Public bug reported:
When using the bionic kernel (hwe-edge) on xenial we randomly trigger a
kernel bug when creating or querying a thin provisioned lvm volume.
kernel: [146487.421278] ------------[ cut here ]------------
kernel: [146487.421281] kernel BUG at
/build/linux-hwe-edge-eBL7So/linux-hwe-edge-4.15.0/drivers/md/persistent-data/dm-space-map-disk.c:178!
kernel: [146487.421435] invalid opcode: 0000 [#1] SMP PTI
kernel: [146487.421528] Modules linked in: dm_snapshot cmac arc4 md4 nls_utf8
cifs ccm fscache dccp_diag dccp tcp_diag udp_diag inet_diag unix_diag
af_packet_diag netlink_diag xt_CHECKSUM xt_nat iptable_nat nf_nat_ipv4
nf_conntrack_ipv6 nf_defrag_ipv6 ip6table_filter ip6_tables xt_tcpudp
nf_conntrack_ipv4 nf_defrag_ipv4 xt_conntrack iptable_filter veth dummy bridge
iptable_mangle xt_CT iptable_raw ip_tables x_tables vhost_net vhost tap
ipmi_ssif dm_thin_pool dm_persistent_data dm_bio_prison dm_bufio intel_rapl
skx_edac x86_pkg_temp_thermal intel_powerclamp coretemp kvm_intel kvm irqbypass
crct10dif_pclmul crc32_pclmul ghash_clmulni_intel pcbc aesni_intel aes_x86_64
crypto_simd glue_helper cryptd intel_cstate intel_rapl_perf lpc_ich ioatdma
shpchp dca acpi_power_meter acpi_pad mac_hid ipmi_si ipmi_devintf
ipmi_msghandler
kernel: [146487.421859] nf_nat_ftp nf_conntrack_ftp nf_nat_sip
nf_conntrack_sip nf_nat_pptp nf_conntrack_pptp nf_nat_proto_gre nf_nat
nf_conntrack_proto_gre nf_conntrack tcp_htcp 8021q garp mrp stp llc bonding
autofs4 btrfs zstd_compress raid456 async_raid6_recov async_memcpy async_pq
async_xor async_tx xor raid6_pq libcrc32c raid0 multipath linear raid10 raid1
i2c_algo_bit ttm i40e drm_kms_helper syscopyarea ptp sysfillrect pps_core
sysimgblt fb_sys_fops nvme ahci drm nvme_core libahci wmi
kernel: [146487.422080] CPU: 13 PID: 2274450 Comm: kworker/u576:1 Not tainted
4.15.0-22-generic #24~16.04.1-Ubuntu
kernel: [146487.422211] Hardware name: Quanta Cloud Technology Inc. QuantaGrid
D52B-1U/S5B-MB (LBG-4), BIOS 3A10.03 11/17/2017
kernel: [146487.422349] Workqueue: dm-thin do_worker [dm_thin_pool]
kernel: [146487.422443] RIP: 0010:sm_disk_new_block+0xa1/0xb0
[dm_persistent_data]
kernel: [146487.422536] RSP: 0018:ffff9efc5e4d3c68 EFLAGS: 00010297
kernel: [146487.422626] RAX: 0000000000000000 RBX: ffff88b122d34000 RCX:
0000000000000000
kernel: [146487.422749] RDX: ffff8868d8631e00 RSI: 0000000000000282 RDI:
ffff88b137691200
kernel: [146487.422872] RBP: ffff9efc5e4d3c90 R08: 0000000000000000 R09:
ffff9efc5e4d39f0
kernel: [146487.422994] R10: ffff9efc5e4d38f8 R11: ffff9efc5e4d3b48 R12:
0000000000000000
kernel: [146487.423117] R13: ffff9efc5e4d3d40 R14: ffff9efc5e4d3d40 R15:
ffff882de1769fa0
kernel: [146487.423240] FS: 0000000000000000(0000) GS:ffff8868ee540000(0000)
knlGS:0000000000000000
kernel: [146487.423366] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
kernel: [146487.423457] CR2: 00007f0f30b083c0 CR3: 0000002ab260a004 CR4:
00000000007626e0
kernel: [146487.423580] DR0: 0000000000000000 DR1: 0000000000000000 DR2:
0000000000000000
kernel: [146487.423703] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7:
0000000000000400
kernel: [146487.423826] PKRU: 55555554
kernel: [146487.423906] Call Trace:
kernel: [146487.423989] dm_pool_alloc_data_block+0x44/0x60 [dm_thin_pool]
kernel: [146487.424082] alloc_data_block.isra.53+0x6f/0x180 [dm_thin_pool]
kernel: [146487.424175] process_cell+0x2cf/0x4d0 [dm_thin_pool]
kernel: [146487.424267] ? mempool_alloc_slab+0x15/0x20
kernel: [146487.424354] ? mempool_alloc+0x73/0x180
kernel: [146487.424440] ? process_prepared+0x8d/0xc0 [dm_thin_pool]
kernel: [146487.424531] do_worker+0x25c/0x8b0 [dm_thin_pool]
kernel: [146487.424621] process_one_work+0x14d/0x410
kernel: [146487.424708] ? process_discard_cell_passdown+0x1e0/0x1e0
[dm_thin_pool]
kernel: [146487.424802] ? process_one_work+0x14d/0x410
kernel: [146487.424888] worker_thread+0x4b/0x460
kernel: [146487.424973] kthread+0x105/0x140
kernel: [146487.425055] ? process_one_work+0x410/0x410
kernel: [146487.425142] ? kthread_associate_blkcg+0xa0/0xa0
kernel: [146487.425230] ? do_syscall_64+0x73/0x130
kernel: [146487.425315] ? SyS_exit_group+0x14/0x20
kernel: [146487.425401] ret_from_fork+0x35/0x40
kernel: [146487.425485] Code: c0 01 48 89 83 20 22 00 00 49 8b 75 00 e8 68 f7
ff ff 85 c0 75 10 83 7d dc 01 75 0f 48 83 83 28 22 00 00 01 eb af 41 89 c4 eb
aa <0f> 0b e8 e8 1b cf d2 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 55
kernel: [146487.425703] RIP: sm_disk_new_block+0xa1/0xb0 [dm_persistent_data]
RSP: ffff9efc5e4d3c68
kernel: [146487.425869] ---[ end trace 76985d9f3818cc3d ]---
** Affects: linux (Ubuntu)
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/1777398
Title:
dm thin block allocation failure
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