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.nFRPj/vmlinux [TAINTED] DUMPFILE: /exports/testreports/68569/testresults/sanity-lfsck-ldiskfs-DNE-rocky8.10_x86_64-rocky8.10_x86_64-retry1/oleg616-server-vmcore [PARTIAL DUMP] CPUS: 4 DATE: Mon Aug 24 02:45:58 EDT 2026 UPTIME: 01:31:54 LOAD AVERAGE: 1.72, 1.55, 1.55 TASKS: 262 NODENAME: oleg616-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 0000000000000000" PID: 162769 COMMAND: "lfsck" TASK: ffff99dac458a7c0 [THREAD_INFO: ffff99dac458a7c0] 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_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 ghash_clmulni_intel module mod: cannot find or load object file for crc32_pclmul module mod: cannot find or load object file for i2c_piix4 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 intel_rapl_msr module mod: cannot find or load object file for ata_piix 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 ata_generic 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 rapl module mod: cannot find or load object file for sb_edac 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 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 ffffffffc077fc80 fld ffffffffc076d000 126976 /tmp/crash-anaysis.nFRPj/modules/fld.ko ffffffffc07f5740 libcfs ffffffffc07d5000 225280 /tmp/crash-anaysis.nFRPj/modules/libcfs.ko ffffffffc08e83c0 lnet ffffffffc080d000 1490944 /tmp/crash-anaysis.nFRPj/modules/lnet.ko ffffffffc09a3900 ksocklnd ffffffffc097a000 270336 /tmp/crash-anaysis.nFRPj/modules/ksocklnd.ko ffffffffc0afefc0 obdclass ffffffffc09bd000 4374528 /tmp/crash-anaysis.nFRPj/modules/obdclass.ko ffffffffc1076000 ptlrpc ffffffffc0dea000 4173824 /tmp/crash-anaysis.nFRPj/modules/ptlrpc.ko ffffffffc1234880 ptlrpc_gss ffffffffc11e6000 524288 /tmp/crash-anaysis.nFRPj/modules/ptlrpc_gss.ko ffffffffc1279ac0 fid ffffffffc1267000 126976 /tmp/crash-anaysis.nFRPj/modules/fid.ko ffffffffc1299740 ec ffffffffc1287000 81920 /tmp/crash-anaysis.nFRPj/modules/ec.ko ffffffffc12d9000 lmv ffffffffc129c000 372736 /tmp/crash-anaysis.nFRPj/modules/lmv.ko ffffffffc136dd40 osc ffffffffc12f8000 716800 /tmp/crash-anaysis.nFRPj/modules/osc.ko ffffffffc13ff780 lov ffffffffc13a8000 548864 /tmp/crash-anaysis.nFRPj/modules/lov.ko ffffffffc1479b80 mdc ffffffffc142f000 466944 /tmp/crash-anaysis.nFRPj/modules/mdc.ko ffffffffc14be000 mgc ffffffffc14a2000 184320 /tmp/crash-anaysis.nFRPj/modules/mgc.ko ffffffffc14f15c0 obdecho ffffffffc14d0000 225280 /tmp/crash-anaysis.nFRPj/modules/obdecho.ko ffffffffc15c20c0 lfsck ffffffffc1508000 1077248 /tmp/crash-anaysis.nFRPj/modules/lfsck.ko ffffffffc1690240 lquota ffffffffc1610000 786432 /tmp/crash-anaysis.nFRPj/modules/lquota.ko ffffffffc17dd280 ldiskfs ffffffffc16d1000 1679360 /tmp/crash-anaysis.nFRPj/modules/ldiskfs.ko ffffffffc190dc00 osd_ldiskfs ffffffffc186c000 995328 /tmp/crash-anaysis.nFRPj/modules/osd_ldiskfs.ko ffffffffc19c3400 mgs ffffffffc1960000 626688 /tmp/crash-anaysis.nFRPj/modules/mgs.ko ffffffffc1a75080 mdd ffffffffc19fa000 745472 /tmp/crash-anaysis.nFRPj/modules/mdd.ko ffffffffc1bbf840 mdt ffffffffc1ab1000 1654784 /tmp/crash-anaysis.nFRPj/modules/mdt.ko ffffffffc1cf0240 lod ffffffffc1c46000 1048576 /tmp/crash-anaysis.nFRPj/modules/lod.ko ffffffffc1da9800 ofd ffffffffc1d47000 610304 /tmp/crash-anaysis.nFRPj/modules/ofd.ko ffffffffc1e38f80 osp ffffffffc1ddd000 573440 /tmp/crash-anaysis.nFRPj/modules/osp.ko ffffffffc1f9d340 lustre ffffffffc1e6a000 1904640 /tmp/crash-anaysis.nFRPj/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, 0xffff99dbd946be68) 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 1546 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, 0xffff99dbc55d2608) 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 1699 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, 0xffff99dbd946ac08) 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 1868 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, 0xffff99dbd03dff48) 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 1852 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, 0xffff99dacc58e768) 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 1 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, 0xffff99dbe515a968) 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 2 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, 0xffff99dbd1665a28) 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 2 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, 0xffff99dbc4a144e8) 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 2 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_trace_pages(2, 5, 0xffff99dbf8b1e6c8) 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 1 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_trace_pages(3, 5, 0xffff99dac5441128) 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 1 debug pages from type 2 - CPU 3 lustre: Dumped 6974 total debug pages from 4 CPUs to /tmp/crash-anaysis.nFRPj/lustre.bin