http://bugzilla.opensuse.org/show_bug.cgi?id=1148562 Bug ID: 1148562 Summary: BTRFS - watchdog: BUG: soft lockup - CPU#0 stuck for 24s! [snapperd:16153] Classification: openSUSE Product: openSUSE Tumbleweed Version: Current Hardware: aarch64 OS: Other Status: NEW Severity: Normal Priority: P5 - None Component: Kernel Assignee: kernel-maintainers@forge.provo.novell.com Reporter: guillaume.gardet@arm.com QA Contact: qa-bugs@suse.de Found By: --- Blocker: --- While installing Mate desktop in openQA, it triggers a soft lockup in BTRFS. https://openqa.opensuse.org/tests/1019162#step/consoletest_finish/2 Traces: [ 973.697661] watchdog: BUG: soft lockup - CPU#0 stuck for 24s! [snapperd:16153] [ 973.864753] Modules linked in: fuse scsi_transport_iscsi af_packet xt_tcpudp ip6t_rpfilter ip6t_REJECT nf_reject_ipv6 ipt_REJECT nf_reject_ipv4 xt_conntrack ebtable_nat ip6table_nat ip6table_mangle ip6table_raw ip6table_security iptable_nat nf_nat iptable_mangle iptable_raw iptable_security nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 ip_set nfnetlink ebtable_filter ebtables ip6table_filter ip6_tables iptable_filter iscsi_ibft iscsi_boot_sysfs ip_tables x_tables aes_ce_blk crypto_simd cryptd aes_ce_cipher crct10dif_ce ghash_ce aes_arm64 sha2_ce sha256_arm64 joydev snd_intel8x0 sha1_ce snd_ac97_codec ac97_bus snd_pcm snd_timer snd soundcore nls_iso8859_1 nls_cp437 vfat fat btrfs libcrc32c xor xor_neon zlib_deflate hid_generic usbhid sr_mod cdrom raid6_pq xhci_pci virtio_gpu xhci_hcd drm_kms_helper syscopyarea sysfillrect sysimgblt fb_sys_fops ttm virtio_blk virtio_scsi usbcore virtio_net net_failover failover drm virtio_mmio sg dm_multipath dm_mod scsi_dh_rdac scsi_dh_emc scsi_dh_alua [ 973.864843] efivarfs virtio_rng [ 973.878100] CPU: 0 PID: 16153 Comm: snapperd Not tainted 5.2.9-1-default #1 openSUSE Tumbleweed (unreleased) [ 973.879517] Hardware name: QEMU KVM Virtual Machine, BIOS 0.0.0 02/06/2015 [ 973.880514] pstate: 40000005 (nZcv daif -PAN -UAO) [ 973.881238] pc : __ll_sc_arch_atomic_sub_return+0x14/0x20 [ 973.882082] lr : btrfs_release_extent_buffer_pages+0xe0/0x1e8 [btrfs] [ 973.883017] sp : ffff00001273b7e0 [ 973.883503] x29: ffff00001273b7e0 x28: 0000000000000000 [ 973.884277] x27: ffffb29bba1fe800 x26: 0000000000000000 [ 973.885051] x25: ffff00001273b9f0 x24: 0000000000000001 [ 973.885824] x23: ffffb29b95ba2948 x22: 0000000000000000 [ 973.886597] x21: ffffb29b95ba29f0 x20: ffffb29b95ba29e0 [ 973.887371] x19: ffff7eca6e5e5300 x18: 0000000000000000 [ 973.888144] x17: 0000000000000000 x16: 0000000000000000 [ 973.888918] x15: 0000000000000000 x14: 0000000000000000 [ 973.889691] x13: 0000000000000000 x12: 0000000000000000 [ 973.908600] x11: 0000000000000000 x10: 0000000000000040 [ 973.909374] x9 : ffffb29bb7f796d0 x8 : ffffb29bb7f796c8 [ 973.910147] x7 : 0000000000000010 x6 : ffffb29bbfbeb2e8 [ 973.910921] x5 : 0000000000000003 x4 : ffff5656ced021d0 [ 973.911700] x3 : ffff5656ceef7478 x2 : dead0000000000ff [ 973.912471] x1 : ffff7eca6e5e5334 x0 : 0000000000000001 [ 973.913246] Call trace: [ 973.913612] __ll_sc_arch_atomic_sub_return+0x14/0x20 [ 973.914382] release_extent_buffer+0xdc/0x120 [btrfs] [ 973.915143] free_extent_buffer.part.0+0xb0/0x118 [btrfs] [ 973.915954] free_extent_buffer+0x24/0x30 [btrfs] [ 973.916664] btrfs_release_path+0x4c/0xa0 [btrfs] [ 973.917374] btrfs_free_path.part.0+0x20/0x40 [btrfs] [ 973.918134] btrfs_free_path+0x24/0x30 [btrfs] [ 973.918806] get_inode_info+0xa8/0xf8 [btrfs] [ 973.919467] finish_inode_if_needed+0xe0/0x6d8 [btrfs] [ 973.920241] changed_cb+0x9c/0x410 [btrfs] [ 973.920866] btrfs_compare_trees+0x284/0x648 [btrfs] [ 973.921621] send_subvol+0x33c/0x520 [btrfs] [ 973.922270] btrfs_ioctl_send+0x8a0/0xaf0 [btrfs] [ 973.922981] btrfs_ioctl+0x199c/0x2288 [btrfs] [ 973.923640] do_vfs_ioctl+0x4b0/0x820 [ 973.924180] ksys_ioctl+0x84/0xb8 [ 973.944409] __arm64_sys_ioctl+0x28/0x38 [ 973.945959] el0_svc_common.constprop.0+0x7c/0x188 [ 973.947575] el0_svc_handler+0x34/0x90 [ 973.949006] el0_svc+0x8/0xc -- You are receiving this mail because: You are on the CC list for the bug.