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.WpW90/vmlinux [TAINTED] DUMPFILE: /exports/testreports/68890/testresults/sanity-compr-special5-zfs-DNE-rocky8.10_x86_64-rocky8.10_x86_64/oleg360-server-vmcore [PARTIAL DUMP] CPUS: 4 DATE: Wed Aug 26 13:21:39 EDT 2026 UPTIME: 00:04:20 LOAD AVERAGE: 0.33, 0.44, 0.21 TASKS: 416 NODENAME: oleg360-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: 7884 COMMAND: "dp_sync_taskq" TASK: ffff9f6e7b040000 [THREAD_INFO: ffff9f6e7b040000] 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 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 crct10dif_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 rapl module mod: cannot find or load object file for serio_raw 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 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 sb_edac 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 ffffffffc0544740 libcfs ffffffffc0524000 225280 /tmp/crash-anaysis.WpW90/modules/libcfs.ko mod: cannot find or load object file for spl module mod: cannot find or load object file for zfs module ffffffffc0f663c0 lnet ffffffffc0e8b000 1490944 /tmp/crash-anaysis.WpW90/modules/lnet.ko ffffffffc1021900 ksocklnd ffffffffc0ff8000 270336 /tmp/crash-anaysis.WpW90/modules/ksocklnd.ko ffffffffc11820c0 obdclass ffffffffc103b000 4415488 /tmp/crash-anaysis.WpW90/modules/obdclass.ko ffffffffc16fe0c0 ptlrpc ffffffffc1472000 4173824 /tmp/crash-anaysis.WpW90/modules/ptlrpc.ko ffffffffc18bc880 ptlrpc_gss ffffffffc186e000 524288 /tmp/crash-anaysis.WpW90/modules/ptlrpc_gss.ko ffffffffc1901c80 fld ffffffffc18ef000 126976 /tmp/crash-anaysis.WpW90/modules/fld.ko ffffffffc1921ac0 fid ffffffffc190f000 126976 /tmp/crash-anaysis.WpW90/modules/fid.ko ffffffffc1941740 ec ffffffffc192f000 81920 /tmp/crash-anaysis.WpW90/modules/ec.ko ffffffffc1981080 lmv ffffffffc1944000 372736 /tmp/crash-anaysis.WpW90/modules/lmv.ko ffffffffc1a22380 osc ffffffffc19a0000 790528 /tmp/crash-anaysis.WpW90/modules/osc.ko ffffffffc1abaa00 lov ffffffffc1a62000 552960 /tmp/crash-anaysis.WpW90/modules/lov.ko ffffffffc1b34b80 mdc ffffffffc1aea000 466944 /tmp/crash-anaysis.WpW90/modules/mdc.ko ffffffffc1b79000 mgc ffffffffc1b5d000 184320 /tmp/crash-anaysis.WpW90/modules/mgc.ko ffffffffc1bac5c0 obdecho ffffffffc1b8b000 225280 /tmp/crash-anaysis.WpW90/modules/obdecho.ko ffffffffc1c7d340 lfsck ffffffffc1bc3000 1081344 /tmp/crash-anaysis.WpW90/modules/lfsck.ko ffffffffc1d4c240 lquota ffffffffc1ccc000 786432 /tmp/crash-anaysis.WpW90/modules/lquota.ko ffffffffc1df8b80 osd_zfs ffffffffc1d8d000 659456 /tmp/crash-anaysis.WpW90/modules/osd_zfs.ko ffffffffc1e92400 mgs ffffffffc1e2f000 626688 /tmp/crash-anaysis.WpW90/modules/mgs.ko ffffffffc1f44080 mdd ffffffffc1ec9000 745472 /tmp/crash-anaysis.WpW90/modules/mdd.ko ffffffffc208e900 mdt ffffffffc1f80000 1654784 /tmp/crash-anaysis.WpW90/modules/mdt.ko ffffffffc21c0540 lod ffffffffc2115000 1056768 /tmp/crash-anaysis.WpW90/modules/lod.ko ffffffffc2286e40 ofd ffffffffc2218000 688128 /tmp/crash-anaysis.WpW90/modules/ofd.ko ffffffffc231cf80 osp ffffffffc22c1000 573440 /tmp/crash-anaysis.WpW90/modules/osp.ko ffffffffc24824c0 lustre ffffffffc234e000 1908736 /tmp/crash-anaysis.WpW90/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, 0xffff9f6e44a02ae8) 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 195 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, 0xffff9f6e42f2d1c8) 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 199 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, 0xffff9f6e510e5608) 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 169 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, 0xffff9f6e42881348) 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 743 total debug pages from 4 CPUs to /tmp/crash-anaysis.WpW90/lustre.bin