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.Uf1PD/vmlinux [TAINTED] DUMPFILE: /exports/testreports/68845/testresults/sanity-compr-special8-zfs-rocky8.10_x86_64-rocky8.10_x86_64/oleg122-server-vmcore [PARTIAL DUMP] CPUS: 4 DATE: Wed Aug 26 07:53:09 EDT 2026 UPTIME: 00:06:03 LOAD AVERAGE: 1.63, 1.51, 0.75 TASKS: 347 NODENAME: oleg122-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: 6682 COMMAND: "ll_ost_io00_002" TASK: ffffa09381300000 [THREAD_INFO: ffffa09381300000] 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 pcspkr 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 ata_piix 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 intel_rapl_common module mod: cannot find or load object file for crc32c_intel module mod: cannot find or load object file for dns_resolver 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 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 nfsv4 module mod: cannot find or load object file for auth_rpcgss module MODULE NAME BASE SIZE OBJECT FILE ffffffffc0645740 libcfs ffffffffc0625000 225280 /tmp/crash-anaysis.Uf1PD/modules/libcfs.ko mod: cannot find or load object file for spl module mod: cannot find or load object file for zfs module ffffffffc10673c0 lnet ffffffffc0f8c000 1490944 /tmp/crash-anaysis.Uf1PD/modules/lnet.ko ffffffffc1122900 ksocklnd ffffffffc10f9000 270336 /tmp/crash-anaysis.Uf1PD/modules/ksocklnd.ko ffffffffc1280800 obdclass ffffffffc113c000 4395008 /tmp/crash-anaysis.Uf1PD/modules/obdclass.ko ffffffffc17fb240 ptlrpc ffffffffc156e000 4186112 /tmp/crash-anaysis.Uf1PD/modules/ptlrpc.ko ffffffffc19bb880 ptlrpc_gss ffffffffc196d000 524288 /tmp/crash-anaysis.Uf1PD/modules/ptlrpc_gss.ko ffffffffc1a00c80 fld ffffffffc19ee000 126976 /tmp/crash-anaysis.Uf1PD/modules/fld.ko ffffffffc1a20ac0 fid ffffffffc1a0e000 126976 /tmp/crash-anaysis.Uf1PD/modules/fid.ko ffffffffc1a40740 ec ffffffffc1a2e000 81920 /tmp/crash-anaysis.Uf1PD/modules/ec.ko ffffffffc1a80080 lmv ffffffffc1a43000 372736 /tmp/crash-anaysis.Uf1PD/modules/lmv.ko ffffffffc1b1fd00 osc ffffffffc1a9f000 778240 /tmp/crash-anaysis.Uf1PD/modules/osc.ko ffffffffc1bb6a00 lov ffffffffc1b5e000 552960 /tmp/crash-anaysis.Uf1PD/modules/lov.ko ffffffffc1c30b80 mdc ffffffffc1be6000 466944 /tmp/crash-anaysis.Uf1PD/modules/mdc.ko ffffffffc1c75000 mgc ffffffffc1c59000 184320 /tmp/crash-anaysis.Uf1PD/modules/mgc.ko ffffffffc1ca85c0 obdecho ffffffffc1c87000 225280 /tmp/crash-anaysis.Uf1PD/modules/obdecho.ko ffffffffc1d79200 lfsck ffffffffc1cbf000 1081344 /tmp/crash-anaysis.Uf1PD/modules/lfsck.ko ffffffffc1e48240 lquota ffffffffc1dc8000 786432 /tmp/crash-anaysis.Uf1PD/modules/lquota.ko ffffffffc1ef3ac0 osd_zfs ffffffffc1e89000 655360 /tmp/crash-anaysis.Uf1PD/modules/osd_zfs.ko ffffffffc1f8d400 mgs ffffffffc1f2a000 626688 /tmp/crash-anaysis.Uf1PD/modules/mgs.ko ffffffffc203f080 mdd ffffffffc1fc4000 745472 /tmp/crash-anaysis.Uf1PD/modules/mdd.ko ffffffffc2189880 mdt ffffffffc207b000 1654784 /tmp/crash-anaysis.Uf1PD/modules/mdt.ko ffffffffc22bb480 lod ffffffffc2210000 1052672 /tmp/crash-anaysis.Uf1PD/modules/lod.ko ffffffffc2382fc0 ofd ffffffffc2312000 696320 /tmp/crash-anaysis.Uf1PD/modules/ofd.ko ffffffffc2418f80 osp ffffffffc23bd000 573440 /tmp/crash-anaysis.Uf1PD/modules/osp.ko ffffffffc257e640 lustre ffffffffc244a000 1908736 /tmp/crash-anaysis.Uf1PD/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, 0xffffa09342e474e8) 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 113 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, 0xffffa09350e65788) 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 128 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, 0xffffa09349abf848) 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 108 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, 0xffffa09350f1fdc8) 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 115 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 464 total debug pages from 4 CPUs to /tmp/crash-anaysis.Uf1PD/lustre.bin