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.OUMSa/vmlinux [TAINTED] DUMPFILE: /exports/testreports/50430/testresults/sanity1-zfs-centos7_x86_64-centos7_x86_64/oleg411-client-vmcore [PARTIAL DUMP] CPUS: 4 DATE: Tue Apr 1 13:33:30 EDT 2025 UPTIME: 00:20:03 LOAD AVERAGE: 1.11, 0.73, 0.45 TASKS: 162 NODENAME: oleg411-client.virtnet RELEASE: 3.10.0-7.9-debug VERSION: #1 SMP Sat Mar 26 23:28:42 EDT 2022 MACHINE: x86_64 (2400 Mhz) MEMORY: 4 GB PANIC: "BUG: unable to handle kernel NULL pointer dereference at 000000000000012e" PID: 29048 COMMAND: "dd" TASK: ffff8801372e1110 [THREAD_INFO: ffff8800a7820000] 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 crct10dif_common 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 mbcache 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 crc32c_intel module mod: cannot find or load object file for crct10dif_pclmul module mod: cannot find or load object file for binfmt_misc module mod: cannot find or load object file for crc32_pclmul 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 ata_piix 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 i2c_core module mod: cannot find or load object file for i2c_piix4 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 crct10dif_generic 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 irqbypass module mod: cannot find or load object file for crc_t10dif module mod: cannot find or load object file for iosf_mbi module mod: cannot find or load object file for gf128mul module mod: cannot find or load object file for squashfs module mod: cannot find or load object file for edac_core module MODULE NAME BASE SIZE OBJECT FILE ffffffffa01cd1a0 fid ffffffffa01bf000 84843 /tmp/crash-anaysis.OUMSa/modules/fid.ko mod: cannot find or load object file for sb_edac module mod: cannot find or load object file for aesni_intel module mod: cannot find or load object file for kvm module ffffffffa02b3380 ost ffffffffa02b0000 19298 /tmp/crash-anaysis.OUMSa/modules/ost.ko mod: cannot find or load object file for loop module ffffffffa02d5360 libcfs ffffffffa02c0000 132619 /tmp/crash-anaysis.OUMSa/modules/libcfs.ko ffffffffa038d020 lnet ffffffffa02f7000 958750 /tmp/crash-anaysis.OUMSa/modules/lnet.ko ffffffffa03f17e0 fld ffffffffa03e3000 88713 /tmp/crash-anaysis.OUMSa/modules/fld.ko ffffffffa04338a0 ksocklnd ffffffffa0415000 182768 /tmp/crash-anaysis.OUMSa/modules/ksocklnd.ko ffffffffa047bde0 ptlrpc_gss ffffffffa0443000 342063 /tmp/crash-anaysis.OUMSa/modules/ptlrpc_gss.ko ffffffffa04c3860 lmv ffffffffa0498000 234767 /tmp/crash-anaysis.OUMSa/modules/lmv.ko ffffffffa05058a0 mdc ffffffffa04d3000 276564 /tmp/crash-anaysis.OUMSa/modules/mdc.ko mod: cannot find or load object file for kvm_intel module ffffffffa0617580 obdclass ffffffffa054a000 2652163 /tmp/crash-anaysis.OUMSa/modules/obdclass.ko ffffffffa0983aa0 ptlrpc ffffffffa07d3000 2543606 /tmp/crash-anaysis.OUMSa/modules/ptlrpc.ko ffffffffa0a8cd40 osc ffffffffa0a41000 427843 /tmp/crash-anaysis.OUMSa/modules/osc.ko ffffffffa0ae5660 lov ffffffffa0aab000 332217 /tmp/crash-anaysis.OUMSa/modules/lov.ko ffffffffa0b10920 mgc ffffffffa0afe000 109376 /tmp/crash-anaysis.OUMSa/modules/mgc.ko ffffffffa0b33120 obdecho ffffffffa0b1a000 151561 /tmp/crash-anaysis.OUMSa/modules/obdecho.ko ffffffffa0bd8240 lfsck ffffffffa0b41000 782830 /tmp/crash-anaysis.OUMSa/modules/lfsck.ko ffffffffa0c7a280 lquota ffffffffa0c24000 472402 /tmp/crash-anaysis.OUMSa/modules/lquota.ko ffffffffa0cdd120 mgs ffffffffa0c99000 373732 /tmp/crash-anaysis.OUMSa/modules/mgs.ko ffffffffa0d53000 mdd ffffffffa0cf6000 497881 /tmp/crash-anaysis.OUMSa/modules/mdd.ko ffffffffa0e2ace0 mdt ffffffffa0d71000 1023484 /tmp/crash-anaysis.OUMSa/modules/mdt.ko ffffffffa0ee5a60 lod ffffffffa0e6c000 660609 /tmp/crash-anaysis.OUMSa/modules/lod.ko ffffffffa0f736c0 ofd ffffffffa0f31000 361788 /tmp/crash-anaysis.OUMSa/modules/ofd.ko ffffffffa0fc92a0 osp ffffffffa0f8b000 350313 /tmp/crash-anaysis.OUMSa/modules/osp.ko ffffffffa10ad9c0 lustre ffffffffa0fe2000 1105717 /tmp/crash-anaysis.OUMSa/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, 0xffff8800aa9a2c68) 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, 0xffff880135666048) 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, 0xffff8800aaa07a88) 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, 0xffff8800a9eea3a8) 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, 0xffff8800a8f1f568) 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, 0xffff8800a8dc1b68) 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, 0xffff8800a8d48728) 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, 0xffff8800a8ec04a8) 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.OUMSa/lustre.bin