crash 8.0.0++ Copyright (C) 2002-2021 Red Hat, Inc. Copyright (C) 2004, 2005, 2006, 2010 IBM Corporation Copyright (C) 1999-2006 Hewlett-Packard Co Copyright (C) 2005, 2006, 2011, 2012 Fujitsu Limited Copyright (C) 2006, 2007 VA Linux Systems Japan K.K. Copyright (C) 2005, 2011, 2020-2021 NEC Corporation Copyright (C) 1999, 2002, 2007 Silicon Graphics, Inc. Copyright (C) 1999, 2000, 2001, 2002 Mission Critical Linux, Inc. Copyright (C) 2015, 2021 VMware, Inc. This program is free software, covered by the GNU General Public License, and you are welcome to change it and/or distribute copies of it under certain conditions. Enter "help copying" to see the conditions. This program has absolutely no warranty. Enter "help warranty" for details. NOTE: stdin: not a tty GNU gdb (GDB) 10.2 Copyright (C) 2021 Free Software Foundation, Inc. License GPLv3+: GNU GPL version 3 or later This is free software: you are free to change and redistribute it. There is NO WARRANTY, to the extent permitted by law. Type "show copying" and "show warranty" for details. This GDB was configured as "x86_64-pc-linux-gnu". Type "show configuration" for configuration details. Find the GDB manual and other documentation resources online at: . For help, type "help". Type "apropos word" to search for commands related to "word"... please wait... (gathering kmem slab cache data) please wait... (gathering module symbol data) please wait... (gathering task table data) please wait... (determining panic task) KERNEL: /tmp/crash-anaysis.tUPyT/vmlinux [TAINTED] DUMPFILE: /exports/testreports/50430/testresults/conf-sanity3-ldiskfs-DNE-centos7_x86_64-centos7_x86_64/oleg116-client-vmcore [PARTIAL DUMP] CPUS: 4 DATE: Tue Apr 1 14:44:26 EDT 2025 UPTIME: 01:30:59 LOAD AVERAGE: 0.35, 0.31, 0.24 TASKS: 153 NODENAME: oleg116-client.virtnet RELEASE: 3.10.0-7.9-debug VERSION: #1 SMP Sat Mar 26 23:28:42 EDT 2022 MACHINE: x86_64 (2400 Mhz) MEMORY: 4 GB PANIC: "BUG: unable to handle kernel NULL pointer dereference at 000000000000012e" PID: 8587 COMMAND: "dd" TASK: ffff8800b6354440 [THREAD_INFO: ffff88012ffcc000] CPU: 2 STATE: TASK_RUNNING (PANIC) Setting scroll off while initializing PyKdump /usr/local/crash/mpykdump.so: shared object loaded ./lustre.so: shared object loaded mod: cannot find or load object file for libata module mod: cannot find or load object file for crc32c_intel module mod: cannot find or load object file for pata_acpi module mod: cannot find or load object file for crct10dif_pclmul module mod: cannot find or load object file for serio_raw module mod: cannot find or load object file for ata_piix module mod: cannot find or load object file for ata_generic module mod: cannot find or load object file for ip_tables module mod: cannot find or load object file for pcspkr module mod: cannot find or load object file for mbcache module mod: cannot find or load object file for crct10dif_common module mod: cannot find or load object file for jbd2 module mod: cannot find or load object file for ext4 module mod: cannot find or load object file for binfmt_misc module mod: cannot find or load object file for cryptd module mod: cannot find or load object file for gf128mul module mod: cannot find or load object file for ablk_helper module mod: cannot find or load object file for ghash_clmulni_intel module mod: cannot find or load object file for i2c_core module mod: cannot find or load object file for i2c_piix4 module mod: cannot find or load object file for glue_helper module mod: cannot find or