[Xen-users] Kernel panic with kernel 2.6.16-xen3_86.1 in a Dell PE 1850

[Gustavo Chaves <gustavo@xxxxxxxxxxx>]

Hi,

I'm getting a kernel panic when booting a Dell PowerEdge 1850 with
kernel 2.6.16-xen3_86.1 which I installed from the
xen-3.0-x86_32-rhel4.1.bin.tar package I got from XenSource.

My /boot/grub/grub.conf configuration is this:

        title Xen (2.6.16-xen3_86.1)
                root (hd0,0)
                kernel /xen-3.gz com1=115200,8n1 noreboot
                module /vmlinuz-2.6.16-xen3_86.1_rhel4.1 
root=/dev/VolGroup00/LogVol00 ro maxcpus=1 console=tty1 console=ttyS0,115200n8 
dom0_mem=1G
                module /initrd-2.6.16-xen3_86.1_rhel4.1.img

The boot messages just before the kernel panic are the following.
(I've written them down by hand because I don't have a serial
connection to the server.)

        scsi[0]: scanning scsi channel 1 [virtual] for logical drives
          Vendor: MegaRAID  <...>
          Type:   Direct-Access  <...>
        SCSI device sda: 143114240 512-byte hdwr sectors (73274 MB)
        sda: Write Protect is off
        sda: asking for cache data failed
        sda: assuming drive cache: write through
        SCSI device sda: 143114240 512-byte hdwr sectors (73274 MB)
        sda: Write Protect is off
        sda: asking for cache data failed
        sda: assuming drive cache: write through
         sda: sda1 sda2 sda3
        sd 0:1:0:0: Attached scsi disk sda
        Kernel panic - not syncing: Attempred to kill init!

Just for reference I'm attaching the /var/log/dmesg file after I
rebooted the machine using the original Red Hat Enterprise Linux AS
(2.6.9-5.ELsmp) kernel.  The messages are almost the same until the
'kernel panic' one.

I'm thinking about building the kernel from scratch instead of relying
on the binaries provided.  But I'm afraid that the pristine 2.6.16
kernel that will be used isn't the most apropriate for this server.
Perhaps I should try to use the RHEL4 source package and apply the xen
patch to it... 

I'm not sure about what to do first now...

Thank you for any suggestion.

-- 
Gustavo Leite de Mendonça Chaves
CPqD - Gerência de Tecnologia da Informação
Tel.: +55 19 3705-7003 / Fax: +55 19 3705-6113
gustavo@xxxxxxxxxxx
www.cpqd.com.br

dmesg.txt.gz
Description: Binary data

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