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.QCjG4/vmlinux [TAINTED] DUMPFILE: /exports/testreports/68904/testresults/sanity-special6-zfs-DNE-rocky8.10_x86_64-rocky8.10_x86_64/oleg157-server-vmcore [PARTIAL DUMP] CPUS: 4 DATE: Wed Aug 26 11:41:17 EDT 2026 UPTIME: 00:02:18 LOAD AVERAGE: 1.40, 0.60, 0.23 TASKS: 419 NODENAME: oleg157-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 0000000000000060" PID: 8054 COMMAND: "ll_ost00_002" TASK: ffff9f1fbc42a7c0 [THREAD_INFO: ffff9f1fbc42a7c0] CPU: 0 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 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 pcspkr module mod: cannot find or load object file for serio_raw 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 ata_piix 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 intel_rapl_common module mod: cannot find or load object file for auth_rpcgss module mod: cannot find or load object file for rpcsec_gss_krb5 module mod: cannot find or load object file for rapl module mod: cannot find or load object file for sb_edac module mod: cannot find or load object file for nfsv4 module MODULE NAME BASE SIZE OBJECT FILE ffffffffc07a4c80 fld ffffffffc0792000 126976 /tmp/crash-anaysis.QCjG4/modules/fld.ko ffffffffc07c4740 ec ffffffffc07b2000 81920 /tmp/crash-anaysis.QCjG4/modules/ec.ko mod: cannot find or load object file for spl module mod: cannot find or load object file for zfs module ffffffffc1119740 libcfs ffffffffc10f9000 225280 /tmp/crash-anaysis.QCjG4/modules/libcfs.ko ffffffffc120c3c0 lnet ffffffffc1131000 1490944 /tmp/crash-anaysis.QCjG4/modules/lnet.ko ffffffffc12c7900 ksocklnd ffffffffc129e000 270336 /tmp/crash-anaysis.QCjG4/modules/ksocklnd.ko ffffffffc1427fc0 obdclass ffffffffc12e1000 4415488 /tmp/crash-anaysis.QCjG4/modules/obdclass.ko ffffffffc19a40c0 ptlrpc ffffffffc1718000 4173824 /tmp/crash-anaysis.QCjG4/modules/ptlrpc.ko ffffffffc1b62880 ptlrpc_gss ffffffffc1b14000 524288 /tmp/crash-anaysis.QCjG4/modules/ptlrpc_gss.ko ffffffffc1ba7ac0 fid ffffffffc1b95000 126976 /tmp/crash-anaysis.QCjG4/modules/fid.ko ffffffffc1bf2080 lmv ffffffffc1bb5000 372736 /tmp/crash-anaysis.QCjG4/modules/lmv.ko ffffffffc1c93300 osc ffffffffc1c11000 790528 /tmp/crash-anaysis.QCjG4/modules/osc.ko ffffffffc1d2b9c0 lov ffffffffc1cd3000 552960 /tmp/crash-anaysis.QCjG4/modules/lov.ko ffffffffc1da5b80 mdc ffffffffc1d5b000 466944 /tmp/crash-anaysis.QCjG4/modules/mdc.ko ffffffffc1dea000 mgc ffffffffc1dce000 184320 /tmp/crash-anaysis.QCjG4/modules/mgc.ko ffffffffc1e1d5c0 obdecho ffffffffc1dfc000 225280 /tmp/crash-anaysis.QCjG4/modules/obdecho.ko ffffffffc1eee340 lfsck ffffffffc1e34000 1081344 /tmp/crash-anaysis.QCjG4/modules/lfsck.ko ffffffffc1fbd240 lquota ffffffffc1f3d000 786432 /tmp/crash-anaysis.QCjG4/modules/lquota.ko ffffffffc2069b80 osd_zfs ffffffffc1ffe000 659456 /tmp/crash-anaysis.QCjG4/modules/osd_zfs.ko ffffffffc2103400 mgs ffffffffc20a0000 626688 /tmp/crash-anaysis.QCjG4/modules/mgs.ko ffffffffc21b5080 mdd ffffffffc213a000 745472 /tmp/crash-anaysis.QCjG4/modules/mdd.ko ffffffffc22ff940 mdt ffffffffc21f1000 1654784 /tmp/crash-anaysis.QCjG4/modules/mdt.ko ffffffffc2431480 lod ffffffffc2386000 1056768 /tmp/crash-anaysis.QCjG4/modules/lod.ko ffffffffc24f8e40 ofd ffffffffc2489000 692224 /tmp/crash-anaysis.QCjG4/modules/ofd.ko ffffffffc258ef80 osp ffffffffc2533000 573440 /tmp/crash-anaysis.QCjG4/modules/osp.ko ffffffffc26f44c0 lustre ffffffffc25c0000 1908736 /tmp/crash-anaysis.QCjG4/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, 0xffff9f1f85134668) 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 189 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, 0xffff9f1f854bfa88) 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 202 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, 0xffff9f1f8546b408) 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 163 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, 0xffff9f1f85ba9e48) 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 128 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 682 total debug pages from 4 CPUs to /tmp/crash-anaysis.QCjG4/lustre.bin