load object file for sb_edac module mod: cannot find or load object file for rpcsec_gss_krb5 module mod: cannot find or load object file for lrw module mod: cannot find or load object file for crc32_pclmul module mod: cannot find or load object file for irqbypass module mod: cannot find or load object file for crct10dif_generic module mod: cannot find or load object file for aesni_intel module mod: cannot find or load object file for iosf_mbi module mod: cannot find or load object file for kvm module mod: cannot find or load object file for squashfs module mod: cannot find or load object file for crc_t10dif module MODULE NAME BASE SIZE OBJECT FILE ffffffffa028e380 ost ffffffffa028b000 19298 /tmp/crash-anaysis.tUPyT/modules/ost.ko mod: cannot find or load object file for edac_core module ffffffffa02b31a0 fid ffffffffa02a5000 84843 /tmp/crash-anaysis.tUPyT/modules/fid.ko ffffffffa02d2360 libcfs ffffffffa02bd000 132619 /tmp/crash-anaysis.tUPyT/modules/libcfs.ko ffffffffa0375020 lnet ffffffffa02df000 958750 /tmp/crash-anaysis.tUPyT/modules/lnet.ko ffffffffa03d97e0 fld ffffffffa03cb000 88713 /tmp/crash-anaysis.tUPyT/modules/fld.ko ffffffffa041b8a0 ksocklnd ffffffffa03fd000 182768 /tmp/crash-anaysis.tUPyT/modules/ksocklnd.ko ffffffffa0444120 obdecho ffffffffa042b000 151561 /tmp/crash-anaysis.tUPyT/modules/obdecho.ko mod: cannot find or load object file for kvm_intel module ffffffffa054f580 obdclass ffffffffa0482000 2652163 /tmp/crash-anaysis.tUPyT/modules/obdclass.ko ffffffffa0743de0 ptlrpc_gss ffffffffa070b000 342063 /tmp/crash-anaysis.tUPyT/modules/ptlrpc_gss.ko ffffffffa0914aa0 ptlrpc ffffffffa0764000 2543606 /tmp/crash-anaysis.tUPyT/modules/ptlrpc.ko ffffffffa09fd860 lmv ffffffffa09d2000 234767 /tmp/crash-anaysis.tUPyT/modules/lmv.ko ffffffffa0a58d40 osc ffffffffa0a0d000 427843 /tmp/crash-anaysis.tUPyT/modules/osc.ko ffffffffa0ab1660 lov ffffffffa0a77000 332217 /tmp/crash-anaysis.tUPyT/modules/lov.ko ffffffffa0afc8a0 mdc ffffffffa0aca000 276564 /tmp/crash-anaysis.tUPyT/modules/mdc.ko ffffffffa0b21920 mgc ffffffffa0b0f000 109376 /tmp/crash-anaysis.tUPyT/modules/mgc.ko ffffffffa0bc2240 lfsck ffffffffa0b2b000 782830 /tmp/crash-anaysis.tUPyT/modules/lfsck.ko ffffffffa0c64280 lquota ffffffffa0c0e000 472402 /tmp/crash-anaysis.tUPyT/modules/lquota.ko ffffffffa0cc7120 mgs ffffffffa0c83000 373732 /tmp/crash-anaysis.tUPyT/modules/mgs.ko ffffffffa0d3d000 mdd ffffffffa0ce0000 497881 /tmp/crash-anaysis.tUPyT/modules/mdd.ko ffffffffa0e14ce0 mdt ffffffffa0d5b000 1023484 /tmp/crash-anaysis.tUPyT/modules/mdt.ko ffffffffa0ecfa60 lod ffffffffa0e56000 660609 /tmp/crash-anaysis.tUPyT/modules/lod.ko ffffffffa0f5d6c0 ofd ffffffffa0f1b000 361788 /tmp/crash-anaysis.tUPyT/modules/ofd.ko ffffffffa0fb32a0 osp ffffffffa0f75000 350313 /tmp/crash-anaysis.tUPyT/modules/osp.ko ffffffffa10979c0 lustre ffffffffa0fcc000 1105717 /tmp/crash-anaysis.tUPyT/modules/lustre.ko lustre_walk_cpus(0, 5, 1) cmd p (*cfs_trace_data[0])[0].tcd.tcd_cur_pages // p (*cfs_trace_data[0])[0].tcd.tcd_pages.next lustre_walk_trace_pages(0, 5, 0xffff88012ffd3548) lustre_walk_cpus(0, 5, 2) cmd p (*cfs_trace_data[0])[0].tcd.tcd_cur_daemon_pages // p (*cfs_trace_data[0])[0].tcd.tcd_daemon_pages.next lustre: Dumped 123 debug pages from type 0 - CPU 0 lustre_walk_cpus(1, 5, 1) cmd p (*cfs_trace_data[0])[1].tcd.tcd_cur_pages // p (*cfs_trace_data[0])[1].tcd.tcd_pages.next lustre_walk_trace_pages(1, 5, 0xffff8800accdf688) lustre_walk_cpus(1, 5, 2) cmd p (*cfs_trace_data[0])[1].tcd.tcd_cur_daemon_pages // p (*cfs_trace_data[0])[1].tcd.tcd_daemon_pages.next lustre: Dumped 88 debug pages from type 0 - CPU 1 lustre_walk_cpus(2, 5, 1) cmd p (*cfs_trace_data[0])[2].tcd.tcd_cur_pages // p (*cfs_trace_data[0])[2].tcd.tcd_pages.next lustre_walk_trace_pages(2, 5, 0xffff8800b6d4b308) lustre_walk_cpus(2, 5, 2) cmd p (*cfs_trace_data[0])[2].tcd.tcd_cur_daemon_pages // p (*cfs_trace_data[0])[2].tcd.tcd_daemon_pages.next lustre: Dumped 275 debug pages from type 0 - CPU 2 lustre_walk_cpus(3, 5, 1) cmd p (*cfs_trace_data[0])[3].tcd.tcd_cur_pages // p (*cfs_trace_data[0])[3].tcd.tcd_pages.next lustre_walk_trace_pages(3, 5, 0xffff8800b3558708) lustre_walk_cpus(3, 5, 2) cmd p (*cfs_trace_data[0])[3].tcd.tcd_cur_daemon_pages // p (*cfs_trace_data[0])[3].tcd.tcd_daemon_pages.next lustre: Dumped 70 debug pages from type 0 - CPU 3 lustre_walk_cpus(0, 5, 1) cmd p (*cfs_trace_data[1])[0].tcd.tcd_cur_pages // p (*cfs_trace_data[1])[0].tcd.tcd_pages.next lustre_walk_trace_pages(0, 5, 0xffff8800a842dba8) lustre_walk_cpus(0, 5, 2) cmd p (*cfs_trace_data[1])[0].tcd.tcd_cur_daemon_pages // p (*cfs_trace_data[1])[0].tcd.tcd_daemon_pages.next lustre: Dumped 1 debug pages from type 1 - CPU 0 lustre_walk_cpus(1, 5, 1) cmd p (*cfs_trace_data[1])[1].tcd.tcd_cur_pages // p (*cfs_trace_data[1])[1].tcd.tcd_pages.next lustre_walk_cpus(1, 5, 2) cmd p (*cfs_trace_data[1])[1].tcd.tcd_cur_daemon_pages // p (*cfs_trace_data[1])[1].tcd.tcd_daemon_pages.next lustre: Dumped 0 debug pages from type 1 - CPU 1 lustre_walk_cpus(2, 5, 1) cmd p (*cfs_trace_data[1])[2].tcd.tcd_cur_pages // p (*cfs_trace_data[1])[2].tcd.tcd_pages.next lustre_walk_trace_pages(2, 5, 0xffff8800b582e268) lustre_walk_cpus(2, 5, 2) cmd p (*cfs_trace_data[1])[2].tcd.tcd_cur_daemon_pages // p (*cfs_trace_data[1])[2].tcd.tcd_daemon_pages.next lustre: Dumped 1 debug pages from type 1 - CPU 2 lustre_walk_cpus(3, 5, 1) cmd p (*cfs_trace_data[1])[3].tcd.tcd_cur_pages // p (*cfs_trace_data[1])[3].tcd.tcd_pages.next lustre_walk_trace_pages(3, 5, 0xffff88012a44cc08) lustre_walk_cpus(3, 5, 2) cmd p (*cfs_trace_data[1])[3].tcd.tcd_cur_daemon_pages // p (*cfs_trace_data[1])[3].tcd.tcd_daemon_pages.next lustre: Dumped 1 debug pages from type 1 - CPU 3 lustre_walk_cpus(0, 5, 1) cmd p (*cfs_trace_data[2])[0].tcd.tcd_cur_pages // p (*cfs_trace_data[2])[0].tcd.tcd_pages.next lustre_walk_cpus(0, 5, 2) cmd p (*cfs_trace_data[2])[0].tcd.tcd_cur_daemon_pages // p (*cfs_trace_data[2])[0].tcd.tcd_daemon_pages.next lustre: Dumped 0 debug pages from type 2 - CPU 0 lustre_walk_cpus(1, 5, 1) cmd p (*cfs_trace_data[2])[1].tcd.tcd_cur_pages // p (*cfs_trace_data[2])[1].tcd.tcd_pages.next lustre_walk_cpus(1, 5, 2) cmd p (*cfs_trace_data[2])[1].tcd.tcd_cur_daemon_pages // p (*cfs_trace_data[2])[1].tcd.tcd_daemon_pages.next lustre: Dumped 0 debug pages from type 2 - CPU 1 lustre_walk_cpus(2, 5, 1) cmd p (*cfs_trace_data[2])[2].tcd.tcd_cur_pages // p (*cfs_trace_data[2])[2].tcd.tcd_pages.next lustre_walk_cpus(2, 5, 2) cmd p (*cfs_trace_data[2])[2].tcd.tcd_cur_daemon_pages // p (*cfs_trace_data[2])[2].tcd.tcd_daemon_pages.next lustre: Dumped 0 debug pages from type 2 - CPU 2 lustre_walk_cpus(3, 5, 1) cmd p (*cfs_trace_data[2])[3].tcd.tcd_cur_pages // p (*cfs_trace_data[2])[3].tcd.tcd_pages.next lustre_walk_cpus(3, 5, 2) cmd p (*cfs_trace_data[2])[3].tcd.tcd_cur_daemon_pages // p (*cfs_trace_data[2])[3].tcd.tcd_daemon_pages.next lustre: Dumped 0 debug pages from type 2 - CPU 3 lustre: Dumped 559 total debug pages from 4 CPUs to /tmp/crash-anaysis.tUPyT/lustre.bin