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.b4wRO/vmlinux [TAINTED] DUMPFILE: /exports/testreports/68863/testresults/sanity3-zfs-rocky8.10_x86_64-rocky8.10_x86_64/oleg346-server-vmcore [PARTIAL DUMP] CPUS: 4 DATE: Thu Aug 27 11:17:26 EDT 2026 UPTIME: 02:10:06 LOAD AVERAGE: 0.55, 1.59, 1.75 TASKS: 406 NODENAME: oleg346-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: 42081 COMMAND: "ll_ost_io00_007" TASK: ffff8f0048b3a7c0 [THREAD_INFO: ffff8f0048b3a7c0] 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_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 libata 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 pcspkr 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 intel_rapl_msr 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 dns_resolver 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 squashfs module mod: cannot find or load object file for rapl 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 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 ffffffffc0500740 libcfs ffffffffc04e0000 225280 /tmp/crash-anaysis.b4wRO/modules/libcfs.ko mod: cannot find or load object file for spl module mod: cannot find or load object file for zfs module ffffffffc0f223c0 lnet ffffffffc0e47000 1490944 /tmp/crash-anaysis.b4wRO/modules/lnet.ko ffffffffc0fdd900 ksocklnd ffffffffc0fb4000 270336 /tmp/crash-anaysis.b4wRO/modules/ksocklnd.ko ffffffffc113ca80 obdclass ffffffffc0ff7000 4403200 /tmp/crash-anaysis.b4wRO/modules/obdclass.ko ffffffffc16b70c0 ptlrpc ffffffffc142b000 4173824 /tmp/crash-anaysis.b4wRO/modules/ptlrpc.ko ffffffffc1875880 ptlrpc_gss ffffffffc1827000 524288 /tmp/crash-anaysis.b4wRO/modules/ptlrpc_gss.ko ffffffffc18bac80 fld ffffffffc18a8000 126976 /tmp/crash-anaysis.b4wRO/modules/fld.ko ffffffffc18daac0 fid ffffffffc18c8000 126976 /tmp/crash-anaysis.b4wRO/modules/fid.ko ffffffffc18fa740 ec ffffffffc18e8000 81920 /tmp/crash-anaysis.b4wRO/modules/ec.ko ffffffffc193a080 lmv ffffffffc18fd000 372736 /tmp/crash-anaysis.b4wRO/modules/lmv.ko ffffffffc19db2c0 osc ffffffffc1959000 790528 /tmp/crash-anaysis.b4wRO/modules/osc.ko ffffffffc1a73a00 lov ffffffffc1a1b000 552960 /tmp/crash-anaysis.b4wRO/modules/lov.ko ffffffffc1aedb80 mdc ffffffffc1aa3000 466944 /tmp/crash-anaysis.b4wRO/modules/mdc.ko ffffffffc1b32000 mgc ffffffffc1b16000 184320 /tmp/crash-anaysis.b4wRO/modules/mgc.ko ffffffffc1b655c0 obdecho ffffffffc1b44000 225280 /tmp/crash-anaysis.b4wRO/modules/obdecho.ko ffffffffc1c36340 lfsck ffffffffc1b7c000 1081344 /tmp/crash-anaysis.b4wRO/modules/lfsck.ko ffffffffc1d05240 lquota ffffffffc1c85000 786432 /tmp/crash-anaysis.b4wRO/modules/lquota.ko ffffffffc1db0ac0 osd_zfs ffffffffc1d46000 655360 /tmp/crash-anaysis.b4wRO/modules/osd_zfs.ko ffffffffc1e4a400 mgs ffffffffc1de7000 626688 /tmp/crash-anaysis.b4wRO/modules/mgs.ko ffffffffc1efc080 mdd ffffffffc1e81000 745472 /tmp/crash-anaysis.b4wRO/modules/mdd.ko ffffffffc2046940 mdt ffffffffc1f38000 1654784 /tmp/crash-anaysis.b4wRO/modules/mdt.ko ffffffffc2178480 lod ffffffffc20cd000 1052672 /tmp/crash-anaysis.b4wRO/modules/lod.ko ffffffffc223ca40 ofd ffffffffc21cf000 679936 /tmp/crash-anaysis.b4wRO/modules/ofd.ko ffffffffc22d1f80 osp ffffffffc2276000 573440 /tmp/crash-anaysis.b4wRO/modules/osp.ko ffffffffc24376c0 lustre ffffffffc2303000 1912832 /tmp/crash-anaysis.b4wRO/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, 0xffff8eff420dad08) 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, 0xffff8eff42c8fba8) 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, 0xffff8eff413168c8) 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, 0xffff8eff435e81c8) 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, 0xffff8f0047d64568) 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, 0xffff8f005821d0e8) 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, 0xffff8f0044e235c8) 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, 0xffff8eff422f94a8) 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.b4wRO/lustre.bin