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.5tXnU/vmlinux [TAINTED] DUMPFILE: /exports/testreports/68908/testresults/sanity-compr-special3-zfs-DNE-rocky8.10_x86_64-rocky8.10_x86_64/oleg607-server-vmcore [PARTIAL DUMP] CPUS: 4 DATE: Wed Aug 26 10:42:10 EDT 2026 UPTIME: 00:07:02 LOAD AVERAGE: 1.44, 1.44, 0.78 TASKS: 402 NODENAME: oleg607-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: 7898 COMMAND: "dp_sync_taskq" TASK: ffff8b023b244f80 [THREAD_INFO: ffff8b023b244f80] 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_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 crct10dif_pclmul 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 ata_piix module mod: cannot find or load object file for pcspkr module mod: cannot find or load object file for serio_raw module mod: cannot find or load object file for intel_rapl_common 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 crc32c_intel module mod: cannot find or load object file for dns_resolver module mod: cannot find or load object file for crc32_pclmul 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 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 ffffffffc06b2740 libcfs ffffffffc0692000 225280 /tmp/crash-anaysis.5tXnU/modules/libcfs.ko mod: cannot find or load object file for spl module mod: cannot find or load object file for zfs module ffffffffc10d43c0 lnet ffffffffc0ff9000 1490944 /tmp/crash-anaysis.5tXnU/modules/lnet.ko ffffffffc118f900 ksocklnd ffffffffc1166000 270336 /tmp/crash-anaysis.5tXnU/modules/ksocklnd.ko ffffffffc12eea80 obdclass ffffffffc11a9000 4403200 /tmp/crash-anaysis.5tXnU/modules/obdclass.ko ffffffffc18690c0 ptlrpc ffffffffc15dd000 4173824 /tmp/crash-anaysis.5tXnU/modules/ptlrpc.ko ffffffffc1a27880 ptlrpc_gss ffffffffc19d9000 524288 /tmp/crash-anaysis.5tXnU/modules/ptlrpc_gss.ko ffffffffc1a6cc80 fld ffffffffc1a5a000 126976 /tmp/crash-anaysis.5tXnU/modules/fld.ko ffffffffc1a8cac0 fid ffffffffc1a7a000 126976 /tmp/crash-anaysis.5tXnU/modules/fid.ko ffffffffc1aac740 ec ffffffffc1a9a000 81920 /tmp/crash-anaysis.5tXnU/modules/ec.ko ffffffffc1aec080 lmv ffffffffc1aaf000 372736 /tmp/crash-anaysis.5tXnU/modules/lmv.ko ffffffffc1b8d200 osc ffffffffc1b0b000 790528 /tmp/crash-anaysis.5tXnU/modules/osc.ko ffffffffc1c25a00 lov ffffffffc1bcd000 552960 /tmp/crash-anaysis.5tXnU/modules/lov.ko ffffffffc1c9fb80 mdc ffffffffc1c55000 466944 /tmp/crash-anaysis.5tXnU/modules/mdc.ko ffffffffc1ce4000 mgc ffffffffc1cc8000 184320 /tmp/crash-anaysis.5tXnU/modules/mgc.ko ffffffffc1d175c0 obdecho ffffffffc1cf6000 225280 /tmp/crash-anaysis.5tXnU/modules/obdecho.ko ffffffffc1de8340 lfsck ffffffffc1d2e000 1081344 /tmp/crash-anaysis.5tXnU/modules/lfsck.ko ffffffffc1eb7240 lquota ffffffffc1e37000 786432 /tmp/crash-anaysis.5tXnU/modules/lquota.ko ffffffffc1f62ac0 osd_zfs ffffffffc1ef8000 655360 /tmp/crash-anaysis.5tXnU/modules/osd_zfs.ko ffffffffc1ffc400 mgs ffffffffc1f99000 626688 /tmp/crash-anaysis.5tXnU/modules/mgs.ko ffffffffc20ae080 mdd ffffffffc2033000 745472 /tmp/crash-anaysis.5tXnU/modules/mdd.ko ffffffffc21f8940 mdt ffffffffc20ea000 1654784 /tmp/crash-anaysis.5tXnU/modules/mdt.ko ffffffffc232a480 lod ffffffffc227f000 1052672 /tmp/crash-anaysis.5tXnU/modules/lod.ko ffffffffc23efac0 ofd ffffffffc2381000 684032 /tmp/crash-anaysis.5tXnU/modules/ofd.ko ffffffffc2484f80 osp ffffffffc2429000 573440 /tmp/crash-anaysis.5tXnU/modules/osp.ko ffffffffc25ea6c0 lustre ffffffffc24b6000 1912832 /tmp/crash-anaysis.5tXnU/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, 0xffff8b0211e0cd08) 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 227 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, 0xffff8b0211e0c0c8) 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 246 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, 0xffff8b0231b47968) 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 237 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, 0xffff8b0202bf5408) 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 212 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 922 total debug pages from 4 CPUs to /tmp/crash-anaysis.5tXnU/lustre.bin