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.eyzAX/vmlinux [TAINTED] DUMPFILE: /exports/testreports/68862/testresults/sanity-lfsck-zfs-rocky8.10_x86_64-rocky8.10_x86_64/oleg424-server-vmcore [PARTIAL DUMP] CPUS: 4 DATE: Thu Aug 27 09:15:32 EDT 2026 UPTIME: 00:49:38 LOAD AVERAGE: 2.17, 1.79, 1.80 TASKS: 342 NODENAME: oleg424-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: 86484 COMMAND: "ll_ost_io00_004" TASK: ffff8fc5ac4127c0 [THREAD_INFO: ffff8fc5ac4127c0] CPU: 3 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_mirror 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 intel_rapl_msr 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 crct10dif_pclmul 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 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 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 ffffffffc06b0740 libcfs ffffffffc0690000 225280 /tmp/crash-anaysis.eyzAX/modules/libcfs.ko mod: cannot find or load object file for spl module mod: cannot find or load object file for zfs module ffffffffc10d23c0 lnet ffffffffc0ff7000 1490944 /tmp/crash-anaysis.eyzAX/modules/lnet.ko ffffffffc118d900 ksocklnd ffffffffc1164000 270336 /tmp/crash-anaysis.eyzAX/modules/ksocklnd.ko ffffffffc12eca80 obdclass ffffffffc11a7000 4403200 /tmp/crash-anaysis.eyzAX/modules/obdclass.ko ffffffffc18670c0 ptlrpc ffffffffc15db000 4173824 /tmp/crash-anaysis.eyzAX/modules/ptlrpc.ko ffffffffc1a25880 ptlrpc_gss ffffffffc19d7000 524288 /tmp/crash-anaysis.eyzAX/modules/ptlrpc_gss.ko ffffffffc1a6ac80 fld ffffffffc1a58000 126976 /tmp/crash-anaysis.eyzAX/modules/fld.ko ffffffffc1a8aac0 fid ffffffffc1a78000 126976 /tmp/crash-anaysis.eyzAX/modules/fid.ko ffffffffc1aaa740 ec ffffffffc1a98000 81920 /tmp/crash-anaysis.eyzAX/modules/ec.ko ffffffffc1aea080 lmv ffffffffc1aad000 372736 /tmp/crash-anaysis.eyzAX/modules/lmv.ko ffffffffc1b8b200 osc ffffffffc1b09000 790528 /tmp/crash-anaysis.eyzAX/modules/osc.ko ffffffffc1c23a00 lov ffffffffc1bcb000 552960 /tmp/crash-anaysis.eyzAX/modules/lov.ko ffffffffc1c9db80 mdc ffffffffc1c53000 466944 /tmp/crash-anaysis.eyzAX/modules/mdc.ko ffffffffc1ce2000 mgc ffffffffc1cc6000 184320 /tmp/crash-anaysis.eyzAX/modules/mgc.ko ffffffffc1d155c0 obdecho ffffffffc1cf4000 225280 /tmp/crash-anaysis.eyzAX/modules/obdecho.ko ffffffffc1de6340 lfsck ffffffffc1d2c000 1081344 /tmp/crash-anaysis.eyzAX/modules/lfsck.ko ffffffffc1eb5240 lquota ffffffffc1e35000 786432 /tmp/crash-anaysis.eyzAX/modules/lquota.ko ffffffffc1f60ac0 osd_zfs ffffffffc1ef6000 655360 /tmp/crash-anaysis.eyzAX/modules/osd_zfs.ko ffffffffc1ffa400 mgs ffffffffc1f97000 626688 /tmp/crash-anaysis.eyzAX/modules/mgs.ko ffffffffc20ac080 mdd ffffffffc2031000 745472 /tmp/crash-anaysis.eyzAX/modules/mdd.ko ffffffffc21f6940 mdt ffffffffc20e8000 1654784 /tmp/crash-anaysis.eyzAX/modules/mdt.ko ffffffffc2328480 lod ffffffffc227d000 1052672 /tmp/crash-anaysis.eyzAX/modules/lod.ko ffffffffc23eca40 ofd ffffffffc237f000 679936 /tmp/crash-anaysis.eyzAX/modules/ofd.ko ffffffffc2481f80 osp ffffffffc2426000 573440 /tmp/crash-anaysis.eyzAX/modules/osp.ko ffffffffc25e76c0 lustre ffffffffc24b3000 1912832 /tmp/crash-anaysis.eyzAX/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, 0xffff8fc5a0319228) 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 2314 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, 0xffff8fc5bf011468) 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 2256 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, 0xffff8fc589330dc8) 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 2147 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, 0xffff8fc5ad3d3068)