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.c0V6Z/vmlinux [TAINTED] DUMPFILE: /exports/testreports/70067/testresults/sanity-compr-special3-zfs-rocky8.10_x86_64-rocky8.10_x86_64/oleg108-server-vmcore [PARTIAL DUMP] CPUS: 4 DATE: Thu Sep 10 16:17:00 EDT 2026 UPTIME: 00:06:26 LOAD AVERAGE: 1.87, 1.53, 0.74 TASKS: 353 NODENAME: oleg108-server.virtnet RELEASE: 4.18.0rh8.10-debug VERSION: #2 SMP Mon Jul 14 01:24:22 EDT 2025 MACHINE: x86_64 (2400 Mhz) MEMORY: 4.1 GB PANIC: "BUG: unable to handle kernel NULL pointer dereference at 000000000000002e" PID: 6709 COMMAND: "ll_ost_io00_002" TASK: ffff8ce0c59ea7c0 [THREAD_INFO: ffff8ce0c59ea7c0] CPU: 1 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 intel_rapl_msr 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 ata_generic module mod: cannot find or load object file for i2c_piix4 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 pcspkr module mod: cannot find or load object file for dns_resolver 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_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 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 ffffffffc069a740 libcfs ffffffffc067a000 225280 /tmp/crash-anaysis.c0V6Z/modules/libcfs.ko mod: cannot find or load object file for spl module mod: cannot find or load object file for zfs module ffffffffc10bc3c0 lnet ffffffffc0fe1000 1490944 /tmp/crash-anaysis.c0V6Z/modules/lnet.ko ffffffffc1177900 ksocklnd ffffffffc114e000 270336 /tmp/crash-anaysis.c0V6Z/modules/ksocklnd.ko ffffffffc12d8180 obdclass ffffffffc1191000 4415488 /tmp/crash-anaysis.c0V6Z/modules/obdclass.ko ffffffffc18540c0 ptlrpc ffffffffc15c8000 4173824 /tmp/crash-anaysis.c0V6Z/modules/ptlrpc.ko ffffffffc1a12880 ptlrpc_gss ffffffffc19c4000 524288 /tmp/crash-anaysis.c0V6Z/modules/ptlrpc_gss.ko ffffffffc1a57c80 fld ffffffffc1a45000 126976 /tmp/crash-anaysis.c0V6Z/modules/fld.ko ffffffffc1a77ac0 fid ffffffffc1a65000 126976 /tmp/crash-anaysis.c0V6Z/modules/fid.ko ffffffffc1a97740 ec ffffffffc1a85000 81920 /tmp/crash-anaysis.c0V6Z/modules/ec.ko ffffffffc1ad7080 lmv ffffffffc1a9a000 372736 /tmp/crash-anaysis.c0V6Z/modules/lmv.ko ffffffffc1b79480 osc ffffffffc1af6000 794624 /tmp/crash-anaysis.c0V6Z/modules/osc.ko ffffffffc1c11b00 lov ffffffffc1bb9000 552960 /tmp/crash-anaysis.c0V6Z/modules/lov.ko ffffffffc1c8bb80 mdc ffffffffc1c41000 466944 /tmp/crash-anaysis.c0V6Z/modules/mdc.ko ffffffffc1cd0000 mgc ffffffffc1cb4000 184320 /tmp/crash-anaysis.c0V6Z/modules/mgc.ko ffffffffc1d035c0 obdecho ffffffffc1ce2000 225280 /tmp/crash-anaysis.c0V6Z/modules/obdecho.ko ffffffffc1dd4340 lfsck ffffffffc1d1a000 1081344 /tmp/crash-anaysis.c0V6Z/modules/lfsck.ko ffffffffc1ea3240 lquota ffffffffc1e23000 786432 /tmp/crash-anaysis.c0V6Z/modules/lquota.ko ffffffffc1f4fb80 osd_zfs ffffffffc1ee4000 659456 /tmp/crash-anaysis.c0V6Z/modules/osd_zfs.ko ffffffffc1fe9400 mgs ffffffffc1f86000 626688 /tmp/crash-anaysis.c0V6Z/modules/mgs.ko ffffffffc209b0c0 mdd ffffffffc2020000 745472 /tmp/crash-anaysis.c0V6Z/modules/mdd.ko ffffffffc21e5900 mdt ffffffffc20d7000 1654784 /tmp/crash-anaysis.c0V6Z/modules/mdt.ko ffffffffc2319900 lod ffffffffc226c000 1064960 /tmp/crash-anaysis.c0V6Z/modules/lod.ko ffffffffc23e0e40 ofd ffffffffc2371000 692224 /tmp/crash-anaysis.c0V6Z/modules/ofd.ko ffffffffc2476f80 osp ffffffffc241b000 573440 /tmp/crash-anaysis.c0V6Z/modules/osp.ko ffffffffc25de780 lustre ffffffffc24a8000 1925120 /tmp/crash-anaysis.c0V6Z/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, 0xffff8ce0d275ab88) 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 116 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, 0xffff8ce0c810e9e8) 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 154 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, 0xffff8ce0d26c3988) 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 149 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, 0xffff8ce0dd5c0cc8) 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 121 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 540 total debug pages from 4 CPUs to /tmp/crash-anaysis.c0V6Z/lustre.bin