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.7Oj18/vmlinux [TAINTED] DUMPFILE: /exports/testreports/68896/testresults/sanity-compr-special10-zfs-rocky8.10_x86_64-rocky8.10_x86_64/oleg634-server-vmcore [PARTIAL DUMP] CPUS: 4 DATE: Wed Aug 26 11:59:42 EDT 2026 UPTIME: 00:05:17 LOAD AVERAGE: 1.37, 1.34, 0.65 TASKS: 351 NODENAME: oleg634-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: 6678 COMMAND: "ll_ost_io00_000" TASK: ffff88dea9820000 [THREAD_INFO: ffff88dea9820000] CPU: 0 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 ghash_clmulni_intel module mod: cannot find or load object file for crc32_pclmul module mod: cannot find or load object file for crct10dif_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 serio_raw module mod: cannot find or load object file for pcspkr 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 dns_resolver module mod: cannot find or load object file for crc32c_intel 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 rpcsec_gss_krb5 module mod: cannot find or load object file for rapl 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 ffffffffc04dd740 libcfs ffffffffc04bd000 225280 /tmp/crash-anaysis.7Oj18/modules/libcfs.ko mod: cannot find or load object file for spl module mod: cannot find or load object file for zfs module ffffffffc0eff3c0 lnet ffffffffc0e24000 1490944 /tmp/crash-anaysis.7Oj18/modules/lnet.ko ffffffffc0fba900 ksocklnd ffffffffc0f91000 270336 /tmp/crash-anaysis.7Oj18/modules/ksocklnd.ko ffffffffc111b0c0 obdclass ffffffffc0fd4000 4415488 /tmp/crash-anaysis.7Oj18/modules/obdclass.ko ffffffffc16970c0 ptlrpc ffffffffc140b000 4173824 /tmp/crash-anaysis.7Oj18/modules/ptlrpc.ko ffffffffc1855880 ptlrpc_gss ffffffffc1807000 524288 /tmp/crash-anaysis.7Oj18/modules/ptlrpc_gss.ko ffffffffc189ac80 fld ffffffffc1888000 126976 /tmp/crash-anaysis.7Oj18/modules/fld.ko ffffffffc18baac0 fid ffffffffc18a8000 126976 /tmp/crash-anaysis.7Oj18/modules/fid.ko ffffffffc18da740 ec ffffffffc18c8000 81920 /tmp/crash-anaysis.7Oj18/modules/ec.ko ffffffffc191a080 lmv ffffffffc18dd000 372736 /tmp/crash-anaysis.7Oj18/modules/lmv.ko ffffffffc19bb380 osc ffffffffc1939000 790528 /tmp/crash-anaysis.7Oj18/modules/osc.ko ffffffffc1a53a00 lov ffffffffc19fb000 552960 /tmp/crash-anaysis.7Oj18/modules/lov.ko ffffffffc1acdb80 mdc ffffffffc1a83000 466944 /tmp/crash-anaysis.7Oj18/modules/mdc.ko ffffffffc1b12000 mgc ffffffffc1af6000 184320 /tmp/crash-anaysis.7Oj18/modules/mgc.ko ffffffffc1b455c0 obdecho ffffffffc1b24000 225280 /tmp/crash-anaysis.7Oj18/modules/obdecho.ko ffffffffc1c16340 lfsck ffffffffc1b5c000 1081344 /tmp/crash-anaysis.7Oj18/modules/lfsck.ko ffffffffc1ce5240 lquota ffffffffc1c65000 786432 /tmp/crash-anaysis.7Oj18/modules/lquota.ko ffffffffc1d91b80 osd_zfs ffffffffc1d26000 659456 /tmp/crash-anaysis.7Oj18/modules/osd_zfs.ko ffffffffc1e2b400 mgs ffffffffc1dc8000 626688 /tmp/crash-anaysis.7Oj18/modules/mgs.ko ffffffffc1edd080 mdd ffffffffc1e62000 745472 /tmp/crash-anaysis.7Oj18/modules/mdd.ko ffffffffc2027900 mdt ffffffffc1f19000 1654784 /tmp/crash-anaysis.7Oj18/modules/mdt.ko ffffffffc2159540 lod ffffffffc20ae000 1056768 /tmp/crash-anaysis.7Oj18/modules/lod.ko ffffffffc221fe40 ofd ffffffffc21b1000 688128 /tmp/crash-anaysis.7Oj18/modules/ofd.ko ffffffffc22b5f80 osp ffffffffc225a000 573440 /tmp/crash-anaysis.7Oj18/modules/osp.ko ffffffffc241b4c0 lustre ffffffffc22e7000 1908736 /tmp/crash-anaysis.7Oj18/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, 0xffff88de86335888) 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 134 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, 0xffff88de8795a748) 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 117 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, 0xffff88de8835dac8) 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 116 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, 0xffff88de8552c208) 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 107 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 474 total debug pages from 4 CPUs to /tmp/crash-anaysis.7Oj18/lustre.bin