Messages in this thread |  | | | Date | Tue, 31 Jul 2007 13:04:58 +0200 | | From | Pavel Machek <> | | Subject | Re: [PATH 0/1] Kexec jump - v2 - the first step to kexec based hibernation |
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Hi!
> 3. Boot kernel compiled for normal usage, the reserved crash kernel > memory region must be added to kernel command line as following: > > crashkernel=<XX>M@<XX>M > > Where, <XX> should be replaced by the real memory size and > position.
I used crashkernel=64M@64M .
> 4. Load kernel compiled for hibernating usage as a crashdump kernel > with kexec, the same kernel as that of 3 can be used if > CONFIG_RELOCATABLE=y is selected. The kernel command line option as > following must be appended to kernel command line. > > kexec_jump_buf_pfn=`cat /sys/kernel/kexec_jump_buf_pfn` > > For example, the shell command line can be as follow: > > kexec -p /boot/vmlinux --args-linux --append="root=/dev/hdb signal > kexec_jump_buf_pfn=`cat /sys/kernel/kexec_jump_buf_pfn`"
I think I followed the instructions closely. Now I'm trying to do
kexec -p /data/l/linux/vmlinux --args-linux --append="init=/bin/bash kexec_jump_buf_pfn=`cat /sys/kernel/kexec_jump_buf_pfn`"
but it tells me:
Invalid memory segment 0x100000 - 0x7a0fff (and nothing in dmesg)
If I try to load bzImage (corresponding to vmlinux I tried to use), I get:
root@amd:~# kexec -p /data/l/linux/arch/i386/boot/bzImage --append="init=/bin/bash kexec_jump_buf_pfn=`cat /sys/kernel/kexec_jump_buf_pfn`" Could not find a free area of memory of 9000 bytes... locate_hole failed root@amd:~#
What am I doing wrong? Pavel -- (english) http://www.livejournal.com/~pavelmachek (cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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