------- Comment From pavra...@in.ibm.com 2020-03-11 03:11 EDT------- Tested with proposed kernel [ 5.4.0-14-generic ] issue is not observed.
:/var/crash/202003110155# crash /usr/lib/debug/boot/vmlinux-5.4.0-14-generic dump.202003110155 crash 7.2.8 Copyright (C) 2002-2020 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 NEC Corporation Copyright (C) 1999, 2002, 2007 Silicon Graphics, Inc. Copyright (C) 1999, 2000, 2001, 2002 Mission Critical Linux, 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. GNU gdb (GDB) 7.6 Copyright (C) 2013 Free Software Foundation, Inc. License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html> 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 "powerpc64le-unknown-linux-gnu"... KERNEL: /usr/lib/debug/boot/vmlinux-5.4.0-14-generic DUMPFILE: dump.202003110155 [PARTIAL DUMP] CPUS: 176 DATE: Wed Mar 11 01:54:46 2020 UPTIME: 00:05:32 LOAD AVERAGE: 0.00, 0.03, 0.02 TASKS: 1719 NODENAME: ltc-wcwsp3 RELEASE: 5.4.0-14-generic VERSION: #17-Ubuntu SMP Thu Feb 6 22:47:13 UTC 2020 MACHINE: ppc64le (2800 Mhz) MEMORY: 256 GB PANIC: "Kernel panic - not syncing: sysrq triggered crash" PID: 7542 COMMAND: "bash" TASK: c000001f7d950800 [THREAD_INFO: c000001f7d950800] CPU: 72 STATE: TASK_RUNNING (PANIC) crash> bt PID: 7542 TASK: c000001f7d950800 CPU: 72 COMMAND: "bash" #0 [c000001f24e07b50] panic at c00000000013aec4 #1 [c000001f24e07bf0] sysrq_handle_crash at c0000000008fb798 #2 [c000001f24e07c50] __handle_sysrq at c0000000008fc124 #3 [c000001f24e07cf0] write_sysrq_trigger at c0000000008fc85c #4 [c000001f24e07d20] proc_reg_write at c00000000054aeb0 #5 [c000001f24e07d60] __vfs_write at c000000000472ba8 #6 [c000001f24e07d80] vfs_write at c000000000473efc #7 [c000001f24e07dd0] ksys_write at c000000000476a94 #8 [c000001f24e07e20] system_call at c00000000000b278 System Call [c01] exception frame: R0: 0000000000000004 R1: 00007fffc42b7780 R2: 000076ef82ba7100 R3: 0000000000000001 R4: 00000ecb417f7050 R5: 0000000000000002 R6: 0000000000000010 R7: 0000000000000020 R8: 0000000000000000 R9: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 R13: 000076ef82ccb180 NIP: 000076ef82aa6e84 MSR: 900000000280f033 OR3: 0000000000000001 CTR: 0000000000000000 LR: 000076ef82a12b94 XER: 0000000000000000 CCR: 0000000028422488 MQ: 0000000000000000 DAR: 00000ecb41806d38 DSISR: 000000000a000000 Syscall Result: 0000000000000000 crash> bbt -a crash: command not found: bbt crash> bt -a PID: 0 TASK: c0000000019d2300 CPU: 0 COMMAND: "swapper/0" R0: c0000000000c6714 R1: c000000001a57cb0 R2: c000000001a5bb00 R3: c000000001a57b38 R4: c0000000000c6214 R5: 0000000010000000 R6: 0000000000000001 R7: 0000000000000001 R8: c000000001cf09a0 R9: 0000000000000000 R10: 00000000000000ff R11: 0000000010000000 R12: c00000000003c4d0 R13: c000000001cf0000 R14: 0000000000000000 R15: 0000000000000000 R16: 0000000000000000 R17: 0000000000000000 R18: 0000000000000000 R19: 0000000000000006 R20: c000000001987a48 R21: c000001ffbc87c48 R22: 0000000000000001 R23: 0000000000080000 R24: c0000000019d2300 R25: 0000000000000006 R26: 0000000000000000 R27: 00000063a8eaf0c8 R28: c000001ffbc87c48 R29: c000000001987c88 R30: c000000001987a48 R31: 0000000000000006 NIP: c0000000000c6714 MSR: 9000000000001033 OR3: 0000000000000006 CTR: c00000000003c4d0 LR: c0000000000c6714 XER: 0000000000000000 CCR: 0000000024000248 MQ: c0000000019d2300 DAR: 0000000000000000 DSISR: 00000063a8eaf0c8 Syscall Result: c000001ffbc87c48 [NIP : power9_idle_type+84] #0 [c000000001a57cb0] power9_idle_type at c0000000000c6714 #1 [c000000001a57ce0] stop_loop at c000000000c1a920 #2 [c000000001a57d10] cpuidle_enter_state at c000000000c15a54 #3 [c000000001a57d90] cpuidle_enter at c000000000c160ac #4 [c000000001a57dd0] call_cpuidle at c00000000018c97c #5 [c000000001a57df0] do_idle at c00000000018cfdc #6 [c000000001a57e90] cpu_startup_entry at c00000000018d33c #7 [c000000001a57ec0] rest_init at c0000000000106a0 #8 [c000000001a57ef0] start_kernel at c0000000013443b8 #9 [c000000001a57f90] start_here_common at c00000000000accc PID: 0 TASK: c000001ff39db000 CPU: 1 COMMAND: "swapper/1" R0: c0000000000c6714 R1: c000001ff3a7bcf0 R2: c000000001a5bb00 R3: c000001ff3a7bb78 R4: c0000000000c6214 R5: 0000000010000001 R6: 0000000000000002 R7: 0000000000000003 R8: c000000001cf09a0 R9: 0000000000000000 R10: 00000000000000ff R11: 0000000010000000 R12: c00000000003c4d0 R13: c000001fffffde00 R14: 0000000000000000 R15: 0000000000000000 R16: 0000000000000000 R17: c00000000002fc60 R18: c000000000053980 R19: 0000000000000006 R20: c000000001987a48 R21: c000001ffbd37c48 R22: 0000000000000001 R23: 0000000000080000 R24: c000001ff39db000 R25: 0000000000000006 R26: 0000000000000000 R27: 00000063a8eaf4c8 R28: c000001ffbd37c48 R29: c000000001987c88 R30: c000000001987a48 R31: 0000000000000006 NIP: c0000000000c6714 MSR: 9000000000001033 OR3: 0000000000000006 CTR: c00000000003c4d0 LR: c0000000000c6714 XER: 0000000000000000 CCR: 0000000024004228 MQ: c000001ff39db000 DAR: 0000000000000000 DSISR: 00000063a8eaf4c8 Syscall Result: c000001ffbd37c48 [NIP : power9_idle_type+84] #0 [c000001ff3a7bcf0] power9_idle_type at c0000000000c6714 -- MO Thanks, Pavithra -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1861265 Title: Ubuntu 20.04 [ WSP P9 ] : crash tool fails to analyze the dump captured during kdump. 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