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.lWMqX/vmlinux [TAINTED] DUMPFILE: /exports/testreports/70064/testresults/sanity3-zfs-rocky8.10_x86_64-rocky8.10_x86_64/oleg449-server-vmcore [PARTIAL DUMP] CPUS: 4 DATE: Fri Sep 11 11:09:38 EDT 2026 UPTIME: 02:34:51 LOAD AVERAGE: 1.85, 1.69, 1.49 TASKS: 405 NODENAME: oleg449-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: 98696 COMMAND: "ll_ost_io00_011" TASK: ffff99df14794f80 [THREAD_INFO: ffff99df14794f80] 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_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 pcspkr module mod: cannot find or load object file for libata module mod: cannot find or load object file for ghash_clmulni_intel module mod: cannot find or load object file for intel_rapl_msr 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 serio_raw module mod: cannot find or load object file for dns_resolver module mod: cannot find or load object file for crct10dif_pclmul module mod: cannot find or load object file for ata_piix 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 squashfs module mod: cannot find or load object file for i2c_piix4 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 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 ffffffffc0697740 libcfs ffffffffc0677000 225280 /tmp/crash-anaysis.lWMqX/modules/libcfs.ko mod: cannot find or load object file for spl module mod: cannot find or load object file for zfs module ffffffffc10b93c0 lnet ffffffffc0fde000 1490944 /tmp/crash-anaysis.lWMqX/modules/lnet.ko ffffffffc1174900 ksocklnd ffffffffc114b000 270336 /tmp/crash-anaysis.lWMqX/modules/ksocklnd.ko ffffffffc12d5180 obdclass ffffffffc118e000 4415488 /tmp/crash-anaysis.lWMqX/modules/obdclass.ko ffffffffc18510c0 ptlrpc ffffffffc15c5000 4173824 /tmp/crash-anaysis.lWMqX/modules/ptlrpc.ko ffffffffc1a0f880 ptlrpc_gss ffffffffc19c1000 524288 /tmp/crash-anaysis.lWMqX/modules/ptlrpc_gss.ko ffffffffc1a54c80 fld ffffffffc1a42000 126976 /tmp/crash-anaysis.lWMqX/modules/fld.ko ffffffffc1a74ac0 fid ffffffffc1a62000 126976 /tmp/crash-anaysis.lWMqX/modules/fid.ko ffffffffc1a94740 ec ffffffffc1a82000 81920 /tmp/crash-anaysis.lWMqX/modules/ec.ko ffffffffc1ad4080 lmv ffffffffc1a97000 372736 /tmp/crash-anaysis.lWMqX/modules/lmv.ko ffffffffc1b76540 osc ffffffffc1af3000 798720 /tmp/crash-anaysis.lWMqX/modules/osc.ko ffffffffc1c0fb00 lov ffffffffc1bb7000 552960 /tmp/crash-anaysis.lWMqX/modules/lov.ko ffffffffc1c89b80 mdc ffffffffc1c3f000 466944 /tmp/crash-anaysis.lWMqX/modules/mdc.ko ffffffffc1cce000 mgc ffffffffc1cb2000 184320 /tmp/crash-anaysis.lWMqX/modules/mgc.ko ffffffffc1d015c0 obdecho ffffffffc1ce0000 225280 /tmp/crash-anaysis.lWMqX/modules/obdecho.ko ffffffffc1dd2340 lfsck ffffffffc1d18000 1081344 /tmp/crash-anaysis.lWMqX/modules/lfsck.ko ffffffffc1ea1240 lquota ffffffffc1e21000 786432 /tmp/crash-anaysis.lWMqX/modules/lquota.ko ffffffffc1f4db80 osd_zfs ffffffffc1ee2000 659456 /tmp/crash-anaysis.lWMqX/modules/osd_zfs.ko ffffffffc1fe7400 mgs ffffffffc1f84000 626688 /tmp/crash-anaysis.lWMqX/modules/mgs.ko ffffffffc20990c0 mdd ffffffffc201e000 745472 /tmp/crash-anaysis.lWMqX/modules/mdd.ko ffffffffc21e3900 mdt ffffffffc20d5000 1654784 /tmp/crash-anaysis.lWMqX/modules/mdt.ko ffffffffc2317940 lod ffffffffc226a000 1064960 /tmp/crash-anaysis.lWMqX/modules/lod.ko ffffffffc23dee40 ofd ffffffffc236f000 692224 /tmp/crash-anaysis.lWMqX/modules/ofd.ko ffffffffc2474f80 osp ffffffffc2419000 573440 /tmp/crash-anaysis.lWMqX/modules/osp.ko ffffffffc25dc780 lustre ffffffffc24a6000 1925120 /tmp/crash-anaysis.lWMqX/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, 0xffff99df037fd828) 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, 0xffff99df02089228) 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, 0xffff99df05053008) 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, 0xffff99df0244c368) 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, 0xffff99e03dec0368) 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 128 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, 0xffff99e0062c51a8) 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 128 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, 0xffff99e041efe908) 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 128 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, 0xffff99e0100fdac8) 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 128 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 4608 total debug pages from 4 CPUs to /tmp/crash-anaysis.lWMqX/lustre.bin