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.KulCQ/vmlinux [TAINTED] DUMPFILE: /exports/testreports/68904/testresults/sanity-special5-zfs-rocky8.10_x86_64-rocky8.10_x86_64/oleg223-server-vmcore [PARTIAL DUMP] CPUS: 4 DATE: Wed Aug 26 11:47:40 EDT 2026 UPTIME: 00:06:44 LOAD AVERAGE: 1.02, 1.50, 0.82 TASKS: 358 NODENAME: oleg223-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 0000000000000060" PID: 6704 COMMAND: "ll_ost00_001" TASK: ffff9e164519cf80 [THREAD_INFO: ffff9e164519cf80] CPU: 0 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 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 i2c_piix4 module mod: cannot find or load object file for ata_piix module mod: cannot find or load object file for crc32c_intel module mod: cannot find or load object file for serio_raw 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 ata_generic module mod: cannot find or load object file for squashfs module mod: cannot find or load object file for dns_resolver 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 rapl 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 ffffffffc0563740 libcfs ffffffffc0543000 225280 /tmp/crash-anaysis.KulCQ/modules/libcfs.ko mod: cannot find or load object file for spl module mod: cannot find or load object file for zfs module ffffffffc0f853c0 lnet ffffffffc0eaa000 1490944 /tmp/crash-anaysis.KulCQ/modules/lnet.ko ffffffffc1040900 ksocklnd ffffffffc1017000 270336 /tmp/crash-anaysis.KulCQ/modules/ksocklnd.ko ffffffffc11a0fc0 obdclass ffffffffc105a000 4415488 /tmp/crash-anaysis.KulCQ/modules/obdclass.ko ffffffffc171d0c0 ptlrpc ffffffffc1491000 4173824 /tmp/crash-anaysis.KulCQ/modules/ptlrpc.ko ffffffffc18db880 ptlrpc_gss ffffffffc188d000 524288 /tmp/crash-anaysis.KulCQ/modules/ptlrpc_gss.ko ffffffffc1920c80 fld ffffffffc190e000 126976 /tmp/crash-anaysis.KulCQ/modules/fld.ko ffffffffc1940ac0 fid ffffffffc192e000 126976 /tmp/crash-anaysis.KulCQ/modules/fid.ko ffffffffc1960740 ec ffffffffc194e000 81920 /tmp/crash-anaysis.KulCQ/modules/ec.ko ffffffffc19a0080 lmv ffffffffc1963000 372736 /tmp/crash-anaysis.KulCQ/modules/lmv.ko ffffffffc1a41300 osc ffffffffc19bf000 790528 /tmp/crash-anaysis.KulCQ/modules/osc.ko ffffffffc1ad99c0 lov ffffffffc1a81000 552960 /tmp/crash-anaysis.KulCQ/modules/lov.ko ffffffffc1b53b80 mdc ffffffffc1b09000 466944 /tmp/crash-anaysis.KulCQ/modules/mdc.ko ffffffffc1b98000 mgc ffffffffc1b7c000 184320 /tmp/crash-anaysis.KulCQ/modules/mgc.ko ffffffffc1bcb5c0 obdecho ffffffffc1baa000 225280 /tmp/crash-anaysis.KulCQ/modules/obdecho.ko ffffffffc1c9c340 lfsck ffffffffc1be2000 1081344 /tmp/crash-anaysis.KulCQ/modules/lfsck.ko ffffffffc1d6b240 lquota ffffffffc1ceb000 786432 /tmp/crash-anaysis.KulCQ/modules/lquota.ko ffffffffc1e17b80 osd_zfs ffffffffc1dac000 659456 /tmp/crash-anaysis.KulCQ/modules/osd_zfs.ko ffffffffc1eb1400 mgs ffffffffc1e4e000 626688 /tmp/crash-anaysis.KulCQ/modules/mgs.ko ffffffffc1f63080 mdd ffffffffc1ee8000 745472 /tmp/crash-anaysis.KulCQ/modules/mdd.ko ffffffffc20ad940 mdt ffffffffc1f9f000 1654784 /tmp/crash-anaysis.KulCQ/modules/mdt.ko ffffffffc21df480 lod ffffffffc2134000 1056768 /tmp/crash-anaysis.KulCQ/modules/lod.ko ffffffffc22a6e40 ofd ffffffffc2237000 692224 /tmp/crash-anaysis.KulCQ/modules/ofd.ko ffffffffc233cf80 osp ffffffffc22e1000 573440 /tmp/crash-anaysis.KulCQ/modules/osp.ko ffffffffc24a24c0 lustre ffffffffc236e000 1908736 /tmp/crash-anaysis.KulCQ/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, 0xffff9e164a55e3c8) 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 138 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, 0xffff9e16587624e8) 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 132 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, 0xffff9e1659ddd2c8) 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 138 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, 0xffff9e164a3bb148) 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 143 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 551 total debug pages from 4 CPUs to /tmp/crash-anaysis.KulCQ/lustre.bin