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.Y3d9H/vmlinux [TAINTED] DUMPFILE: /exports/testreports/68876/testresults/sanity-pfl-zfs-rocky8.10_x86_64-rocky8.10_x86_64/oleg227-server-vmcore [PARTIAL DUMP] CPUS: 4 DATE: Thu Aug 27 14:48:07 EDT 2026 UPTIME: 00:59:41 LOAD AVERAGE: 1.80, 1.47, 1.34 TASKS: 391 NODENAME: oleg227-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: 16500 COMMAND: "ll_ost_io00_009" TASK: ffff958c81484f80 [THREAD_INFO: ffff958c81484f80] CPU: 3 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 ghash_clmulni_intel 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 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 pcspkr 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 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 ffffffffc0628c80 fld ffffffffc0616000 126976 /tmp/crash-anaysis.Y3d9H/modules/fld.ko ffffffffc0648740 ec ffffffffc0636000 81920 /tmp/crash-anaysis.Y3d9H/modules/ec.ko mod: cannot find or load object file for spl module mod: cannot find or load object file for zfs module ffffffffc0f9d740 libcfs ffffffffc0f7d000 225280 /tmp/crash-anaysis.Y3d9H/modules/libcfs.ko ffffffffc10903c0 lnet ffffffffc0fb5000 1490944 /tmp/crash-anaysis.Y3d9H/modules/lnet.ko ffffffffc114b900 ksocklnd ffffffffc1122000 270336 /tmp/crash-anaysis.Y3d9H/modules/ksocklnd.ko ffffffffc12a9840 obdclass ffffffffc1165000 4399104 /tmp/crash-anaysis.Y3d9H/modules/obdclass.ko ffffffffc18240c0 ptlrpc ffffffffc1598000 4173824 /tmp/crash-anaysis.Y3d9H/modules/ptlrpc.ko ffffffffc19e2880 ptlrpc_gss ffffffffc1994000 524288 /tmp/crash-anaysis.Y3d9H/modules/ptlrpc_gss.ko ffffffffc1a27ac0 fid ffffffffc1a15000 126976 /tmp/crash-anaysis.Y3d9H/modules/fid.ko ffffffffc1a72080 lmv ffffffffc1a35000 372736 /tmp/crash-anaysis.Y3d9H/modules/lmv.ko ffffffffc1b11d00 osc ffffffffc1a91000 778240 /tmp/crash-anaysis.Y3d9H/modules/osc.ko ffffffffc1ba8a00 lov ffffffffc1b50000 552960 /tmp/crash-anaysis.Y3d9H/modules/lov.ko ffffffffc1c22b80 mdc ffffffffc1bd8000 466944 /tmp/crash-anaysis.Y3d9H/modules/mdc.ko ffffffffc1c67000 mgc ffffffffc1c4b000 184320 /tmp/crash-anaysis.Y3d9H/modules/mgc.ko ffffffffc1c9a5c0 obdecho ffffffffc1c79000 225280 /tmp/crash-anaysis.Y3d9H/modules/obdecho.ko ffffffffc1d6b200 lfsck ffffffffc1cb1000 1081344 /tmp/crash-anaysis.Y3d9H/modules/lfsck.ko ffffffffc1e3a240 lquota ffffffffc1dba000 786432 /tmp/crash-anaysis.Y3d9H/modules/lquota.ko ffffffffc1ee5ac0 osd_zfs ffffffffc1e7b000 655360 /tmp/crash-anaysis.Y3d9H/modules/osd_zfs.ko ffffffffc1f7f400 mgs ffffffffc1f1c000 626688 /tmp/crash-anaysis.Y3d9H/modules/mgs.ko ffffffffc2031080 mdd ffffffffc1fb6000 745472 /tmp/crash-anaysis.Y3d9H/modules/mdd.ko ffffffffc217b840 mdt ffffffffc206d000 1654784 /tmp/crash-anaysis.Y3d9H/modules/mdt.ko ffffffffc22ad480 lod ffffffffc2202000 1052672 /tmp/crash-anaysis.Y3d9H/modules/lod.ko ffffffffc2372c80 ofd ffffffffc2304000 688128 /tmp/crash-anaysis.Y3d9H/modules/ofd.ko ffffffffc2408f80 osp ffffffffc23ad000 573440 /tmp/crash-anaysis.Y3d9H/modules/osp.ko ffffffffc256e6c0 lustre ffffffffc243a000 1912832 /tmp/crash-anaysis.Y3d9H/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, 0xffff958b8294cd68) 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, 0xffff958b82041948) 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, 0xffff958b84619cc8) 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, 0xffff958b811244e8) 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_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 4096 total debug pages from 4 CPUs to /tmp/crash-anaysis.Y3d9H/lustre.bin