Re: [Xen-devel] crashdump on PVM Dom0

[Minjun Hong <nickeysgo@xxxxxxxxx>]

Oh!! I'm so sorry Jan Beulich.

It is my first time to use this mailing list.

Please understand my fault, this time only.

Anyway, as you mentioned, I added below line in '/etc/default/grub' file and reboot:

> GRUB_CMDLINE_XEN="crashkernel=384M-:256M@64M"

Then,

1. I cannot see anything when I type "grep -i crash /proc/iomem"

2. I can see kernel log of Xen hypervisor when I type "sudo xl dmesg | grep -i crash":

(XEN) Command line: placeholder crashkernel=384M-:256M@64M

I suppose a 'crashkernel' cmdline option of either Xen hypervisor or Dom0 kernel can be enabled.

I know it is quite difficult to advise some problems online but, could you give me a piece of hint?

Sincerely,

On Mon, Aug 28, 2017 at 6:13 PM, Jan Beulich <JBeulich@xxxxxxxx> wrote:

>>> On 28.08.17 at 11:04, <nickeysgo@xxxxxxxxx> wrote:
> Thank you for your reply.
> I checked what you mentioned(Xen command line).
> But I could not find where the Xen command line configuration.
> As I think, it would be in /etc/default/grub file because Dom0 is used for
> booting like native system.
> Is it wrong? I didn't get your point?

First of all - please avoid private mails. Keep the list Cc-ed.

And then - I can't tell you how to configure your variant of grub.
All I can tell you is that the option you're after needs to be
passed to Xen.

Jan

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