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.fukF0/vmlinux [TAINTED] DUMPFILE: /exports/testreports/68845/testresults/sanity-compr-special10-zfs-rocky8.10_x86_64-rocky8.10_x86_64/oleg624-server-vmcore [PARTIAL DUMP] CPUS: 4 DATE: Wed Aug 26 07:53:02 EDT 2026 UPTIME: 00:05:43 LOAD AVERAGE: 1.31, 1.25, 0.62 TASKS: 344 NODENAME: oleg624-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: 6705 COMMAND: "ll_ost_io00_002" TASK: ffff9ae2fb3f0000 [THREAD_INFO: ffff9ae2fb3f0000] 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 intel_rapl_msr 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 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 rapl 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 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 ffffffffc05d6740 libcfs ffffffffc05b6000 225280 /tmp/crash-anaysis.fukF0/modules/libcfs.ko mod: cannot find or load object file for spl module mod: cannot find or load object file for zfs module ffffffffc0ff83c0 lnet ffffffffc0f1d000 1490944 /tmp/crash-anaysis.fukF0/modules/lnet.ko ffffffffc10b3900 ksocklnd ffffffffc108a000 270336 /tmp/crash-anaysis.fukF0/modules/ksocklnd.ko ffffffffc1211800 obdclass ffffffffc10cd000 4395008 /tmp/crash-anaysis.fukF0/modules/obdclass.ko ffffffffc178c240 ptlrpc ffffffffc14ff000 4186112 /tmp/crash-anaysis.fukF0/modules/ptlrpc.ko ffffffffc194c880 ptlrpc_gss ffffffffc18fe000 524288 /tmp/crash-anaysis.fukF0/modules/ptlrpc_gss.ko ffffffffc1991c80 fld ffffffffc197f000 126976 /tmp/crash-anaysis.fukF0/modules/fld.ko ffffffffc19b1ac0 fid ffffffffc199f000 126976 /tmp/crash-anaysis.fukF0/modules/fid.ko ffffffffc19d1740 ec ffffffffc19bf000 81920 /tmp/crash-anaysis.fukF0/modules/ec.ko ffffffffc1a11080 lmv ffffffffc19d4000 372736 /tmp/crash-anaysis.fukF0/modules/lmv.ko ffffffffc1ab0d00 osc ffffffffc1a30000 778240 /tmp/crash-anaysis.fukF0/modules/osc.ko ffffffffc1b47a00 lov ffffffffc1aef000 552960 /tmp/crash-anaysis.fukF0/modules/lov.ko ffffffffc1bc1b80 mdc ffffffffc1b77000 466944 /tmp/crash-anaysis.fukF0/modules/mdc.ko ffffffffc1c06000 mgc ffffffffc1bea000 184320 /tmp/crash-anaysis.fukF0/modules/mgc.ko ffffffffc1c395c0 obdecho ffffffffc1c18000 225280 /tmp/crash-anaysis.fukF0/modules/obdecho.ko ffffffffc1d0a200 lfsck ffffffffc1c50000 1081344 /tmp/crash-anaysis.fukF0/modules/lfsck.ko ffffffffc1dd9240 lquota ffffffffc1d59000 786432 /tmp/crash-anaysis.fukF0/modules/lquota.ko ffffffffc1e84ac0 osd_zfs ffffffffc1e1a000 655360 /tmp/crash-anaysis.fukF0/modules/osd_zfs.ko ffffffffc1f1e400 mgs ffffffffc1ebb000 626688 /tmp/crash-anaysis.fukF0/modules/mgs.ko ffffffffc1fd0080 mdd ffffffffc1f55000 745472 /tmp/crash-anaysis.fukF0/modules/mdd.ko ffffffffc211a880 mdt ffffffffc200c000 1654784 /tmp/crash-anaysis.fukF0/modules/mdt.ko ffffffffc224c480 lod ffffffffc21a1000 1052672 /tmp/crash-anaysis.fukF0/modules/lod.ko ffffffffc2313fc0 ofd ffffffffc22a3000 696320 /tmp/crash-anaysis.fukF0/modules/ofd.ko ffffffffc23a9f80 osp ffffffffc234e000 573440 /tmp/crash-anaysis.fukF0/modules/osp.ko ffffffffc250f640 lustre ffffffffc23db000 1908736 /tmp/crash-anaysis.fukF0/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, 0xffff9ae2c2c5cee8) 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 119 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, 0xffff9ae2c394b628) 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 132 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, 0xffff9ae2c326c9c8) 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 125 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, 0xffff9ae2c612d868) 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 93 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 469 total debug pages from 4 CPUs to /tmp/crash-anaysis.fukF0/lustre.bin