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.x3ujj/vmlinux [TAINTED] DUMPFILE: /exports/testreports/68877/testresults/sanity3-zfs-rocky8.10_x86_64-rocky8.10_x86_64/oleg101-server-vmcore [PARTIAL DUMP] CPUS: 4 DATE: Thu Aug 27 16:23:17 EDT 2026 UPTIME: 02:19:53 LOAD AVERAGE: 1.19, 1.38, 1.42 TASKS: 410 NODENAME: oleg101-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: 58656 COMMAND: "ll_ost_io00_008" TASK: ffff8b3f910b0000 [THREAD_INFO: ffff8b3f910b0000] 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_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 pcspkr 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 ata_piix 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 intel_rapl_msr 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 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 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 ffffffffc0462740 libcfs ffffffffc0442000 225280 /tmp/crash-anaysis.x3ujj/modules/libcfs.ko mod: cannot find or load object file for spl module mod: cannot find or load object file for zfs module ffffffffc0e843c0 lnet ffffffffc0da9000 1490944 /tmp/crash-anaysis.x3ujj/modules/lnet.ko ffffffffc0f3f900 ksocklnd ffffffffc0f16000 270336 /tmp/crash-anaysis.x3ujj/modules/ksocklnd.ko ffffffffc109d840 obdclass ffffffffc0f59000 4399104 /tmp/crash-anaysis.x3ujj/modules/obdclass.ko ffffffffc16180c0 ptlrpc ffffffffc138c000 4173824 /tmp/crash-anaysis.x3ujj/modules/ptlrpc.ko ffffffffc17d6880 ptlrpc_gss ffffffffc1788000 524288 /tmp/crash-anaysis.x3ujj/modules/ptlrpc_gss.ko ffffffffc181bc80 fld ffffffffc1809000 126976 /tmp/crash-anaysis.x3ujj/modules/fld.ko ffffffffc183bac0 fid ffffffffc1829000 126976 /tmp/crash-anaysis.x3ujj/modules/fid.ko ffffffffc185b740 ec ffffffffc1849000 81920 /tmp/crash-anaysis.x3ujj/modules/ec.ko ffffffffc189b080 lmv ffffffffc185e000 372736 /tmp/crash-anaysis.x3ujj/modules/lmv.ko ffffffffc193ad00 osc ffffffffc18ba000 778240 /tmp/crash-anaysis.x3ujj/modules/osc.ko ffffffffc19d1a00 lov ffffffffc1979000 552960 /tmp/crash-anaysis.x3ujj/modules/lov.ko ffffffffc1a4bb80 mdc ffffffffc1a01000 466944 /tmp/crash-anaysis.x3ujj/modules/mdc.ko ffffffffc1a90000 mgc ffffffffc1a74000 184320 /tmp/crash-anaysis.x3ujj/modules/mgc.ko ffffffffc1ac35c0 obdecho ffffffffc1aa2000 225280 /tmp/crash-anaysis.x3ujj/modules/obdecho.ko ffffffffc1b94200 lfsck ffffffffc1ada000 1081344 /tmp/crash-anaysis.x3ujj/modules/lfsck.ko ffffffffc1c63240 lquota ffffffffc1be3000 786432 /tmp/crash-anaysis.x3ujj/modules/lquota.ko ffffffffc1d0eac0 osd_zfs ffffffffc1ca4000 655360 /tmp/crash-anaysis.x3ujj/modules/osd_zfs.ko ffffffffc1da8400 mgs ffffffffc1d45000 626688 /tmp/crash-anaysis.x3ujj/modules/mgs.ko ffffffffc1e5a080 mdd ffffffffc1ddf000 745472 /tmp/crash-anaysis.x3ujj/modules/mdd.ko ffffffffc1fa4840 mdt ffffffffc1e96000 1654784 /tmp/crash-anaysis.x3ujj/modules/mdt.ko ffffffffc20d6480 lod ffffffffc202b000 1052672 /tmp/crash-anaysis.x3ujj/modules/lod.ko ffffffffc219bc40 ofd ffffffffc212d000 688128 /tmp/crash-anaysis.x3ujj/modules/ofd.ko ffffffffc2231f80 osp ffffffffc21d6000 573440 /tmp/crash-anaysis.x3ujj/modules/osp.ko ffffffffc23976c0 lustre ffffffffc2263000 1912832 /tmp/crash-anaysis.x3ujj/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, 0xffff8b3f863c6ee8) 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, 0xffff8b3e87774fc8) 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, 0xffff8b3fbfe785c8) 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, 0xffff8b3e88459b88) 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, 0xffff8b3e87774748) 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, 0xffff8b3e86084408) 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, 0xffff8b3f9024c3e8) 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, 0xffff8b3fbe34c588) 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.x3ujj/lustre.bin