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.hc8JZ/vmlinux [TAINTED] DUMPFILE: /exports/testreports/68875/testresults/sanity3-zfs-rocky8.10_x86_64-rocky8.10_x86_64/oleg458-server-vmcore [PARTIAL DUMP] CPUS: 4 DATE: Thu Aug 27 15:16:26 EDT 2026 UPTIME: 02:24:42 LOAD AVERAGE: 0.51, 1.25, 1.45 TASKS: 400 NODENAME: oleg458-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 000000000000002e" PID: 15336 COMMAND: "ll_ost_io00_003" TASK: ffff8d43c64ba7c0 [THREAD_INFO: ffff8d43c64ba7c0] 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_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 pcspkr module mod: cannot find or load object file for ata_generic module mod: cannot find or load object file for i2c_piix4 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 crct10dif_pclmul module mod: cannot find or load object file for rapl 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 intel_rapl_common 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 dns_resolver 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 ffffffffc06b9740 libcfs ffffffffc0699000 225280 /tmp/crash-anaysis.hc8JZ/modules/libcfs.ko mod: cannot find or load object file for spl module mod: cannot find or load object file for zfs module ffffffffc10db3c0 lnet ffffffffc1000000 1490944 /tmp/crash-anaysis.hc8JZ/modules/lnet.ko ffffffffc1196900 ksocklnd ffffffffc116d000 270336 /tmp/crash-anaysis.hc8JZ/modules/ksocklnd.ko ffffffffc12f4840 obdclass ffffffffc11b0000 4399104 /tmp/crash-anaysis.hc8JZ/modules/obdclass.ko ffffffffc186f0c0 ptlrpc ffffffffc15e3000 4173824 /tmp/crash-anaysis.hc8JZ/modules/ptlrpc.ko ffffffffc1a2d880 ptlrpc_gss ffffffffc19df000 524288 /tmp/crash-anaysis.hc8JZ/modules/ptlrpc_gss.ko ffffffffc1a72c80 fld ffffffffc1a60000 126976 /tmp/crash-anaysis.hc8JZ/modules/fld.ko ffffffffc1a92ac0 fid ffffffffc1a80000 126976 /tmp/crash-anaysis.hc8JZ/modules/fid.ko ffffffffc1ab2740 ec ffffffffc1aa0000 81920 /tmp/crash-anaysis.hc8JZ/modules/ec.ko ffffffffc1af2080 lmv ffffffffc1ab5000 372736 /tmp/crash-anaysis.hc8JZ/modules/lmv.ko ffffffffc1b91d00 osc ffffffffc1b11000 778240 /tmp/crash-anaysis.hc8JZ/modules/osc.ko ffffffffc1c28a00 lov ffffffffc1bd0000 552960 /tmp/crash-anaysis.hc8JZ/modules/lov.ko ffffffffc1ca2b80 mdc ffffffffc1c58000 466944 /tmp/crash-anaysis.hc8JZ/modules/mdc.ko ffffffffc1ce7000 mgc ffffffffc1ccb000 184320 /tmp/crash-anaysis.hc8JZ/modules/mgc.ko ffffffffc1d1a5c0 obdecho ffffffffc1cf9000 225280 /tmp/crash-anaysis.hc8JZ/modules/obdecho.ko ffffffffc1deb200 lfsck ffffffffc1d31000 1081344 /tmp/crash-anaysis.hc8JZ/modules/lfsck.ko ffffffffc1eba240 lquota ffffffffc1e3a000 786432 /tmp/crash-anaysis.hc8JZ/modules/lquota.ko ffffffffc1f65ac0 osd_zfs ffffffffc1efb000 655360 /tmp/crash-anaysis.hc8JZ/modules/osd_zfs.ko ffffffffc1fff400 mgs ffffffffc1f9c000 626688 /tmp/crash-anaysis.hc8JZ/modules/mgs.ko ffffffffc20b1080 mdd ffffffffc2036000 745472 /tmp/crash-anaysis.hc8JZ/modules/mdd.ko ffffffffc21fb840 mdt ffffffffc20ed000 1654784 /tmp/crash-anaysis.hc8JZ/modules/mdt.ko ffffffffc232d480 lod ffffffffc2282000 1052672 /tmp/crash-anaysis.hc8JZ/modules/lod.ko ffffffffc23f2c80 ofd ffffffffc2384000 688128 /tmp/crash-anaysis.hc8JZ/modules/ofd.ko ffffffffc2488f80 osp ffffffffc242d000 573440 /tmp/crash-anaysis.hc8JZ/modules/osp.ko ffffffffc25ee6c0 lustre ffffffffc24ba000 1912832 /tmp/crash-anaysis.hc8JZ/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, 0xffff8d43c3729ce8) 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 1024 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, 0xffff8d43e07a73a8) 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 1024 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, 0xffff8d43c5352708) 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 1024 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, 0xffff8d42c7b3bee8) 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 1024 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_trace_pages(0, 5, 0xffff8d42c726d848) 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 128 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_trace_pages(1, 5, 0xffff8d43e0ea1ea8) 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 128 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_trace_pages(2, 5, 0xffff8d43c9e4b048) 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 128 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_trace_pages(3, 5, 0xffff8d43c5318308) 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 128 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 4608 total debug pages from 4 CPUs to /tmp/crash-anaysis.hc8JZ/lustre.bin