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.Sp516/vmlinux [TAINTED] DUMPFILE: /exports/testreports/68883/testresults/sanity-compr-special1-zfs-DNE-rocky8.10_x86_64-rocky8.10_x86_64/oleg304-server-vmcore [PARTIAL DUMP] CPUS: 4 DATE: Wed Aug 26 13:30:36 EDT 2026 UPTIME: 00:07:55 LOAD AVERAGE: 1.50, 1.48, 0.80 TASKS: 401 NODENAME: oleg304-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: 7896 COMMAND: "dp_sync_taskq" TASK: ffff9811c7bacf80 [THREAD_INFO: ffff9811c7bacf80] 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_mirror 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 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 crct10dif_pclmul 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 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 squashfs 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 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 mod: cannot find or load object file for rpcsec_gss_krb5 module MODULE NAME BASE SIZE OBJECT FILE ffffffffc040c740 libcfs ffffffffc03ec000 225280 /tmp/crash-anaysis.Sp516/modules/libcfs.ko mod: cannot find or load object file for spl module mod: cannot find or load object file for zfs module ffffffffc0e2c3c0 lnet ffffffffc0d51000 1490944 /tmp/crash-anaysis.Sp516/modules/lnet.ko ffffffffc0ee7900 ksocklnd ffffffffc0ebe000 270336 /tmp/crash-anaysis.Sp516/modules/ksocklnd.ko ffffffffc10480c0 obdclass ffffffffc0f01000 4415488 /tmp/crash-anaysis.Sp516/modules/obdclass.ko ffffffffc15c40c0 ptlrpc ffffffffc1338000 4173824 /tmp/crash-anaysis.Sp516/modules/ptlrpc.ko ffffffffc1782880 ptlrpc_gss ffffffffc1734000 524288 /tmp/crash-anaysis.Sp516/modules/ptlrpc_gss.ko ffffffffc17c7c80 fld ffffffffc17b5000 126976 /tmp/crash-anaysis.Sp516/modules/fld.ko ffffffffc17e7ac0 fid ffffffffc17d5000 126976 /tmp/crash-anaysis.Sp516/modules/fid.ko ffffffffc1807740 ec ffffffffc17f5000 81920 /tmp/crash-anaysis.Sp516/modules/ec.ko ffffffffc1847080 lmv ffffffffc180a000 372736 /tmp/crash-anaysis.Sp516/modules/lmv.ko ffffffffc18e8480 osc ffffffffc1866000 790528 /tmp/crash-anaysis.Sp516/modules/osc.ko ffffffffc1980b00 lov ffffffffc1928000 552960 /tmp/crash-anaysis.Sp516/modules/lov.ko ffffffffc19fab80 mdc ffffffffc19b0000 466944 /tmp/crash-anaysis.Sp516/modules/mdc.ko ffffffffc1a3f000 mgc ffffffffc1a23000 184320 /tmp/crash-anaysis.Sp516/modules/mgc.ko ffffffffc1a725c0 obdecho ffffffffc1a51000 225280 /tmp/crash-anaysis.Sp516/modules/obdecho.ko ffffffffc1b43340 lfsck ffffffffc1a89000 1081344 /tmp/crash-anaysis.Sp516/modules/lfsck.ko ffffffffc1c12240 lquota ffffffffc1b92000 786432 /tmp/crash-anaysis.Sp516/modules/lquota.ko ffffffffc1cbeb80 osd_zfs ffffffffc1c53000 659456 /tmp/crash-anaysis.Sp516/modules/osd_zfs.ko ffffffffc1d58400 mgs ffffffffc1cf5000 626688 /tmp/crash-anaysis.Sp516/modules/mgs.ko ffffffffc1e0a0c0 mdd ffffffffc1d8f000 745472 /tmp/crash-anaysis.Sp516/modules/mdd.ko ffffffffc1f54900 mdt ffffffffc1e46000 1654784 /tmp/crash-anaysis.Sp516/modules/mdt.ko ffffffffc2088900 lod ffffffffc1fdb000 1064960 /tmp/crash-anaysis.Sp516/modules/lod.ko ffffffffc214ee40 ofd ffffffffc20e0000 688128 /tmp/crash-anaysis.Sp516/modules/ofd.ko ffffffffc21e4f80 osp ffffffffc2189000 573440 /tmp/crash-anaysis.Sp516/modules/osp.ko ffffffffc234c780 lustre ffffffffc2216000 1925120 /tmp/crash-anaysis.Sp516/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, 0xffff9811d0a3a8c8) 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 172 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, 0xffff9811d0ebf388) 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 232 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, 0xffff9811d217c3e8) 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 262 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, 0xffff9811d0daa928) 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 225 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 891 total debug pages from 4 CPUs to /tmp/crash-anaysis.Sp516/lustre.bin