Console [hyperion-mds1] log at 2011-07-19 05:00:00 PDT. 2011-07-19 05:57:17 Unable to handle kernel NULL pointer dereference at 0000000000000060 RIP: 2011-07-19 05:57:17 [] generic_make_request+0x28/0x24d 2011-07-19 05:57:17 PGD 0 2011-07-19 05:57:17 Oops: 0000 [1] SMP 2011-07-19 05:57:17 last sysfs file: /devices/pci0000:00/0000:00:0d.0/0000:05:00.0/0000:06:03.1/irq 2011-07-19 05:57:17 CPU 4 2011-07-19 05:57:17 Modules linked in: cmm(U) osd_ldiskfs(U) mdt(U) mdd(U) mds(U) fsfilt_ldiskfs(U) exportfs(U) mgs(U) mgc(U) lustre(U) lov(U) osc(U) lquota(U) mdc(U) fid(U) fld(U) ptlrpc(U) obdclass(U) lvfs(U) ldiskfs(U) jbd2(U) crc16(U) ko2iblnd(U) lnet(U) libcfs(U) ib_srp(U) ib_ipoib(U) rdma_ucm(U) rdma_cm(U) iw_cm(U) ib_addr(U) ib_ucm(U) ib_uverbs(U) ib_umad(U) mlx4_ib(U) mlx4_core(U) ipoib_helper(U) ib_cm(U) ib_sa(U) ib_mad(U) ib_core(U) ipv6(U) xfrm_nalgo(U) crypto_api(U) dm_mirror(U) dm_log(U) dm_multipath(U) scsi_dh(U) dm_mod(U) raid10(U) video(U) backlight(U) sbs(U) power_meter(U) i2c_ec(U) dell_wmi(U) wmi(U) button(U) battery(U) asus_acpi(U) acpi_memhotplug(U) ac(U) parport_pc(U) lp(U) parport(U) sd_mod(U) sg(U) mptsas(U) floppy(U) mptscsih(U) sata_nv(U) mptbase(U) i2c_nforce2(U) libata(U) amd64_edac_mod(U) scsi_transport_sas(U) pcspkr(U) k10temp(U) ohci_hcd(U) i2c_core(U) edac_mc(U) tpm_tis(U) hwmon(U) scsi_mod(U) shpchp(U) tpm(U) tpm_bios(U) serio_raw(U) ide_cd(U) cdrom(U) nfs(U) nfs_acl(U) lockd(U) fscache(U) sunrpc(U) e1000(U) 2011-07-19 05:57:18 Pid: 25454, comm: mdt_325 Tainted: G 2.6.18-238.12.1.el5_lustre #1 2011-07-19 05:57:18 RIP: 0010:[] [] generic_make_request+0x28/0x24d 2011-07-19 05:57:18 RSP: 0018:ffff811d446016d0 EFLAGS: 00010246 2011-07-19 05:57:18 RAX: 0000000000000000 RBX: ffff81111dbdd5c0 RCX: ffffffff8049e800 2011-07-19 05:57:18 RDX: 0000000000000008 RSI: 0000000000000008 RDI: ffff81111dbdd5c0 2011-07-19 05:57:18 RBP: ffff81111dbdd5c0 R08: 0000000000000002 R09: 0000000000000001 2011-07-19 05:57:18 R10: 0000000000000001 R11: 000000000e7547f0 R12: ffff81111dbdd5c0 2011-07-19 05:57:18 R13: ffff812036e73908 R14: 0000000000000040 R15: 0000000000000000 2011-07-19 05:57:18 FS: 00002aaaab01f6e0(0000) GS:ffff811070297540(0000) knlGS:0000000000000000 2011-07-19 05:57:18 CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b 2011-07-19 05:57:18 CR2: 0000000000000060 CR3: 0000001027180000 CR4: 00000000000006e0 2011-07-19 05:57:18 Process mdt_325 (pid: 25454, threadinfo ffff811d44600000, task ffff811d3bb2a040) 2011-07-19 05:57:18 Stack: 0000000000000010 ffff814037964840 0000000000000008 ffffffff800233fa 2011-07-19 05:57:18 0000000000000002 0000000000001000 0000000000000000 0000000000000008 2011-07-19 05:57:18 ffff811d83f20bc0 ffff81111dbdd5c0 0000000000000001 ffff81111dbdd5c0 2011-07-19 05:57:18 Call