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.Ro7Da/vmlinux [TAINTED] DUMPFILE: /exports/testreports/68865/testresults/sanity-pfl-zfs-rocky8.10_x86_64-rocky8.10_x86_64/oleg305-server-vmcore [PARTIAL DUMP] CPUS: 4 DATE: Thu Aug 27 10:44:30 EDT 2026 UPTIME: 00:59:40 LOAD AVERAGE: 1.40, 1.09, 1.04 TASKS: 403 NODENAME: oleg305-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: 14980 COMMAND: "ll_ost_io00_007" TASK: ffff9009c12f4f80 [THREAD_INFO: ffff9009c12f4f80] CPU: 2 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 intel_rapl_msr 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 crc32_pclmul module mod: cannot find or load object file for ata_generic module mod: cannot find or load object file for pcspkr 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_piix 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 serio_raw module mod: cannot find or load object file for squashfs module mod: cannot find or load object file for i2c_piix4 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 mod: cannot find or load object file for rpcsec_gss_krb5 module MODULE NAME BASE SIZE OBJECT FILE ffffffffc044cc80 fld ffffffffc043a000 126976 /tmp/crash-anaysis.Ro7Da/modules/fld.ko ffffffffc046c740 ec ffffffffc045a000 81920 /tmp/crash-anaysis.Ro7Da/modules/ec.ko mod: cannot find or load object file for spl module mod: cannot find or load object file for zfs module ffffffffc0dbf740 libcfs ffffffffc0d9f000 225280 /tmp/crash-anaysis.Ro7Da/modules/libcfs.ko ffffffffc0eb23c0 lnet ffffffffc0dd7000 1490944 /tmp/crash-anaysis.Ro7Da/modules/lnet.ko ffffffffc0f6d900 ksocklnd ffffffffc0f44000 270336 /tmp/crash-anaysis.Ro7Da/modules/ksocklnd.ko ffffffffc10cca80 obdclass ffffffffc0f87000 4403200 /tmp/crash-anaysis.Ro7Da/modules/obdclass.ko ffffffffc16470c0 ptlrpc ffffffffc13bb000 4173824 /tmp/crash-anaysis.Ro7Da/modules/ptlrpc.ko ffffffffc1805880 ptlrpc_gss ffffffffc17b7000 524288 /tmp/crash-anaysis.Ro7Da/modules/ptlrpc_gss.ko ffffffffc184aac0 fid ffffffffc1838000 126976 /tmp/crash-anaysis.Ro7Da/modules/fid.ko ffffffffc1895080 lmv ffffffffc1858000 372736 /tmp/crash-anaysis.Ro7Da/modules/lmv.ko ffffffffc19362c0 osc ffffffffc18b4000 790528 /tmp/crash-anaysis.Ro7Da/modules/osc.ko ffffffffc19cea00 lov ffffffffc1976000 552960 /tmp/crash-anaysis.Ro7Da/modules/lov.ko ffffffffc1a48b80 mdc ffffffffc19fe000 466944 /tmp/crash-anaysis.Ro7Da/modules/mdc.ko ffffffffc1a8d000 mgc ffffffffc1a71000 184320 /tmp/crash-anaysis.Ro7Da/modules/mgc.ko ffffffffc1ac05c0 obdecho ffffffffc1a9f000 225280 /tmp/crash-anaysis.Ro7Da/modules/obdecho.ko ffffffffc1b91340 lfsck ffffffffc1ad7000 1081344 /tmp/crash-anaysis.Ro7Da/modules/lfsck.ko ffffffffc1c60240 lquota ffffffffc1be0000 786432 /tmp/crash-anaysis.Ro7Da/modules/lquota.ko ffffffffc1d0bac0 osd_zfs ffffffffc1ca1000 655360 /tmp/crash-anaysis.Ro7Da/modules/osd_zfs.ko ffffffffc1da5400 mgs ffffffffc1d42000 626688 /tmp/crash-anaysis.Ro7Da/modules/mgs.ko ffffffffc1e57080 mdd ffffffffc1ddc000 745472 /tmp/crash-anaysis.Ro7Da/modules/mdd.ko ffffffffc1fa1940 mdt ffffffffc1e93000 1654784 /tmp/crash-anaysis.Ro7Da/modules/mdt.ko ffffffffc20d3480 lod ffffffffc2028000 1052672 /tmp/crash-anaysis.Ro7Da/modules/lod.ko ffffffffc2197a40 ofd ffffffffc212a000 679936 /tmp/crash-anaysis.Ro7Da/modules/ofd.ko ffffffffc222cf80 osp ffffffffc21d1000 573440 /tmp/crash-anaysis.Ro7Da/modules/osp.ko ffffffffc23926c0 lustre ffffffffc225e000 1912832 /tmp/crash-anaysis.Ro7Da/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, 0xffff9008cf150a88) 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, 0xffff9009c98f7708) 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 817 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, 0xffff9009c7cd16e8) 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, 0xffff9008cf151f88) 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 935 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 3800 total debug pages from 4 CPUs to /tmp/crash-anaysis.Ro7Da/lustre.bin