Bug 593107
| Summary: | Crash not able to diagnose RHEL6.0 FV Xen guest | ||
|---|---|---|---|
| Product: | Red Hat Enterprise Linux 6 | Reporter: | Don Dutile (Red Hat) <ddutile> |
| Component: | crash | Assignee: | Dave Anderson <anderson> |
| Status: | CLOSED CURRENTRELEASE | QA Contact: | Dave Anderson <anderson> |
| Severity: | high | Docs Contact: | |
| Priority: | low | ||
| Version: | 6.0 | CC: | phan, qcai |
| Target Milestone: | rc | ||
| Target Release: | --- | ||
| Hardware: | x86_64 | ||
| OS: | Linux | ||
| Whiteboard: | |||
| Fixed In Version: | crash-5.0.0-15.el6 | Doc Type: | Bug Fix |
| Doc Text: | Story Points: | --- | |
| Clone Of: | Environment: | ||
| Last Closed: | 2010-11-10 20:03:38 UTC | Type: | --- |
| Regression: | --- | Mount Type: | --- |
| Documentation: | --- | CRM: | |
| Verified Versions: | Category: | --- | |
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |
| Cloudforms Team: | --- | Target Upstream Version: | |
| Embargoed: | |||
This request was evaluated by Red Hat Product Management for inclusion in a Red Hat Enterprise Linux major release. Product Management has requested further review of this request by Red Hat Engineering, for potential inclusion in a Red Hat Enterprise Linux Major release. This request is not yet committed for inclusion. QA assist: Using the supplied dumpfile, crash 5.0.0-14.el6 fails to initialize: # crash vmlinux rhel6-64fv2-smp-crash crash 5.0.0-14.el6 Copyright (C) 2002-2010 Red Hat, Inc. Copyright (C) 2004, 2005, 2006 IBM Corporation Copyright (C) 1999-2006 Hewlett-Packard Co Copyright (C) 2005, 2006 Fujitsu Limited Copyright (C) 2006, 2007 VA Linux Systems Japan K.K. Copyright (C) 2005 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) 7.0 Copyright (C) 2009 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 "x86_64-unknown-linux-gnu"... crash: invalid kernel virtual address: 4cdd5f33c7979d95 type: "possible" WARNING: cannot read cpu_possible_map crash: invalid kernel virtual address: ccf2fcf87d0bdf69 type: "present" WARNING: cannot read cpu_present_map crash: invalid kernel virtual address: 8433f1c29bff3ae1 type: "online" WARNING: cannot read cpu_online_map crash: cannot determine base kernel version crash: vmlinux and rhel6-64fv2-smp-crash do not match! Usage: crash [-h [opt]][-v][-s][-i file][-d num] [-S] [mapfile] [namelist] [dumpfile] Enter "crash -h" for details. # Crash version 5.0.0-15.el6 comes up as expected: # crash vmlinux rhel6-64fv2-smp-crash crash 5.0.0-15.el6 Copyright (C) 2002-2010 Red Hat, Inc. Copyright (C) 2004, 2005, 2006 IBM Corporation Copyright (C) 1999-2006 Hewlett-Packard Co Copyright (C) 2005, 2006 Fujitsu Limited Copyright (C) 2006, 2007 VA Linux Systems Japan K.K. Copyright (C) 2005 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) 7.0 Copyright (C) 2009 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 "x86_64-unknown-linux-gnu"... KERNEL: vmlinux DUMPFILE: rhel6-64fv2-smp-crash CPUS: 2 DATE: Mon May 17 14:40:20 2010 UPTIME: 00:01:12 LOAD AVERAGE: 0.69, 0.21, 0.07 TASKS: 42 NODENAME: (none) RELEASE: 2.6.32xenpvhvmv5 VERSION: #78 SMP Fri May 14 09:56:44 EDT 2010 MACHINE: x86_64 (2659 Mhz) MEMORY: 1 GB PANIC: "" PID: 0 COMMAND: "swapper" TASK: ffffffff8172a0c0 (1 of 2) [THREAD_INFO: ffffffff81706000] CPU: 0 STATE: TASK_RUNNING (ACTIVE) WARNING: panic task not found crash> Red Hat Enterprise Linux 6.0 is now available and should resolve the problem described in this bug report. This report is therefore being closed with a resolution of CURRENTRELEASE. You may reopen this bug report if the solution does not work for you. |
