e2 07 <f3> 48 a5 89 d1 f3 a4 c3 20 4c 8b 06 4c 8b 4e 08 4c 8b 56
10 4c
[30846.825219] RIP [<ffffffff811e84dd>] memcpy+0xd/0x110
[30846.825248] RSP <ffff88009ecebba8>
xord1 raid6_pq md_mod nbd btrfs libcrc32c zlib_deflate sd_mod crc_t10dif ahci
libahci crc32c_intel r8169 pci_hotplug bluetooth snd_seq_device snd_timer snd
intel_agp acpi_cpufreq mperf mxm_wmi psmouse wmi coretemp soundcore processor
serio_raw i2c_i801 iTCO_wdt video rfkill microcode crc16 evdev i2c_core button
intel_gtt[30846.822679] [<ffffffffa0249841>]
btree_readpage_end_io_hook+0x111/0x260 [btrfs]
sha256_generic dm_crypt dm_mod raid456 async_raid6_recov async_memcpy async_pq
async_xor xor async_tx[30846.822773] [<ffffffff81419120>] ? gs_change+0x13/0x13
md_mod nbd btrfs libcrc32c zlib_deflate sd_mod crc_t10dif ahci libahci
raid6_pq r8169 mii firewire_ohci ghash_clmulni_intel firewire_core aesni_intel
crc_itu_t aes_x86_64 bnep aes_generic cryptd scsi_mod e1000e fan thermal nfsd
thermal_sys [last unloaded: netconsole] auth_rpcgss[30846.823704] Pid: 16224,
comm: btrfs-endio-met Tainted: G W 3.4.4 #1 System manufacturer
System Product Name/P8P67 EVO
[30846.823767] RIP: 0010:[<ffffffff811e84dd>] [<ffffffff811e84dd>]
memcpy+0xd/0x110
[30846.823805] RSP: 0000:ffff88009ecebba8 EFLAGS: 00010202
[30846.823830] RAX: ffff88009ecebc8f RBX: 0000000000000011 RCX: 0000000000000002
[30846.823865] RDX: 0000000000000001 RSI: 0005080000000003 RDI: ffff88009ecebc8f
[30846.823933] R10: ffff88001d2395c0 R11: ffff8801f198c780 R12: ffff88009ecebca0
[30846.823968] R13: ffff88008eb01178 R14: 0000000000000048 R15: 0000000000000011
[30846.824002] FS: 0000000000000000(0000) GS:ffff88021ec80000(0000)
knlGS:0000000000000000
[30846.824042] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
[30846.824069] CR2: 000000000add813c CR3: 0000000163305000 CR4: 00000000000407e0
[30846.823694]
[30846.824101] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[30846.824136] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
[30846.824171] Process btrfs-endio-met (pid: 16224, threadinfo
ffff88009ecea000, task ffff88020f3142f0)
[30846.824225] ffffffffa0275d5b ffff880167d30000 0000000000008003
0000000000001000
[30846.824273] ffff88009ecebc58 00000000000003dd[30846.824214] Stack:
ffff880099cdea20
[30846.824318] 6172745f69706d20 ffff88009ecebc00 ffffffffa026d03d
ffff88009ecebc58 ffff88009ecebcd0
[30846.824363] Call Trace:
[30846.824434] [<ffffffffa026d03d>] btrfs_node_key+0x1d/0x20 [btrfs]
[30846.824474] [<ffffffffa02a34d0>] __readahead_hook.isra.5+0x3c0/0x420 [btrfs]
[30846.824517] [<ffffffffa02a385f>] btree_readahead_hook+0x1f/0x40 [btrfs]
[30846.824556] [<ffffffffa0249841>] btree_readpage_end_io_hook+0x111/0x260
[btrfs]
[30846.824602] [<ffffffffa0271442>] ? find_first_extent_bit_state+0x22/0x80
[btrfs]
[30846.824647] [<ffffffffa027208b>] end_bio_extent_readpage+0xcb/0xa30 [btrfs]
[30846.824391] [<ffffffffa0275d5b>] ? read_extent_buffer+0xbb/0x110 [btrfs]
[30846.824690] [<ffffffffa0248e61>] ? end_workqueue_fn+0x31/0x50 [btrfs]
[30846.824756] [<ffffffffa0248e6c>] end_workqueue_fn+0x3c/0x50 [btrfs]
[30846.824797] [<ffffffffa027f847>] worker_loop+0x157/0x560 [btrfs]
[30846.824836] [<ffffffffa027f6f0>] ? btrfs_queue_worker+0x310/0x310 [btrfs]
[30846.824870] [<ffffffff81058e5e>] kthread+0x8e/0xa0
[30846.824895] [<ffffffff81419124>] kernel_thread_helper+0x4/0x10
[30846.824925] [<ffffffff81058dd0>] ? flush_kthread_worker+0x70/0x70
[30846.824957] [<ffffffff81419120>] ? gs_change+0x13/0x13
[30846.824983] Code: [30846.824724] [<ffffffff81158a78>] bio_endio+0x18/0x30
4e 83 c4 08 5b 5d c3 66 0f 1f 48 44 00 e8 eb fb 00 eb 90 90 90 90 90
[30846.835959] ---[ end trace e93713a9d40cd06f ]---
[30874.611121] SysRq : Resetting
[30874.611134] ACPI MEMORY or I/O RESET_REG.
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