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. 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(determining panic task) KERNEL: /tmp/crash-anaysis.YQODx/vmlinux [TAINTED] DUMPFILE: /exports/testreports/70067/testresults/sanity-compr-special6-zfs-DNE-rocky8.10_x86_64-rocky8.10_x86_64/oleg646-server-vmcore [PARTIAL DUMP] CPUS: 4 DATE: Thu Sep 10 16:16:28 EDT 2026 UPTIME: 00:07:09 LOAD AVERAGE: 1.71, 1.49, 0.79 TASKS: 401 NODENAME: oleg646-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: 8096 COMMAND: "ll_ost_io00_002" TASK: ffff8e0def0a0000 [THREAD_INFO: ffff8e0def0a0000] CPU: 2 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_log module mod: cannot find or load object file for dm_region_hash 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 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 pcspkr 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 rapl module mod: cannot find or load object file for ata_generic module mod: cannot find or load object file for dns_resolver module mod: cannot find or load object file for ata_piix module mod: cannot find or load object file for crc32_pclmul module mod: cannot find or load object file for squashfs module mod: cannot find or load object file for sb_edac 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 nfsv4 module mod: cannot find or load object file for auth_rpcgss module MODULE NAME BASE SIZE OBJECT FILE ffffffffc07c7740 libcfs ffffffffc07a7000 225280 /tmp/crash-anaysis.YQODx/modules/libcfs.ko mod: cannot find or load object file for spl module mod: cannot find or load object file for zfs module ffffffffc11e93c0 lnet ffffffffc110e000 1490944 /tmp/crash-anaysis.YQODx/modules/lnet.ko ffffffffc12a4900 ksocklnd ffffffffc127b000 270336 /tmp/crash-anaysis.YQODx/modules/ksocklnd.ko ffffffffc1405180 obdclass ffffffffc12be000 4415488 /tmp/crash-anaysis.YQODx/modules/obdclass.ko ffffffffc19810c0 ptlrpc ffffffffc16f5000 4173824 /tmp/crash-anaysis.YQODx/modules/ptlrpc.ko ffffffffc1b3f880 ptlrpc_gss ffffffffc1af1000 524288 /tmp/crash-anaysis.YQODx/modules/ptlrpc_gss.ko ffffffffc1b84c80 fld ffffffffc1b72000 126976 /tmp/crash-anaysis.YQODx/modules/fld.ko ffffffffc1ba4ac0 fid ffffffffc1b92000 126976 /tmp/crash-anaysis.YQODx/modules/fid.ko ffffffffc1bc4740 ec ffffffffc1bb2000 81920 /tmp/crash-anaysis.YQODx/modules/ec.ko ffffffffc1c04080 lmv ffffffffc1bc7000 372736 /tmp/crash-anaysis.YQODx/modules/lmv.ko ffffffffc1ca6480 osc ffffffffc1c23000 794624 /tmp/crash-anaysis.YQODx/modules/osc.ko ffffffffc1d3eb00 lov ffffffffc1ce6000 552960 /tmp/crash-anaysis.YQODx/modules/lov.ko ffffffffc1db8b80 mdc ffffffffc1d6e000 466944 /tmp/crash-anaysis.YQODx/modules/mdc.ko ffffffffc1dfd000 mgc ffffffffc1de1000 184320 /tmp/crash-anaysis.YQODx/modules/mgc.ko ffffffffc1e305c0 obdecho ffffffffc1e0f000 225280 /tmp/crash-anaysis.YQODx/modules/obdecho.ko ffffffffc1f01340 lfsck ffffffffc1e47000 1081344 /tmp/crash-anaysis.YQODx/modules/lfsck.ko ffffffffc1fd0240 lquota ffffffffc1f50000 786432 /tmp/crash-anaysis.YQODx/modules/lquota.ko ffffffffc207cb80 osd_zfs ffffffffc2011000 659456 /tmp/crash-anaysis.YQODx/modules/osd_zfs.ko ffffffffc2116400 mgs ffffffffc20b3000 626688 /tmp/crash-anaysis.YQODx/modules/mgs.ko ffffffffc21c80c0 mdd ffffffffc214d000 745472 /tmp/crash-anaysis.YQODx/modules/mdd.ko ffffffffc2312900 mdt ffffffffc2204000 1654784 /tmp/crash-anaysis.YQODx/modules/mdt.ko ffffffffc2446900 lod ffffffffc2399000 1064960 /tmp/crash-anaysis.YQODx/modules/lod.ko ffffffffc250de40 ofd ffffffffc249e000 692224 /tmp/crash-anaysis.YQODx/modules/ofd.ko ffffffffc25a3f80 osp ffffffffc2548000 573440 /tmp/crash-anaysis.YQODx/modules/osp.ko ffffffffc270b780 lustre ffffffffc25d5000 1925120 /tmp/crash-anaysis.YQODx/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, 0xffff8e0dc32068a8) 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 205 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, 0xffff8e0dd0d351c8) 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 214 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, 0xffff8e0dc59085e8) 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 236 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, 0xffff8e0dd012af68) 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 268 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_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 0 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_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 0 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_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 0 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 923 total debug pages from 4 CPUs to /tmp/crash-anaysis.YQODx/lustre.bin