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.m04bH/vmlinux [TAINTED] DUMPFILE: /exports/testreports/70067/testresults/sanity-compr-special10-zfs-rocky8.10_x86_64-rocky8.10_x86_64/oleg431-server-vmcore [PARTIAL DUMP] CPUS: 4 DATE: Thu Sep 10 16:13:16 EDT 2026 UPTIME: 00:05:30 LOAD AVERAGE: 1.61, 1.24, 0.56 TASKS: 358 NODENAME: oleg431-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: 6694 COMMAND: "ll_ost_io00_002" TASK: ffffa0abf75027c0 [THREAD_INFO: ffffa0abf75027c0] 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 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 crct10dif_pclmul 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 ata_piix module mod: cannot find or load object file for crc32c_intel module mod: cannot find or load object file for rapl module mod: cannot find or load object file for ata_generic module mod: cannot find or load object file for squashfs module mod: cannot find or load object file for intel_rapl_msr 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 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 ffffffffc0577c80 fld ffffffffc0565000 126976 /tmp/crash-anaysis.m04bH/modules/fld.ko ffffffffc0597740 ec ffffffffc0585000 81920 /tmp/crash-anaysis.m04bH/modules/ec.ko mod: cannot find or load object file for spl module mod: cannot find or load object file for zfs module ffffffffc0eea740 libcfs ffffffffc0eca000 225280 /tmp/crash-anaysis.m04bH/modules/libcfs.ko ffffffffc0fdd3c0 lnet ffffffffc0f02000 1490944 /tmp/crash-anaysis.m04bH/modules/lnet.ko ffffffffc1098900 ksocklnd ffffffffc106f000 270336 /tmp/crash-anaysis.m04bH/modules/ksocklnd.ko ffffffffc11f9180 obdclass ffffffffc10b2000 4415488 /tmp/crash-anaysis.m04bH/modules/obdclass.ko ffffffffc17750c0 ptlrpc ffffffffc14e9000 4173824 /tmp/crash-anaysis.m04bH/modules/ptlrpc.ko ffffffffc1933880 ptlrpc_gss ffffffffc18e5000 524288 /tmp/crash-anaysis.m04bH/modules/ptlrpc_gss.ko ffffffffc1978ac0 fid ffffffffc1966000 126976 /tmp/crash-anaysis.m04bH/modules/fid.ko ffffffffc19c3080 lmv ffffffffc1986000 372736 /tmp/crash-anaysis.m04bH/modules/lmv.ko ffffffffc1a65480 osc ffffffffc19e2000 794624 /tmp/crash-anaysis.m04bH/modules/osc.ko ffffffffc1afdb00 lov ffffffffc1aa5000 552960 /tmp/crash-anaysis.m04bH/modules/lov.ko ffffffffc1b77b80 mdc ffffffffc1b2d000 466944 /tmp/crash-anaysis.m04bH/modules/mdc.ko ffffffffc1bbc000 mgc ffffffffc1ba0000 184320 /tmp/crash-anaysis.m04bH/modules/mgc.ko ffffffffc1bef5c0 obdecho ffffffffc1bce000 225280 /tmp/crash-anaysis.m04bH/modules/obdecho.ko ffffffffc1cc0340 lfsck ffffffffc1c06000 1081344 /tmp/crash-anaysis.m04bH/modules/lfsck.ko ffffffffc1d8f240 lquota ffffffffc1d0f000 786432 /tmp/crash-anaysis.m04bH/modules/lquota.ko ffffffffc1e3bb80 osd_zfs ffffffffc1dd0000 659456 /tmp/crash-anaysis.m04bH/modules/osd_zfs.ko ffffffffc1ed5400 mgs ffffffffc1e72000 626688 /tmp/crash-anaysis.m04bH/modules/mgs.ko ffffffffc1f870c0 mdd ffffffffc1f0c000 745472 /tmp/crash-anaysis.m04bH/modules/mdd.ko ffffffffc20d1900 mdt ffffffffc1fc3000 1654784 /tmp/crash-anaysis.m04bH/modules/mdt.ko ffffffffc2205900 lod ffffffffc2158000 1064960 /tmp/crash-anaysis.m04bH/modules/lod.ko ffffffffc22cce40 ofd ffffffffc225d000 692224 /tmp/crash-anaysis.m04bH/modules/ofd.ko ffffffffc2362f80 osp ffffffffc2307000 573440 /tmp/crash-anaysis.m04bH/modules/osp.ko ffffffffc24ca780 lustre ffffffffc2394000 1925120 /tmp/crash-anaysis.m04bH/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, 0xffffa0abd116aec8) 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 105 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, 0xffffa0abc3f2a9c8) 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 151 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, 0xffffa0abc90014a8) 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 158 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, 0xffffa0abd12c8f88) 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 126 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 540 total debug pages from 4 CPUs to /tmp/crash-anaysis.m04bH/lustre.bin