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.dLWIK/vmlinux [TAINTED] DUMPFILE: /exports/testreports/70067/testresults/sanity-compr-special8-zfs-rocky8.10_x86_64-rocky8.10_x86_64/oleg229-server-vmcore [PARTIAL DUMP] CPUS: 4 DATE: Thu Sep 10 16:13:29 EDT 2026 UPTIME: 00:06:11 LOAD AVERAGE: 1.54, 1.19, 0.57 TASKS: 345 NODENAME: oleg229-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: 6687 COMMAND: "ll_ost_io00_002" TASK: ffffa06650ec8000 [THREAD_INFO: ffffa06650ec8000] 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_mirror 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 intel_rapl_msr 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 i2c_piix4 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 pcspkr module mod: cannot find or load object file for dns_resolver module mod: cannot find or load object file for ata_generic 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 sb_edac 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 mod: cannot find or load object file for rpcsec_gss_krb5 module MODULE NAME BASE SIZE OBJECT FILE ffffffffc0622740 libcfs ffffffffc0602000 225280 /tmp/crash-anaysis.dLWIK/modules/libcfs.ko mod: cannot find or load object file for spl module mod: cannot find or load object file for zfs module ffffffffc10443c0 lnet ffffffffc0f69000 1490944 /tmp/crash-anaysis.dLWIK/modules/lnet.ko ffffffffc10ff900 ksocklnd ffffffffc10d6000 270336 /tmp/crash-anaysis.dLWIK/modules/ksocklnd.ko ffffffffc1260180 obdclass ffffffffc1119000 4415488 /tmp/crash-anaysis.dLWIK/modules/obdclass.ko ffffffffc17dc0c0 ptlrpc ffffffffc1550000 4173824 /tmp/crash-anaysis.dLWIK/modules/ptlrpc.ko ffffffffc199a880 ptlrpc_gss ffffffffc194c000 524288 /tmp/crash-anaysis.dLWIK/modules/ptlrpc_gss.ko ffffffffc19dfc80 fld ffffffffc19cd000 126976 /tmp/crash-anaysis.dLWIK/modules/fld.ko ffffffffc19ffac0 fid ffffffffc19ed000 126976 /tmp/crash-anaysis.dLWIK/modules/fid.ko ffffffffc1a1f740 ec ffffffffc1a0d000 81920 /tmp/crash-anaysis.dLWIK/modules/ec.ko ffffffffc1a5f080 lmv ffffffffc1a22000 372736 /tmp/crash-anaysis.dLWIK/modules/lmv.ko ffffffffc1b01480 osc ffffffffc1a7e000 794624 /tmp/crash-anaysis.dLWIK/modules/osc.ko ffffffffc1b99b00 lov ffffffffc1b41000 552960 /tmp/crash-anaysis.dLWIK/modules/lov.ko ffffffffc1c13b80 mdc ffffffffc1bc9000 466944 /tmp/crash-anaysis.dLWIK/modules/mdc.ko ffffffffc1c58000 mgc ffffffffc1c3c000 184320 /tmp/crash-anaysis.dLWIK/modules/mgc.ko ffffffffc1c8b5c0 obdecho ffffffffc1c6a000 225280 /tmp/crash-anaysis.dLWIK/modules/obdecho.ko ffffffffc1d5c340 lfsck ffffffffc1ca2000 1081344 /tmp/crash-anaysis.dLWIK/modules/lfsck.ko ffffffffc1e2b240 lquota ffffffffc1dab000 786432 /tmp/crash-anaysis.dLWIK/modules/lquota.ko ffffffffc1ed7b80 osd_zfs ffffffffc1e6c000 659456 /tmp/crash-anaysis.dLWIK/modules/osd_zfs.ko ffffffffc1f71400 mgs ffffffffc1f0e000 626688 /tmp/crash-anaysis.dLWIK/modules/mgs.ko ffffffffc20230c0 mdd ffffffffc1fa8000 745472 /tmp/crash-anaysis.dLWIK/modules/mdd.ko ffffffffc216d900 mdt ffffffffc205f000 1654784 /tmp/crash-anaysis.dLWIK/modules/mdt.ko ffffffffc22a1900 lod ffffffffc21f4000 1064960 /tmp/crash-anaysis.dLWIK/modules/lod.ko ffffffffc2368e40 ofd ffffffffc22f9000 692224 /tmp/crash-anaysis.dLWIK/modules/ofd.ko ffffffffc23fef80 osp ffffffffc23a3000 573440 /tmp/crash-anaysis.dLWIK/modules/osp.ko ffffffffc2566780 lustre ffffffffc2430000 1925120 /tmp/crash-anaysis.dLWIK/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, 0xffffa066606d0948) 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, 0xffffa06642f659c8) 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 126 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, 0xffffa06642f591a8) 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 142 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, 0xffffa06648179368) 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 152 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 542 total debug pages from 4 CPUs to /tmp/crash-anaysis.dLWIK/lustre.bin