[LU-11315] Crash in lustre_swab_fiemap

Duplicate — Fri, 21 Jan 2022 01:32:16 +0000
Seen on maloo test sanityn 71b on Aug 25: https://testing.whamcloud.com/test_sessions/2e1245b4-d7ff-499c-87b5-1a4e54259387
[12653.407506] Lustre: DEBUG MARKER: == sanityn test 71b: check fiemap support for stripecount > 1 ======================================== 14:43:58 (1535121838)
[12653.795397] BUG: unable to handle kernel paging request at ffff9bb33880e000
[12653.796262] IP: [<ffffffffc0b70057>] lustre_swab_fiemap+0x67/0xa0 [ptlrpc]
[12653.797156] PGD b62e067 PUD b632067 PMD 7bf15063 PTE 800000007880e061
[12653.797857] Oops: 0003 [#1] SMP 
[12653.798234] Modules linked in: dm_flakey osp(OE) ofd(OE) lfsck(OE) ost(OE) mgc(OE) osd_ldiskfs(OE) lquota(OE) fid(OE) fld(OE) ksocklnd(OE) ptlrpc(OE) obdclass(OE) lnet(OE) ldiskfs(OE) libcfs(OE) rpcsec_gss_krb5 auth_rpcgss nfsv4 dns_resolver nfs lockd grace fscache rpcrdma ib_isert iscsi_target_mod ib_iser libiscsi scsi_transport_iscsi ib_srpt target_core_mod crc_t10dif crct10dif_generic ib_srp scsi_transport_srp scsi_tgt ib_ipoib rdma_ucm ib_ucm ib_uverbs ib_umad rdma_cm ib_cm iw_cm ib_core sunrpc dm_mod iosf_mbi crc32_pclmul ghash_clmulni_intel ppdev aesni_intel lrw gf128mul glue_helper ablk_helper cryptd i2c_piix4 joydev pcspkr i2c_core virtio_balloon parport_pc parport ip_tables ext4 mbcache jbd2 ata_generic pata_acpi virtio_blk ata_piix 8139too crct10dif_pclmul crct10dif_common libata crc32c_intel
[12653.806512]  virtio_pci virtio_ring serio_raw virtio 8139cp mii floppy [last unloaded: dm_flakey]
[12653.807416] CPU: 0 PID: 26164 Comm: ll_ost00_001 Kdump: loaded Tainted: G           OE  ------------   3.10.0-862.9.1.el7_lustre.x86_64 #1
[12653.808611] Hardware name: Red Hat KVM, BIOS 0.5.1 01/01/2011
[12653.809173] task: ffff9bb3364beeb0 ti: ffff9bb334a30000 task.ti: ffff9bb334a30000
[12653.809891] RIP: 0010:[<ffffffffc0b70057>]  [<ffffffffc0b70057>] lustre_swab_fiemap+0x67/0xa0 [ptlrpc]
[12653.810857] RSP: 0018:ffff9bb334a33bc0  EFLAGS: 00010212
[12653.811380] RAX: ffff9bb33880e000 RBX: 0000000000000000 RCX: 0048c78550ffffff
[12653.812067] RDX: 0000000000003f6a RSI: 0000000000000002 RDI: ffff9bb3387300e8
[12653.812767] RBP: ffff9bb334a33bc0 R08: 00000000000000b8 R09: 00000000000000e8
[12653.813457] R10: 0000000000000000 R11: 0000000000000020 R12: ffffffffc0b6bdc0
[12653.814142] R13: ffffffffc0c663e0 R14: ffff9bb3387300e8 R15: ffffffffc0c6b260
[12653.814833] FS:  0000000000000000(0000) GS:ffff9bb33fc00000(0000) knlGS:0000000000000000
[12653.815620] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[12653.816180] CR2: ffff9bb33880e000 CR3: 0000000079d64000 CR4: 00000000000606f0
[12653.816881] Call Trace:
[12653.817185]  [<ffffffffc0b93917>] __req_capsule_get+0x4c7/0x740 [ptlrpc]
[12653.817869]  [<ffffffffc0b6fff0>] ? lustre_swab_obd_quotactl+0xb0/0xb0 [ptlrpc]
[12653.818617]  [<ffffffffc0b93ba5>] req_capsule_client_get+0x15/0x20 [ptlrpc]
[12653.819322]  [<ffffffffc0edc18e>] ofd_get_info_hdl+0x54e/0x10f0 [ofd]
[12653.819984]  [<ffffffffc0b6c3f2>] ? lustre_msg_get_opc+0x22/0xf0 [ptlrpc]
[12653.820711]  [<ffffffffc0bd6289>] ? tgt_request_preprocess.isra.32+0x299/0x7a0 [ptlrpc]
[12653.821516]  [<ffffffffc0bd727a>] tgt_request_handle+0xaea/0x1580 [ptlrpc]
[12653.822226]  [<ffffffffc0736ee7>] ? libcfs_debug_msg+0x57/0x80 [libcfs]
[12653.822898]  [<ffffffffc0b7a40b>] ptlrpc_server_handle_request+0x24b/0xab0 [ptlrpc]
[12653.823678]  [<ffffffff81cc52ab>] ? __wake_up_common+0x5b/0x90
[12653.824273]  [<ffffffffc0b7dc44>] ptlrpc_main+0xb14/0x1fb0 [ptlrpc]
[12653.824911]  [<ffffffffc0b7d130>] ? ptlrpc_register_service+0xe90/0xe90 [ptlrpc]
[12653.825647]  [<ffffffff81cbb621>] kthread+0xd1/0xe0
[12653.826126]  [<ffffffff81cbb550>] ? insert_kthread_work+0x40/0x40
[12653.826738]  [<ffffffff823205f7>] ret_from_fork_nospec_begin+0x21/0x21
[12653.827375]  [<ffffffff81cbb550>] ? insert_kthread_work+0x40/0x40
[12653.827965] Code: 85 c0 89 47 14 74 52 0f 1f 44 00 00 89 d0 83 c2 01 48 8d 0c c5 00 00 00 00 48 c1 e0 06 48 29 c8 48 8d 44 07 20 48 8b 08 48 0f c9 <48> 89 08 48 8b 48 08 48 0f c9 48 89 48 08 48 8b 48 10 48 0f c9 
[12653.831074] RIP  [<ffffffffc0b70057>] lustre_swab_fiemap+0x67/0xa0 [ptlrpc]
Whamcloud Community JIRA

[LU-11315] Crash in lustre_swab_fiemap
