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.KNifK/vmlinux [TAINTED] DUMPFILE: /exports/testreports/68907/testresults/sanity-compr-special3-zfs-DNE-rocky8.10_x86_64-rocky8.10_x86_64/oleg354-server-vmcore [PARTIAL DUMP] CPUS: 4 DATE: Wed Aug 26 10:47:52 EDT 2026 UPTIME: 00:07:00 LOAD AVERAGE: 1.90, 1.66, 0.87 TASKS: 410 NODENAME: oleg354-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: 7918 COMMAND: "dp_sync_taskq" TASK: ffff95706f648000 [THREAD_INFO: ffff95706f648000] 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_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 ghash_clmulni_intel module mod: cannot find or load object file for crc32_pclmul module mod: cannot find or load object file for pcspkr module mod: cannot find or load object file for crct10dif_pclmul module mod: cannot find or load object file for intel_rapl_msr 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 serio_raw module mod: cannot find or load object file for i2c_piix4 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 squashfs 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 rapl 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 ffffffffc07e9740 libcfs ffffffffc07c9000 225280 /tmp/crash-anaysis.KNifK/modules/libcfs.ko mod: cannot find or load object file for spl module mod: cannot find or load object file for zfs module ffffffffc120b3c0 lnet ffffffffc1130000 1490944 /tmp/crash-anaysis.KNifK/modules/lnet.ko ffffffffc12c6900 ksocklnd ffffffffc129d000 270336 /tmp/crash-anaysis.KNifK/modules/ksocklnd.ko ffffffffc1426f80 obdclass ffffffffc12e0000 4415488 /tmp/crash-anaysis.KNifK/modules/obdclass.ko ffffffffc19a30c0 ptlrpc ffffffffc1717000 4173824 /tmp/crash-anaysis.KNifK/modules/ptlrpc.ko ffffffffc1b61880 ptlrpc_gss ffffffffc1b13000 524288 /tmp/crash-anaysis.KNifK/modules/ptlrpc_gss.ko ffffffffc1ba6c80 fld ffffffffc1b94000 126976 /tmp/crash-anaysis.KNifK/modules/fld.ko ffffffffc1bc6ac0 fid ffffffffc1bb4000 126976 /tmp/crash-anaysis.KNifK/modules/fid.ko ffffffffc1be6740 ec ffffffffc1bd4000 81920 /tmp/crash-anaysis.KNifK/modules/ec.ko ffffffffc1c26080 lmv ffffffffc1be9000 372736 /tmp/crash-anaysis.KNifK/modules/lmv.ko ffffffffc1cc7200 osc ffffffffc1c45000 790528 /tmp/crash-anaysis.KNifK/modules/osc.ko ffffffffc1d5fa00 lov ffffffffc1d07000 552960 /tmp/crash-anaysis.KNifK/modules/lov.ko ffffffffc1dd9b80 mdc ffffffffc1d8f000 466944 /tmp/crash-anaysis.KNifK/modules/mdc.ko ffffffffc1e1e000 mgc ffffffffc1e02000 184320 /tmp/crash-anaysis.KNifK/modules/mgc.ko ffffffffc1e515c0 obdecho ffffffffc1e30000 225280 /tmp/crash-anaysis.KNifK/modules/obdecho.ko ffffffffc1f22340 lfsck ffffffffc1e68000 1081344 /tmp/crash-anaysis.KNifK/modules/lfsck.ko ffffffffc1ff1240 lquota ffffffffc1f71000 786432 /tmp/crash-anaysis.KNifK/modules/lquota.ko ffffffffc209cac0 osd_zfs ffffffffc2032000 655360 /tmp/crash-anaysis.KNifK/modules/osd_zfs.ko ffffffffc2136400 mgs ffffffffc20d3000 626688 /tmp/crash-anaysis.KNifK/modules/mgs.ko ffffffffc21e8080 mdd ffffffffc216d000 745472 /tmp/crash-anaysis.KNifK/modules/mdd.ko ffffffffc2332940 mdt ffffffffc2224000 1654784 /tmp/crash-anaysis.KNifK/modules/mdt.ko ffffffffc2464480 lod ffffffffc23b9000 1052672 /tmp/crash-anaysis.KNifK/modules/lod.ko ffffffffc252ae40 ofd ffffffffc24bb000 692224 /tmp/crash-anaysis.KNifK/modules/ofd.ko ffffffffc25c0f80 osp ffffffffc2565000 573440 /tmp/crash-anaysis.KNifK/modules/osp.ko ffffffffc27266c0 lustre ffffffffc25f2000 1912832 /tmp/crash-anaysis.KNifK/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, 0xffff957050eec748) 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 202 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, 0xffff95704370fd28) 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 190 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, 0xffff957058223be8) 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 195 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, 0xffff957058a0cb08) 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 180 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 767 total debug pages from 4 CPUs to /tmp/crash-anaysis.KNifK/lustre.bin