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.Wxrbn/vmlinux [TAINTED] DUMPFILE: /exports/testreports/50430/testresults/sanity-dom-ldiskfs-DNE-centos7_x86_64-centos7_x86_64/oleg217-client-vmcore [PARTIAL DUMP] CPUS: 4 DATE: Tue Apr 1 13:20:36 EDT 2025 UPTIME: 00:07:08 LOAD AVERAGE: 0.95, 0.62, 0.29 TASKS: 164 NODENAME: oleg217-client.virtnet RELEASE: 3.10.0-7.9-debug VERSION: #1 SMP Sat Mar 26 23:28:42 EDT 2022 MACHINE: x86_64 (2399 Mhz) MEMORY: 4 GB PANIC: "BUG: unable to handle kernel NULL pointer dereference at 000000000000012e" PID: 13661 COMMAND: "directio" TASK: ffff88008284b330 [THREAD_INFO: ffff8800a70b0000] CPU: 0 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 ata_piix module mod: cannot find or load object file for ata_generic module mod: cannot find or load object file for crc32c_intel module mod: cannot find or load object file for serio_raw module mod: cannot find or load object file for crct10dif_pclmul module mod: cannot find or load object file for pata_acpi module mod: cannot find or load object file for mbcache module mod: cannot find or load object file for ip_tables module mod: cannot find or load object file for binfmt_misc 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 pcspkr module mod: cannot find or load object file for i2c_core module mod: cannot find or load object file for ghash_clmulni_intel module mod: cannot find or load object file for cryptd module mod: cannot find or load object file for irqbypass module mod: cannot find or load object file for ablk_helper module mod: cannot find or load object file for gf128mul module mod: cannot find or load object file for crc32_pclmul module mod: cannot find or load object file for i2c_piix4 module mod: cannot find or load object file for iosf_mbi module mod: cannot find or load object file for lrw module mod: cannot find or load object file for squashfs module mod: cannot find or load object file for glue_helper module mod: cannot find or load object file for aesni_intel module mod: cannot find or load object file for rpcsec_gss_krb5 module mod: cannot find or load object file for kvm module mod: cannot find or load object file for crct10dif_generic module mod: cannot find or load object file for crc_t10dif module MODULE NAME BASE SIZE OBJECT FILE ffffffffa028c1a0 fid ffffffffa027e000 84843 /tmp/crash-anaysis.Wxrbn/modules/fid.ko mod: cannot find or load object file for edac_core module mod: cannot find or load object file for sb_edac module ffffffffa02c4360 libcfs ffffffffa02af000 132619 /tmp/crash-anaysis.Wxrbn/modules/libcfs.ko ffffffffa0367020 lnet ffffffffa02d1000 958750 /tmp/crash-anaysis.Wxrbn/modules/lnet.ko ffffffffa03cb7e0 fld ffffffffa03bd000 88713 /tmp/crash-anaysis.Wxrbn/modules/fld.ko ffffffffa03d7380 ost ffffffffa03d4000 19298 /tmp/crash-anaysis.Wxrbn/modules/ost.ko ffffffffa040d8a0 ksocklnd ffffffffa03ef000 182768 /tmp/crash-anaysis.Wxrbn/modules/ksocklnd.ko ffffffffa0455de0 ptlrpc_gss ffffffffa041d000 342063 /tmp/crash-anaysis.Wxrbn/modules/ptlrpc_gss.ko ffffffffa049d860 lmv ffffffffa0472000 234767 /tmp/crash-anaysis.Wxrbn/modules/lmv.ko ffffffffa04e7660 lov ffffffffa04ad000 332217 /tmp/crash-anaysis.Wxrbn/modules/lov.ko mod: cannot find or load object file for kvm_intel module ffffffffa0607580 obdclass ffffffffa053a000 2652163 /tmp/crash-anaysis.Wxrbn/modules/obdclass.ko ffffffffa0973aa0 ptlrpc ffffffffa07c3000 2543606 /tmp/crash-anaysis.Wxrbn/modules/ptlrpc.ko ffffffffa0a7cd40 osc ffffffffa0a31000 427843 /tmp/crash-anaysis.Wxrbn/modules/osc.ko ffffffffa0ae08a0 mdc ffffffffa0aae000 276564 /tmp/crash-anaysis.Wxrbn/modules/mdc.ko ffffffffa0b05920 mgc ffffffffa0af3000 109376 /tmp/crash-anaysis.Wxrbn/modules/mgc.ko ffffffffa0b28120 obdecho ffffffffa0b0f000 151561 /tmp/crash-anaysis.Wxrbn/modules/obdecho.ko ffffffffa0bcd240 lfsck ffffffffa0b36000 782830 /tmp/crash-anaysis.Wxrbn/modules/lfsck.ko ffffffffa0c6f280 lquota ffffffffa0c19000 472402 /tmp/crash-anaysis.Wxrbn/modules/lquota.ko ffffffffa0cd2120 mgs ffffffffa0c8e000 373732 /tmp/crash-anaysis.Wxrbn/modules/mgs.ko ffffffffa0d48000 mdd ffffffffa0ceb000 497881 /tmp/crash-anaysis.Wxrbn/modules/mdd.ko ffffffffa0e1fce0 mdt ffffffffa0d66000 1023484 /tmp/crash-anaysis.Wxrbn/modules/mdt.ko ffffffffa0edaa60 lod ffffffffa0e61000 660609 /tmp/crash-anaysis.Wxrbn/modules/lod.ko ffffffffa0f686c0 ofd ffffffffa0f26000 361788 /tmp/crash-anaysis.Wxrbn/modules/ofd.ko ffffffffa0fbe2a0 osp ffffffffa0f80000 350313 /tmp/crash-anaysis.Wxrbn/modules/osp.ko ffffffffa10a29c0 lustre ffffffffa0fd7000 1105717 /tmp/crash-anaysis.Wxrbn/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, 0xffff8800a7532fc8) 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 2716 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, 0xffff8800a874ce08) 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 1997 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, 0xffff8800a9513848) 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 1066 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, 0xffff8800a8cf9828) 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 1370 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, 0xffff8800b6ebcfc8) 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 124 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_trace_pages(1, 5, 0xffff8800ab4e82c8) 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 128 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, 0xffff880130fceda8) 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 99 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, 0xffff880136af5e88) 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 75 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 7575 total debug pages from 4 CPUs to /tmp/crash-anaysis.Wxrbn/lustre.bin