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.UGWSs/vmlinux [TAINTED] DUMPFILE: /exports/testreports/68905/testresults/sanity-lfsck-zfs-rocky8.10_x86_64-rocky8.10_x86_64/oleg253-server-vmcore [PARTIAL DUMP] CPUS: 4 DATE: Thu Aug 27 17:52:46 EDT 2026 UPTIME: 00:45:02 LOAD AVERAGE: 1.50, 1.79, 1.79 TASKS: 348 NODENAME: oleg253-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: 82131 COMMAND: "ll_ost_io00_000" TASK: ffff90effe854f80 [THREAD_INFO: ffff90effe854f80] 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 intel_rapl_msr module mod: cannot find or load object file for libata 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 i2c_piix4 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_piix module mod: cannot find or load object file for squashfs 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 sb_edac module mod: cannot find or load object file for dns_resolver 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 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 ffffffffc0435740 libcfs ffffffffc0415000 225280 /tmp/crash-anaysis.UGWSs/modules/libcfs.ko mod: cannot find or load object file for spl module mod: cannot find or load object file for zfs module ffffffffc0e573c0 lnet ffffffffc0d7c000 1490944 /tmp/crash-anaysis.UGWSs/modules/lnet.ko ffffffffc0f12900 ksocklnd ffffffffc0ee9000 270336 /tmp/crash-anaysis.UGWSs/modules/ksocklnd.ko ffffffffc1072fc0 obdclass ffffffffc0f2c000 4415488 /tmp/crash-anaysis.UGWSs/modules/obdclass.ko ffffffffc15ef0c0 ptlrpc ffffffffc1363000 4173824 /tmp/crash-anaysis.UGWSs/modules/ptlrpc.ko ffffffffc17ad880 ptlrpc_gss ffffffffc175f000 524288 /tmp/crash-anaysis.UGWSs/modules/ptlrpc_gss.ko ffffffffc17f2c80 fld ffffffffc17e0000 126976 /tmp/crash-anaysis.UGWSs/modules/fld.ko ffffffffc1812ac0 fid ffffffffc1800000 126976 /tmp/crash-anaysis.UGWSs/modules/fid.ko ffffffffc1832740 ec ffffffffc1820000 81920 /tmp/crash-anaysis.UGWSs/modules/ec.ko ffffffffc1872080 lmv ffffffffc1835000 372736 /tmp/crash-anaysis.UGWSs/modules/lmv.ko ffffffffc1913200 osc ffffffffc1891000 790528 /tmp/crash-anaysis.UGWSs/modules/osc.ko ffffffffc19aba00 lov ffffffffc1953000 552960 /tmp/crash-anaysis.UGWSs/modules/lov.ko ffffffffc1a25b80 mdc ffffffffc19db000 466944 /tmp/crash-anaysis.UGWSs/modules/mdc.ko ffffffffc1a6a000 mgc ffffffffc1a4e000 184320 /tmp/crash-anaysis.UGWSs/modules/mgc.ko ffffffffc1a9d5c0 obdecho ffffffffc1a7c000 225280 /tmp/crash-anaysis.UGWSs/modules/obdecho.ko ffffffffc1b6e340 lfsck ffffffffc1ab4000 1081344 /tmp/crash-anaysis.UGWSs/modules/lfsck.ko ffffffffc1c3d240 lquota ffffffffc1bbd000 786432 /tmp/crash-anaysis.UGWSs/modules/lquota.ko ffffffffc1ce8ac0 osd_zfs ffffffffc1c7e000 655360 /tmp/crash-anaysis.UGWSs/modules/osd_zfs.ko ffffffffc1d82400 mgs ffffffffc1d1f000 626688 /tmp/crash-anaysis.UGWSs/modules/mgs.ko ffffffffc1e34080 mdd ffffffffc1db9000 745472 /tmp/crash-anaysis.UGWSs/modules/mdd.ko ffffffffc1f7e940 mdt ffffffffc1e70000 1654784 /tmp/crash-anaysis.UGWSs/modules/mdt.ko ffffffffc20b0480 lod ffffffffc2005000 1056768 /tmp/crash-anaysis.UGWSs/modules/lod.ko ffffffffc2177e40 ofd ffffffffc2108000 692224 /tmp/crash-anaysis.UGWSs/modules/ofd.ko ffffffffc220df80 osp ffffffffc21b2000 573440 /tmp/crash-anaysis.UGWSs/modules/osp.ko ffffffffc23736c0 lustre ffffffffc223f000 1912832 /tmp/crash-anaysis.UGWSs/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, 0xffff90efc948c8c8) 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 2238 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, 0xffff90efca3c8988) 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 2455 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, 0xffff90efc4f7a348) 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 2312 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, 0xffff90effb235648)