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.EQJrR/vmlinux [TAINTED] DUMPFILE: /exports/testreports/50430/testresults/conf-sanity2-zfs-centos7_x86_64-centos7_x86_64/oleg260-client-vmcore [PARTIAL DUMP] CPUS: 4 DATE: Tue Apr 1 13:17:51 EDT 2025 UPTIME: 00:04:27 LOAD AVERAGE: 0.18, 0.16, 0.07 TASKS: 150 NODENAME: oleg260-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: 17386 COMMAND: "dd" TASK: ffff88012aa48000 [THREAD_INFO: ffff88012c0a4000] CPU: 3 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 ata_piix module mod: cannot find or load object file for serio_raw 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 crct10dif_pclmul 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 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 glue_helper module mod: cannot find or load object file for ghash_clmulni_intel module mod: cannot find or load object file for ablk_helper 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 rpcsec_gss_krb5 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 cryptd module mod: cannot find or load object file for iosf_mbi module mod: cannot find or load object file for gf128mul module mod: cannot find or load object file for aesni_intel module mod: cannot find or load object file for crc32_pclmul 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 squashfs module mod: cannot find or load object file for crc_t10dif module MODULE NAME BASE SIZE OBJECT FILE ffffffffa027c380 ost ffffffffa0279000 19298 /tmp/crash-anaysis.EQJrR/modules/ost.ko mod: cannot find or load object file for edac_core module mod: cannot find or load object file for sb_edac module ffffffffa02b41a0 fid ffffffffa02a6000 84843 /tmp/crash-anaysis.EQJrR/modules/fid.ko ffffffffa02da360 libcfs ffffffffa02c5000 132619 /tmp/crash-anaysis.EQJrR/modules/libcfs.ko ffffffffa037d020 lnet ffffffffa02e7000 958750 /tmp/crash-anaysis.EQJrR/modules/lnet.ko ffffffffa03e17e0 fld ffffffffa03d3000 88713 /tmp/crash-anaysis.EQJrR/modules/fld.ko ffffffffa04238a0 ksocklnd ffffffffa0405000 182768 /tmp/crash-anaysis.EQJrR/modules/ksocklnd.ko ffffffffa046bde0 ptlrpc_gss ffffffffa0433000 342063 /tmp/crash-anaysis.EQJrR/modules/ptlrpc_gss.ko ffffffffa04b3860 lmv ffffffffa0488000 234767 /tmp/crash-anaysis.EQJrR/modules/lmv.ko ffffffffa04f58a0 mdc ffffffffa04c3000 276564 /tmp/crash-anaysis.EQJrR/modules/mdc.ko mod: cannot find or load object file for kvm_intel module ffffffffa060b580 obdclass ffffffffa053e000 2652163 /tmp/crash-anaysis.EQJrR/modules/obdclass.ko ffffffffa0977aa0 ptlrpc ffffffffa07c7000 2543606 /tmp/crash-anaysis.EQJrR/modules/ptlrpc.ko ffffffffa0a80d40 osc ffffffffa0a35000 427843 /tmp/crash-anaysis.EQJrR/modules/osc.ko ffffffffa0ad9660 lov ffffffffa0a9f000 332217 /tmp/crash-anaysis.EQJrR/modules/lov.ko ffffffffa0b04920 mgc ffffffffa0af2000 109376 /tmp/crash-anaysis.EQJrR/modules/mgc.ko ffffffffa0b27120 obdecho ffffffffa0b0e000 151561 /tmp/crash-anaysis.EQJrR/modules/obdecho.ko ffffffffa0bcc240 lfsck ffffffffa0b35000 782830 /tmp/crash-anaysis.EQJrR/modules/lfsck.ko ffffffffa0c6e280 lquota ffffffffa0c18000 472402 /tmp/crash-anaysis.EQJrR/modules/lquota.ko ffffffffa0cd1120 mgs ffffffffa0c8d000 373732 /tmp/crash-anaysis.EQJrR/modules/mgs.ko ffffffffa0d47000 mdd ffffffffa0cea000 497881 /tmp/crash-anaysis.EQJrR/modules/mdd.ko ffffffffa0e1ece0 mdt ffffffffa0d65000 1023484 /tmp/crash-anaysis.EQJrR/modules/mdt.ko ffffffffa0ed9a60 lod ffffffffa0e60000 660609 /tmp/crash-anaysis.EQJrR/modules/lod.ko ffffffffa0f676c0 ofd ffffffffa0f25000 361788 /tmp/crash-anaysis.EQJrR/modules/ofd.ko ffffffffa0fbd2a0 osp ffffffffa0f7f000 350313 /tmp/crash-anaysis.EQJrR/modules/osp.ko ffffffffa10a19c0 lustre ffffffffa0fd6000 1105717 /tmp/crash-anaysis.EQJrR/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, 0xffff8800ab813e88) 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 90 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, 0xffff8800b34fc8c8) 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 93 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, 0xffff8800b34a6ec8) 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 140 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, 0xffff8800b5a4ac08) 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 243 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, 0xffff8800aa4a3da8) 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_trace_pages(1, 5, 0xffff8800abbf4c08) 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, 0xffff8800b34a6e68) 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, 0xffff8800b34fc4a8) 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 570 total debug pages from 4 CPUs to /tmp/crash-anaysis.EQJrR/lustre.bin