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.N63Qv/vmlinux [TAINTED] DUMPFILE: /exports/testreports/70067/testresults/sanity-compr-special9-zfs-DNE-rocky8.10_x86_64-rocky8.10_x86_64/oleg427-server-vmcore [PARTIAL DUMP] CPUS: 4 DATE: Thu Sep 10 16:14:44 EDT 2026 UPTIME: 00:06:45 LOAD AVERAGE: 1.88, 1.48, 0.73 TASKS: 408 NODENAME: oleg427-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: 8103 COMMAND: "ll_ost_io00_002" TASK: ffff929e67204f80 [THREAD_INFO: ffff929e67204f80] CPU: 0 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_log module mod: cannot find or load object file for dm_region_hash 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 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 intel_rapl_msr 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 rapl 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 dns_resolver module mod: cannot find or load object file for rpcsec_gss_krb5 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 MODULE NAME BASE SIZE OBJECT FILE ffffffffc07df740 libcfs ffffffffc07bf000 225280 /tmp/crash-anaysis.N63Qv/modules/libcfs.ko mod: cannot find or load object file for spl module mod: cannot find or load object file for zfs module ffffffffc12013c0 lnet ffffffffc1126000 1490944 /tmp/crash-anaysis.N63Qv/modules/lnet.ko ffffffffc12bc900 ksocklnd ffffffffc1293000 270336 /tmp/crash-anaysis.N63Qv/modules/ksocklnd.ko ffffffffc141d180 obdclass ffffffffc12d6000 4415488 /tmp/crash-anaysis.N63Qv/modules/obdclass.ko ffffffffc19990c0 ptlrpc ffffffffc170d000 4173824 /tmp/crash-anaysis.N63Qv/modules/ptlrpc.ko ffffffffc1b57880 ptlrpc_gss ffffffffc1b09000 524288 /tmp/crash-anaysis.N63Qv/modules/ptlrpc_gss.ko ffffffffc1b9cc80 fld ffffffffc1b8a000 126976 /tmp/crash-anaysis.N63Qv/modules/fld.ko ffffffffc1bbcac0 fid ffffffffc1baa000 126976 /tmp/crash-anaysis.N63Qv/modules/fid.ko ffffffffc1bdc740 ec ffffffffc1bca000 81920 /tmp/crash-anaysis.N63Qv/modules/ec.ko ffffffffc1c1c080 lmv ffffffffc1bdf000 372736 /tmp/crash-anaysis.N63Qv/modules/lmv.ko ffffffffc1cbe480 osc ffffffffc1c3b000 794624 /tmp/crash-anaysis.N63Qv/modules/osc.ko ffffffffc1d56b00 lov ffffffffc1cfe000 552960 /tmp/crash-anaysis.N63Qv/modules/lov.ko ffffffffc1dd0b80 mdc ffffffffc1d86000 466944 /tmp/crash-anaysis.N63Qv/modules/mdc.ko ffffffffc1e15000 mgc ffffffffc1df9000 184320 /tmp/crash-anaysis.N63Qv/modules/mgc.ko ffffffffc1e485c0 obdecho ffffffffc1e27000 225280 /tmp/crash-anaysis.N63Qv/modules/obdecho.ko ffffffffc1f19340 lfsck ffffffffc1e5f000 1081344 /tmp/crash-anaysis.N63Qv/modules/lfsck.ko ffffffffc1fe8240 lquota ffffffffc1f68000 786432 /tmp/crash-anaysis.N63Qv/modules/lquota.ko ffffffffc2094b80 osd_zfs ffffffffc2029000 659456 /tmp/crash-anaysis.N63Qv/modules/osd_zfs.ko ffffffffc212e400 mgs ffffffffc20cb000 626688 /tmp/crash-anaysis.N63Qv/modules/mgs.ko ffffffffc21e00c0 mdd ffffffffc2165000 745472 /tmp/crash-anaysis.N63Qv/modules/mdd.ko ffffffffc232a900 mdt ffffffffc221c000 1654784 /tmp/crash-anaysis.N63Qv/modules/mdt.ko ffffffffc245e900 lod ffffffffc23b1000 1064960 /tmp/crash-anaysis.N63Qv/modules/lod.ko ffffffffc2525e40 ofd ffffffffc24b6000 692224 /tmp/crash-anaysis.N63Qv/modules/ofd.ko ffffffffc25bbf80 osp ffffffffc2560000 573440 /tmp/crash-anaysis.N63Qv/modules/osp.ko ffffffffc2723780 lustre ffffffffc25ed000 1925120 /tmp/crash-anaysis.N63Qv/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, 0xffff929e4323fa68) 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 251 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, 0xffff929e72e32ae8) 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 241 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, 0xffff929e42bfcce8) 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 200 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, 0xffff929e43eb97c8) 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 233 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 925 total debug pages from 4 CPUs to /tmp/crash-anaysis.N63Qv/lustre.bin