Re: [Crash-utility] Reasons why kdump isn't activated
Hi Dave
I use crash all the time on SLES dumps. I still have problems with the SLAB stuff, even
with 5.0.
"crash: unable to initialize kmem slab cache subsystem"
Is there a fix for this or am I missing something in creating the debug vmlinux kernel
crash 5.0.0
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This GDB was configured as "x86_64-unknown-linux-gnu"...
WARNING: could not find MAGIC_START!
please wait... (gathering kmem slab cache data)\
crash: seek error: kernel virtual address: 1082fffea00 type: "kmem_cache
buffer" ---->
crash: unable to initialize kmem slab cache subsystem
SYSTEM MAP: map.0
DEBUG KERNEL: vmlinux (2.6.5-7.244-smp)
DUMPFILE: dump.0
CPUS: 4
DATE: Sat Feb 6 12:43:37 2010
UPTIME: 213503982289 days, 20:38:24
LOAD AVERAGE: 260.75, 259.77, 258.95
TASKS: 1167
NODENAME: linuscs73
RELEASE: 2.6.5-7.252-smp
VERSION: #2 SMP Mon Jun 22 13:11:57 PDT 2009
MACHINE: x86_64 (2666 Mhz)
MEMORY: 32.7 GB
PANIC: "manual"
PID: 8741
COMMAND: "lkcd_config"
TASK: 107ed5d6b40 [THREAD_INFO: 1024f3ac000]
CPU: 2
STATE: TASK_RUNNING (PANIC)
Thanks
Laurence
----- Original Message -----
From: "Chandan12 K" <chandan12.k(a)tcs.com>
To: "Discussion list for crash utility usage, maintenance and development"
<crash-utility(a)redhat.com>
Cc: "Discussion list for crash utility usage, maintenance and development"
<crash-utility(a)redhat.com>, crash-utility-bounces(a)redhat.com
Sent: Tuesday, February 9, 2010 8:59:01 AM
Subject: Re: [Crash-utility] Reasons why kdump isn't activated
First you need to figure out the reason of your system failure. If its complete power
failure, then kexec wont be able to load a new kernel in current context.
Secondly, is kexec properly configured in your system?
Chandan Kumar
Tata Consultancy Services
Mailto: chandan12.k(a)tcs.com
Website: http://www.tcs.com
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From: Gallus <gall.cwpl(a)gmail.com>
To: "Discussion list for crash utility usage, maintenance and development"
<crash-utility(a)redhat.com>
Date: 02/09/2010 07:10 PM
Subject: [Crash-utility] Reasons why kdump isn't activated
Sent by: crash-utility-bounces(a)redhat.com
Hi,
what can be any reasons why kdump mechanism isn't triggered? My first
though is that it means a hardware failure, not a kernel problem.
Regards,
Mariusz Gniazdowski
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