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xen-devel
Re: [Patch][RFC] Support "xm dump" (is Re: [Xen-devel] Re: [Patch] Enabl
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To: |
Tristan Gingold <Tristan.Gingold@xxxxxxxx>, John Levon <levon@xxxxxxxxxxxxxxxxx>, Keir Fraser <Keir.Fraser@xxxxxxxxxxxx> |
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Subject: |
Re: [Patch][RFC] Support "xm dump" (is Re: [Xen-devel] Re: [Patch] Enable "sysrq c" handler for domU coredump) |
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From: |
Akio Takebe <takebe_akio@xxxxxxxxxxxxxx> |
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Date: |
Thu, 03 Aug 2006 21:57:02 +0900 |
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Cc: |
Muli Ben-Yehuda <muli@xxxxxxxxxx>, Horms <horms@xxxxxxxxxxxx>, Akio Takebe <takebe_akio@xxxxxxxxxxxxxx>, xen-devel <xen-devel@xxxxxxxxxxxxxxxxxxx>, Kouya Shimura <kouya@xxxxxxxxxxxxxx> |
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Thu, 03 Aug 2006 06:00:37 -0700 |
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Hi, all
>> For example panic dump option is used when domU kernel is hungup,
>> and we want to reboot and make coredump atomatically.
>I'd prefer 'xm crash' (or 'xm panic') and 'xm dump' .
>I'd prefer 'xm dump' *not* to panic by default. It is too dangerous.
>
OK. I also think both are necessary.
How about the following specification?
1. xm crash
This is only for crashing a domain.
If enable-dump is yes, we can get the domain's core after crash.
And If we want to atomatically reboot, we should set on_crash='restart'
in domain configuration.
2. xm dump
This is for live dumping a domain.
This implementation is:
1. pause the domain
2. dumping the domain
3. unpause the domain
4. reboot (if --noreboot option, don't reboot)
I think we want to reboot when we want to dump.
So I want to be default reboot.
BTW, I think the feature to online-dump domain and
hypervisor is also necessary.(meaning online is "don't pause")
Best Regards,
Akio Takebe
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