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.aQ4BN/vmlinux [TAINTED] DUMPFILE: /exports/testreports/68845/testresults/sanity-compr-special4-zfs-rocky8.10_x86_64-rocky8.10_x86_64/oleg102-server-vmcore [PARTIAL DUMP] CPUS: 4 DATE: Wed Aug 26 07:52:57 EDT 2026 UPTIME: 00:05:21 LOAD AVERAGE: 1.79, 1.40, 0.65 TASKS: 353 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: 6710 COMMAND: "ll_ost_io00_002" TASK: ffff974f9ecb0000 [THREAD_INFO: ffff974f9ecb0000] 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_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 crc32c_intel module mod: cannot find or load object file for crct10dif_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 intel_rapl_msr module mod: cannot find or load object file for serio_raw module mod: cannot find or load object file for crc32_pclmul module mod: cannot find or load object file for pcspkr module mod: cannot find or load object file for dns_resolver module mod: cannot find or load object file for ghash_clmulni_intel 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 sb_edac 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 ffffffffc06a6740 libcfs ffffffffc0686000 225280 /tmp/crash-anaysis.aQ4BN/modules/libcfs.ko mod: cannot find or load object file for spl module mod: cannot find or load object file for zfs module ffffffffc10c83c0 lnet ffffffffc0fed000 1490944 /tmp/crash-anaysis.aQ4BN/modules/lnet.ko ffffffffc1183900 ksocklnd ffffffffc115a000 270336 /tmp/crash-anaysis.aQ4BN/modules/ksocklnd.ko ffffffffc12e1800 obdclass ffffffffc119d000 4395008 /tmp/crash-anaysis.aQ4BN/modules/obdclass.ko ffffffffc185c240 ptlrpc ffffffffc15cf000 4186112 /tmp/crash-anaysis.aQ4BN/modules/ptlrpc.ko ffffffffc1a1c880 ptlrpc_gss ffffffffc19ce000 524288 /tmp/crash-anaysis.aQ4BN/modules/ptlrpc_gss.ko ffffffffc1a61c80 fld ffffffffc1a4f000 126976 /tmp/crash-anaysis.aQ4BN/modules/fld.ko ffffffffc1a81ac0 fid ffffffffc1a6f000 126976 /tmp/crash-anaysis.aQ4BN/modules/fid.ko ffffffffc1aa1740 ec ffffffffc1a8f000 81920 /tmp/crash-anaysis.aQ4BN/modules/ec.ko ffffffffc1ae1080 lmv ffffffffc1aa4000 372736 /tmp/crash-anaysis.aQ4BN/modules/lmv.ko ffffffffc1b80d00 osc ffffffffc1b00000 778240 /tmp/crash-anaysis.aQ4BN/modules/osc.ko ffffffffc1c17a00 lov ffffffffc1bbf000 552960 /tmp/crash-anaysis.aQ4BN/modules/lov.ko ffffffffc1c91b80 mdc ffffffffc1c47000 466944 /tmp/crash-anaysis.aQ4BN/modules/mdc.ko ffffffffc1cd6000 mgc ffffffffc1cba000 184320 /tmp/crash-anaysis.aQ4BN/modules/mgc.ko ffffffffc1d095c0 obdecho ffffffffc1ce8000 225280 /tmp/crash-anaysis.aQ4BN/modules/obdecho.ko ffffffffc1dda200 lfsck ffffffffc1d20000 1081344 /tmp/crash-anaysis.aQ4BN/modules/lfsck.ko ffffffffc1ea9240 lquota ffffffffc1e29000 786432 /tmp/crash-anaysis.aQ4BN/modules/lquota.ko ffffffffc1f54ac0 osd_zfs ffffffffc1eea000 655360 /tmp/crash-anaysis.aQ4BN/modules/osd_zfs.ko ffffffffc1fee400 mgs ffffffffc1f8b000 626688 /tmp/crash-anaysis.aQ4BN/modules/mgs.ko ffffffffc20a0080 mdd ffffffffc2025000 745472 /tmp/crash-anaysis.aQ4BN/modules/mdd.ko ffffffffc21ea880 mdt ffffffffc20dc000 1654784 /tmp/crash-anaysis.aQ4BN/modules/mdt.ko ffffffffc231c480 lod ffffffffc2271000 1052672 /tmp/crash-anaysis.aQ4BN/modules/lod.ko ffffffffc23e3fc0 ofd ffffffffc2373000 696320 /tmp/crash-anaysis.aQ4BN/modules/ofd.ko ffffffffc2479f80 osp ffffffffc241e000 573440 /tmp/crash-anaysis.aQ4BN/modules/osp.ko ffffffffc25df640 lustre ffffffffc24ab000 1908736 /tmp/crash-anaysis.aQ4BN/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, 0xffff974f82fb3468) 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 122 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, 0xffff974f90db4548) 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 108 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, 0xffff974f82fe1808) 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 113 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, 0xffff974f91865ec8) 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 138 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 481 total debug pages from 4 CPUs to /tmp/crash-anaysis.aQ4BN/lustre.bin