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.yatEK/vmlinux [TAINTED] DUMPFILE: /exports/testreports/50430/testresults/sanity-dom-zfs-centos7_x86_64-centos7_x86_64/oleg360-client-vmcore [PARTIAL DUMP] CPUS: 4 DATE: Tue Apr 1 13:20:28 EDT 2025 UPTIME: 00:07:04 LOAD AVERAGE: 0.80, 0.44, 0.19 TASKS: 164 NODENAME: oleg360-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: 11132 COMMAND: "directio" TASK: ffff8800a9781110 [THREAD_INFO: ffff880088a5c000] 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 serio_raw 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 pata_acpi module mod: cannot find or load object file for mbcache module mod: cannot find or load object file for crct10dif_pclmul module mod: cannot find or load object file for ata_piix module mod: cannot find or load object file for ata_generic 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 ghash_clmulni_intel 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 glue_helper module mod: cannot find or load object file for iosf_mbi module mod: cannot find or load object file for cryptd module mod: cannot find or load object file for ablk_helper module mod: cannot find or load object file for rpcsec_gss_krb5 module mod: cannot find or load object file for crc_t10dif module mod: cannot find or load object file for crc32_pclmul module mod: cannot find or load object file for irqbypass module mod: cannot find or load object file for gf128mul module mod: cannot find or load object file for lrw module mod: cannot find or load object file for crct10dif_generic module MODULE NAME BASE SIZE OBJECT FILE ffffffffa0184380 ost ffffffffa0181000 19298 /tmp/crash-anaysis.yatEK/modules/ost.ko 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 aesni_intel module ffffffffa01e71a0 fid ffffffffa01d9000 84843 /tmp/crash-anaysis.yatEK/modules/fid.ko mod: cannot find or load object file for edac_core module mod: cannot find or load object file for sb_edac module ffffffffa0225360 libcfs ffffffffa0210000 132619 /tmp/crash-anaysis.yatEK/modules/libcfs.ko ffffffffa02508a0 ksocklnd ffffffffa0232000 182768 /tmp/crash-anaysis.yatEK/modules/ksocklnd.ko mod: cannot find or load object file for squashfs module mod: cannot find or load object file for kvm module ffffffffa03b4020 lnet ffffffffa031e000 958750 /tmp/crash-anaysis.yatEK/modules/lnet.ko ffffffffa0442de0 ptlrpc_gss ffffffffa040a000 342063 /tmp/crash-anaysis.yatEK/modules/ptlrpc_gss.ko ffffffffa046d7e0 fld ffffffffa045f000 88713 /tmp/crash-anaysis.yatEK/modules/fld.ko ffffffffa04a1860 lmv ffffffffa0476000 234767 /tmp/crash-anaysis.yatEK/modules/lmv.ko ffffffffa0509d40 osc ffffffffa04be000 427843 /tmp/crash-anaysis.yatEK/modules/osc.ko mod: cannot find or load object file for kvm_intel module ffffffffa0625580 obdclass ffffffffa0558000 2652163 /tmp/crash-anaysis.yatEK/modules/obdclass.ko ffffffffa0991aa0 ptlrpc ffffffffa07e1000 2543606 /tmp/crash-anaysis.yatEK/modules/ptlrpc.ko ffffffffa0aa4660 lov ffffffffa0a6a000 332217 /tmp/crash-anaysis.yatEK/modules/lov.ko ffffffffa0b028a0 mdc ffffffffa0ad0000 276564 /tmp/crash-anaysis.yatEK/modules/mdc.ko ffffffffa0b27920 mgc ffffffffa0b15000 109376 /tmp/crash-anaysis.yatEK/modules/mgc.ko ffffffffa0b4a120 obdecho ffffffffa0b31000 151561 /tmp/crash-anaysis.yatEK/modules/obdecho.ko ffffffffa0bef240 lfsck ffffffffa0b58000 782830 /tmp/crash-anaysis.yatEK/modules/lfsck.ko ffffffffa0c91280 lquota ffffffffa0c3b000 472402 /tmp/crash-anaysis.yatEK/modules/lquota.ko ffffffffa0cf4120 mgs ffffffffa0cb0000 373732 /tmp/crash-anaysis.yatEK/modules/mgs.ko ffffffffa0d6a000 mdd ffffffffa0d0d000 497881 /tmp/crash-anaysis.yatEK/modules/mdd.ko ffffffffa0e41ce0 mdt ffffffffa0d88000 1023484 /tmp/crash-anaysis.yatEK/modules/mdt.ko ffffffffa0efca60 lod ffffffffa0e83000 660609 /tmp/crash-anaysis.yatEK/modules/lod.ko ffffffffa0f8a6c0 ofd ffffffffa0f48000 361788 /tmp/crash-anaysis.yatEK/modules/ofd.ko ffffffffa0fe02a0 osp ffffffffa0fa2000 350313 /tmp/crash-anaysis.yatEK/modules/osp.ko ffffffffa10c49c0 lustre ffffffffa0ff9000 1105717 /tmp/crash-anaysis.yatEK/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, 0xffff880136bbb508) 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 1655 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, 0xffff8800a7dfa908) 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 2194 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, 0xffff8800a7f522a8) 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 1848 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, 0xffff88012eafecc8) 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 1276 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, 0xffff8800b62a0428) 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 54 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, 0xffff8801399b43a8) 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, 0xffff8800a8a977e8) 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, 0xffff88012abf9928) 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 97 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 7380 total debug pages from 4 CPUs to /tmp/crash-anaysis.yatEK/lustre.bin