Re: [Xen-users] Segmentation Fault

[Nico Kadel-Garcia <nkadel@xxxxxxxxx>]

kashif.ali@xxxxxxxxxx wrote:
> Hello,
>
> I am running a server having 5 guest domains. Few days ago everything is
> going fine but i needed to recompile the kernel of the guest domain (xenU)
> for iptables supports in the kernel.
>
> When i issued the command 'make menuconfig' the result is nothing but
> segmentation fualt
> I have run the memtest also but memtest is good. Now the situation is that
> the system is not allowing me to compile, install or upgrade any thing,
> even on cp or mv commands, the segmentation fault is coming.
>   
Could your guest domain have been *hacked*, by a cracker? Can you shut 
down the Xen guest domain and do a "chroot" to the mounted file system, 
and see if anything works? Or are you running from
> Also the xend service is not running, when i try to start this service the
> system goes to waiting state and needed to stop the issued command.
>   
Wait. xend runs only on the server, Dom0, not on DomU. Did you put the 
new kernel on Dom0, or are you using pygrub or its like to boot a local 
kernel on the guest domain?
> Also on the boot the eth0 is not coming up. ifconfig is showing me only lo
> interface. So every time it requires assigning the network settings (ips).
> And when the network settings are applied, the eth0 came up and works.
>   
This sounds like you compiled on top of and overwrite the system kernel 
on Dom0.


> Any body has pointers to this problem. I have searched the mailing list
> but not found any feasible solution.
>
> The server has CentOS4.4 installed and also the guest domains.
> The xen version is 'xen-3.0.2'
>   
Well, upgrade to CentOS 4.5. then, stop compiling your own kernels 
unless you're comfortable with that sort of thing and stick with the 
Xensource CentOS 3.1,0 distribution for RHEL 4.
> CPU info: Intel(R) Xeon(R)          E5320  @ 1.86GHz
> 12GB RAM
>
> lspci command has the following output
>
> 00:00.0 Host bridge: Intel Corporation 5000P Chipset Memory Controller Hub
> (rev b1)
> 00:02.0 PCI bridge: Intel Corporation 5000 Series Chipset PCI Express x8
> Port 2-3 (rev b1)
> 00:04.0 PCI bridge: Intel Corporation 5000 Series Chipset PCI Express x8
> Port 4-5 (rev b1)
> 00:06.0 PCI bridge: Intel Corporation 5000 Series Chipset PCI Express x8
> Port 6-7 (rev b1)
> 00:10.0 Host bridge: Intel Corporation 5000 Series Chipset Error Reporting
> Registers (rev b1)
> 00:10.1 Host bridge: Intel Corporation 5000 Series Chipset Error Reporting
> Registers (rev b1)
> 00:10.2 Host bridge: Intel Corporation 5000 Series Chipset Error Reporting
> Registers (rev b1)
> 00:11.0 Host bridge: Intel Corporation 5000 Series Chipset Reserved
> Registers (rev b1)
> 00:13.0 Host bridge: Intel Corporation 5000 Series Chipset Reserved
> Registers (rev b1)
> 00:15.0 Host bridge: Intel Corporation 5000 Series Chipset FBD Registers
> (rev b1)
> 00:16.0 Host bridge: Intel Corporation 5000 Series Chipset FBD Registers
> (rev b1)
> 00:1c.0 PCI bridge: Intel Corporation 631xESB/632xESB/3100 Chipset PCI
> Express Root Port 1 (rev 09)
> 00:1d.0 USB Controller: Intel Corporation 631xESB/632xESB/3100 Chipset
> UHCI USB Controller #1 (rev 09)
> 00:1d.1 USB Controller: Intel Corporation 631xESB/632xESB/3100 Chipset
> UHCI USB Controller #2 (rev 09)
> 00:1d.2 USB Controller: Intel Corporation 631xESB/632xESB/3100 Chipset
> UHCI USB Controller #3 (rev 09)
> 00:1d.7 USB Controller: Intel Corporation 631xESB/632xESB/3100 Chipset
> EHCI USB2 Controller (rev 09)
> 00:1e.0 PCI bridge: Intel Corporation 82801 PCI Bridge (rev d9)
> 00:1f.0 ISA bridge: Intel Corporation 631xESB/632xESB/3100 Chipset LPC
> Interface Controller (rev 09)
> 00:1f.1 IDE interface: Intel Corporation 631xESB/632xESB IDE Controller
> (rev 09)
> 00:1f.3 SMBus: Intel Corporation 631xESB/632xESB/3100 Chipset SMBus
> Controller (rev 09)
> 01:00.0 PCI bridge: Intel Corporation 6311ESB/6321ESB PCI Express Upstream
> Port (rev 01)
> 01:00.3 PCI bridge: Intel Corporation 6311ESB/6321ESB PCI Express to PCI-X
> Bridge (rev 01)
> 02:00.0 PCI bridge: Intel Corporation 6311ESB/6321ESB PCI Express
> Downstream Port E1 (rev 01)
> 02:02.0 PCI bridge: Intel Corporation 6311ESB/6321ESB PCI Express
> Downstream Port E3 (rev 01)
> 03:00.0 PCI bridge: Intel Corporation 6700PXH PCI Express-to-PCI Bridge A
> (rev 09)
> 03:00.2 PCI bridge: Intel Corporation 6700PXH PCI Express-to-PCI Bridge B
> (rev 09)
> 04:01.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL-8169
> Gigabit Ethernet (rev 10)
> 06:00.0 Ethernet controller: Intel Corporation 631xESB/632xESB DPT LAN
> Controller Copper (rev 01)
> 06:00.1 Ethernet controller: Intel Corporation 631xESB/632xESB DPT LAN
> Controller Copper (rev 01)
> 07:01.0 RAID bus controller: 3ware Inc 9550SX SATA-RAID
> 0b:01.0 VGA compatible controller: ATI Technologies Inc ES1000 (rev 02)
>
> I have installed the xen from source not from the rpms.
> All the hints will be greatly appreciated...
>
> Thanking you,
> Kashif
>   
Use the RPM, and edit your own locally built grub.conf. Seriously.

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