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.zRDBB/vmlinux [TAINTED] DUMPFILE: /exports/testreports/68879/testresults/sanity-lfsck-zfs-rocky8.10_x86_64-rocky8.10_x86_64/oleg420-server-vmcore [PARTIAL DUMP] CPUS: 4 DATE: Thu Aug 27 15:39:06 EDT 2026 UPTIME: 00:45:50 LOAD AVERAGE: 2.71, 2.20, 1.90 TASKS: 346 NODENAME: oleg420-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: 82236 COMMAND: "ll_ost_io00_000" TASK: ffff8c87cb890000 [THREAD_INFO: ffff8c87cb890000] 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_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 crc32_pclmul 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 ata_generic 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 ata_piix module mod: cannot find or load object file for intel_rapl_msr module mod: cannot find or load object file for ghash_clmulni_intel module mod: cannot find or load object file for squashfs module mod: cannot find or load object file for i2c_piix4 module mod: cannot find or load object file for sb_edac module mod: cannot find or load object file for intel_rapl_common module mod: cannot find or load object file for dns_resolver 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 ffffffffc07db740 libcfs ffffffffc07bb000 225280 /tmp/crash-anaysis.zRDBB/modules/libcfs.ko mod: cannot find or load object file for spl module mod: cannot find or load object file for zfs module ffffffffc11fd3c0 lnet ffffffffc1122000 1490944 /tmp/crash-anaysis.zRDBB/modules/lnet.ko ffffffffc12b8900 ksocklnd ffffffffc128f000 270336 /tmp/crash-anaysis.zRDBB/modules/ksocklnd.ko ffffffffc1416840 obdclass ffffffffc12d2000 4399104 /tmp/crash-anaysis.zRDBB/modules/obdclass.ko ffffffffc19910c0 ptlrpc ffffffffc1705000 4173824 /tmp/crash-anaysis.zRDBB/modules/ptlrpc.ko ffffffffc1b4f880 ptlrpc_gss ffffffffc1b01000 524288 /tmp/crash-anaysis.zRDBB/modules/ptlrpc_gss.ko ffffffffc1b94c80 fld ffffffffc1b82000 126976 /tmp/crash-anaysis.zRDBB/modules/fld.ko ffffffffc1bb4ac0 fid ffffffffc1ba2000 126976 /tmp/crash-anaysis.zRDBB/modules/fid.ko ffffffffc1bd4740 ec ffffffffc1bc2000 81920 /tmp/crash-anaysis.zRDBB/modules/ec.ko ffffffffc1c14080 lmv ffffffffc1bd7000 372736 /tmp/crash-anaysis.zRDBB/modules/lmv.ko ffffffffc1cb3d00 osc ffffffffc1c33000 778240 /tmp/crash-anaysis.zRDBB/modules/osc.ko ffffffffc1d4aa00 lov ffffffffc1cf2000 552960 /tmp/crash-anaysis.zRDBB/modules/lov.ko ffffffffc1dc4b80 mdc ffffffffc1d7a000 466944 /tmp/crash-anaysis.zRDBB/modules/mdc.ko ffffffffc1e09000 mgc ffffffffc1ded000 184320 /tmp/crash-anaysis.zRDBB/modules/mgc.ko ffffffffc1e3c5c0 obdecho ffffffffc1e1b000 225280 /tmp/crash-anaysis.zRDBB/modules/obdecho.ko ffffffffc1f0d200 lfsck ffffffffc1e53000 1081344 /tmp/crash-anaysis.zRDBB/modules/lfsck.ko ffffffffc1fdc240 lquota ffffffffc1f5c000 786432 /tmp/crash-anaysis.zRDBB/modules/lquota.ko ffffffffc2087ac0 osd_zfs ffffffffc201d000 655360 /tmp/crash-anaysis.zRDBB/modules/osd_zfs.ko ffffffffc2121400 mgs ffffffffc20be000 626688 /tmp/crash-anaysis.zRDBB/modules/mgs.ko ffffffffc21d3080 mdd ffffffffc2158000 745472 /tmp/crash-anaysis.zRDBB/modules/mdd.ko ffffffffc231d840 mdt ffffffffc220f000 1654784 /tmp/crash-anaysis.zRDBB/modules/mdt.ko ffffffffc244f480 lod ffffffffc23a4000 1052672 /tmp/crash-anaysis.zRDBB/modules/lod.ko ffffffffc2514bc0 ofd ffffffffc24a6000 688128 /tmp/crash-anaysis.zRDBB/modules/ofd.ko ffffffffc25aaf80 osp ffffffffc254f000 573440 /tmp/crash-anaysis.zRDBB/modules/osp.ko ffffffffc27106c0 lustre ffffffffc25dc000 1912832 /tmp/crash-anaysis.zRDBB/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, 0xffff8c87d38bf188) 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 2107 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, 0xffff8c88e001cb28) 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 2382 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, 0xffff8c87cb1b6828) 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 2389 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, 0xffff8c87c4e32fe8)