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) crash: inconsistent active task indications for CPU 2: runqueue: ffff90414124a7c0 "rcu_sched" (default) current_task: ffff90414126cf80 "swapper/2" KERNEL: /tmp/crash-anaysis.37KQz/vmlinux [TAINTED] DUMPFILE: /exports/testreports/70058/testresults/sanity3-zfs-rocky8.10_x86_64-rocky8.10_x86_64/oleg652-server-vmcore [PARTIAL DUMP] CPUS: 4 DATE: Fri Sep 11 08:17:12 EDT 2026 UPTIME: 02:16:34 LOAD AVERAGE: 1.57, 1.72, 1.55 TASKS: 399 NODENAME: oleg652-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: 41272 COMMAND: "ll_ost_io00_006" TASK: ffff9040420b4f80 [THREAD_INFO: ffff9040420b4f80] 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_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 ghash_clmulni_intel 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 i2c_piix4 module mod: cannot find or load object file for ata_piix module mod: cannot find or load object file for pcspkr module mod: cannot find or load object file for intel_rapl_msr module mod: cannot find or load object file for crct10dif_pclmul 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 sb_edac module mod: cannot find or load object file for intel_rapl_common module mod: cannot find or load object file for rapl module mod: cannot find or load object file for nfsv4 module mod: cannot find or load object file for auth_rpcgss module mod: cannot find or load object file for rpcsec_gss_krb5 module MODULE NAME BASE SIZE OBJECT FILE ffffffffc0727c80 fld ffffffffc0715000 126976 /tmp/crash-anaysis.37KQz/modules/fld.ko ffffffffc0747740 ec ffffffffc0735000 81920 /tmp/crash-anaysis.37KQz/modules/ec.ko mod: cannot find or load object file for spl module mod: cannot find or load object file for zfs module ffffffffc109a740 libcfs ffffffffc107a000 225280 /tmp/crash-anaysis.37KQz/modules/libcfs.ko ffffffffc118d3c0 lnet ffffffffc10b2000 1490944 /tmp/crash-anaysis.37KQz/modules/lnet.ko ffffffffc1248900 ksocklnd ffffffffc121f000 270336 /tmp/crash-anaysis.37KQz/modules/ksocklnd.ko ffffffffc13a9180 obdclass ffffffffc1262000 4415488 /tmp/crash-anaysis.37KQz/modules/obdclass.ko ffffffffc19250c0 ptlrpc ffffffffc1699000 4173824 /tmp/crash-anaysis.37KQz/modules/ptlrpc.ko ffffffffc1ae3880 ptlrpc_gss ffffffffc1a95000 524288 /tmp/crash-anaysis.37KQz/modules/ptlrpc_gss.ko ffffffffc1b28ac0 fid ffffffffc1b16000 126976 /tmp/crash-anaysis.37KQz/modules/fid.ko ffffffffc1b73080 lmv ffffffffc1b36000 372736 /tmp/crash-anaysis.37KQz/modules/lmv.ko ffffffffc1c15580 osc ffffffffc1b92000 798720 /tmp/crash-anaysis.37KQz/modules/osc.ko ffffffffc1caeb00 lov ffffffffc1c56000 552960 /tmp/crash-anaysis.37KQz/modules/lov.ko ffffffffc1d28b80 mdc ffffffffc1cde000 466944 /tmp/crash-anaysis.37KQz/modules/mdc.ko ffffffffc1d6d000 mgc ffffffffc1d51000 184320 /tmp/crash-anaysis.37KQz/modules/mgc.ko ffffffffc1da05c0 obdecho ffffffffc1d7f000 225280 /tmp/crash-anaysis.37KQz/modules/obdecho.ko ffffffffc1e71340 lfsck ffffffffc1db7000 1081344 /tmp/crash-anaysis.37KQz/modules/lfsck.ko ffffffffc1f40240 lquota ffffffffc1ec0000 786432 /tmp/crash-anaysis.37KQz/modules/lquota.ko ffffffffc1fecb80 osd_zfs ffffffffc1f81000 659456 /tmp/crash-anaysis.37KQz/modules/osd_zfs.ko ffffffffc2086400 mgs ffffffffc2023000 626688 /tmp/crash-anaysis.37KQz/modules/mgs.ko ffffffffc21380c0 mdd ffffffffc20bd000 745472 /tmp/crash-anaysis.37KQz/modules/mdd.ko ffffffffc2282900 mdt ffffffffc2174000 1654784 /tmp/crash-anaysis.37KQz/modules/mdt.ko ffffffffc23b6940 lod ffffffffc2309000 1064960 /tmp/crash-anaysis.37KQz/modules/lod.ko ffffffffc247de00 ofd ffffffffc240e000 692224 /tmp/crash-anaysis.37KQz/modules/ofd.ko ffffffffc2513f80 osp ffffffffc24b8000 573440 /tmp/crash-anaysis.37KQz/modules/osp.ko ffffffffc267b780 lustre ffffffffc2545000 1925120 /tmp/crash-anaysis.37KQz/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, 0xffff904041f1d328) 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, 0xffff90414712b748) 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, 0xffff904043241b68) 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, 0xffff90416b2449a8) 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, 0xffff90404346d608) 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, 0xffff904042965c88) 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, 0xffff90414535c2a8) 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, 0xffff9040420e4208) 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.37KQz/lustre.bin