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.cZxJk/vmlinux [TAINTED] DUMPFILE: /exports/testreports/68878/testresults/sanity-lfsck-zfs-rocky8.10_x86_64-rocky8.10_x86_64/oleg102-server-vmcore [PARTIAL DUMP] CPUS: 4 DATE: Thu Aug 27 15:11:05 EDT 2026 UPTIME: 00:44:52 LOAD AVERAGE: 1.75, 1.91, 1.92 TASKS: 348 NODENAME: oleg102-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: 82200 COMMAND: "ll_ost_io00_000" TASK: ffff8f5dcb6e8000 [THREAD_INFO: ffff8f5dcb6e8000] 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_region_hash module mod: cannot find or load object file for dm_log 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 crct10dif_pclmul module mod: cannot find or load object file for i2c_piix4 module mod: cannot find or load object file for rapl module mod: cannot find or load object file for ata_piix module mod: cannot find or load object file for crc32c_intel module mod: cannot find or load object file for serio_raw 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 ata_generic module mod: cannot find or load object file for squashfs 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 sb_edac 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 ffffffffc066d740 ec ffffffffc065b000 81920 /tmp/crash-anaysis.cZxJk/modules/ec.ko mod: cannot find or load object file for spl module mod: cannot find or load object file for zfs module ffffffffc0fc2740 libcfs ffffffffc0fa2000 225280 /tmp/crash-anaysis.cZxJk/modules/libcfs.ko ffffffffc10b53c0 lnet ffffffffc0fda000 1490944 /tmp/crash-anaysis.cZxJk/modules/lnet.ko ffffffffc1170900 ksocklnd ffffffffc1147000 270336 /tmp/crash-anaysis.cZxJk/modules/ksocklnd.ko ffffffffc12ce840 obdclass ffffffffc118a000 4399104 /tmp/crash-anaysis.cZxJk/modules/obdclass.ko ffffffffc18490c0 ptlrpc ffffffffc15bd000 4173824 /tmp/crash-anaysis.cZxJk/modules/ptlrpc.ko ffffffffc1a07880 ptlrpc_gss ffffffffc19b9000 524288 /tmp/crash-anaysis.cZxJk/modules/ptlrpc_gss.ko ffffffffc1a4cc80 fld ffffffffc1a3a000 126976 /tmp/crash-anaysis.cZxJk/modules/fld.ko ffffffffc1a6cac0 fid ffffffffc1a5a000 126976 /tmp/crash-anaysis.cZxJk/modules/fid.ko ffffffffc1ab7080 lmv ffffffffc1a7a000 372736 /tmp/crash-anaysis.cZxJk/modules/lmv.ko ffffffffc1b56d00 osc ffffffffc1ad6000 778240 /tmp/crash-anaysis.cZxJk/modules/osc.ko ffffffffc1beda00 lov ffffffffc1b95000 552960 /tmp/crash-anaysis.cZxJk/modules/lov.ko ffffffffc1c67b80 mdc ffffffffc1c1d000 466944 /tmp/crash-anaysis.cZxJk/modules/mdc.ko ffffffffc1cac000 mgc ffffffffc1c90000 184320 /tmp/crash-anaysis.cZxJk/modules/mgc.ko ffffffffc1cdf5c0 obdecho ffffffffc1cbe000 225280 /tmp/crash-anaysis.cZxJk/modules/obdecho.ko ffffffffc1db0200 lfsck ffffffffc1cf6000 1081344 /tmp/crash-anaysis.cZxJk/modules/lfsck.ko ffffffffc1e7f240 lquota ffffffffc1dff000 786432 /tmp/crash-anaysis.cZxJk/modules/lquota.ko ffffffffc1f2aac0 osd_zfs ffffffffc1ec0000 655360 /tmp/crash-anaysis.cZxJk/modules/osd_zfs.ko ffffffffc1fc4400 mgs ffffffffc1f61000 626688 /tmp/crash-anaysis.cZxJk/modules/mgs.ko ffffffffc2076080 mdd ffffffffc1ffb000 745472 /tmp/crash-anaysis.cZxJk/modules/mdd.ko ffffffffc21c0840 mdt ffffffffc20b2000 1654784 /tmp/crash-anaysis.cZxJk/modules/mdt.ko ffffffffc22f2480 lod ffffffffc2247000 1052672 /tmp/crash-anaysis.cZxJk/modules/lod.ko ffffffffc23b7c40 ofd ffffffffc2349000 688128 /tmp/crash-anaysis.cZxJk/modules/ofd.ko ffffffffc244df80 osp ffffffffc23f2000 573440 /tmp/crash-anaysis.cZxJk/modules/osp.ko ffffffffc25b36c0 lustre ffffffffc247f000 1912832 /tmp/crash-anaysis.cZxJk/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, 0xffff8f5dc41672c8) 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 2203 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, 0xffff8f5ec48600e8) 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 2151 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, 0xffff8f5dcb1c40c8) 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 2730 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, 0xffff8f5eff2f3328)