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.JRqaQ/vmlinux [TAINTED] DUMPFILE: /exports/testreports/68904/testresults/sanity-special7-zfs-DNE-rocky8.10_x86_64-rocky8.10_x86_64/oleg638-server-vmcore [PARTIAL DUMP] CPUS: 4 DATE: Wed Aug 26 11:46:27 EDT 2026 UPTIME: 00:06:08 LOAD AVERAGE: 1.21, 1.22, 0.59 TASKS: 403 NODENAME: oleg638-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 0000000000000060" PID: 10619 COMMAND: "ll_ost00_004" TASK: ffff9318865427c0 [THREAD_INFO: ffff9318865427c0] 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_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 ata_generic 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 serio_raw module mod: cannot find or load object file for ata_piix 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 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 rpcsec_gss_krb5 module mod: cannot find or load object file for intel_rapl_common module MODULE NAME BASE SIZE OBJECT FILE ffffffffc04f5c80 fld ffffffffc04e3000 126976 /tmp/crash-anaysis.JRqaQ/modules/fld.ko mod: cannot find or load object file for rapl 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 spl module mod: cannot find or load object file for zfs module ffffffffc1033740 libcfs ffffffffc1013000 225280 /tmp/crash-anaysis.JRqaQ/modules/libcfs.ko ffffffffc11263c0 lnet ffffffffc104b000 1490944 /tmp/crash-anaysis.JRqaQ/modules/lnet.ko ffffffffc11e1900 ksocklnd ffffffffc11b8000 270336 /tmp/crash-anaysis.JRqaQ/modules/ksocklnd.ko ffffffffc1341fc0 obdclass ffffffffc11fb000 4415488 /tmp/crash-anaysis.JRqaQ/modules/obdclass.ko ffffffffc18be0c0 ptlrpc ffffffffc1632000 4173824 /tmp/crash-anaysis.JRqaQ/modules/ptlrpc.ko ffffffffc1a7c880 ptlrpc_gss ffffffffc1a2e000 524288 /tmp/crash-anaysis.JRqaQ/modules/ptlrpc_gss.ko ffffffffc1ac1ac0 fid ffffffffc1aaf000 126976 /tmp/crash-anaysis.JRqaQ/modules/fid.ko ffffffffc1ae1740 ec ffffffffc1acf000 81920 /tmp/crash-anaysis.JRqaQ/modules/ec.ko ffffffffc1b21080 lmv ffffffffc1ae4000 372736 /tmp/crash-anaysis.JRqaQ/modules/lmv.ko ffffffffc1bc2300 osc ffffffffc1b40000 790528 /tmp/crash-anaysis.JRqaQ/modules/osc.ko ffffffffc1c5a9c0 lov ffffffffc1c02000 552960 /tmp/crash-anaysis.JRqaQ/modules/lov.ko ffffffffc1cd4b80 mdc ffffffffc1c8a000 466944 /tmp/crash-anaysis.JRqaQ/modules/mdc.ko ffffffffc1d19000 mgc ffffffffc1cfd000 184320 /tmp/crash-anaysis.JRqaQ/modules/mgc.ko ffffffffc1d4c5c0 obdecho ffffffffc1d2b000 225280 /tmp/crash-anaysis.JRqaQ/modules/obdecho.ko ffffffffc1e1d340 lfsck ffffffffc1d63000 1081344 /tmp/crash-anaysis.JRqaQ/modules/lfsck.ko ffffffffc1eec240 lquota ffffffffc1e6c000 786432 /tmp/crash-anaysis.JRqaQ/modules/lquota.ko ffffffffc1f98b80 osd_zfs ffffffffc1f2d000 659456 /tmp/crash-anaysis.JRqaQ/modules/osd_zfs.ko ffffffffc2032400 mgs ffffffffc1fcf000 626688 /tmp/crash-anaysis.JRqaQ/modules/mgs.ko ffffffffc20e4080 mdd ffffffffc2069000 745472 /tmp/crash-anaysis.JRqaQ/modules/mdd.ko ffffffffc222e940 mdt ffffffffc2120000 1654784 /tmp/crash-anaysis.JRqaQ/modules/mdt.ko ffffffffc2360480 lod ffffffffc22b5000 1056768 /tmp/crash-anaysis.JRqaQ/modules/lod.ko ffffffffc2427e40 ofd ffffffffc23b8000 692224 /tmp/crash-anaysis.JRqaQ/modules/ofd.ko ffffffffc24bdf80 osp ffffffffc2462000 573440 /tmp/crash-anaysis.JRqaQ/modules/osp.ko ffffffffc26234c0 lustre ffffffffc24ef000 1908736 /tmp/crash-anaysis.JRqaQ/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, 0xffff93198c2c3b68) 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 216 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, 0xffff9319a7d40bc8) 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 192 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, 0xffff93198c336508) 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 220 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, 0xffff93198aa0c328) 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 221 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 849 total debug pages from 4 CPUs to /tmp/crash-anaysis.JRqaQ/lustre.bin