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.g67Ul/vmlinux [TAINTED] DUMPFILE: /exports/testreports/68888/testresults/sanity-lfsck-zfs-rocky8.10_x86_64-rocky8.10_x86_64/oleg331-server-vmcore [PARTIAL DUMP] CPUS: 4 DATE: Thu Aug 27 16:44:48 EDT 2026 UPTIME: 00:44:12 LOAD AVERAGE: 2.76, 1.99, 1.76 TASKS: 347 NODENAME: oleg331-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: 84964 COMMAND: "ll_ost_io00_003" TASK: ffff91f2866927c0 [THREAD_INFO: ffff91f2866927c0] CPU: 2 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 intel_rapl_msr 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 ata_generic 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 serio_raw module mod: cannot find or load object file for crct10dif_pclmul 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 ata_piix module mod: cannot find or load object file for crc32c_intel module mod: cannot find or load object file for squashfs module mod: cannot find or load object file for intel_rapl_common module mod: cannot find or load object file for sb_edac module mod: cannot find or load object file for rapl 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 ffffffffc0685c80 fld ffffffffc0673000 126976 /tmp/crash-anaysis.g67Ul/modules/fld.ko ffffffffc06a5740 ec ffffffffc0693000 81920 /tmp/crash-anaysis.g67Ul/modules/ec.ko mod: cannot find or load object file for spl module mod: cannot find or load object file for zfs module ffffffffc0ff8740 libcfs ffffffffc0fd8000 225280 /tmp/crash-anaysis.g67Ul/modules/libcfs.ko ffffffffc10eb3c0 lnet ffffffffc1010000 1490944 /tmp/crash-anaysis.g67Ul/modules/lnet.ko ffffffffc11a6900 ksocklnd ffffffffc117d000 270336 /tmp/crash-anaysis.g67Ul/modules/ksocklnd.ko ffffffffc13070c0 obdclass ffffffffc11c0000 4415488 /tmp/crash-anaysis.g67Ul/modules/obdclass.ko ffffffffc18830c0 ptlrpc ffffffffc15f7000 4173824 /tmp/crash-anaysis.g67Ul/modules/ptlrpc.ko ffffffffc1a41880 ptlrpc_gss ffffffffc19f3000 524288 /tmp/crash-anaysis.g67Ul/modules/ptlrpc_gss.ko ffffffffc1a86ac0 fid ffffffffc1a74000 126976 /tmp/crash-anaysis.g67Ul/modules/fid.ko ffffffffc1ad1080 lmv ffffffffc1a94000 372736 /tmp/crash-anaysis.g67Ul/modules/lmv.ko ffffffffc1b72440 osc ffffffffc1af0000 790528 /tmp/crash-anaysis.g67Ul/modules/osc.ko ffffffffc1c0aa80 lov ffffffffc1bb2000 552960 /tmp/crash-anaysis.g67Ul/modules/lov.ko ffffffffc1c84b80 mdc ffffffffc1c3a000 466944 /tmp/crash-anaysis.g67Ul/modules/mdc.ko ffffffffc1cc9000 mgc ffffffffc1cad000 184320 /tmp/crash-anaysis.g67Ul/modules/mgc.ko ffffffffc1cfc5c0 obdecho ffffffffc1cdb000 225280 /tmp/crash-anaysis.g67Ul/modules/obdecho.ko ffffffffc1dcd340 lfsck ffffffffc1d13000 1081344 /tmp/crash-anaysis.g67Ul/modules/lfsck.ko ffffffffc1e9c240 lquota ffffffffc1e1c000 786432 /tmp/crash-anaysis.g67Ul/modules/lquota.ko ffffffffc1f48b80 osd_zfs ffffffffc1edd000 659456 /tmp/crash-anaysis.g67Ul/modules/osd_zfs.ko ffffffffc1fe2400 mgs ffffffffc1f7f000 626688 /tmp/crash-anaysis.g67Ul/modules/mgs.ko ffffffffc20940c0 mdd ffffffffc2019000 745472 /tmp/crash-anaysis.g67Ul/modules/mdd.ko ffffffffc21de900 mdt ffffffffc20d0000 1654784 /tmp/crash-anaysis.g67Ul/modules/mdt.ko ffffffffc2310680 lod ffffffffc2265000 1056768 /tmp/crash-anaysis.g67Ul/modules/lod.ko ffffffffc23d6e40 ofd ffffffffc2368000 688128 /tmp/crash-anaysis.g67Ul/modules/ofd.ko ffffffffc246cf80 osp ffffffffc2411000 573440 /tmp/crash-anaysis.g67Ul/modules/osp.ko ffffffffc25d3580 lustre ffffffffc249e000 1912832 /tmp/crash-anaysis.g67Ul/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, 0xffff91f287133c28) 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 2162 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, 0xffff91f286a62948) 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 2764 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, 0xffff91f189c8b368) 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 2620 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, 0xffff91f1940f8148)