[LU-675] panic on recovery-small test 57 - osc_rd_contention_seconds+0x1a/0x30

Sun, 28 May 2017 07:06:48 +0000

looks access to already destroyed object.
BUG: unable to handle kernel NULL pointer dereference at 0000000000000058
IP: [<ffffffffa07dde5a>] osc_rd_contention_seconds+0x1a/0x30 [osc]
PGD 17bbfe067 PUD 186fb1067 PMD 0
Oops: 0000 1 SMP
last sysfs file: /sys/devices/system/cpu/cpu15/cache/index2/shared_cpu_map
CPU 9
Modules linked in: lustre(U) obdfilter(U) ost(U) osd_ldiskfs(U) cmm(U) fsfilt_ldiskfs(U) mdt(U) mdd(U) mds(U) mgs(U) ldiskfs(U) mgc(U) lov(U) osc(U) mdc(U) lmv(U) fid(U) fld(U) lquota(U) ptlrpc(U) obdclass(U) lvfs(U) ksocklnd(U) lnet(U) libcfs(U) jbd fuse nfs fscache nfsd lockd nfs_acl auth_rpcgss exportfs autofs4 ipmi_devintf ipmi_si ipmi_msghandler 8021q garp stp llc fcoe libfcoe libfc scsi_transport_fc scsi_tgt sunrpc cpufreq_ondemand acpi_cpufreq freq_table ib_ipoib rdma_ucm ib_ucm ib_uverbs ib_umad rdma_cm ib_cm iw_cm ib_addr ipv6 ib_sa dm_mirror dm_region_hash dm_log uinput sg serio_raw mlx4_ib ib_mad ib_core mlx4_en mlx4_core i2c_i801 i2c_core iTCO_wdt iTCO_vendor_support i7core_edac edac_core igb dca ext4 mbcache jbd2 sd_mod crc_t10dif pata_acpi ata_generic ata_piix pm8001(U) libsas scsi_transport_sas dm_mod [last unloaded: libcfs]

Modules linked in: lustre(U) obdfilter(U) ost(U) osd_ldiskfs(U) cmm(U) fsfilt_ldiskfs(U) mdt(U) mdd(U) mds(U) mgs(U) ldiskfs(U) mgc(U) lov(U) osc(U) mdc(U) lmv(U) fid(U) fld(U) lquota(U) ptlrpc(U) obdclass(U) lvfs(U) ksocklnd(U) lnet(U) libcfs(U) jbd fuse nfs fscache nfsd lockd nfs_acl auth_rpcgss exportfs autofs4 ipmi_devintf ipmi_si ipmi_msghandler 8021q garp stp llc fcoe libfcoe libfc scsi_transport_fc scsi_tgt sunrpc cpufreq_ondemand acpi_cpufreq freq_table ib_ipoib rdma_ucm ib_ucm ib_uverbs ib_umad rdma_cm ib_cm iw_cm ib_addr ipv6 ib_sa dm_mirror dm_region_hash dm_log uinput sg serio_raw mlx4_ib ib_mad ib_core mlx4_en mlx4_core i2c_i801 i2c_core iTCO_wdt iTCO_vendor_support i7core_edac edac_core igb dca ext4 mbcache jbd2 sd_mod crc_t10dif pata_acpi ata_generic ata_piix pm8001(U) libsas scsi_transport_sas dm_mod [last unloaded: libcfs]
Pid: 28876, comm: lctl Tainted: G M ---------------- 2.6.32-71.29.1.el6.lustre.8.x86_64 #1 X8DTH-i/6/iF/6F
RIP: 0010:[<ffffffffa07dde5a>] [<ffffffffa07dde5a>] osc_rd_contention_seconds+0x1a/0x30 [osc]
RSP: 0018:ffff880193aede38 EFLAGS: 00010282
RAX: 0000000000000000 RBX: ffff880193aedf48 RCX: 0000000000001000
RDX: ffffffffa07ee7b6 RSI: 0000000000001000 RDI: ffff880192c21000
RBP: ffff880193aede38 R08: ffff880193aede64 R09: ffff88030553c4b8
mall test 57q10: 0000000000000002 R11: 000000000000000b R12: 0000000000001000
R1y: 000000000071e960 R14: ffff88032f95b3c0 R15: ffff880192c21000
FS: 00007f5476f36700(0000) GS:ffff880028340000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
CR2: 0000000000000058 CR3: 00000001850fd000 CR4: 00000000000006e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
Process lctl (pid: 28876, threadinfo ffff880193aec000, task ffff8801b16920c0)
Stack:
ffff880193aede98 ffffffffa0d54023 ffff88032f95b438 ffff880192c21000
<0> 0000000000000000 0000000100000000 ffff88018977c200 ffff88032f95b3c0
<0> ffff8801b2006800 000000000071e960 0000000000001000 fffffffffffffffb
Call Trace:
[<ffffffffa0d54023>] lprocfs_fops_read+0xf3/0x1e0 [obdclass]
[<ffffffff811d029e>] proc_reg_read+0x7e/0xc0
[<ffffffff8116df45>] vfs_read+0xb5/0x1a0
[<ffffffff810d4372>] ? audit_syscall_entry+0x272/0x2a0
[<ffffffff8116e081>] sys_read+0x51/0x90
[<ffffffff81013172>] system_call_fastpath+0x16/0x1b
Code: 31 c0 e8 9a 60 a8 e0 c9 c3 0f 1f 84 00 00 00 00 00 55 48 89 e5 0f 1f 44 00 00 49 8b 81 b8 00 00 00 48 c7 c2 b6 e7 7e a0 48 63 f1 <8b> 40 58 89 c1 31 c0 e8 6a 60 a8 e0 c9 c3 0f 1f 84 00 00 00 00
RIP [<ffffffffa07dde5a>] osc_rd_contention_seconds+0x1a/0x30 [osc]
RSP <ffff880193aede38>
CR2: 0000000000000058

Whamcloud Community JIRA

[LU-675] panic on recovery-small test 57 - osc_rd_contention_seconds+0x1a/0x30