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.HIgr2/vmlinux [TAINTED] DUMPFILE: /exports/testreports/68874/testresults/sanity-lfsck-zfs-rocky8.10_x86_64-rocky8.10_x86_64/oleg630-server-vmcore [PARTIAL DUMP] CPUS: 4 DATE: Thu Aug 27 13:00:12 EDT 2026 UPTIME: 00:45:44 LOAD AVERAGE: 2.11, 1.69, 1.72 TASKS: 342 NODENAME: oleg630-server.virtnet RELEASE: 4.18.0rh8.10-debug VERSION: #2 SMP Mon Jul 14 01:24:22 EDT 2025 MACHINE: x86_64 (2399 Mhz) MEMORY: 4.1 GB PANIC: "BUG: unable to handle kernel NULL pointer dereference at 000000000000002e" PID: 82195 COMMAND: "ll_ost_io00_000" TASK: ffff947dc445a7c0 [THREAD_INFO: ffff947dc445a7c0] 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 sha512_generic module mod: cannot find or load object file for sha512_ssse3 module mod: cannot find or load object file for dm_mod module mod: cannot find or load object file for dm_region_hash module mod: cannot find or load object file for dm_log module mod: cannot find or load object file for dm_mirror module 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_generic module mod: cannot find or load object file for crct10dif_pclmul module mod: cannot find or load object file for i2c_piix4 module mod: cannot find or load object file for intel_rapl_msr module mod: cannot find or load object file for serio_raw module mod: cannot find or load object file for ghash_clmulni_intel module mod: cannot find or load object file for pcspkr module mod: cannot find or load object file for dns_resolver module mod: cannot find or load object file for crc32_pclmul module mod: cannot find or load object file for rapl module mod: cannot find or load object file for ata_piix module mod: cannot find or load object file for squashfs module mod: cannot find or load object file for rpcsec_gss_krb5 module mod: cannot find or load object file for intel_rapl_common module mod: cannot find or load object file for sb_edac module mod: cannot find or load object file for nfsv4 module mod: cannot find or load object file for auth_rpcgss module MODULE NAME BASE SIZE OBJECT FILE ffffffffc0472740 libcfs ffffffffc0452000 225280 /tmp/crash-anaysis.HIgr2/modules/libcfs.ko mod: cannot find or load object file for spl module mod: cannot find or load object file for zfs module ffffffffc0e943c0 lnet ffffffffc0db9000 1490944 /tmp/crash-anaysis.HIgr2/modules/lnet.ko ffffffffc0f4f900 ksocklnd ffffffffc0f26000 270336 /tmp/crash-anaysis.HIgr2/modules/ksocklnd.ko ffffffffc10ad880 obdclass ffffffffc0f69000 4399104 /tmp/crash-anaysis.HIgr2/modules/obdclass.ko ffffffffc16280c0 ptlrpc ffffffffc139c000 4173824 /tmp/crash-anaysis.HIgr2/modules/ptlrpc.ko ffffffffc17e6880 ptlrpc_gss ffffffffc1798000 524288 /tmp/crash-anaysis.HIgr2/modules/ptlrpc_gss.ko ffffffffc182bc80 fld ffffffffc1819000 126976 /tmp/crash-anaysis.HIgr2/modules/fld.ko ffffffffc184bac0 fid ffffffffc1839000 126976 /tmp/crash-anaysis.HIgr2/modules/fid.ko ffffffffc186b740 ec ffffffffc1859000 81920 /tmp/crash-anaysis.HIgr2/modules/ec.ko ffffffffc18ab080 lmv ffffffffc186e000 372736 /tmp/crash-anaysis.HIgr2/modules/lmv.ko ffffffffc194ad00 osc ffffffffc18ca000 778240 /tmp/crash-anaysis.HIgr2/modules/osc.ko ffffffffc19e1a00 lov ffffffffc1989000 552960 /tmp/crash-anaysis.HIgr2/modules/lov.ko ffffffffc1a5bb80 mdc ffffffffc1a11000 466944 /tmp/crash-anaysis.HIgr2/modules/mdc.ko ffffffffc1aa0000 mgc ffffffffc1a84000 184320 /tmp/crash-anaysis.HIgr2/modules/mgc.ko ffffffffc1ad35c0 obdecho ffffffffc1ab2000 225280 /tmp/crash-anaysis.HIgr2/modules/obdecho.ko ffffffffc1ba4200 lfsck ffffffffc1aea000 1081344 /tmp/crash-anaysis.HIgr2/modules/lfsck.ko ffffffffc1c73240 lquota ffffffffc1bf3000 786432 /tmp/crash-anaysis.HIgr2/modules/lquota.ko ffffffffc1d1eac0 osd_zfs ffffffffc1cb4000 655360 /tmp/crash-anaysis.HIgr2/modules/osd_zfs.ko ffffffffc1db8400 mgs ffffffffc1d55000 626688 /tmp/crash-anaysis.HIgr2/modules/mgs.ko ffffffffc1e6a080 mdd ffffffffc1def000 745472 /tmp/crash-anaysis.HIgr2/modules/mdd.ko ffffffffc1fb4940 mdt ffffffffc1ea6000 1654784 /tmp/crash-anaysis.HIgr2/modules/mdt.ko ffffffffc20e6480 lod ffffffffc203b000 1052672 /tmp/crash-anaysis.HIgr2/modules/lod.ko ffffffffc21abd80 ofd ffffffffc213d000 688128 /tmp/crash-anaysis.HIgr2/modules/ofd.ko ffffffffc2241f80 osp ffffffffc21e6000 573440 /tmp/crash-anaysis.HIgr2/modules/osp.ko ffffffffc23a76c0 lustre ffffffffc2273000 1912832 /tmp/crash-anaysis.HIgr2/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, 0xffff947de9a07068) 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 2190 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, 0xffff947dd0f74c88) 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 2167 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, 0xffff947de1186ca8) 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 2239 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, 0xffff947cc13a1968)