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.4Wf29/vmlinux [TAINTED] DUMPFILE: /exports/testreports/68902/testresults/sanity-lfsck-zfs-rocky8.10_x86_64-rocky8.10_x86_64/oleg150-server-vmcore [PARTIAL DUMP] CPUS: 4 DATE: Thu Aug 27 17:29:11 EDT 2026 UPTIME: 00:49:23 LOAD AVERAGE: 2.02, 2.01, 1.96 TASKS: 345 NODENAME: oleg150-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: 82186 COMMAND: "ll_ost_io00_000" TASK: ffff8b16c99ecf80 [THREAD_INFO: ffff8b16c99ecf80] 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 ghash_clmulni_intel 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 intel_rapl_msr module mod: cannot find or load object file for dns_resolver 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 ata_generic 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 squashfs module mod: cannot find or load object file for sb_edac 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 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 ffffffffc0425740 libcfs ffffffffc0405000 225280 /tmp/crash-anaysis.4Wf29/modules/libcfs.ko mod: cannot find or load object file for spl module mod: cannot find or load object file for zfs module ffffffffc0e473c0 lnet ffffffffc0d6c000 1490944 /tmp/crash-anaysis.4Wf29/modules/lnet.ko ffffffffc0f02900 ksocklnd ffffffffc0ed9000 270336 /tmp/crash-anaysis.4Wf29/modules/ksocklnd.ko ffffffffc1062fc0 obdclass ffffffffc0f1c000 4415488 /tmp/crash-anaysis.4Wf29/modules/obdclass.ko ffffffffc15df0c0 ptlrpc ffffffffc1353000 4173824 /tmp/crash-anaysis.4Wf29/modules/ptlrpc.ko ffffffffc179d880 ptlrpc_gss ffffffffc174f000 524288 /tmp/crash-anaysis.4Wf29/modules/ptlrpc_gss.ko ffffffffc17e2c80 fld ffffffffc17d0000 126976 /tmp/crash-anaysis.4Wf29/modules/fld.ko ffffffffc1802ac0 fid ffffffffc17f0000 126976 /tmp/crash-anaysis.4Wf29/modules/fid.ko ffffffffc1822740 ec ffffffffc1810000 81920 /tmp/crash-anaysis.4Wf29/modules/ec.ko ffffffffc1862080 lmv ffffffffc1825000 372736 /tmp/crash-anaysis.4Wf29/modules/lmv.ko ffffffffc1903300 osc ffffffffc1881000 790528 /tmp/crash-anaysis.4Wf29/modules/osc.ko ffffffffc199ba00 lov ffffffffc1943000 552960 /tmp/crash-anaysis.4Wf29/modules/lov.ko ffffffffc1a15b80 mdc ffffffffc19cb000 466944 /tmp/crash-anaysis.4Wf29/modules/mdc.ko ffffffffc1a5a000 mgc ffffffffc1a3e000 184320 /tmp/crash-anaysis.4Wf29/modules/mgc.ko ffffffffc1a8d5c0 obdecho ffffffffc1a6c000 225280 /tmp/crash-anaysis.4Wf29/modules/obdecho.ko ffffffffc1b5e340 lfsck ffffffffc1aa4000 1081344 /tmp/crash-anaysis.4Wf29/modules/lfsck.ko ffffffffc1c2d240 lquota ffffffffc1bad000 786432 /tmp/crash-anaysis.4Wf29/modules/lquota.ko ffffffffc1cd9b80 osd_zfs ffffffffc1c6e000 659456 /tmp/crash-anaysis.4Wf29/modules/osd_zfs.ko ffffffffc1d73400 mgs ffffffffc1d10000 626688 /tmp/crash-anaysis.4Wf29/modules/mgs.ko ffffffffc1e25080 mdd ffffffffc1daa000 745472 /tmp/crash-anaysis.4Wf29/modules/mdd.ko ffffffffc1f6f940 mdt ffffffffc1e61000 1654784 /tmp/crash-anaysis.4Wf29/modules/mdt.ko ffffffffc20a1540 lod ffffffffc1ff6000 1056768 /tmp/crash-anaysis.4Wf29/modules/lod.ko ffffffffc2168e40 ofd ffffffffc20f9000 692224 /tmp/crash-anaysis.4Wf29/modules/ofd.ko ffffffffc21fef80 osp ffffffffc21a3000 573440 /tmp/crash-anaysis.4Wf29/modules/osp.ko ffffffffc23644c0 lustre ffffffffc2230000 1908736 /tmp/crash-anaysis.4Wf29/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, 0xffff8b16cecae868) 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 2217 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, 0xffff8b16c5268008) 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 2038 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, 0xffff8b16c6a97648) 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 2642 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, 0xffff8b17c93ef0e8)