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.K2Mfg/vmlinux [TAINTED] DUMPFILE: /exports/testreports/70066/testresults/sanity-pfl-zfs-rocky8.10_x86_64-rocky8.10_x86_64/oleg656-server-vmcore [PARTIAL DUMP] CPUS: 4 DATE: Fri Sep 11 10:03:25 EDT 2026 UPTIME: 00:59:24 LOAD AVERAGE: 0.78, 1.03, 1.11 TASKS: 405 NODENAME: oleg656-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: 16890 COMMAND: "ll_ost_io00_010" TASK: ffff9334827d4f80 [THREAD_INFO: ffff9334827d4f80] 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 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 crct10dif_pclmul module mod: cannot find or load object file for intel_rapl_msr 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 sb_edac module mod: cannot find or load object file for rpcsec_gss_krb5 module mod: cannot find or load object file for intel_rapl_common module MODULE NAME BASE SIZE OBJECT FILE ffffffffc042e740 ec ffffffffc041c000 81920 /tmp/crash-anaysis.K2Mfg/modules/ec.ko 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 ffffffffc0611c80 fld ffffffffc05ff000 126976 /tmp/crash-anaysis.K2Mfg/modules/fld.ko mod: cannot find or load object file for spl module mod: cannot find or load object file for zfs module ffffffffc0f6c740 libcfs ffffffffc0f4c000 225280 /tmp/crash-anaysis.K2Mfg/modules/libcfs.ko ffffffffc105f3c0 lnet ffffffffc0f84000 1490944 /tmp/crash-anaysis.K2Mfg/modules/lnet.ko ffffffffc111a900 ksocklnd ffffffffc10f1000 270336 /tmp/crash-anaysis.K2Mfg/modules/ksocklnd.ko ffffffffc127b180 obdclass ffffffffc1134000 4415488 /tmp/crash-anaysis.K2Mfg/modules/obdclass.ko ffffffffc17f70c0 ptlrpc ffffffffc156b000 4173824 /tmp/crash-anaysis.K2Mfg/modules/ptlrpc.ko ffffffffc19b5880 ptlrpc_gss ffffffffc1967000 524288 /tmp/crash-anaysis.K2Mfg/modules/ptlrpc_gss.ko ffffffffc19faac0 fid ffffffffc19e8000 126976 /tmp/crash-anaysis.K2Mfg/modules/fid.ko ffffffffc1a45080 lmv ffffffffc1a08000 372736 /tmp/crash-anaysis.K2Mfg/modules/lmv.ko ffffffffc1ae7540 osc ffffffffc1a64000 798720 /tmp/crash-anaysis.K2Mfg/modules/osc.ko ffffffffc1b80b00 lov ffffffffc1b28000 552960 /tmp/crash-anaysis.K2Mfg/modules/lov.ko ffffffffc1bfab80 mdc ffffffffc1bb0000 466944 /tmp/crash-anaysis.K2Mfg/modules/mdc.ko ffffffffc1c3f000 mgc ffffffffc1c23000 184320 /tmp/crash-anaysis.K2Mfg/modules/mgc.ko ffffffffc1c725c0 obdecho ffffffffc1c51000 225280 /tmp/crash-anaysis.K2Mfg/modules/obdecho.ko ffffffffc1d43340 lfsck ffffffffc1c89000 1081344 /tmp/crash-anaysis.K2Mfg/modules/lfsck.ko ffffffffc1e12240 lquota ffffffffc1d92000 786432 /tmp/crash-anaysis.K2Mfg/modules/lquota.ko ffffffffc1ebeb80 osd_zfs ffffffffc1e53000 659456 /tmp/crash-anaysis.K2Mfg/modules/osd_zfs.ko ffffffffc1f58400 mgs ffffffffc1ef5000 626688 /tmp/crash-anaysis.K2Mfg/modules/mgs.ko ffffffffc200a0c0 mdd ffffffffc1f8f000 745472 /tmp/crash-anaysis.K2Mfg/modules/mdd.ko ffffffffc2154900 mdt ffffffffc2046000 1654784 /tmp/crash-anaysis.K2Mfg/modules/mdt.ko ffffffffc2288900 lod ffffffffc21db000 1064960 /tmp/crash-anaysis.K2Mfg/modules/lod.ko ffffffffc234fe40 ofd ffffffffc22e0000 692224 /tmp/crash-anaysis.K2Mfg/modules/ofd.ko ffffffffc23e5f80 osp ffffffffc238a000 573440 /tmp/crash-anaysis.K2Mfg/modules/osp.ko ffffffffc254d780 lustre ffffffffc2417000 1925120 /tmp/crash-anaysis.K2Mfg/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, 0xffff9335bcb850c8) 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, 0xffff9335bc4ad568) 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, 0xffff9335925fb808) 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, 0xffff933589aecb48) 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_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 4096 total debug pages from 4 CPUs to /tmp/crash-anaysis.K2Mfg/lustre.bin