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.WNEmZ/vmlinux [TAINTED] DUMPFILE: /exports/testreports/70067/testresults/sanity-compr-special7-zfs-rocky8.10_x86_64-rocky8.10_x86_64/oleg111-server-vmcore [PARTIAL DUMP] CPUS: 4 DATE: Thu Sep 10 16:15:04 EDT 2026 UPTIME: 00:05:55 LOAD AVERAGE: 1.74, 1.35, 0.63 TASKS: 348 NODENAME: oleg111-server.virtnet RELEASE: 4.18.0rh8.10-debug VERSION: #2 SMP Mon Jul 14 01:24:22 EDT 2025 MACHINE: x86_64 (2400 Mhz) MEMORY: 4.1 GB PANIC: "BUG: unable to handle kernel NULL pointer dereference at 000000000000002e" PID: 6700 COMMAND: "ll_ost_io00_002" TASK: ffff8d5de03dcf80 [THREAD_INFO: ffff8d5de03dcf80] 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_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 ata_generic 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 rapl module mod: cannot find or load object file for intel_rapl_msr module mod: cannot find or load object file for serio_raw module mod: cannot find or load object file for i2c_piix4 module mod: cannot find or load object file for ata_piix module mod: cannot find or load object file for dns_resolver module mod: cannot find or load object file for crc32c_intel 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 rpcsec_gss_krb5 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 MODULE NAME BASE SIZE OBJECT FILE ffffffffc057a740 libcfs ffffffffc055a000 225280 /tmp/crash-anaysis.WNEmZ/modules/libcfs.ko mod: cannot find or load object file for spl module mod: cannot find or load object file for zfs module ffffffffc0f9c3c0 lnet ffffffffc0ec1000 1490944 /tmp/crash-anaysis.WNEmZ/modules/lnet.ko ffffffffc1057900 ksocklnd ffffffffc102e000 270336 /tmp/crash-anaysis.WNEmZ/modules/ksocklnd.ko ffffffffc11b8180 obdclass ffffffffc1071000 4415488 /tmp/crash-anaysis.WNEmZ/modules/obdclass.ko ffffffffc17340c0 ptlrpc ffffffffc14a8000 4173824 /tmp/crash-anaysis.WNEmZ/modules/ptlrpc.ko ffffffffc18f2880 ptlrpc_gss ffffffffc18a4000 524288 /tmp/crash-anaysis.WNEmZ/modules/ptlrpc_gss.ko ffffffffc1937c80 fld ffffffffc1925000 126976 /tmp/crash-anaysis.WNEmZ/modules/fld.ko ffffffffc1957ac0 fid ffffffffc1945000 126976 /tmp/crash-anaysis.WNEmZ/modules/fid.ko ffffffffc1977740 ec ffffffffc1965000 81920 /tmp/crash-anaysis.WNEmZ/modules/ec.ko ffffffffc19b7080 lmv ffffffffc197a000 372736 /tmp/crash-anaysis.WNEmZ/modules/lmv.ko ffffffffc1a59480 osc ffffffffc19d6000 794624 /tmp/crash-anaysis.WNEmZ/modules/osc.ko ffffffffc1af1b00 lov ffffffffc1a99000 552960 /tmp/crash-anaysis.WNEmZ/modules/lov.ko ffffffffc1b6bb80 mdc ffffffffc1b21000 466944 /tmp/crash-anaysis.WNEmZ/modules/mdc.ko ffffffffc1bb0000 mgc ffffffffc1b94000 184320 /tmp/crash-anaysis.WNEmZ/modules/mgc.ko ffffffffc1be35c0 obdecho ffffffffc1bc2000 225280 /tmp/crash-anaysis.WNEmZ/modules/obdecho.ko ffffffffc1cb4340 lfsck ffffffffc1bfa000 1081344 /tmp/crash-anaysis.WNEmZ/modules/lfsck.ko ffffffffc1d83240 lquota ffffffffc1d03000 786432 /tmp/crash-anaysis.WNEmZ/modules/lquota.ko ffffffffc1e2fb80 osd_zfs ffffffffc1dc4000 659456 /tmp/crash-anaysis.WNEmZ/modules/osd_zfs.ko ffffffffc1ec9400 mgs ffffffffc1e66000 626688 /tmp/crash-anaysis.WNEmZ/modules/mgs.ko ffffffffc1f7b0c0 mdd ffffffffc1f00000 745472 /tmp/crash-anaysis.WNEmZ/modules/mdd.ko ffffffffc20c5900 mdt ffffffffc1fb7000 1654784 /tmp/crash-anaysis.WNEmZ/modules/mdt.ko ffffffffc21f9900 lod ffffffffc214c000 1064960 /tmp/crash-anaysis.WNEmZ/modules/lod.ko ffffffffc22c0e40 ofd ffffffffc2251000 692224 /tmp/crash-anaysis.WNEmZ/modules/ofd.ko ffffffffc2356f80 osp ffffffffc22fb000 573440 /tmp/crash-anaysis.WNEmZ/modules/osp.ko ffffffffc24be780 lustre ffffffffc2388000 1925120 /tmp/crash-anaysis.WNEmZ/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, 0xffff8d5dc676b808) 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 128 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, 0xffff8d5dc52d2608) 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 163 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, 0xffff8d5dc4fa4ce8) 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 124 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, 0xffff8d5dc370a7c8) 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 125 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 540 total debug pages from 4 CPUs to /tmp/crash-anaysis.WNEmZ/lustre.bin