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.TheNh/vmlinux [TAINTED] DUMPFILE: /exports/testreports/68902/testresults/sanity3-zfs-rocky8.10_x86_64-rocky8.10_x86_64/oleg446-server-vmcore [PARTIAL DUMP] CPUS: 4 DATE: Thu Aug 27 19:24:33 EDT 2026 UPTIME: 02:30:11 LOAD AVERAGE: 0.66, 1.52, 1.70 TASKS: 406 NODENAME: oleg446-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: 100631 COMMAND: "ll_ost_io00_012" TASK: ffff924e82f48000 [THREAD_INFO: ffff924e82f48000] 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 crc32c_intel module mod: cannot find or load object file for ata_generic module mod: cannot find or load object file for crct10dif_pclmul module mod: cannot find or load object file for pcspkr module mod: cannot find or load object file for rapl module mod: cannot find or load object file for serio_raw module mod: cannot find or load object file for crc32_pclmul module mod: cannot find or load object file for i2c_piix4 module mod: cannot find or load object file for ghash_clmulni_intel module mod: cannot find or load object file for intel_rapl_common 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 squashfs module mod: cannot find or load object file for sb_edac 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 ffffffffc055c740 libcfs ffffffffc053c000 225280 /tmp/crash-anaysis.TheNh/modules/libcfs.ko mod: cannot find or load object file for spl module mod: cannot find or load object file for zfs module ffffffffc0f7e3c0 lnet ffffffffc0ea3000 1490944 /tmp/crash-anaysis.TheNh/modules/lnet.ko ffffffffc1039900 ksocklnd ffffffffc1010000 270336 /tmp/crash-anaysis.TheNh/modules/ksocklnd.ko ffffffffc1199fc0 obdclass ffffffffc1053000 4415488 /tmp/crash-anaysis.TheNh/modules/obdclass.ko ffffffffc17160c0 ptlrpc ffffffffc148a000 4173824 /tmp/crash-anaysis.TheNh/modules/ptlrpc.ko ffffffffc18d4880 ptlrpc_gss ffffffffc1886000 524288 /tmp/crash-anaysis.TheNh/modules/ptlrpc_gss.ko ffffffffc1919c80 fld ffffffffc1907000 126976 /tmp/crash-anaysis.TheNh/modules/fld.ko ffffffffc1939ac0 fid ffffffffc1927000 126976 /tmp/crash-anaysis.TheNh/modules/fid.ko ffffffffc1959740 ec ffffffffc1947000 81920 /tmp/crash-anaysis.TheNh/modules/ec.ko ffffffffc1999080 lmv ffffffffc195c000 372736 /tmp/crash-anaysis.TheNh/modules/lmv.ko ffffffffc1a3a300 osc ffffffffc19b8000 790528 /tmp/crash-anaysis.TheNh/modules/osc.ko ffffffffc1ad2a00 lov ffffffffc1a7a000 552960 /tmp/crash-anaysis.TheNh/modules/lov.ko ffffffffc1b4cb80 mdc ffffffffc1b02000 466944 /tmp/crash-anaysis.TheNh/modules/mdc.ko ffffffffc1b91000 mgc ffffffffc1b75000 184320 /tmp/crash-anaysis.TheNh/modules/mgc.ko ffffffffc1bc45c0 obdecho ffffffffc1ba3000 225280 /tmp/crash-anaysis.TheNh/modules/obdecho.ko ffffffffc1c95340 lfsck ffffffffc1bdb000 1081344 /tmp/crash-anaysis.TheNh/modules/lfsck.ko ffffffffc1d64240 lquota ffffffffc1ce4000 786432 /tmp/crash-anaysis.TheNh/modules/lquota.ko ffffffffc1e10b80 osd_zfs ffffffffc1da5000 659456 /tmp/crash-anaysis.TheNh/modules/osd_zfs.ko ffffffffc1eaa400 mgs ffffffffc1e47000 626688 /tmp/crash-anaysis.TheNh/modules/mgs.ko ffffffffc1f5c080 mdd ffffffffc1ee1000 745472 /tmp/crash-anaysis.TheNh/modules/mdd.ko ffffffffc20a6940 mdt ffffffffc1f98000 1654784 /tmp/crash-anaysis.TheNh/modules/mdt.ko ffffffffc21d8540 lod ffffffffc212d000 1056768 /tmp/crash-anaysis.TheNh/modules/lod.ko ffffffffc229fe40 ofd ffffffffc2230000 692224 /tmp/crash-anaysis.TheNh/modules/ofd.ko ffffffffc2335f80 osp ffffffffc22da000 573440 /tmp/crash-anaysis.TheNh/modules/osp.ko ffffffffc249b4c0 lustre ffffffffc2367000 1908736 /tmp/crash-anaysis.TheNh/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, 0xffff924e83ae7d48) 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, 0xffff924e827c5548) 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, 0xffff924e83a2d4e8) 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, 0xffff924fbb6c8b08) 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, 0xffff924e82acdca8) 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, 0xffff924e831207a8) 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, 0xffff924f86092428) 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, 0xffff924e8523a648) 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.TheNh/lustre.bin