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.aJCiy/vmlinux [TAINTED] DUMPFILE: /exports/testreports/50430/testresults/racer-ldiskfs-DNE-centos7_x86_64-centos7_x86_64/oleg133-client-vmcore [PARTIAL DUMP] CPUS: 4 DATE: Tue Apr 1 13:16:29 EDT 2025 UPTIME: 00:03:02 LOAD AVERAGE: 175.95, 43.81, 14.65 TASKS: 1024 NODENAME: oleg133-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: 22427 COMMAND: "lfs" TASK: ffff88009f453330 [THREAD_INFO: ffff88012f570000] CPU: 1 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 crct10dif_common module mod: cannot find or load object file for pata_acpi module mod: cannot find or load object file for ata_generic module mod: cannot find or load object file for mbcache module mod: cannot find or load object file for serio_raw module mod: cannot find or load object file for crc32c_intel module mod: cannot find or load object file for ablk_helper module mod: cannot find or load object file for crct10dif_pclmul module mod: cannot find or load object file for jbd2 module mod: cannot find or load object file for binfmt_misc module mod: cannot find or load object file for ata_piix module mod: cannot find or load object file for ext4 module mod: cannot find or load object file for lrw module mod: cannot find or load object file for i2c_core module mod: cannot find or load object file for pcspkr module mod: cannot find or load object file for ghash_clmulni_intel module mod: cannot find or load object file for ip_tables module mod: cannot find or load object file for cryptd module mod: cannot find or load object file for rpcsec_gss_krb5 module mod: cannot find or load object file for crct10dif_generic module mod: cannot find or load object file for crc32_pclmul module mod: cannot find or load object file for gf128mul module mod: cannot find or load object file for glue_helper module mod: cannot find or load object file for irqbypass module mod: cannot find or load object file for i2c_piix4 module mod: cannot find or load object file for crc_t10dif module MODULE NAME BASE SIZE OBJECT FILE ffffffffa01ab1a0 fid ffffffffa019d000 84843 /tmp/crash-anaysis.aJCiy/modules/fid.ko mod: cannot find or load object file for edac_core module mod: cannot find or load object file for squashfs module mod: cannot find or load object file for aesni_intel module mod: cannot find or load object file for kvm module mod: cannot find or load object file for sb_edac module ffffffffa02ca8a0 ksocklnd ffffffffa02ac000 182768 /tmp/crash-anaysis.aJCiy/modules/ksocklnd.ko ffffffffa02dd380 ost ffffffffa02da000 19298 /tmp/crash-anaysis.aJCiy/modules/ost.ko mod: cannot find or load object file for iosf_mbi module ffffffffa02ff360 libcfs ffffffffa02ea000 132619 /tmp/crash-anaysis.aJCiy/modules/libcfs.ko ffffffffa03a2020 lnet ffffffffa030c000 958750 /tmp/crash-anaysis.aJCiy/modules/lnet.ko ffffffffa0430de0 ptlrpc_gss ffffffffa03f8000 342063 /tmp/crash-anaysis.aJCiy/modules/ptlrpc_gss.ko ffffffffa045b7e0 fld ffffffffa044d000 88713 /tmp/crash-anaysis.aJCiy/modules/fld.ko ffffffffa0497860 lmv ffffffffa046c000 234767 /tmp/crash-anaysis.aJCiy/modules/lmv.ko ffffffffa04cd920 mgc ffffffffa04bb000 109376 /tmp/crash-anaysis.aJCiy/modules/mgc.ko ffffffffa04f0120 obdecho ffffffffa04d7000 151561 /tmp/crash-anaysis.aJCiy/modules/obdecho.ko mod: cannot find or load object file for kvm_intel module ffffffffa060a580 obdclass ffffffffa053d000 2652163 /tmp/crash-anaysis.aJCiy/modules/obdclass.ko ffffffffa0976aa0 ptlrpc ffffffffa07c6000 2543606 /tmp/crash-anaysis.aJCiy/modules/ptlrpc.ko ffffffffa0a7fd40 osc ffffffffa0a34000 427843 /tmp/crash-anaysis.aJCiy/modules/osc.ko ffffffffa0ad8660 lov ffffffffa0a9e000 332217 /tmp/crash-anaysis.aJCiy/modules/lov.ko ffffffffa0b238a0 mdc ffffffffa0af1000 276564 /tmp/crash-anaysis.aJCiy/modules/mdc.ko ffffffffa0bcd240 lfsck ffffffffa0b36000 782830 /tmp/crash-anaysis.aJCiy/modules/lfsck.ko ffffffffa0c6f280 lquota ffffffffa0c19000 472402 /tmp/crash-anaysis.aJCiy/modules/lquota.ko ffffffffa0cec120 mgs ffffffffa0ca8000 373732 /tmp/crash-anaysis.aJCiy/modules/mgs.ko ffffffffa0d62000 mdd ffffffffa0d05000 497881 /tmp/crash-anaysis.aJCiy/modules/mdd.ko ffffffffa0e53ce0 mdt ffffffffa0d9a000 1023484 /tmp/crash-anaysis.aJCiy/modules/mdt.ko ffffffffa0f0ea60 lod ffffffffa0e95000 660609 /tmp/crash-anaysis.aJCiy/modules/lod.ko ffffffffa0f9c6c0 ofd ffffffffa0f5a000 361788 /tmp/crash-anaysis.aJCiy/modules/ofd.ko ffffffffa0ff22a0 osp ffffffffa0fb4000 350313 /tmp/crash-anaysis.aJCiy/modules/osp.ko ffffffffa10d69c0 lustre ffffffffa100b000 1105717 /tmp/crash-anaysis.aJCiy/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, 0xffff8800a90ad908) 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 1024 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, 0xffff88012bde1608) 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 1024 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, 0xffff88009ad3aaa8) 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 1024 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, 0xffff88012c037868) 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 1024 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_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 0 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, 0xffff8800b6e42768) 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 1 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, 0xffff8800b3fba148) 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, 0xffff880136aab448) 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 4099 total debug pages from 4 CPUs to /tmp/crash-anaysis.aJCiy/lustre.bin