Trace: 2011-07-19 05:57:18 [] mempool_alloc+0x31/0xe7 2011-07-19 05:57:18 [] submit_bio+0xe4/0xeb 2011-07-19 05:57:18 [] submit_bh+0xee/0x10e 2011-07-19 05:57:18 [] ll_rw_block+0x8c/0xab 2011-07-19 05:57:18 [] :jbd2:__flush_batch+0x1f/0x49 2011-07-19 05:57:18 [] :jbd2:jbd2_log_do_checkpoint+0x2ab/0x47f 2011-07-19 05:57:18 [] :jbd2:__jbd2_log_wait_for_space+0xcb/0x18d 2011-07-19 05:57:18 [] :jbd2:start_this_handle+0x342/0x3cb 2011-07-19 05:57:18 [] autoremove_wake_function+0x0/0x2e 2011-07-19 05:57:18 [] :fld:fld_key_init+0x112/0x190 2011-07-19 05:57:18 [] :jbd2:jbd2_journal_start+0xab/0xdf 2011-07-19 05:57:18 [] :osd_ldiskfs:osd_trans_start+0x2df/0x600 2011-07-19 05:57:18 [] :obdclass:lu_context_init+0x1e4/0x200 2011-07-19 05:57:18 [] :osd_ldiskfs:osd_trans_stop+0x187/0x250 2011-07-19 05:57:18 [] :osd_ldiskfs:osd_object_delete+0x262/0x350 2011-07-19 05:57:18 [] :mdd:mdd_unlink+0xb09/0xbd0 2011-07-19 05:57:18 [] :obdclass:lu_object_free+0x89/0x190 2011-07-19 05:57:18 [] :obdclass:lu_object_put+0x1b3/0x1e0 2011-07-19 05:57:18 [] :mdt:mdt_object_unlock_put+0x7c/0xe0 2011-07-19 05:57:18 [] :lvfs:lprocfs_counter_add+0x32/0x100 2011-07-19 05:57:18 [] :mdt:mdt_reint_unlink+0xd77/0xe00 2011-07-19 05:57:18 [] :mdt:mdt_root_squash+0x33/0x440 2011-07-19 05:57:18 [] :mdt:mdt_unlink_unpack+0x388/0x520 2011-07-19 05:57:18 [] :mdt:mdt_reint_rec+0x7a/0x100 2011-07-19 05:57:18 [] :ptlrpc:lustre_msg_get_flags+0x1f/0x80 2011-07-19 05:57:18 [] :mdt:mdt_reint_internal+0x8f4/0x9b0 2011-07-19 05:57:18 [] :mdt:mdt_reint_opcode+0x8f/0x150 2011-07-19 05:57:18 [] :mdt:mdt_reint+0x82/0x100 2011-07-19 05:57:18 [] :ptlrpc:lustre_msg_get_opc+0x1e/0xf0 2011-07-19 05:57:18 [] :mdt:mdt_handle_common+0x119f/0x1700 2011-07-19 05:57:18 [] :ptlrpc:lustre_msg_get_opc+0x1e/0xf0 2011-07-19 05:57:18 [] :ptlrpc:ptlrpc_server_handle_request+0x8b7/0xf10 2011-07-19 05:57:18 [] lock_timer_base+0x1b/0x3c 2011-07-19 05:57:18 [] __mod_timer+0x100/0x10f 2011-07-19 05:57:18 [] :libcfs:lc_watchdog_touch+0xbf/0x120 2011-07-19 05:57:18 [] remove_wait_queue+0x1c/0x2c 2011-07-19 05:57:18 [] default_wake_function+0x0/0xe 2011-07-19 05:57:18 [] :ptlrpc:ptlrpc_main+0x136e/0x1560 2011-07-19 05:57:18 [] child_rip+0xa/0x11 2011-07-19 05:57:18 [] :ptlrpc:ptlrpc_main+0x0/0x1560 2011-07-19 05:57:18 [] child_rip+0x0/0x11 2011-07-19 05:57:18 2011-07-19 05:57:18 2011-07-19 05:57:18 Code: 48 8b 40 60 48 c1 f8 09 74 26 48 63 54 24 10 48 8b 4d 00 48 2011-07-19 05:57:18 RIP [] generic_make_request+0x28/0x24d 2011-07-19 05:57:18 RSP 2011-07-19 05:57:18 REWRITING MCP55 CFG REG 2011-07-19 05:57:18 CFG = c1 2011-07-19 05:57:18 Linux version 2.6.18-238.12.1.el5_lustre (jenkins@client-3.lab.whamcloud.com) (gcc version 4.1.2 20080704 (Red Hat 4.1.2-50)) #1 SMP Fri Jul 8 17:12:18 PDT 2011