[LU-11184] recovery-small test_57: unable to handle kernel NULL pointer in idle_timeout_show

• Type: Bug
• Resolution: Duplicate
• Priority: Minor
• Severity: 3
• Assignee: WC Triage
• Reporter: Maloo

Description

This issue was created by maloo for Qian Yingjin <[e-mail]>

This issue relates to the following test suite run: https://testing.whamcloud.com/test_sets/b9dbe454-90de-11e8-b0aa-52540065bddc

test_57 failed with the following error:

trevis-39vm1 crashed during recovery-small test_57

The crashe vmcore-dmesg is as follows:

[17526.060843] LustreError: 11497:0:(obd_class.h:1075:obd_statfs()) Device 11 not setup
 [17526.061820] LustreError: 11497:0:(obd_class.h:1075:obd_statfs()) Device 11 not setup
 [17526.062639] LustreError: 11497:0:(obd_class.h:1075:obd_statfs()) Device 11 not setup
 [17526.063545] BUG: unable to handle kernel NULL pointer dereference at 00000000000002dc
 [17526.064444] IP: [<ffffffffc0d7539f>] idle_timeout_show+0x1f/0x30 [osc]
 [17526.065171] PGD 800000007b35e067 PUD 5e483067 PMD 0 
 [17526.065741] Oops: 0000 1 SMP 
 [17526.066123] Modules linked in: lustre(OE) obdecho(OE) mgc(OE) lov(OE) mdc(OE) osc(OE) lmv(OE) fid(OE) fld(OE) ptlrpc_gss(OE) ptlrpc(OE) obdclass(OE) ksocklnd(OE) lnet(OE) libcfs(OE) brd loop 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 iosf_mbi crc32_pclmul ghash_clmulni_intel aesni_intel ppdev lrw gf128mul glue_helper ablk_helper cryptd joydev pcspkr virtio_balloon parport_pc i2c_piix4 i2c_core parport ip_tables ata_generic pata_acpi ext4 mbcache jbd2 ata_piix libata 8139too virtio_blk crct10dif_pclmul crct10dif_common virtio_pci 8139cp
 [17526.074663] crc32c_intel serio_raw virtio_ring virtio mii floppy [last unloaded: libcfs]
 [17526.075501] CPU: 0 PID: 11497 Comm: lctl Kdump: loaded Tainted: G OE ------------ 3.10.0-862.6.3.el7.x86_64 #1
 [17526.076605] Hardware name: Red Hat KVM, BIOS 0.5.1 01/01/2011
 [17526.077185] task: ffff902b51ebcf10 ti: ffff902b68018000 task.ti: ffff902b68018000
 [17526.077932] RIP: 0010:[<ffffffffc0d7539f>] [<ffffffffc0d7539f>] idle_timeout_show+0x1f/0x30 [osc]
 [17526.078857] RSP: 0018:ffff902b6801bde0 EFLAGS: 00010246
 [17526.079398] RAX: 0000000000000000 RBX: ffff902b79209780 RCX: ffffffffc0d75380
 [17526.080114] RDX: 0000000000000000 RSI: ffffffffc0d9c9f7 RDI: ffff902b0057e000
 [17526.080823] RBP: ffff902b6801bde0 R08: ffff902b5e76c090 R09: 0000000000000000
 [17526.081529] R10: 0000000000001000 R11: ffffffff8f9b3aad R12: ffffffffc09ed6a0
 [17526.082242] R13: ffff902b6801bf18 R14: 0000000000000001 R15: ffff902b79209780
 [17526.082950] FS: 00007faee2bc9740(0000) GS:ffff902b7fc00000(0000) knlGS:0000000000000000
 [17526.083760] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
 [17526.084333] CR2: 00000000000002dc CR3: 00000000608ea000 CR4: 00000000000606f0
 [17526.085050] Call Trace:
 [17526.085416] [<ffffffffc09aa4f9>] lustre_attr_show+0x19/0x20 [obdclass]
 [17526.086115] [<ffffffff8faa48cf>] sysfs_kf_seq_show+0xcf/0x1f0
 [17526.086712] [<ffffffff8faa3016>] kernfs_seq_show+0x26/0x30
 [17526.087279] [<ffffffff8fa41b80>] seq_read+0x110/0x3f0
 [17526.087807] [<ffffffff8faa3875>] kernfs_fop_read+0xf5/0x160
 [17526.088388] [<ffffffff8fa1b2ff>] vfs_read+0x9f/0x170
 [17526.088910] [<ffffffff8fa1c1cf>] SyS_read+0x7f/0xf0
 [17526.089431] [<ffffffff8ff206e1>] ? system_call_after_swapgs+0xae/0x146
 [17526.090123] [<ffffffff8ff20795>] system_call_fastpath+0x1c/0x21
 [17526.090737] [<ffffffff8ff206e1>] ? system_call_after_swapgs+0xae/0x146
 [17526.091394] Code: e8 f7 c7 b1 ce 0f 1f 80 00 00 00 00 66 66 66 66 90 55 48 89 d0 48 8b 97 60 f5 ff ff 48 c7 c6 f7 c9 d9 c0 48 89 c7 31 c0 48 89 e5 <8b> 92 dc 02 00 00 e8 66 30 de ce 5d 48 98 c3 66 90 66 66 66 66 
 [17526.094644] RIP [<ffffffffc0d7539f>] idle_timeout_show+0x1f/0x30 [osc]
 [17526.095347] RSP <ffff902b6801bde0>
 [17526.095712] CR2: 00000000000002dc

VVVVVVV DO NOT REMOVE LINES BELOW, Added by Maloo for auto-association VVVVVVV
recovery-small test_57 - trevis-39vm1 crashed during recovery-small test_57

Issue Links

• duplicates: LU-11175 Null pointer dereference in idle_timeout_show recovery-small test 57