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[Bug 1036171] btrfs soft lockup kernel 4.10.9-1 ppc64le
  • From: bugzilla_noreply@xxxxxxxxxx
  • Date: Tue, 20 Jun 2017 11:52:27 +0000
  • Message-id: <bug-1036171-21960-PrzOSsYF0w@http.bugzilla.suse.com/>
http://bugzilla.suse.com/show_bug.cgi?id=1036171
http://bugzilla.suse.com/show_bug.cgi?id=1036171#c3

--- Comment #3 from Michel Normand <normand@xxxxxxxxxxxxxxxxxx> ---
I have a similar failure with TW snapshot 20170619 (kernel 4.11.5-1-default
after a simple ppc64le guest install.
If needed I have the journalctl output, for which I extracted following lines.

===
Jun 20 07:32:11 linux-krql kernel: NMI watchdog: BUG: soft lockup - CPU#4 stuck
for 23s! [btrfs:12990]
Jun 20 07:32:11 linux-krql kernel: Modules linked in: af_packet xfs libcrc32c
virtio_balloon rtc_generic virtio_net btrfs xor raid6_pq sr_mod cdrom sd_mod
ibmvscsi scsi_transport_srp ohci_pci ehci_pci ohci_hcd ehci_hcd crc32c_vpmsum
usbcore sg scsi_mod
Jun 20 07:32:11 linux-krql kernel: CPU: 4 PID: 12990 Comm: btrfs Not tainted
4.11.5-1-default #1
Jun 20 07:32:11 linux-krql kernel: task: c0000001755d3580 task.stack:
c0000001753b0000
Jun 20 07:32:11 linux-krql kernel: NIP: d000000002061380 LR: d000000002061378
CTR: c00000000007ed80
Jun 20 07:32:11 linux-krql kernel: REGS: c0000001753b30e0 TRAP: 0901 Not
tainted (4.11.5-1-default)
Jun 20 07:32:11 linux-krql kernel: MSR: 800000010280b033
<SF,VEC,VSX,EE,FP,ME,IR,DR,RI,LE,TM[E]>
Jun 20 07:32:11 linux-krql kernel: CR: 28244882 XER: 20000000
Jun 20 07:32:11 linux-krql kernel: CFAR: d000000002071d70 SOFTE: 1
GPR00: 0000000000000000 c0000001753b3360
d00000000212f7a8 0000000000000000
GPR04: 0000000000002e8b ffffffffffffffff
c0000001753b3390 0000000000010000
GPR08: c0000001753b3380 c000000147980000
f00000000051e600 0000000000010000
GPR12: c00000000007ed80 c00000000fb82400
Jun 20 07:32:11 linux-krql kernel: NIP [d000000002061380]
btrfs_get_token_8+0x168/0x1e0 [btrfs]
Jun 20 07:32:11 linux-krql kernel: LR [d000000002061378]
btrfs_get_token_8+0x160/0x1e0 [btrfs]
Jun 20 07:32:11 linux-krql kernel: Call Trace:
Jun 20 07:32:11 linux-krql kernel: [c0000001753b3360] [c0000001753b33d0]
0xc0000001753b33d0 (unreliable)
Jun 20 07:32:11 linux-krql kernel: [c0000001753b33d0] [d0000000020d0f90]
btrfs_qgroup_trace_leaf_items+0x108/0x1e0 [btrfs]
Jun 20 07:32:11 linux-krql kernel: [c0000001753b3450] [d0000000020d13c0]
btrfs_qgroup_trace_subtree+0x358/0x4d0 [btrfs]
Jun 20 07:32:11 linux-krql kernel: [c0000001753b3510] [d0000000020af55c]
replace_path+0x604/0x7f0 [btrfs]
Jun 20 07:32:11 linux-krql kernel: [c0000001753b3630] [d0000000020b537c]
merge_reloc_root+0x284/0x6d0 [btrfs]
Jun 20 07:32:11 linux-krql kernel: [c0000001753b3700] [d0000000020b58b8]
merge_reloc_roots+0xf0/0x2e0 [btrfs]
Jun 20 07:32:11 linux-krql kernel: [c0000001753b37b0] [d0000000020b5ed0]
relocate_block_group+0x428/0x7f0 [btrfs]
Jun 20 07:32:11 linux-krql kernel: [c0000001753b38b0] [d0000000020b64b4]
btrfs_relocate_block_group+0x21c/0x320 [btrfs]
Jun 20 07:32:11 linux-krql kernel: [c0000001753b3940] [d000000002078e84]
btrfs_relocate_chunk+0x6c/0x1b0 [btrfs]
Jun 20 07:32:11 linux-krql kernel: [c0000001753b39d0] [d00000000207aac4]
__btrfs_balance+0x9ec/0xdc0 [btrfs]
Jun 20 07:32:11 linux-krql kernel: [c0000001753b3b40] [d00000000207b2dc]
btrfs_balance+0x444/0x670 [btrfs]
Jun 20 07:32:11 linux-krql kernel: [c0000001753b3bd0] [d0000000020879c4]
btrfs_ioctl_balance+0x3ac/0x420 [btrfs]
Jun 20 07:32:11 linux-krql kernel: [c0000001753b3c40] [d00000000208e1f0]
btrfs_ioctl+0xd88/0x2af0 [btrfs]
Jun 20 07:32:11 linux-krql kernel: [c0000001753b3d40] [c000000000391304]
do_vfs_ioctl+0xd4/0x9f0
Jun 20 07:32:11 linux-krql kernel: [c0000001753b3de0] [c000000000391ce4]
SyS_ioctl+0xc4/0xf0
Jun 20 07:32:11 linux-krql kernel: [c0000001753b3e30] [c00000000000b004]
system_call+0x38/0xe0
Jun 20 07:32:11 linux-krql kernel: Instruction dump:
Jun 20 07:32:11 linux-krql kernel: 4e800020 60000000 60000000 60420000 39010020
38e10028 38c10030 38a00001
Jun 20 07:32:11 linux-krql kernel: 7fa4eb78 4801094d 60000000 2fa30000
<409eff94> e8a10028 e9210030 7ca5d850
===

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