Description of problem: A crash dump of a RHEL6.0 FV xen guest running on RHEL5.5 dom0 is not traceable since crash can't figure out the phys_addr. Version-Release number of selected component (if applicable): Tried crash-5.0.0-2.el6.x86_64 & -5.0.0-14.el6.x86_64 -- same (failing) results. How reproducible: Always Steps to Reproduce: 1. Start FV RHEL6 guest on RHEL5.5 dom0 2. Take a crash dump of guest: virsh dump <domid> <path-to-corefile-to-save> 3. crash vmlinux <path-to-corefile-to-save> -- where vmlinux is the unstripped vmlinux image that was used to generate the bootable vmlinuz of the rhel6 fv guest. -- note: ran crash from bare-metal rhel6 machine (copied appropriate files to it). Actual results: # crash vmlinux rhel6-64fv2-smp-crash crash 5.0.0-14.el6 Copyright (C) 2002-2010 Red Hat, Inc. Copyright (C) 2004, 2005, 2006 IBM Corporation Copyright (C) 1999-2006 Hewlett-Packard Co Copyright (C) 2005, 2006 Fujitsu Limited Copyright (C) 2006, 2007 VA Linux Systems Japan K.K. Copyright (C) 2005 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) 7.0 Copyright (C) 2009 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 "x86_64-unknown-linux-gnu"... crash: invalid kernel virtual address: 4cdd5f33c7979d95 type: "possible" WARNING: cannot read cpu_possible_map crash: invalid kernel virtual address: ccf2fcf87d0bdf69 type: "present" WARNING: cannot read cpu_present_map crash: invalid kernel virtual address: 8433f1c29bff3ae1 type: "online" WARNING: cannot read cpu_online_map crash: cannot determine base kernel version crash: vmlinux and rhel6-64fv2-smp-crash do not match! Usage: crash [-h [opt]][-v][-s][-i file][-d num] [-S] [mapfile] [namelist] [dumpfile] Expected results: # crash vmlinux rhel6-64fv2-smp-crash --machdep phys_base=0 crash 5.0.0-14.el6 Copyright (C) 2002-2010 Red Hat, Inc. Copyright (C) 2004, 2005, 2006 IBM Corporation Copyright (C) 1999-2006 Hewlett-Packard Co Copyright (C) 2005, 2006 Fujitsu Limited Copyright (C) 2006, 2007 VA Linux Systems Japan K.K. Copyright (C) 2005 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. NOTE: setting phys_base to: 0x0 GNU gdb (GDB) 7.0 Copyright (C) 2009 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 "x86_64-unknown-linux-gnu"... KERNEL: vmlinux DUMPFILE: rhel6-64fv2-smp-crash CPUS: 2 DATE: Mon May 17 14:40:20 2010 UPTIME: 00:01:12 LOAD AVERAGE: 0.69, 0.21, 0.07 TASKS: 42 NODENAME: (none) RELEASE: 2.6.32xenhvmv5 VERSION: #78 SMP Fri May 14 09:56:44 EDT 2010 MACHINE: x86_64 (2659 Mhz) MEMORY: 1 GB PANIC: "" PID: 0 COMMAND: "swapper" TASK: ffffffff8172a0c0 (1 of 2) [THREAD_INFO: ffffffff81706000] CPU: 0 STATE: TASK_RUNNING (ACTIVE) WARNING: panic task not found crash> Additional info: if run crash w/additional param: --machdep phys_addr=0 then it gives proper response (forces phys_addr to 0; that's what it is set to on bare-metal rhel6 kernel). Adding attachment of output from crash -d1 vmlinux rhel6-64fv2-smp-crash