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.YsecK/vmlinux [TAINTED] DUMPFILE: /exports/testreports/50430/testresults/sanity2-zfs-centos7_x86_64-centos7_x86_64/oleg216-client-vmcore [PARTIAL DUMP] CPUS: 4 DATE: Tue Apr 1 13:18:27 EDT 2025 UPTIME: 00:05:04 LOAD AVERAGE: 0.62, 0.36, 0.15 TASKS: 158 NODENAME: oleg216-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: 23891 COMMAND: "dd" TASK: ffff8800b6ee9110 [THREAD_INFO: ffff880088394000] 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 serio_raw module mod: cannot find or load object file for mbcache module mod: cannot find or load object file for pcspkr module mod: cannot find or load object file for crc32c_intel module mod: cannot find or load object file for ata_piix 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 ip_tables module mod: cannot find or load object file for ata_generic 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 ghash_clmulni_intel 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 cryptd module mod: cannot find or load object file for glue_helper 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 irqbypass 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 gf128mul module mod: cannot find or load object file for ablk_helper 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 rpcsec_gss_krb5 module mod: cannot find or load object file for aesni_intel module MODULE NAME BASE SIZE OBJECT FILE ffffffffa01cb380 ost ffffffffa01c8000 19298 /tmp/crash-anaysis.YsecK/modules/ost.ko mod: cannot find or load object file for sb_edac module mod: cannot find or load object file for crc_t10dif module mod: cannot find or load object file for edac_core module ffffffffa0210360 libcfs ffffffffa01fb000 132619 /tmp/crash-anaysis.YsecK/modules/libcfs.ko ffffffffa023b8a0 ksocklnd ffffffffa021d000 182768 /tmp/crash-anaysis.YsecK/modules/ksocklnd.ko ffffffffa02591a0 fid ffffffffa024b000 84843 /tmp/crash-anaysis.YsecK/modules/fid.ko mod: cannot find or load object file for squashfs module mod: cannot find or load object file for kvm module ffffffffa03a3020 lnet ffffffffa030d000 958750 /tmp/crash-anaysis.YsecK/modules/lnet.ko ffffffffa0431de0 ptlrpc_gss ffffffffa03f9000 342063 /tmp/crash-anaysis.YsecK/modules/ptlrpc_gss.ko ffffffffa045c7e0 fld ffffffffa044e000 88713 /tmp/crash-anaysis.YsecK/modules/fld.ko ffffffffa0498860 lmv ffffffffa046d000 234767 /tmp/crash-anaysis.YsecK/modules/lmv.ko ffffffffa04f3d40 osc ffffffffa04a8000 427843 /tmp/crash-anaysis.YsecK/modules/osc.ko mod: cannot find or load object file for kvm_intel module ffffffffa0614580 obdclass ffffffffa0547000 2652163 /tmp/crash-anaysis.YsecK/modules/obdclass.ko ffffffffa0980aa0 ptlrpc ffffffffa07d0000 2543606 /tmp/crash-anaysis.YsecK/modules/ptlrpc.ko ffffffffa0a93660 lov ffffffffa0a59000 332217 /tmp/crash-anaysis.YsecK/modules/lov.ko ffffffffa0af18a0 mdc ffffffffa0abf000 276564 /tmp/crash-anaysis.YsecK/modules/mdc.ko ffffffffa0b16920 mgc ffffffffa0b04000 109376 /tmp/crash-anaysis.YsecK/modules/mgc.ko ffffffffa0b39120 obdecho ffffffffa0b20000 151561 /tmp/crash-anaysis.YsecK/modules/obdecho.ko ffffffffa0bde240 lfsck ffffffffa0b47000 782830 /tmp/crash-anaysis.YsecK/modules/lfsck.ko ffffffffa0c80280 lquota ffffffffa0c2a000 472402 /tmp/crash-anaysis.YsecK/modules/lquota.ko ffffffffa0ce3120 mgs ffffffffa0c9f000 373732 /tmp/crash-anaysis.YsecK/modules/mgs.ko ffffffffa0d59000 mdd ffffffffa0cfc000 497881 /tmp/crash-anaysis.YsecK/modules/mdd.ko ffffffffa0e30ce0 mdt ffffffffa0d77000 1023484 /tmp/crash-anaysis.YsecK/modules/mdt.ko ffffffffa0eeba60 lod ffffffffa0e72000 660609 /tmp/crash-anaysis.YsecK/modules/lod.ko ffffffffa0f796c0 ofd ffffffffa0f37000 361788 /tmp/crash-anaysis.YsecK/modules/ofd.ko ffffffffa0fcf2a0 osp ffffffffa0f91000 350313 /tmp/crash-anaysis.YsecK/modules/osp.ko ffffffffa10b39c0 lustre ffffffffa0fe8000 1105717 /tmp/crash-anaysis.YsecK/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, 0xffff8801368fa1a8) 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, 0xffff8800aa89fe68) 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, 0xffff8800a9768a68) 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, 0xffff8800b66299e8) 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_trace_pages(0, 5, 0xffff8800adf5f1e8) 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 76 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, 0xffff88012dc3b888) 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 54 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, 0xffff8800a87beac8) 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 55 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, 0xffff8800b5ea7568) 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 70 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 4351 total debug pages from 4 CPUs to /tmp/crash-anaysis.YsecK/lustre.bin