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.yzTHM/vmlinux [TAINTED] DUMPFILE: /exports/testreports/68845/testresults/sanity-compr-special5-zfs-DNE-rocky8.10_x86_64-rocky8.10_x86_64/oleg459-server-vmcore [PARTIAL DUMP] CPUS: 4 DATE: Wed Aug 26 07:55:55 EDT 2026 UPTIME: 00:07:55 LOAD AVERAGE: 1.58, 1.66, 0.90 TASKS: 407 NODENAME: oleg459-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: 8128 COMMAND: "ll_ost_io00_002" TASK: ffff914eb4458000 [THREAD_INFO: ffff914eb4458000] 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 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 crc32_pclmul module mod: cannot find or load object file for squashfs 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 crct10dif_pclmul module mod: cannot find or load object file for ghash_clmulni_intel module mod: cannot find or load object file for crc32c_intel 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 rapl 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 intel_rapl_common module mod: cannot find or load object file for dns_resolver 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 ffffffffc0448740 libcfs ffffffffc0428000 225280 /tmp/crash-anaysis.yzTHM/modules/libcfs.ko mod: cannot find or load object file for spl module mod: cannot find or load object file for zfs module ffffffffc0e6a3c0 lnet ffffffffc0d8f000 1490944 /tmp/crash-anaysis.yzTHM/modules/lnet.ko ffffffffc0f25900 ksocklnd ffffffffc0efc000 270336 /tmp/crash-anaysis.yzTHM/modules/ksocklnd.ko ffffffffc1083800 obdclass ffffffffc0f3f000 4395008 /tmp/crash-anaysis.yzTHM/modules/obdclass.ko ffffffffc15fe240 ptlrpc ffffffffc1371000 4186112 /tmp/crash-anaysis.yzTHM/modules/ptlrpc.ko ffffffffc17be880 ptlrpc_gss ffffffffc1770000 524288 /tmp/crash-anaysis.yzTHM/modules/ptlrpc_gss.ko ffffffffc1803c80 fld ffffffffc17f1000 126976 /tmp/crash-anaysis.yzTHM/modules/fld.ko ffffffffc1823ac0 fid ffffffffc1811000 126976 /tmp/crash-anaysis.yzTHM/modules/fid.ko ffffffffc1843740 ec ffffffffc1831000 81920 /tmp/crash-anaysis.yzTHM/modules/ec.ko ffffffffc1883080 lmv ffffffffc1846000 372736 /tmp/crash-anaysis.yzTHM/modules/lmv.ko ffffffffc1922d00 osc ffffffffc18a2000 778240 /tmp/crash-anaysis.yzTHM/modules/osc.ko ffffffffc19b9a00 lov ffffffffc1961000 552960 /tmp/crash-anaysis.yzTHM/modules/lov.ko ffffffffc1a33b80 mdc ffffffffc19e9000 466944 /tmp/crash-anaysis.yzTHM/modules/mdc.ko ffffffffc1a78000 mgc ffffffffc1a5c000 184320 /tmp/crash-anaysis.yzTHM/modules/mgc.ko ffffffffc1aab5c0 obdecho ffffffffc1a8a000 225280 /tmp/crash-anaysis.yzTHM/modules/obdecho.ko ffffffffc1b7c200 lfsck ffffffffc1ac2000 1081344 /tmp/crash-anaysis.yzTHM/modules/lfsck.ko ffffffffc1c4b240 lquota ffffffffc1bcb000 786432 /tmp/crash-anaysis.yzTHM/modules/lquota.ko ffffffffc1cf6ac0 osd_zfs ffffffffc1c8c000 655360 /tmp/crash-anaysis.yzTHM/modules/osd_zfs.ko ffffffffc1d90400 mgs ffffffffc1d2d000 626688 /tmp/crash-anaysis.yzTHM/modules/mgs.ko ffffffffc1e42080 mdd ffffffffc1dc7000 745472 /tmp/crash-anaysis.yzTHM/modules/mdd.ko ffffffffc1f8c880 mdt ffffffffc1e7e000 1654784 /tmp/crash-anaysis.yzTHM/modules/mdt.ko ffffffffc20be480 lod ffffffffc2013000 1052672 /tmp/crash-anaysis.yzTHM/modules/lod.ko ffffffffc2185fc0 ofd ffffffffc2115000 696320 /tmp/crash-anaysis.yzTHM/modules/ofd.ko ffffffffc221bf80 osp ffffffffc21c0000 573440 /tmp/crash-anaysis.yzTHM/modules/osp.ko ffffffffc2381640 lustre ffffffffc224d000 1908736 /tmp/crash-anaysis.yzTHM/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, 0xffff914e83e9a208) 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 180 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, 0xffff914ea0315ec8) 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 195 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, 0xffff914ea037f5c8) 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 207 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, 0xffff914e833d1f68) 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 238 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 820 total debug pages from 4 CPUs to /tmp/crash-anaysis.yzTHM/lustre.bin