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.W3fRt/vmlinux [TAINTED] DUMPFILE: /exports/testreports/68883/testresults/sanity-compr-special1-zfs-DNE-rocky8.10_x86_64-rocky8.10_x86_64-retry1/oleg303-server-vmcore [PARTIAL DUMP] CPUS: 4 DATE: Wed Aug 26 13:31:22 EDT 2026 UPTIME: 00:07:30 LOAD AVERAGE: 1.84, 1.59, 0.85 TASKS: 407 NODENAME: oleg303-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: 7913 COMMAND: "dp_sync_taskq" TASK: ffff8f08c58ccf80 [THREAD_INFO: ffff8f08c58ccf80] 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 libata 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 pcspkr module mod: cannot find or load object file for intel_rapl_msr module mod: cannot find or load object file for crc32c_intel 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 ata_piix module mod: cannot find or load object file for dns_resolver module mod: cannot find or load object file for ghash_clmulni_intel module mod: cannot find or load object file for squashfs 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 sb_edac 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 ffffffffc07f2740 libcfs ffffffffc07d2000 225280 /tmp/crash-anaysis.W3fRt/modules/libcfs.ko mod: cannot find or load object file for spl module mod: cannot find or load object file for zfs module ffffffffc12143c0 lnet ffffffffc1139000 1490944 /tmp/crash-anaysis.W3fRt/modules/lnet.ko ffffffffc12cf900 ksocklnd ffffffffc12a6000 270336 /tmp/crash-anaysis.W3fRt/modules/ksocklnd.ko ffffffffc14300c0 obdclass ffffffffc12e9000 4415488 /tmp/crash-anaysis.W3fRt/modules/obdclass.ko ffffffffc19ac0c0 ptlrpc ffffffffc1720000 4173824 /tmp/crash-anaysis.W3fRt/modules/ptlrpc.ko ffffffffc1b6a880 ptlrpc_gss ffffffffc1b1c000 524288 /tmp/crash-anaysis.W3fRt/modules/ptlrpc_gss.ko ffffffffc1bafc80 fld ffffffffc1b9d000 126976 /tmp/crash-anaysis.W3fRt/modules/fld.ko ffffffffc1bcfac0 fid ffffffffc1bbd000 126976 /tmp/crash-anaysis.W3fRt/modules/fid.ko ffffffffc1bef740 ec ffffffffc1bdd000 81920 /tmp/crash-anaysis.W3fRt/modules/ec.ko ffffffffc1c2f080 lmv ffffffffc1bf2000 372736 /tmp/crash-anaysis.W3fRt/modules/lmv.ko ffffffffc1cd0480 osc ffffffffc1c4e000 790528 /tmp/crash-anaysis.W3fRt/modules/osc.ko ffffffffc1d68b00 lov ffffffffc1d10000 552960 /tmp/crash-anaysis.W3fRt/modules/lov.ko ffffffffc1de2b80 mdc ffffffffc1d98000 466944 /tmp/crash-anaysis.W3fRt/modules/mdc.ko ffffffffc1e27000 mgc ffffffffc1e0b000 184320 /tmp/crash-anaysis.W3fRt/modules/mgc.ko ffffffffc1e5a5c0 obdecho ffffffffc1e39000 225280 /tmp/crash-anaysis.W3fRt/modules/obdecho.ko ffffffffc1f2b340 lfsck ffffffffc1e71000 1081344 /tmp/crash-anaysis.W3fRt/modules/lfsck.ko ffffffffc1ffa240 lquota ffffffffc1f7a000 786432 /tmp/crash-anaysis.W3fRt/modules/lquota.ko ffffffffc20a6b80 osd_zfs ffffffffc203b000 659456 /tmp/crash-anaysis.W3fRt/modules/osd_zfs.ko ffffffffc2140400 mgs ffffffffc20dd000 626688 /tmp/crash-anaysis.W3fRt/modules/mgs.ko ffffffffc21f20c0 mdd ffffffffc2177000 745472 /tmp/crash-anaysis.W3fRt/modules/mdd.ko ffffffffc233c900 mdt ffffffffc222e000 1654784 /tmp/crash-anaysis.W3fRt/modules/mdt.ko ffffffffc2470900 lod ffffffffc23c3000 1064960 /tmp/crash-anaysis.W3fRt/modules/lod.ko ffffffffc2536e40 ofd ffffffffc24c8000 688128 /tmp/crash-anaysis.W3fRt/modules/ofd.ko ffffffffc25ccf80 osp ffffffffc2571000 573440 /tmp/crash-anaysis.W3fRt/modules/osp.ko ffffffffc2734780 lustre ffffffffc25fe000 1925120 /tmp/crash-anaysis.W3fRt/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, 0xffff8f08c8182608) 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 237 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, 0xffff8f08c8773e88) 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 180 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, 0xffff8f08e93e3cc8) 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 219 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, 0xffff8f08c81d42c8) 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 228 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 864 total debug pages from 4 CPUs to /tmp/crash-anaysis.W3fRt/lustre.bin