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.G904s/vmlinux [TAINTED] DUMPFILE: /exports/testreports/68845/testresults/sanity-compr-special9-zfs-rocky8.10_x86_64-rocky8.10_x86_64/oleg614-server-vmcore [PARTIAL DUMP] CPUS: 4 DATE: Wed Aug 26 07:52:51 EDT 2026 UPTIME: 00:05:26 LOAD AVERAGE: 1.38, 1.27, 0.61 TASKS: 350 NODENAME: oleg614-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 000000000000002e" PID: 6715 COMMAND: "ll_ost_io00_002" TASK: ffff8dbe580da7c0 [THREAD_INFO: ffff8dbe580da7c0] 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_region_hash module mod: cannot find or load object file for dm_log module mod: cannot find or load object file for dm_mirror 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 ata_generic module mod: cannot find or load object file for i2c_piix4 module mod: cannot find or load object file for rapl module mod: cannot find or load object file for serio_raw 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 intel_rapl_common 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 squashfs module mod: cannot find or load object file for intel_rapl_msr module mod: cannot find or load object file for dns_resolver module mod: cannot find or load object file for rpcsec_gss_krb5 module mod: cannot find or load object file for sb_edac module mod: cannot find or load object file for nfsv4 module mod: cannot find or load object file for auth_rpcgss module MODULE NAME BASE SIZE OBJECT FILE ffffffffc0773740 libcfs ffffffffc0753000 225280 /tmp/crash-anaysis.G904s/modules/libcfs.ko mod: cannot find or load object file for spl module mod: cannot find or load object file for zfs module ffffffffc11953c0 lnet ffffffffc10ba000 1490944 /tmp/crash-anaysis.G904s/modules/lnet.ko ffffffffc1250900 ksocklnd ffffffffc1227000 270336 /tmp/crash-anaysis.G904s/modules/ksocklnd.ko ffffffffc13ae800 obdclass ffffffffc126a000 4395008 /tmp/crash-anaysis.G904s/modules/obdclass.ko ffffffffc1929240 ptlrpc ffffffffc169c000 4186112 /tmp/crash-anaysis.G904s/modules/ptlrpc.ko ffffffffc1ae9880 ptlrpc_gss ffffffffc1a9b000 524288 /tmp/crash-anaysis.G904s/modules/ptlrpc_gss.ko ffffffffc1b2ec80 fld ffffffffc1b1c000 126976 /tmp/crash-anaysis.G904s/modules/fld.ko ffffffffc1b4eac0 fid ffffffffc1b3c000 126976 /tmp/crash-anaysis.G904s/modules/fid.ko ffffffffc1b6e740 ec ffffffffc1b5c000 81920 /tmp/crash-anaysis.G904s/modules/ec.ko ffffffffc1bae080 lmv ffffffffc1b71000 372736 /tmp/crash-anaysis.G904s/modules/lmv.ko ffffffffc1c4dd00 osc ffffffffc1bcd000 778240 /tmp/crash-anaysis.G904s/modules/osc.ko ffffffffc1ce4a00 lov ffffffffc1c8c000 552960 /tmp/crash-anaysis.G904s/modules/lov.ko ffffffffc1d5eb80 mdc ffffffffc1d14000 466944 /tmp/crash-anaysis.G904s/modules/mdc.ko ffffffffc1da3000 mgc ffffffffc1d87000 184320 /tmp/crash-anaysis.G904s/modules/mgc.ko ffffffffc1dd65c0 obdecho ffffffffc1db5000 225280 /tmp/crash-anaysis.G904s/modules/obdecho.ko ffffffffc1ea7200 lfsck ffffffffc1ded000 1081344 /tmp/crash-anaysis.G904s/modules/lfsck.ko ffffffffc1f76240 lquota ffffffffc1ef6000 786432 /tmp/crash-anaysis.G904s/modules/lquota.ko ffffffffc2021ac0 osd_zfs ffffffffc1fb7000 655360 /tmp/crash-anaysis.G904s/modules/osd_zfs.ko ffffffffc20bb400 mgs ffffffffc2058000 626688 /tmp/crash-anaysis.G904s/modules/mgs.ko ffffffffc216d080 mdd ffffffffc20f2000 745472 /tmp/crash-anaysis.G904s/modules/mdd.ko ffffffffc22b7880 mdt ffffffffc21a9000 1654784 /tmp/crash-anaysis.G904s/modules/mdt.ko ffffffffc23e9480 lod ffffffffc233e000 1052672 /tmp/crash-anaysis.G904s/modules/lod.ko ffffffffc24b0fc0 ofd ffffffffc2440000 696320 /tmp/crash-anaysis.G904s/modules/ofd.ko ffffffffc2546f80 osp ffffffffc24eb000 573440 /tmp/crash-anaysis.G904s/modules/osp.ko ffffffffc26ac640 lustre ffffffffc2578000 1908736 /tmp/crash-anaysis.G904s/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, 0xffff8dbe4abbb1e8) 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 105 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, 0xffff8dbe49776968) 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 101 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, 0xffff8dbe47060a28) 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 125 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, 0xffff8dbe68d2f5a8) 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 130 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_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 0 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_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 0 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_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 0 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_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 0 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 461 total debug pages from 4 CPUs to /tmp/crash-anaysis.G904s/lustre.bin