Bug 662950 - Netdump failed to dump vmcore on PPC64
Summary: Netdump failed to dump vmcore on PPC64
Keywords:
Status: CLOSED NOTABUG
Alias: None
Product: Red Hat Enterprise Linux 4
Classification: Red Hat
Component: netdump
Version: 4.9
Hardware: ppc64
OS: Linux
low
medium
Target Milestone: rc
: ---
Assignee: Neil Horman
QA Contact: qe-baseos-daemons
URL:
Whiteboard:
Depends On:
Blocks: 662952
TreeView+ depends on / blocked
 
Reported: 2010-12-14 09:11 UTC by Chao Ye
Modified: 2010-12-15 12:02 UTC (History)
0 users

Fixed In Version:
Doc Type: Bug Fix
Doc Text:
Clone Of:
: 662952 (view as bug list)
Environment:
Last Closed: 2010-12-15 12:02:37 UTC
Target Upstream Version:
Embargoed:


Attachments (Terms of Use)

Description Chao Ye 2010-12-14 09:11:55 UTC
Description of problem:
I setup netdump service. When triggered a crash, it didn't start dump vmcore. I got these from console:
===================================================
INIT: version 2.85 reloading
[...network console startup...]
SysRq : Crashing the kernel by request
cpu 0x2: Vector: 300 (Data Access) at [c00000002964f920]
    pc: c0000000001d047c: .sysrq_handle_crash+0x4/0xc
    lr: c0000000001d08d8: .__handle_sysrq+0xb8/0x18c
    sp: c00000002964fba0
   msr: 8000000000001032
   dar: 0
 dsisr: 42000000
  current = 0xc00000002f46c5c0
  paca    = 0xc000000000409800
    pid   = 3812, comm = bash
enter ? for help
2:mon> 

Version-Release number of selected component (if applicable):
kernel-2.6.9-92.EL.ppc64
netdump-0.7.16-15.ppc

How reproducible:
100%

Steps to Reproduce:
1.Get RHEL4-U9-re20101130.0 installed
2.Setup netdump service 
3.Trigger a crash
  
Actual results:
Drop

Expected results:


Additional info:
I also tested RHEL4-U8, got same output from console.

Comment 1 Neil Horman 2010-12-14 11:41:32 UTC
is this only on this particular system, or on multiple ppc64 systems?

Comment 2 Chao Ye 2010-12-15 05:56:52 UTC
My mistake, by add "xmon=off" to yaboot.conf, I can disable xmon.
Then everything goes fine.

Comment 3 Chao Ye 2010-12-15 10:47:03 UTC
Hi Neil

I've finished the test. Netdump works fine on ppc64.

Thanks 
ChaoYe

Comment 4 Neil Horman 2010-12-15 12:02:37 UTC
cool, thanks!


Note You need to log in before you can comment on or make changes to this bug.