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.AZIuc/vmlinux [TAINTED] DUMPFILE: /exports/testreports/68873/testresults/sanity-lfsck-zfs-rocky8.10_x86_64-rocky8.10_x86_64/oleg340-server-vmcore [PARTIAL DUMP] CPUS: 4 DATE: Thu Aug 27 12:47:17 EDT 2026 UPTIME: 00:44:18 LOAD AVERAGE: 1.72, 1.80, 1.69 TASKS: 341 NODENAME: oleg340-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: 82142 COMMAND: "ll_ost_io00_001" TASK: ffffa0ef0f4ba7c0 [THREAD_INFO: ffffa0ef0f4ba7c0] 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 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 pcspkr module mod: cannot find or load object file for sb_edac module mod: cannot find or load object file for serio_raw module mod: cannot find or load object file for ata_piix module mod: cannot find or load object file for i2c_piix4 module mod: cannot find or load object file for intel_rapl_msr 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 squashfs module mod: cannot find or load object file for intel_rapl_common 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 rapl 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 ffffffffc04eec80 fld ffffffffc04dc000 126976 /tmp/crash-anaysis.AZIuc/modules/fld.ko ffffffffc050e740 ec ffffffffc04fc000 81920 /tmp/crash-anaysis.AZIuc/modules/ec.ko mod: cannot find or load object file for spl module mod: cannot find or load object file for zfs module ffffffffc0e61740 libcfs ffffffffc0e41000 225280 /tmp/crash-anaysis.AZIuc/modules/libcfs.ko ffffffffc0f543c0 lnet ffffffffc0e79000 1490944 /tmp/crash-anaysis.AZIuc/modules/lnet.ko ffffffffc100f900 ksocklnd ffffffffc0fe6000 270336 /tmp/crash-anaysis.AZIuc/modules/ksocklnd.ko ffffffffc116d880 obdclass ffffffffc1029000 4399104 /tmp/crash-anaysis.AZIuc/modules/obdclass.ko ffffffffc16e80c0 ptlrpc ffffffffc145c000 4173824 /tmp/crash-anaysis.AZIuc/modules/ptlrpc.ko ffffffffc18a6880 ptlrpc_gss ffffffffc1858000 524288 /tmp/crash-anaysis.AZIuc/modules/ptlrpc_gss.ko ffffffffc18ebac0 fid ffffffffc18d9000 126976 /tmp/crash-anaysis.AZIuc/modules/fid.ko ffffffffc1936080 lmv ffffffffc18f9000 372736 /tmp/crash-anaysis.AZIuc/modules/lmv.ko ffffffffc19d5d00 osc ffffffffc1955000 778240 /tmp/crash-anaysis.AZIuc/modules/osc.ko ffffffffc1a6ca00 lov ffffffffc1a14000 552960 /tmp/crash-anaysis.AZIuc/modules/lov.ko ffffffffc1ae6b80 mdc ffffffffc1a9c000 466944 /tmp/crash-anaysis.AZIuc/modules/mdc.ko ffffffffc1b2b000 mgc ffffffffc1b0f000 184320 /tmp/crash-anaysis.AZIuc/modules/mgc.ko ffffffffc1b5e5c0 obdecho ffffffffc1b3d000 225280 /tmp/crash-anaysis.AZIuc/modules/obdecho.ko ffffffffc1c2f200 lfsck ffffffffc1b75000 1081344 /tmp/crash-anaysis.AZIuc/modules/lfsck.ko ffffffffc1cfe240 lquota ffffffffc1c7e000 786432 /tmp/crash-anaysis.AZIuc/modules/lquota.ko ffffffffc1da9ac0 osd_zfs ffffffffc1d3f000 655360 /tmp/crash-anaysis.AZIuc/modules/osd_zfs.ko ffffffffc1e43400 mgs ffffffffc1de0000 626688 /tmp/crash-anaysis.AZIuc/modules/mgs.ko ffffffffc1ef5080 mdd ffffffffc1e7a000 745472 /tmp/crash-anaysis.AZIuc/modules/mdd.ko ffffffffc203f940 mdt ffffffffc1f31000 1654784 /tmp/crash-anaysis.AZIuc/modules/mdt.ko ffffffffc2171480 lod ffffffffc20c6000 1052672 /tmp/crash-anaysis.AZIuc/modules/lod.ko ffffffffc2236d80 ofd ffffffffc21c8000 688128 /tmp/crash-anaysis.AZIuc/modules/ofd.ko ffffffffc22ccf80 osp ffffffffc2271000 573440 /tmp/crash-anaysis.AZIuc/modules/osp.ko ffffffffc24326c0 lustre ffffffffc22fe000 1912832 /tmp/crash-anaysis.AZIuc/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, 0xffffa0ef065f26a8) 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 2332 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, 0xffffa0f01063b8e8) 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 1932 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, 0xffffa0f016f2ff48) 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 2548 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, 0xffffa0f016d05f88)