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From: "debdutta" <debdutta@cdot.in>
To: kexec@lists.infradead.org
Subject: Kexec -l works but kexec -p fails
Date: Thu, 2 Jul 2015 17:15:10 +0530	[thread overview]
Message-ID: <20150702114510.M49708@cdot.in> (raw)

Hi,

 I am using linux-2.6.29-rt23 on freescale MPC8308 based board. It is a POWERPC 32 bit
processor.

 Physical memory = 512MB of which 128MB@32MB is reserved for cashkernel

 I have cross-compiled kexec-tools 2.0.10 for this board with --without-zlib and
--without-xen options.

 I have 2 kernels:

 1. production kernel with CONFIG_KEXEC, CONFIG_SYSFS, CONFIG_DEBUG_INFO,
CONFIG_PROC_VMCORE enabled

 2. capture kernel with CONFIG_CRASH_DUMP, CONFIG_PROC_VMCORE, CONFIG_SYSFS,
CONFIG_DEBUG_INFO set.

 when I give :

 kexec -l vmlinux

 kexec -e

 this successfully loads the crash kernel

 however when using the kexec -p option and triggering a crashdump  does not load the
same crashkernel.

The output that comes on screen is just these 2 lines: 
SysRq : Trigger a crashdump 
Bye!

 I am unable to find out what may be the reason. Please help.

Thanks, 
 Debdutta

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                 reply	other threads:[~2015-07-02 11:55 UTC|newest]

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