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. 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(determining panic task) KERNEL: /tmp/crash-anaysis.6yG1U/vmlinux [TAINTED] DUMPFILE: /exports/testreports/68908/testresults/sanity-compr-special8-zfs-DNE-rocky8.10_x86_64-rocky8.10_x86_64/oleg610-server-vmcore [PARTIAL DUMP] CPUS: 4 DATE: Wed Aug 26 10:40:30 EDT 2026 UPTIME: 00:06:33 LOAD AVERAGE: 1.65, 1.63, 0.83 TASKS: 411 NODENAME: oleg610-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 0000000000000028" PID: 7914 COMMAND: "dp_sync_taskq" TASK: ffff983b837327c0 [THREAD_INFO: ffff983b837327c0] CPU: 3 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 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 crct10dif_pclmul 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 pcspkr module mod: cannot find or load object file for intel_rapl_msr module mod: cannot find or load object file for crc32_pclmul module mod: cannot find or load object file for rapl module mod: cannot find or load object file for sb_edac module mod: cannot find or load object file for ata_piix module mod: cannot find or load object file for squashfs 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 ffffffffc0760740 libcfs ffffffffc0740000 225280 /tmp/crash-anaysis.6yG1U/modules/libcfs.ko mod: cannot find or load object file for spl module mod: cannot find or load object file for zfs module ffffffffc11823c0 lnet ffffffffc10a7000 1490944 /tmp/crash-anaysis.6yG1U/modules/lnet.ko ffffffffc123d900 ksocklnd ffffffffc1214000 270336 /tmp/crash-anaysis.6yG1U/modules/ksocklnd.ko ffffffffc139ca80 obdclass ffffffffc1257000 4403200 /tmp/crash-anaysis.6yG1U/modules/obdclass.ko ffffffffc19170c0 ptlrpc ffffffffc168b000 4173824 /tmp/crash-anaysis.6yG1U/modules/ptlrpc.ko ffffffffc1ad5880 ptlrpc_gss ffffffffc1a87000 524288 /tmp/crash-anaysis.6yG1U/modules/ptlrpc_gss.ko ffffffffc1b1ac80 fld ffffffffc1b08000 126976 /tmp/crash-anaysis.6yG1U/modules/fld.ko ffffffffc1b3aac0 fid ffffffffc1b28000 126976 /tmp/crash-anaysis.6yG1U/modules/fid.ko ffffffffc1b5a740 ec ffffffffc1b48000 81920 /tmp/crash-anaysis.6yG1U/modules/ec.ko ffffffffc1b9a080 lmv ffffffffc1b5d000 372736 /tmp/crash-anaysis.6yG1U/modules/lmv.ko ffffffffc1c3b200 osc ffffffffc1bb9000 790528 /tmp/crash-anaysis.6yG1U/modules/osc.ko ffffffffc1cd3a00 lov ffffffffc1c7b000 552960 /tmp/crash-anaysis.6yG1U/modules/lov.ko ffffffffc1d4db80 mdc ffffffffc1d03000 466944 /tmp/crash-anaysis.6yG1U/modules/mdc.ko ffffffffc1d92000 mgc ffffffffc1d76000 184320 /tmp/crash-anaysis.6yG1U/modules/mgc.ko ffffffffc1dc55c0 obdecho ffffffffc1da4000 225280 /tmp/crash-anaysis.6yG1U/modules/obdecho.ko ffffffffc1e96340 lfsck ffffffffc1ddc000 1081344 /tmp/crash-anaysis.6yG1U/modules/lfsck.ko ffffffffc1f65240 lquota ffffffffc1ee5000 786432 /tmp/crash-anaysis.6yG1U/modules/lquota.ko ffffffffc2010ac0 osd_zfs ffffffffc1fa6000 655360 /tmp/crash-anaysis.6yG1U/modules/osd_zfs.ko ffffffffc20aa400 mgs ffffffffc2047000 626688 /tmp/crash-anaysis.6yG1U/modules/mgs.ko ffffffffc215c080 mdd ffffffffc20e1000 745472 /tmp/crash-anaysis.6yG1U/modules/mdd.ko ffffffffc22a6940 mdt ffffffffc2198000 1654784 /tmp/crash-anaysis.6yG1U/modules/mdt.ko ffffffffc23d8480 lod ffffffffc232d000 1052672 /tmp/crash-anaysis.6yG1U/modules/lod.ko ffffffffc249dac0 ofd ffffffffc242f000 684032 /tmp/crash-anaysis.6yG1U/modules/ofd.ko ffffffffc2532f80 osp ffffffffc24d7000 573440 /tmp/crash-anaysis.6yG1U/modules/osp.ko ffffffffc26986c0 lustre ffffffffc2564000 1912832 /tmp/crash-anaysis.6yG1U/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, 0xffff983b92ac05c8) 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 199 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, 0xffff983b8902f888) 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 242 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, 0xffff983b8305a568) 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 229 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, 0xffff983b8303ba48) 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 215 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 885 total debug pages from 4 CPUs to /tmp/crash-anaysis.6yG1U/lustre.bin