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.M2f5b/vmlinux [TAINTED] DUMPFILE: /exports/testreports/68896/testresults/sanity-compr-special3-zfs-DNE-rocky8.10_x86_64-rocky8.10_x86_64/oleg132-server-vmcore [PARTIAL DUMP] CPUS: 4 DATE: Wed Aug 26 12:03:16 EDT 2026 UPTIME: 00:07:23 LOAD AVERAGE: 1.79, 1.42, 0.71 TASKS: 402 NODENAME: oleg132-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: 8096 COMMAND: "ll_ost_io00_000" TASK: ffff8d9cd8790000 [THREAD_INFO: ffff8d9cd8790000] 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 libata module mod: cannot find or load object file for serio_raw module mod: cannot find or load object file for crc32c_intel module mod: cannot find or load object file for ata_generic 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 ata_piix module mod: cannot find or load object file for squashfs 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 crct10dif_pclmul module mod: cannot find or load object file for i2c_piix4 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 intel_rapl_common 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 ffffffffc07bd740 libcfs ffffffffc079d000 225280 /tmp/crash-anaysis.M2f5b/modules/libcfs.ko mod: cannot find or load object file for spl module mod: cannot find or load object file for zfs module ffffffffc11df3c0 lnet ffffffffc1104000 1490944 /tmp/crash-anaysis.M2f5b/modules/lnet.ko ffffffffc129a900 ksocklnd ffffffffc1271000 270336 /tmp/crash-anaysis.M2f5b/modules/ksocklnd.ko ffffffffc13fb0c0 obdclass ffffffffc12b4000 4415488 /tmp/crash-anaysis.M2f5b/modules/obdclass.ko ffffffffc19770c0 ptlrpc ffffffffc16eb000 4173824 /tmp/crash-anaysis.M2f5b/modules/ptlrpc.ko ffffffffc1b35880 ptlrpc_gss ffffffffc1ae7000 524288 /tmp/crash-anaysis.M2f5b/modules/ptlrpc_gss.ko ffffffffc1b7ac80 fld ffffffffc1b68000 126976 /tmp/crash-anaysis.M2f5b/modules/fld.ko ffffffffc1b9aac0 fid ffffffffc1b88000 126976 /tmp/crash-anaysis.M2f5b/modules/fid.ko ffffffffc1bba740 ec ffffffffc1ba8000 81920 /tmp/crash-anaysis.M2f5b/modules/ec.ko ffffffffc1bfa080 lmv ffffffffc1bbd000 372736 /tmp/crash-anaysis.M2f5b/modules/lmv.ko ffffffffc1c9b380 osc ffffffffc1c19000 790528 /tmp/crash-anaysis.M2f5b/modules/osc.ko ffffffffc1d33a00 lov ffffffffc1cdb000 552960 /tmp/crash-anaysis.M2f5b/modules/lov.ko ffffffffc1dadb80 mdc ffffffffc1d63000 466944 /tmp/crash-anaysis.M2f5b/modules/mdc.ko ffffffffc1df2000 mgc ffffffffc1dd6000 184320 /tmp/crash-anaysis.M2f5b/modules/mgc.ko ffffffffc1e255c0 obdecho ffffffffc1e04000 225280 /tmp/crash-anaysis.M2f5b/modules/obdecho.ko ffffffffc1ef6340 lfsck ffffffffc1e3c000 1081344 /tmp/crash-anaysis.M2f5b/modules/lfsck.ko ffffffffc1fc5240 lquota ffffffffc1f45000 786432 /tmp/crash-anaysis.M2f5b/modules/lquota.ko ffffffffc2071b80 osd_zfs ffffffffc2006000 659456 /tmp/crash-anaysis.M2f5b/modules/osd_zfs.ko ffffffffc210b400 mgs ffffffffc20a8000 626688 /tmp/crash-anaysis.M2f5b/modules/mgs.ko ffffffffc21bd080 mdd ffffffffc2142000 745472 /tmp/crash-anaysis.M2f5b/modules/mdd.ko ffffffffc2307900 mdt ffffffffc21f9000 1654784 /tmp/crash-anaysis.M2f5b/modules/mdt.ko ffffffffc2439540 lod ffffffffc238e000 1056768 /tmp/crash-anaysis.M2f5b/modules/lod.ko ffffffffc24ffe40 ofd ffffffffc2491000 688128 /tmp/crash-anaysis.M2f5b/modules/ofd.ko ffffffffc2595f80 osp ffffffffc253a000 573440 /tmp/crash-anaysis.M2f5b/modules/osp.ko ffffffffc26fb4c0 lustre ffffffffc25c7000 1908736 /tmp/crash-anaysis.M2f5b/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, 0xffff8d9ceac2f548) 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 210 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, 0xffff8d9cc2f3b9c8) 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 201 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, 0xffff8d9cd1eaf828) 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 212 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, 0xffff8d9cc970b748) 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 229 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 852 total debug pages from 4 CPUs to /tmp/crash-anaysis.M2f5b/lustre.bin