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.Q0moc/vmlinux [TAINTED] DUMPFILE: /exports/testreports/50430/testresults/sanity1-ldiskfs-DNE-centos7_x86_64-centos7_x86_64/oleg253-client-vmcore [PARTIAL DUMP] CPUS: 4 DATE: Tue Apr 1 13:39:49 EDT 2025 UPTIME: 00:26:21 LOAD AVERAGE: 1.00, 0.94, 0.54 TASKS: 161 NODENAME: oleg253-client.virtnet RELEASE: 3.10.0-7.9-debug VERSION: #1 SMP Sat Mar 26 23:28:42 EDT 2022 MACHINE: x86_64 (2399 Mhz) MEMORY: 4 GB PANIC: "BUG: unable to handle kernel NULL pointer dereference at 000000000000012e" PID: 17191 COMMAND: "dd" TASK: ffff8800b3b71110 [THREAD_INFO: ffff8800a2df8000] 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 libata module mod: cannot find or load object file for ata_generic module mod: cannot find or load object file for crc32c_intel module mod: cannot find or load object file for pata_acpi module mod: cannot find or load object file for mbcache 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 crct10dif_pclmul module mod: cannot find or load object file for ip_tables module mod: cannot find or load object file for binfmt_misc module mod: cannot find or load object file for crct10dif_common module mod: cannot find or load object file for jbd2 module mod: cannot find or load object file for ext4 module mod: cannot find or load object file for pcspkr module mod: cannot find or load object file for i2c_piix4 module mod: cannot find or load object file for gf128mul module mod: cannot find or load object file for i2c_core module mod: cannot find or load object file for iosf_mbi module mod: cannot find or load object file for ablk_helper module mod: cannot find or load object file for lrw module mod: cannot find or load object file for ghash_clmulni_intel module mod: cannot find or load object file for cryptd module mod: cannot find or load object file for rpcsec_gss_krb5 module mod: cannot find or load object file for crc32_pclmul module mod: cannot find or load object file for glue_helper module mod: cannot find or load object file for aesni_intel module mod: cannot find or load object file for irqbypass module mod: cannot find or load object file for crc_t10dif module mod: cannot find or load object file for kvm module mod: cannot find or load object file for crct10dif_generic module MODULE NAME BASE SIZE OBJECT FILE ffffffffa0277380 ost ffffffffa0274000 19298 /tmp/crash-anaysis.Q0moc/modules/ost.ko mod: cannot find or load object file for squashfs module ffffffffa029a1a0 fid ffffffffa028c000 84843 /tmp/crash-anaysis.Q0moc/modules/fid.ko mod: cannot find or load object file for edac_core module mod: cannot find or load object file for loop module mod: cannot find or load object file for sb_edac module ffffffffa02da360 libcfs ffffffffa02c5000 132619 /tmp/crash-anaysis.Q0moc/modules/libcfs.ko ffffffffa02f57e0 fld ffffffffa02e7000 88713 /tmp/crash-anaysis.Q0moc/modules/fld.ko ffffffffa0397020 lnet ffffffffa0301000 958750 /tmp/crash-anaysis.Q0moc/modules/lnet.ko ffffffffa0413920 mgc ffffffffa0401000 109376 /tmp/crash-anaysis.Q0moc/modules/mgc.ko ffffffffa043d8a0 ksocklnd ffffffffa041f000 182768 /tmp/crash-anaysis.Q0moc/modules/ksocklnd.ko ffffffffa0485de0 ptlrpc_gss ffffffffa044d000 342063 /tmp/crash-anaysis.Q0moc/modules/ptlrpc_gss.ko ffffffffa04cd860 lmv ffffffffa04a2000 234767 /tmp/crash-anaysis.Q0moc/modules/lmv.ko ffffffffa04f6120 obdecho ffffffffa04dd000 151561 /tmp/crash-anaysis.Q0moc/modules/obdecho.ko mod: cannot find or load object file for kvm_intel module ffffffffa0623580 obdclass ffffffffa0556000 2652163 /tmp/crash-anaysis.Q0moc/modules/obdclass.ko ffffffffa098faa0 ptlrpc ffffffffa07df000 2543606 /tmp/crash-anaysis.Q0moc/modules/ptlrpc.ko ffffffffa0a98d40 osc ffffffffa0a4d000 427843 /tmp/crash-anaysis.Q0moc/modules/osc.ko ffffffffa0af1660 lov ffffffffa0ab7000 332217 /tmp/crash-anaysis.Q0moc/modules/lov.ko ffffffffa0b3c8a0 mdc ffffffffa0b0a000 276564 /tmp/crash-anaysis.Q0moc/modules/mdc.ko ffffffffa0be6240 lfsck ffffffffa0b4f000 782830 /tmp/crash-anaysis.Q0moc/modules/lfsck.ko ffffffffa0c88280 lquota ffffffffa0c32000 472402 /tmp/crash-anaysis.Q0moc/modules/lquota.ko ffffffffa0ceb120 mgs ffffffffa0ca7000 373732 /tmp/crash-anaysis.Q0moc/modules/mgs.ko ffffffffa0d61000 mdd ffffffffa0d04000 497881 /tmp/crash-anaysis.Q0moc/modules/mdd.ko ffffffffa0e38ce0 mdt ffffffffa0d7f000 1023484 /tmp/crash-anaysis.Q0moc/modules/mdt.ko ffffffffa0ef3a60 lod ffffffffa0e7a000 660609 /tmp/crash-anaysis.Q0moc/modules/lod.ko ffffffffa0f816c0 ofd ffffffffa0f3f000 361788 /tmp/crash-anaysis.Q0moc/modules/ofd.ko ffffffffa0fd72a0 osp ffffffffa0f99000 350313 /tmp/crash-anaysis.Q0moc/modules/osp.ko ffffffffa10bb9c0 lustre ffffffffa0ff0000 1105717 /tmp/crash-anaysis.Q0moc/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, 0xffff8800a85b8ae8) 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, 0xffff8800b6ec9068) 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, 0xffff8800b3b8b488) 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, 0xffff8800a8bb7908) 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, 0xffff8800a805edc8) 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 128 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, 0xffff8800a8264008) 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 128 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, 0xffff8800a85b8b08) 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 128 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, 0xffff8800a862bd88) 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 128 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 4608 total debug pages from 4 CPUs to /tmp/crash-anaysis.Q0moc/lustre.bin