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. There is NO WARRANTY, to the extent permitted by law. Type "show copying" and "show warranty" for details. This GDB was configured as "x86_64-pc-linux-gnu". Type "show configuration" for configuration details. Find the GDB manual and other documentation resources online at: . For help, type "help". Type "apropos word" to search for commands related to "word"... please wait... (gathering kmem slab cache data) please wait... (gathering module symbol data) please wait... (gathering task table data) please wait... (determining panic task) KERNEL: /tmp/crash-anaysis.WRInm/vmlinux [TAINTED] DUMPFILE: /exports/testreports/68887/testresults/sanity-compr-special1-zfs-rocky8.10_x86_64-rocky8.10_x86_64/oleg431-server-vmcore [PARTIAL DUMP] CPUS: 4 DATE: Wed Aug 26 13:36:55 EDT 2026 UPTIME: 00:06:35 LOAD AVERAGE: 1.29, 1.20, 0.60 TASKS: 339 NODENAME: oleg431-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: 6495 COMMAND: "dp_sync_taskq" TASK: ffff9b1345d1a7c0 [THREAD_INFO: ffff9b1345d1a7c0] 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_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 crc32c_intel module mod: cannot find or load object file for ata_generic 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 intel_rapl_msr module mod: cannot find or load object file for serio_raw 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 squashfs 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 dns_resolver module mod: cannot find or load object file for rapl module mod: cannot find or load object file for intel_rapl_common module mod: cannot find or load object file for rpcsec_gss_krb5 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 MODULE NAME BASE SIZE OBJECT FILE ffffffffc0685740 libcfs ffffffffc0665000 225280 /tmp/crash-anaysis.WRInm/modules/libcfs.ko mod: cannot find or load object file for spl module mod: cannot find or load object file for zfs module ffffffffc10a73c0 lnet ffffffffc0fcc000 1490944 /tmp/crash-anaysis.WRInm/modules/lnet.ko ffffffffc1162900 ksocklnd ffffffffc1139000 270336 /tmp/crash-anaysis.WRInm/modules/ksocklnd.ko ffffffffc12c30c0 obdclass ffffffffc117c000 4415488 /tmp/crash-anaysis.WRInm/modules/obdclass.ko ffffffffc183f0c0 ptlrpc ffffffffc15b3000 4173824 /tmp/crash-anaysis.WRInm/modules/ptlrpc.ko ffffffffc19fd880 ptlrpc_gss ffffffffc19af000 524288 /tmp/crash-anaysis.WRInm/modules/ptlrpc_gss.ko ffffffffc1a42c80 fld ffffffffc1a30000 126976 /tmp/crash-anaysis.WRInm/modules/fld.ko ffffffffc1a62ac0 fid ffffffffc1a50000 126976 /tmp/crash-anaysis.WRInm/modules/fid.ko ffffffffc1a82740 ec ffffffffc1a70000 81920 /tmp/crash-anaysis.WRInm/modules/ec.ko ffffffffc1ac2080 lmv ffffffffc1a85000 372736 /tmp/crash-anaysis.WRInm/modules/lmv.ko ffffffffc1b63440 osc ffffffffc1ae1000 790528 /tmp/crash-anaysis.WRInm/modules/osc.ko ffffffffc1bfba80 lov ffffffffc1ba3000 552960 /tmp/crash-anaysis.WRInm/modules/lov.ko ffffffffc1c75b80 mdc ffffffffc1c2b000 466944 /tmp/crash-anaysis.WRInm/modules/mdc.ko ffffffffc1cba000 mgc ffffffffc1c9e000 184320 /tmp/crash-anaysis.WRInm/modules/mgc.ko ffffffffc1ced5c0 obdecho ffffffffc1ccc000 225280 /tmp/crash-anaysis.WRInm/modules/obdecho.ko ffffffffc1dbe340 lfsck ffffffffc1d04000 1081344 /tmp/crash-anaysis.WRInm/modules/lfsck.ko ffffffffc1e8d240 lquota ffffffffc1e0d000 786432 /tmp/crash-anaysis.WRInm/modules/lquota.ko ffffffffc1f39b80 osd_zfs ffffffffc1ece000 659456 /tmp/crash-anaysis.WRInm/modules/osd_zfs.ko ffffffffc1fd3400 mgs ffffffffc1f70000 626688 /tmp/crash-anaysis.WRInm/modules/mgs.ko ffffffffc20850c0 mdd ffffffffc200a000 745472 /tmp/crash-anaysis.WRInm/modules/mdd.ko ffffffffc21cf900 mdt ffffffffc20c1000 1654784 /tmp/crash-anaysis.WRInm/modules/mdt.ko ffffffffc2301680 lod ffffffffc2256000 1056768 /tmp/crash-anaysis.WRInm/modules/lod.ko ffffffffc23c7e40 ofd ffffffffc2359000 688128 /tmp/crash-anaysis.WRInm/modules/ofd.ko ffffffffc245df80 osp ffffffffc2402000 573440 /tmp/crash-anaysis.WRInm/modules/osp.ko ffffffffc25c4580 lustre ffffffffc248f000 1912832 /tmp/crash-anaysis.WRInm/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, 0xffff9b1345fd5248) 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 118 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, 0xffff9b1351b4c668) 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 124 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, 0xffff9b13430f0c08) 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 125 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, 0xffff9b13451a3048) 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 182 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 549 total debug pages from 4 CPUs to /tmp/crash-anaysis.WRInm/lustre.bin