Subject: Re: kexec load failure introduced by "x86, memblock: Replace e820_/_early string with memblock_"

From: CAI Qian <[email-masked]>
Date: Sun, 26 Sep 2010 02:55:32 -0400 (EDT)

----- "Yinghai Lu" <[email-masked]> wrote:

> On 09/25/2010 08:11 PM, [email-masked] 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+?
No, both kernels were the same version. I am sorry the above logs were misleading that were copy-and-pasted from different kernel versions.
> 
> Yinghai
> 
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