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.S8kJJ/vmlinux [TAINTED] DUMPFILE: /exports/testreports/50430/testresults/recovery-small-ldiskfs-DNE-centos7_x86_64-centos7_x86_64/oleg203-client-vmcore [PARTIAL DUMP] CPUS: 4 DATE: Tue Apr 1 14:42:04 EDT 2025 UPTIME: 01:28:38 LOAD AVERAGE: 0.15, 2.06, 1.78 TASKS: 153 NODENAME: oleg203-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: 22107 COMMAND: "dd" TASK: ffff8801392e4440 [THREAD_INFO: ffff88012b5bc000] CPU: 2 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 crc32c_intel module mod: cannot find or load object file for pata_acpi module mod: cannot find or load object file for ata_generic module mod: cannot find or load object file for serio_raw module mod: cannot find or load object file for ip_tables 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 mbcache 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 crct10dif_pclmul 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 gf128mul module mod: cannot find or load object file for cryptd module mod: cannot find or load object file for ghash_clmulni_intel module mod: cannot find or load object file for iosf_mbi module mod: cannot find or load object file for squashfs module mod: cannot find or load object file for crc_t10dif module mod: cannot find or load object file for irqbypass module mod: cannot find or load object file for crct10dif_generic module MODULE NAME BASE SIZE OBJECT FILE ffffffffa0172380 ost ffffffffa016f000 19298 /tmp/crash-anaysis.S8kJJ/modules/ost.ko mod: cannot find or load object file for lrw module mod: cannot find or load object file for i2c_core module mod: cannot find or load object file for crc32_pclmul module mod: cannot find or load object file for rpcsec_gss_krb5 module mod: cannot find or load object file for glue_helper module mod: cannot find or load object file for ablk_helper module mod: cannot find or load object file for i2c_piix4 module mod: cannot find or load object file for aesni_intel module mod: cannot find or load object file for kvm module mod: cannot find or load object file for sb_edac module mod: cannot find or load object file for edac_core module ffffffffa02cf360 libcfs ffffffffa02ba000 132619 /tmp/crash-anaysis.S8kJJ/modules/libcfs.ko ffffffffa037d020 lnet ffffffffa02e7000 958750 /tmp/crash-anaysis.S8kJJ/modules/lnet.ko ffffffffa03f67e0 fld ffffffffa03e8000 88713 /tmp/crash-anaysis.S8kJJ/modules/fld.ko ffffffffa04238a0 ksocklnd ffffffffa0405000 182768 /tmp/crash-anaysis.S8kJJ/modules/ksocklnd.ko ffffffffa046bde0 ptlrpc_gss ffffffffa0433000 342063 /tmp/crash-anaysis.S8kJJ/modules/ptlrpc_gss.ko ffffffffa04961a0 fid ffffffffa0488000 84843 /tmp/crash-anaysis.S8kJJ/modules/fid.ko ffffffffa04c9860 lmv ffffffffa049e000 234767 /tmp/crash-anaysis.S8kJJ/modules/lmv.ko ffffffffa04ff920 mgc ffffffffa04ed000 109376 /tmp/crash-anaysis.S8kJJ/modules/mgc.ko mod: cannot find or load object file for kvm_intel module ffffffffa0614580 obdclass ffffffffa0547000 2652163 /tmp/crash-anaysis.S8kJJ/modules/obdclass.ko ffffffffa0980aa0 ptlrpc ffffffffa07d0000 2543606 /tmp/crash-anaysis.S8kJJ/modules/ptlrpc.ko ffffffffa0a89d40 osc ffffffffa0a3e000 427843 /tmp/crash-anaysis.S8kJJ/modules/osc.ko ffffffffa0ae2660 lov ffffffffa0aa8000 332217 /tmp/crash-anaysis.S8kJJ/modules/lov.ko ffffffffa0b2d8a0 mdc ffffffffa0afb000 276564 /tmp/crash-anaysis.S8kJJ/modules/mdc.ko ffffffffa0b59120 obdecho ffffffffa0b40000 151561 /tmp/crash-anaysis.S8kJJ/modules/obdecho.ko ffffffffa0bfe240 lfsck ffffffffa0b67000 782830 /tmp/crash-anaysis.S8kJJ/modules/lfsck.ko ffffffffa0ca0280 lquota ffffffffa0c4a000 472402 /tmp/crash-anaysis.S8kJJ/modules/lquota.ko ffffffffa0d1d120 mgs ffffffffa0cd9000 373732 /tmp/crash-anaysis.S8kJJ/modules/mgs.ko ffffffffa0d93000 mdd ffffffffa0d36000 497881 /tmp/crash-anaysis.S8kJJ/modules/mdd.ko ffffffffa0e84ce0 mdt ffffffffa0dcb000 1023484 /tmp/crash-anaysis.S8kJJ/modules/mdt.ko ffffffffa0f3fa60 lod ffffffffa0ec6000 660609 /tmp/crash-anaysis.S8kJJ/modules/lod.ko ffffffffa0fcd6c0 ofd ffffffffa0f8b000 361788 /tmp/crash-anaysis.S8kJJ/modules/ofd.ko ffffffffa10232a0 osp ffffffffa0fe5000 350313 /tmp/crash-anaysis.S8kJJ/modules/osp.ko ffffffffa11079c0 lustre ffffffffa103c000 1105717 /tmp/crash-anaysis.S8kJJ/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, 0xffff88012f846d88) 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, 0xffff8800af489c28) 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, 0xffff8800a96dfc28) 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, 0xffff8800b63bb8c8) 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, 0xffff88012fcd2508) 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, 0xffff88009b41c948) 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, 0xffff88012e1a95a8) 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 23 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, 0xffff8800a9489828) 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 18 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 4393 total debug pages from 4 CPUs to /tmp/crash-anaysis.S8kJJ/lustre.bin