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.fqYxY/vmlinux [TAINTED] DUMPFILE: /exports/testreports/68247/testresults/conf-sanity-slow-ldiskfs-DNE-rocky8.10_x86_64-rocky8.10_x86_64/oleg205-server-vmcore [PARTIAL DUMP] CPUS: 4 DATE: Wed Aug 19 22:08:04 EDT 2026 UPTIME: 00:24:36 LOAD AVERAGE: 1.15, 1.47, 1.21 TASKS: 259 NODENAME: oleg205-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: 29568 COMMAND: "ll_ost00_007" TASK: ffff9304431f27c0 [THREAD_INFO: ffff9304431f27c0] 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_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 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 pcspkr 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 dns_resolver module mod: cannot find or load object file for ghash_clmulni_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 ata_piix module mod: cannot find or load object file for intel_rapl_common module mod: cannot find or load object file for rapl 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 mod: cannot find or load object file for dm_flakey module MODULE NAME BASE SIZE OBJECT FILE ffffffffc05a4c80 fld ffffffffc0592000 126976 /tmp/crash-anaysis.fqYxY/modules/fld.ko ffffffffc061a740 libcfs ffffffffc05fa000 225280 /tmp/crash-anaysis.fqYxY/modules/libcfs.ko ffffffffc070d3c0 lnet ffffffffc0632000 1490944 /tmp/crash-anaysis.fqYxY/modules/lnet.ko ffffffffc07c8900 ksocklnd ffffffffc079f000 270336 /tmp/crash-anaysis.fqYxY/modules/ksocklnd.ko ffffffffc0923fc0 obdclass ffffffffc07e2000 4374528 /tmp/crash-anaysis.fqYxY/modules/obdclass.ko ffffffffc0e9c080 ptlrpc ffffffffc0c0f000 4182016 /tmp/crash-anaysis.fqYxY/modules/ptlrpc.ko ffffffffc105b880 ptlrpc_gss ffffffffc100d000 524288 /tmp/crash-anaysis.fqYxY/modules/ptlrpc_gss.ko ffffffffc10a0ac0 fid ffffffffc108e000 126976 /tmp/crash-anaysis.fqYxY/modules/fid.ko ffffffffc10c0740 ec ffffffffc10ae000 81920 /tmp/crash-anaysis.fqYxY/modules/ec.ko ffffffffc1100080 lmv ffffffffc10c3000 372736 /tmp/crash-anaysis.fqYxY/modules/lmv.ko ffffffffc1196e00 osc ffffffffc111f000 729088 /tmp/crash-anaysis.fqYxY/modules/osc.ko ffffffffc1229780 lov ffffffffc11d2000 548864 /tmp/crash-anaysis.fqYxY/modules/lov.ko ffffffffc12a3b80 mdc ffffffffc1259000 466944 /tmp/crash-anaysis.fqYxY/modules/mdc.ko ffffffffc12e8000 mgc ffffffffc12cc000 184320 /tmp/crash-anaysis.fqYxY/modules/mgc.ko ffffffffc131b5c0 obdecho ffffffffc12fa000 225280 /tmp/crash-anaysis.fqYxY/modules/obdecho.ko ffffffffc13ec0c0 lfsck ffffffffc1332000 1077248 /tmp/crash-anaysis.fqYxY/modules/lfsck.ko ffffffffc14ba200 lquota ffffffffc143a000 786432 /tmp/crash-anaysis.fqYxY/modules/lquota.ko ffffffffc1607280 ldiskfs ffffffffc14fb000 1679360 /tmp/crash-anaysis.fqYxY/modules/ldiskfs.ko ffffffffc1737c00 osd_ldiskfs ffffffffc1696000 995328 /tmp/crash-anaysis.fqYxY/modules/osd_ldiskfs.ko ffffffffc17ed400 mgs ffffffffc178a000 626688 /tmp/crash-anaysis.fqYxY/modules/mgs.ko ffffffffc189f080 mdd ffffffffc1824000 745472 /tmp/crash-anaysis.fqYxY/modules/mdd.ko ffffffffc19e9880 mdt ffffffffc18db000 1654784 /tmp/crash-anaysis.fqYxY/modules/mdt.ko ffffffffc1b1a240 lod ffffffffc1a70000 1048576 /tmp/crash-anaysis.fqYxY/modules/lod.ko ffffffffc1bd3800 ofd ffffffffc1b71000 610304 /tmp/crash-anaysis.fqYxY/modules/ofd.ko ffffffffc1c62f80 osp ffffffffc1c07000 573440 /tmp/crash-anaysis.fqYxY/modules/osp.ko ffffffffc1dc7340 lustre ffffffffc1c94000 1904640 /tmp/crash-anaysis.fqYxY/modules/lustre.ko mod: cannot find or load object file for spl module mod: cannot find or load object file for zfs module 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, 0xffff930559887268) 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 1024 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, 0xffff930559933568) 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 1024 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, 0xffff9304424063c8) 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, 0xffff93054721e7e8) 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 1024 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_trace_pages(0, 5, 0xffff93057642b648) 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 38 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_trace_pages(1, 5, 0xffff930579ccdac8) 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 35 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_trace_pages(2, 5, 0xffff9304424062c8) 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 32 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_trace_pages(3, 5, 0xffff930441134548) 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 31 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 4232 total debug pages from 4 CPUs to /tmp/crash-anaysis.fqYxY/lustre.bin