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.SjTTC/vmlinux [TAINTED] DUMPFILE: /exports/testreports/70067/testresults/sanity-compr-special2-zfs-DNE-rocky8.10_x86_64-rocky8.10_x86_64/oleg620-server-vmcore [PARTIAL DUMP] CPUS: 4 DATE: Thu Sep 10 16:17:49 EDT 2026 UPTIME: 00:06:29 LOAD AVERAGE: 1.42, 1.42, 0.74 TASKS: 404 NODENAME: oleg620-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: 8101 COMMAND: "ll_ost_io00_002" TASK: ffff923258858000 [THREAD_INFO: ffff923258858000] 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 serio_raw module mod: cannot find or load object file for crc32_pclmul module mod: cannot find or load object file for ata_generic module mod: cannot find or load object file for ghash_clmulni_intel module mod: cannot find or load object file for crct10dif_pclmul module mod: cannot find or load object file for intel_rapl_msr module mod: cannot find or load object file for ata_piix module mod: cannot find or load object file for i2c_piix4 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 crc32c_intel module mod: cannot find or load object file for squashfs module mod: cannot find or load object file for rapl module mod: cannot find or load object file for intel_rapl_common module mod: cannot find or load object file for rpcsec_gss_krb5 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 ffffffffc0433740 libcfs ffffffffc0413000 225280 /tmp/crash-anaysis.SjTTC/modules/libcfs.ko mod: cannot find or load object file for spl module mod: cannot find or load object file for zfs module ffffffffc0e553c0 lnet ffffffffc0d7a000 1490944 /tmp/crash-anaysis.SjTTC/modules/lnet.ko ffffffffc0f10900 ksocklnd ffffffffc0ee7000 270336 /tmp/crash-anaysis.SjTTC/modules/ksocklnd.ko ffffffffc1071180 obdclass ffffffffc0f2a000 4415488 /tmp/crash-anaysis.SjTTC/modules/obdclass.ko ffffffffc15ed0c0 ptlrpc ffffffffc1361000 4173824 /tmp/crash-anaysis.SjTTC/modules/ptlrpc.ko ffffffffc17ab880 ptlrpc_gss ffffffffc175d000 524288 /tmp/crash-anaysis.SjTTC/modules/ptlrpc_gss.ko ffffffffc17f0c80 fld ffffffffc17de000 126976 /tmp/crash-anaysis.SjTTC/modules/fld.ko ffffffffc1810ac0 fid ffffffffc17fe000 126976 /tmp/crash-anaysis.SjTTC/modules/fid.ko ffffffffc1830740 ec ffffffffc181e000 81920 /tmp/crash-anaysis.SjTTC/modules/ec.ko ffffffffc1870080 lmv ffffffffc1833000 372736 /tmp/crash-anaysis.SjTTC/modules/lmv.ko ffffffffc1912480 osc ffffffffc188f000 794624 /tmp/crash-anaysis.SjTTC/modules/osc.ko ffffffffc19aab00 lov ffffffffc1952000 552960 /tmp/crash-anaysis.SjTTC/modules/lov.ko ffffffffc1a24b80 mdc ffffffffc19da000 466944 /tmp/crash-anaysis.SjTTC/modules/mdc.ko ffffffffc1a69000 mgc ffffffffc1a4d000 184320 /tmp/crash-anaysis.SjTTC/modules/mgc.ko ffffffffc1a9c5c0 obdecho ffffffffc1a7b000 225280 /tmp/crash-anaysis.SjTTC/modules/obdecho.ko ffffffffc1b6d340 lfsck ffffffffc1ab3000 1081344 /tmp/crash-anaysis.SjTTC/modules/lfsck.ko ffffffffc1c3c240 lquota ffffffffc1bbc000 786432 /tmp/crash-anaysis.SjTTC/modules/lquota.ko ffffffffc1ce8b80 osd_zfs ffffffffc1c7d000 659456 /tmp/crash-anaysis.SjTTC/modules/osd_zfs.ko ffffffffc1d82400 mgs ffffffffc1d1f000 626688 /tmp/crash-anaysis.SjTTC/modules/mgs.ko ffffffffc1e340c0 mdd ffffffffc1db9000 745472 /tmp/crash-anaysis.SjTTC/modules/mdd.ko ffffffffc1f7e900 mdt ffffffffc1e70000 1654784 /tmp/crash-anaysis.SjTTC/modules/mdt.ko ffffffffc20b2900 lod ffffffffc2005000 1064960 /tmp/crash-anaysis.SjTTC/modules/lod.ko ffffffffc2179e40 ofd ffffffffc210a000 692224 /tmp/crash-anaysis.SjTTC/modules/ofd.ko ffffffffc220ff80 osp ffffffffc21b4000 573440 /tmp/crash-anaysis.SjTTC/modules/osp.ko ffffffffc2377780 lustre ffffffffc2241000 1925120 /tmp/crash-anaysis.SjTTC/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, 0xffff9232619fcd68) 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 237 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, 0xffff923258c22548) 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 207 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, 0xffff923260b340e8) 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 248 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, 0xffff923259109ec8) 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 199 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 891 total debug pages from 4 CPUs to /tmp/crash-anaysis.SjTTC/lustre.bin