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.B3GOl/vmlinux [TAINTED] DUMPFILE: /exports/testreports/68904/testresults/sanity-special2-zfs-DNE-rocky8.10_x86_64-rocky8.10_x86_64/oleg143-server-vmcore [PARTIAL DUMP] CPUS: 4 DATE: Wed Aug 26 11:43:37 EDT 2026 UPTIME: 00:02:14 LOAD AVERAGE: 1.45, 0.69, 0.27 TASKS: 422 NODENAME: oleg143-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: 8055 COMMAND: "ll_ost_io00_000" TASK: ffff9f673c6127c0 [THREAD_INFO: ffff9f673c6127c0] 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 serio_raw 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 i2c_piix4 module mod: cannot find or load object file for ata_piix module mod: cannot find or load object file for intel_rapl_msr 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 crc32c_intel module mod: cannot find or load object file for dns_resolver 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 auth_rpcgss 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 rpcsec_gss_krb5 module MODULE NAME BASE SIZE OBJECT FILE ffffffffc076ac80 fld ffffffffc0758000 126976 /tmp/crash-anaysis.B3GOl/modules/fld.ko ffffffffc078a740 ec ffffffffc0778000 81920 /tmp/crash-anaysis.B3GOl/modules/ec.ko mod: cannot find or load object file for spl module mod: cannot find or load object file for zfs module ffffffffc10df740 libcfs ffffffffc10bf000 225280 /tmp/crash-anaysis.B3GOl/modules/libcfs.ko ffffffffc11d23c0 lnet ffffffffc10f7000 1490944 /tmp/crash-anaysis.B3GOl/modules/lnet.ko ffffffffc128d900 ksocklnd ffffffffc1264000 270336 /tmp/crash-anaysis.B3GOl/modules/ksocklnd.ko ffffffffc13edfc0 obdclass ffffffffc12a7000 4415488 /tmp/crash-anaysis.B3GOl/modules/obdclass.ko ffffffffc196a0c0 ptlrpc ffffffffc16de000 4173824 /tmp/crash-anaysis.B3GOl/modules/ptlrpc.ko ffffffffc1b28880 ptlrpc_gss ffffffffc1ada000 524288 /tmp/crash-anaysis.B3GOl/modules/ptlrpc_gss.ko ffffffffc1b6dac0 fid ffffffffc1b5b000 126976 /tmp/crash-anaysis.B3GOl/modules/fid.ko ffffffffc1bb8080 lmv ffffffffc1b7b000 372736 /tmp/crash-anaysis.B3GOl/modules/lmv.ko ffffffffc1c59300 osc ffffffffc1bd7000 790528 /tmp/crash-anaysis.B3GOl/modules/osc.ko ffffffffc1cf19c0 lov ffffffffc1c99000 552960 /tmp/crash-anaysis.B3GOl/modules/lov.ko ffffffffc1d6bb80 mdc ffffffffc1d21000 466944 /tmp/crash-anaysis.B3GOl/modules/mdc.ko ffffffffc1db0000 mgc ffffffffc1d94000 184320 /tmp/crash-anaysis.B3GOl/modules/mgc.ko ffffffffc1de35c0 obdecho ffffffffc1dc2000 225280 /tmp/crash-anaysis.B3GOl/modules/obdecho.ko ffffffffc1eb4340 lfsck ffffffffc1dfa000 1081344 /tmp/crash-anaysis.B3GOl/modules/lfsck.ko ffffffffc1f83240 lquota ffffffffc1f03000 786432 /tmp/crash-anaysis.B3GOl/modules/lquota.ko ffffffffc202fb80 osd_zfs ffffffffc1fc4000 659456 /tmp/crash-anaysis.B3GOl/modules/osd_zfs.ko ffffffffc20c9400 mgs ffffffffc2066000 626688 /tmp/crash-anaysis.B3GOl/modules/mgs.ko ffffffffc217b080 mdd ffffffffc2100000 745472 /tmp/crash-anaysis.B3GOl/modules/mdd.ko ffffffffc22c5940 mdt ffffffffc21b7000 1654784 /tmp/crash-anaysis.B3GOl/modules/mdt.ko ffffffffc23f7480 lod ffffffffc234c000 1056768 /tmp/crash-anaysis.B3GOl/modules/lod.ko ffffffffc24bee40 ofd ffffffffc244f000 692224 /tmp/crash-anaysis.B3GOl/modules/ofd.ko ffffffffc2554f80 osp ffffffffc24f9000 573440 /tmp/crash-anaysis.B3GOl/modules/osp.ko ffffffffc26ba4c0 lustre ffffffffc2586000 1908736 /tmp/crash-anaysis.B3GOl/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, 0xffff9f67334b3288) 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 143 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, 0xffff9f6718621048) 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 155 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, 0xffff9f6710526ce8) 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 190 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, 0xffff9f6718e07e88) 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 197 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 685 total debug pages from 4 CPUs to /tmp/crash-anaysis.B3GOl/lustre.bin