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.8ysvw/vmlinux [TAINTED] DUMPFILE: /exports/testreports/70067/testresults/sanity-compr-special5-zfs-rocky8.10_x86_64-rocky8.10_x86_64/oleg607-server-vmcore [PARTIAL DUMP] CPUS: 4 DATE: Thu Sep 10 16:15:00 EDT 2026 UPTIME: 00:05:21 LOAD AVERAGE: 1.29, 1.02, 0.47 TASKS: 357 NODENAME: oleg607-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: 6678 COMMAND: "ll_ost_io00_002" TASK: ffff8fd2f4f78000 [THREAD_INFO: ffff8fd2f4f78000] 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_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 i2c_piix4 module mod: cannot find or load object file for pcspkr module mod: cannot find or load object file for serio_raw module mod: cannot find or load object file for intel_rapl_msr module mod: cannot find or load object file for crct10dif_pclmul module mod: cannot find or load object file for ata_piix module mod: cannot find or load object file for dns_resolver 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 rpcsec_gss_krb5 module mod: cannot find or load object file for sb_edac 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 ffffffffc05a2c80 fld ffffffffc0590000 126976 /tmp/crash-anaysis.8ysvw/modules/fld.ko ffffffffc05c2740 ec ffffffffc05b0000 81920 /tmp/crash-anaysis.8ysvw/modules/ec.ko mod: cannot find or load object file for spl module mod: cannot find or load object file for zfs module ffffffffc0f15740 libcfs ffffffffc0ef5000 225280 /tmp/crash-anaysis.8ysvw/modules/libcfs.ko ffffffffc10083c0 lnet ffffffffc0f2d000 1490944 /tmp/crash-anaysis.8ysvw/modules/lnet.ko ffffffffc10c3900 ksocklnd ffffffffc109a000 270336 /tmp/crash-anaysis.8ysvw/modules/ksocklnd.ko ffffffffc1224180 obdclass ffffffffc10dd000 4415488 /tmp/crash-anaysis.8ysvw/modules/obdclass.ko ffffffffc17a00c0 ptlrpc ffffffffc1514000 4173824 /tmp/crash-anaysis.8ysvw/modules/ptlrpc.ko ffffffffc195e880 ptlrpc_gss ffffffffc1910000 524288 /tmp/crash-anaysis.8ysvw/modules/ptlrpc_gss.ko ffffffffc19a3ac0 fid ffffffffc1991000 126976 /tmp/crash-anaysis.8ysvw/modules/fid.ko ffffffffc19ee080 lmv ffffffffc19b1000 372736 /tmp/crash-anaysis.8ysvw/modules/lmv.ko ffffffffc1a90480 osc ffffffffc1a0d000 794624 /tmp/crash-anaysis.8ysvw/modules/osc.ko ffffffffc1b28b00 lov ffffffffc1ad0000 552960 /tmp/crash-anaysis.8ysvw/modules/lov.ko ffffffffc1ba2b80 mdc ffffffffc1b58000 466944 /tmp/crash-anaysis.8ysvw/modules/mdc.ko ffffffffc1be7000 mgc ffffffffc1bcb000 184320 /tmp/crash-anaysis.8ysvw/modules/mgc.ko ffffffffc1c1a5c0 obdecho ffffffffc1bf9000 225280 /tmp/crash-anaysis.8ysvw/modules/obdecho.ko ffffffffc1ceb340 lfsck ffffffffc1c31000 1081344 /tmp/crash-anaysis.8ysvw/modules/lfsck.ko ffffffffc1dba240 lquota ffffffffc1d3a000 786432 /tmp/crash-anaysis.8ysvw/modules/lquota.ko ffffffffc1e66b80 osd_zfs ffffffffc1dfb000 659456 /tmp/crash-anaysis.8ysvw/modules/osd_zfs.ko ffffffffc1f00400 mgs ffffffffc1e9d000 626688 /tmp/crash-anaysis.8ysvw/modules/mgs.ko ffffffffc1fb20c0 mdd ffffffffc1f37000 745472 /tmp/crash-anaysis.8ysvw/modules/mdd.ko ffffffffc20fc900 mdt ffffffffc1fee000 1654784 /tmp/crash-anaysis.8ysvw/modules/mdt.ko ffffffffc2230900 lod ffffffffc2183000 1064960 /tmp/crash-anaysis.8ysvw/modules/lod.ko ffffffffc22f7e40 ofd ffffffffc2288000 692224 /tmp/crash-anaysis.8ysvw/modules/ofd.ko ffffffffc238df80 osp ffffffffc2332000 573440 /tmp/crash-anaysis.8ysvw/modules/osp.ko ffffffffc24f5780 lustre ffffffffc23bf000 1925120 /tmp/crash-anaysis.8ysvw/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, 0xffff8fd2d05e8128) 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 123 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, 0xffff8fd2c4f6aee8) 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 135 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, 0xffff8fd2d0f3fe68) 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 119 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, 0xffff8fd2c6dc94c8) 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 140 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_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 0 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_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 0 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_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 0 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_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 0 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 517 total debug pages from 4 CPUs to /tmp/crash-anaysis.8ysvw/lustre.bin