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.gVsAy/vmlinux [TAINTED] DUMPFILE: /exports/testreports/70067/testresults/sanity-compr-special9-zfs-rocky8.10_x86_64-rocky8.10_x86_64/oleg648-server-vmcore [PARTIAL DUMP] CPUS: 4 DATE: Thu Sep 10 16:13:52 EDT 2026 UPTIME: 00:05:54 LOAD AVERAGE: 1.38, 1.11, 0.52 TASKS: 346 NODENAME: oleg648-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: 6701 COMMAND: "ll_ost_io00_002" TASK: ffff9e8002dc8000 [THREAD_INFO: ffff9e8002dc8000] 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_region_hash module mod: cannot find or load object file for dm_log 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 ata_generic 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 ata_piix 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 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 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 ffffffffc0603740 libcfs ffffffffc05e3000 225280 /tmp/crash-anaysis.gVsAy/modules/libcfs.ko mod: cannot find or load object file for spl module mod: cannot find or load object file for zfs module ffffffffc10253c0 lnet ffffffffc0f4a000 1490944 /tmp/crash-anaysis.gVsAy/modules/lnet.ko ffffffffc10e0900 ksocklnd ffffffffc10b7000 270336 /tmp/crash-anaysis.gVsAy/modules/ksocklnd.ko ffffffffc1241180 obdclass ffffffffc10fa000 4415488 /tmp/crash-anaysis.gVsAy/modules/obdclass.ko ffffffffc17bd0c0 ptlrpc ffffffffc1531000 4173824 /tmp/crash-anaysis.gVsAy/modules/ptlrpc.ko ffffffffc197b880 ptlrpc_gss ffffffffc192d000 524288 /tmp/crash-anaysis.gVsAy/modules/ptlrpc_gss.ko ffffffffc19c0c80 fld ffffffffc19ae000 126976 /tmp/crash-anaysis.gVsAy/modules/fld.ko ffffffffc19e0ac0 fid ffffffffc19ce000 126976 /tmp/crash-anaysis.gVsAy/modules/fid.ko ffffffffc1a00740 ec ffffffffc19ee000 81920 /tmp/crash-anaysis.gVsAy/modules/ec.ko ffffffffc1a40080 lmv ffffffffc1a03000 372736 /tmp/crash-anaysis.gVsAy/modules/lmv.ko ffffffffc1ae2480 osc ffffffffc1a5f000 794624 /tmp/crash-anaysis.gVsAy/modules/osc.ko ffffffffc1b7ab00 lov ffffffffc1b22000 552960 /tmp/crash-anaysis.gVsAy/modules/lov.ko ffffffffc1bf4b80 mdc ffffffffc1baa000 466944 /tmp/crash-anaysis.gVsAy/modules/mdc.ko ffffffffc1c39000 mgc ffffffffc1c1d000 184320 /tmp/crash-anaysis.gVsAy/modules/mgc.ko ffffffffc1c6c5c0 obdecho ffffffffc1c4b000 225280 /tmp/crash-anaysis.gVsAy/modules/obdecho.ko ffffffffc1d3d340 lfsck ffffffffc1c83000 1081344 /tmp/crash-anaysis.gVsAy/modules/lfsck.ko ffffffffc1e0c240 lquota ffffffffc1d8c000 786432 /tmp/crash-anaysis.gVsAy/modules/lquota.ko ffffffffc1eb8b80 osd_zfs ffffffffc1e4d000 659456 /tmp/crash-anaysis.gVsAy/modules/osd_zfs.ko ffffffffc1f52400 mgs ffffffffc1eef000 626688 /tmp/crash-anaysis.gVsAy/modules/mgs.ko ffffffffc20040c0 mdd ffffffffc1f89000 745472 /tmp/crash-anaysis.gVsAy/modules/mdd.ko ffffffffc214e900 mdt ffffffffc2040000 1654784 /tmp/crash-anaysis.gVsAy/modules/mdt.ko ffffffffc2282900 lod ffffffffc21d5000 1064960 /tmp/crash-anaysis.gVsAy/modules/lod.ko ffffffffc2349e40 ofd ffffffffc22da000 692224 /tmp/crash-anaysis.gVsAy/modules/ofd.ko ffffffffc23dff80 osp ffffffffc2384000 573440 /tmp/crash-anaysis.gVsAy/modules/osp.ko ffffffffc2547780 lustre ffffffffc2411000 1925120 /tmp/crash-anaysis.gVsAy/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, 0xffff9e800a029848) 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 160 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, 0xffff9e8002f4ab08) 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 113 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, 0xffff9e800b75e468) 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 143 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, 0xffff9e80112ca368) 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 115 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 531 total debug pages from 4 CPUs to /tmp/crash-anaysis.gVsAy/lustre.bin