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.19HM3/vmlinux [TAINTED] DUMPFILE: /exports/testreports/68866/testresults/sanity-pfl-special5-zfs-rocky8.10_x86_64-rocky8.10_x86_64/oleg628-server-vmcore [PARTIAL DUMP] CPUS: 4 DATE: Wed Aug 26 06:31:23 EDT 2026 UPTIME: 00:06:14 LOAD AVERAGE: 1.16, 1.18, 0.64 TASKS: 354 NODENAME: oleg628-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: 6679 COMMAND: "ll_ost_io00_000" TASK: ffff9a84b75227c0 [THREAD_INFO: ffff9a84b75227c0] 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 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 serio_raw module mod: cannot find or load object file for crc32_pclmul module mod: cannot find or load object file for ghash_clmulni_intel 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 ata_piix module mod: cannot find or load object file for intel_rapl_msr module mod: cannot find or load object file for pcspkr module mod: cannot find or load object file for dns_resolver 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 sb_edac module mod: cannot find or load object file for rapl module mod: cannot find or load object file for intel_rapl_common module mod: cannot find or load object file for nfsv4 module mod: cannot find or load object file for auth_rpcgss module mod: cannot find or load object file for rpcsec_gss_krb5 module MODULE NAME BASE SIZE OBJECT FILE ffffffffc0433740 libcfs ffffffffc0413000 225280 /tmp/crash-anaysis.19HM3/modules/libcfs.ko mod: cannot find or load object file for spl module mod: cannot find or load object file for zfs module ffffffffc0e553c0 lnet ffffffffc0d7a000 1490944 /tmp/crash-anaysis.19HM3/modules/lnet.ko ffffffffc0f10900 ksocklnd ffffffffc0ee7000 270336 /tmp/crash-anaysis.19HM3/modules/ksocklnd.ko ffffffffc106fa80 obdclass ffffffffc0f2a000 4403200 /tmp/crash-anaysis.19HM3/modules/obdclass.ko ffffffffc15ea0c0 ptlrpc ffffffffc135e000 4173824 /tmp/crash-anaysis.19HM3/modules/ptlrpc.ko ffffffffc17a8880 ptlrpc_gss ffffffffc175a000 524288 /tmp/crash-anaysis.19HM3/modules/ptlrpc_gss.ko ffffffffc17edc80 fld ffffffffc17db000 126976 /tmp/crash-anaysis.19HM3/modules/fld.ko ffffffffc180dac0 fid ffffffffc17fb000 126976 /tmp/crash-anaysis.19HM3/modules/fid.ko ffffffffc182d740 ec ffffffffc181b000 81920 /tmp/crash-anaysis.19HM3/modules/ec.ko ffffffffc186d080 lmv ffffffffc1830000 372736 /tmp/crash-anaysis.19HM3/modules/lmv.ko ffffffffc190e2c0 osc ffffffffc188c000 790528 /tmp/crash-anaysis.19HM3/modules/osc.ko ffffffffc19a6a00 lov ffffffffc194e000 552960 /tmp/crash-anaysis.19HM3/modules/lov.ko ffffffffc1a20b80 mdc ffffffffc19d6000 466944 /tmp/crash-anaysis.19HM3/modules/mdc.ko ffffffffc1a65000 mgc ffffffffc1a49000 184320 /tmp/crash-anaysis.19HM3/modules/mgc.ko ffffffffc1a985c0 obdecho ffffffffc1a77000 225280 /tmp/crash-anaysis.19HM3/modules/obdecho.ko ffffffffc1b69340 lfsck ffffffffc1aaf000 1081344 /tmp/crash-anaysis.19HM3/modules/lfsck.ko ffffffffc1c38240 lquota ffffffffc1bb8000 786432 /tmp/crash-anaysis.19HM3/modules/lquota.ko ffffffffc1ce3ac0 osd_zfs ffffffffc1c79000 655360 /tmp/crash-anaysis.19HM3/modules/osd_zfs.ko ffffffffc1d7d400 mgs ffffffffc1d1a000 626688 /tmp/crash-anaysis.19HM3/modules/mgs.ko ffffffffc1e2f080 mdd ffffffffc1db4000 745472 /tmp/crash-anaysis.19HM3/modules/mdd.ko ffffffffc1f79940 mdt ffffffffc1e6b000 1654784 /tmp/crash-anaysis.19HM3/modules/mdt.ko ffffffffc20ab480 lod ffffffffc2000000 1052672 /tmp/crash-anaysis.19HM3/modules/lod.ko ffffffffc216fa40 ofd ffffffffc2102000 679936 /tmp/crash-anaysis.19HM3/modules/ofd.ko ffffffffc2204f80 osp ffffffffc21a9000 573440 /tmp/crash-anaysis.19HM3/modules/osp.ko ffffffffc236a6c0 lustre ffffffffc2236000 1912832 /tmp/crash-anaysis.19HM3/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, 0xffff9a848301fbe8) 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, 0xffff9a8484baf7a8) 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 855 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, 0xffff9a8484b933a8) 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, 0xffff9a84bd053b88) 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 811 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 3714 total debug pages from 4 CPUs to /tmp/crash-anaysis.19HM3/lustre.bin