From mboxrd@z Thu Jan  1 00:00:00 1970
From: Yinghai Lu <yinghai-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>
Subject: Re: kexec load failure introduced by "x86,
	memblock: Replace e820_/_early string with memblock_"
Date: Sat, 25 Sep 2010 23:44:28 -0700
Message-ID: <4C9EEBCC.8090409@kernel.org>
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To: caiqian-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org
Cc: linux-next <linux-next-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>, kexec <kexec-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org>, "H. Peter Anvin" <hpa-YMNOUZJC4hwAvxtiuMwx3w@public.gmane.org>
List-Id: linux-next.vger.kernel.org

On 09/25/2010 08:11 PM, caiqian-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org wrote:
> # /sbin/kexec -p '--command-line=ro root=/dev/mapper/VolGroup-lv_root rd_LVM_LV=VolGroup/lv_root rd_LVM_LV=VolGroup/lv_swap rd_NO_LUKS rd_NO_MD rd_NO_DM LANG=en_US.UTF-8 SYSFONT=latarcyrheb-sun16 KEYBOARDTYPE=pc KEYTABLE=us rhgb quiet console=tty0 console=ttyS0,115200 crashkernel=128M irqpoll maxcpus=1 reset_devices cgroup_disable=memory ' --initrd=/boot/initrd-2.6.36-rc3+kdump.img /boot/vmlinuz-2.6.36-rc3+
> 
> BUG: unable to handle kernel paging request at ffff8800dfffe400
> IP: [<ffffffff8113376b>] per_cpu_ptr_to_phys+0x3b/0x120
> PGD 1a26063 PUD 1fffc067 PMD 1fffd067 PTE 0
> Oops: 0000 [#1] SMP 
> last sysfs file: /sys/devices/system/cpu/cpu0/crash_notes
> CPU 3 
> Modules linked in: ipt_REJECT nf_conntrack_ipv4 nf_defrag_ipv4 iptable_filter ip_tables ip6t_REJECT nf_conntrack_ipv6 xt_state nf_conntrack ip6table_filter ip6_tables ipv6 virtio_balloon pcspkr 8139too 8139cp mii snd_intel8x0 snd_ac97_codec ac97_bus snd_seq snd_seq_device snd_pcm snd_timer snd soundcore snd_page_alloc sg i2c_piix4 i2c_core ext4 mbcache jbd2 floppy sd_mod crc_t10dif virtio_pci virtio_ring virtio pata_acpi ata_generic ata_piix dm_mod [last unloaded: scsi_wait_scan]
> 
> Pid: 5671, comm: kexec Not tainted 2.6.35+ #11 /KVM
> RIP: 0010:[<ffffffff8113376b>]  [<ffffffff8113376b>] per_cpu_ptr_to_phys+0x3b/0x120

are you kexec from 2.6.35+ to 2.6.36-rc3+?

Yinghai