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.WBA0L/vmlinux [TAINTED] DUMPFILE: /exports/testreports/68866/testresults/sanity-pfl-special1-zfs-rocky8.10_x86_64-rocky8.10_x86_64/oleg103-server-vmcore [PARTIAL DUMP] CPUS: 4 DATE: Wed Aug 26 06:32:28 EDT 2026 UPTIME: 00:06:47 LOAD AVERAGE: 1.36, 1.35, 0.71 TASKS: 348 NODENAME: oleg103-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: 6696 COMMAND: "ll_ost_io00_000" TASK: ffff9d7202f34f80 [THREAD_INFO: ffff9d7202f34f80] 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 crc32c_intel 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 intel_rapl_msr module mod: cannot find or load object file for pcspkr module mod: cannot find or load object file for serio_raw module mod: cannot find or load object file for rapl module mod: cannot find or load object file for ghash_clmulni_intel 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 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 intel_rapl_common module mod: cannot find or load object file for sb_edac 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 ffffffffc0781740 libcfs ffffffffc0761000 225280 /tmp/crash-anaysis.WBA0L/modules/libcfs.ko mod: cannot find or load object file for spl module mod: cannot find or load object file for zfs module ffffffffc11a33c0 lnet ffffffffc10c8000 1490944 /tmp/crash-anaysis.WBA0L/modules/lnet.ko ffffffffc125e900 ksocklnd ffffffffc1235000 270336 /tmp/crash-anaysis.WBA0L/modules/ksocklnd.ko ffffffffc13bda80 obdclass ffffffffc1278000 4403200 /tmp/crash-anaysis.WBA0L/modules/obdclass.ko ffffffffc19380c0 ptlrpc ffffffffc16ac000 4173824 /tmp/crash-anaysis.WBA0L/modules/ptlrpc.ko ffffffffc1af6880 ptlrpc_gss ffffffffc1aa8000 524288 /tmp/crash-anaysis.WBA0L/modules/ptlrpc_gss.ko ffffffffc1b3bc80 fld ffffffffc1b29000 126976 /tmp/crash-anaysis.WBA0L/modules/fld.ko ffffffffc1b5bac0 fid ffffffffc1b49000 126976 /tmp/crash-anaysis.WBA0L/modules/fid.ko ffffffffc1b7b740 ec ffffffffc1b69000 81920 /tmp/crash-anaysis.WBA0L/modules/ec.ko ffffffffc1bbb080 lmv ffffffffc1b7e000 372736 /tmp/crash-anaysis.WBA0L/modules/lmv.ko ffffffffc1c5c2c0 osc ffffffffc1bda000 790528 /tmp/crash-anaysis.WBA0L/modules/osc.ko ffffffffc1cf4a00 lov ffffffffc1c9c000 552960 /tmp/crash-anaysis.WBA0L/modules/lov.ko ffffffffc1d6eb80 mdc ffffffffc1d24000 466944 /tmp/crash-anaysis.WBA0L/modules/mdc.ko ffffffffc1db3000 mgc ffffffffc1d97000 184320 /tmp/crash-anaysis.WBA0L/modules/mgc.ko ffffffffc1de65c0 obdecho ffffffffc1dc5000 225280 /tmp/crash-anaysis.WBA0L/modules/obdecho.ko ffffffffc1eb7340 lfsck ffffffffc1dfd000 1081344 /tmp/crash-anaysis.WBA0L/modules/lfsck.ko ffffffffc1f86240 lquota ffffffffc1f06000 786432 /tmp/crash-anaysis.WBA0L/modules/lquota.ko ffffffffc2031ac0 osd_zfs ffffffffc1fc7000 655360 /tmp/crash-anaysis.WBA0L/modules/osd_zfs.ko ffffffffc20cb400 mgs ffffffffc2068000 626688 /tmp/crash-anaysis.WBA0L/modules/mgs.ko ffffffffc217d080 mdd ffffffffc2102000 745472 /tmp/crash-anaysis.WBA0L/modules/mdd.ko ffffffffc22c7940 mdt ffffffffc21b9000 1654784 /tmp/crash-anaysis.WBA0L/modules/mdt.ko ffffffffc23f9480 lod ffffffffc234e000 1052672 /tmp/crash-anaysis.WBA0L/modules/lod.ko ffffffffc24bda40 ofd ffffffffc2450000 679936 /tmp/crash-anaysis.WBA0L/modules/ofd.ko ffffffffc2552f80 osp ffffffffc24f7000 573440 /tmp/crash-anaysis.WBA0L/modules/osp.ko ffffffffc26b86c0 lustre ffffffffc2584000 1912832 /tmp/crash-anaysis.WBA0L/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, 0xffff9d722d425908) 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 917 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, 0xffff9d71020e2fa8) 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 922 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, 0xffff9d720872baa8) 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, 0xffff9d722d683e68) 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 873 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 3736 total debug pages from 4 CPUs to /tmp/crash-anaysis.WBA0L/lustre.bin