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RE: [Xen-devel] serial console & sysrq?
| To: | "Hollis Blanchard" <hollisb@xxxxxxxxxx>, <xen-devel@xxxxxxxxxxxxxxxxxxx> |
|---|---|
| Subject: | RE: [Xen-devel] serial console & sysrq? |
| From: | "Ian Pratt" <m+Ian.Pratt@xxxxxxxxxxxx> |
| Date: | Wed, 17 Aug 2005 18:18:01 +0100 |
| Delivery-date: | Wed, 17 Aug 2005 17:16:11 +0000 |
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| Thread-index: | AcWjSw6I/+FNhoFORViGio2KoOx6ZQABBkgg |
| Thread-topic: | [Xen-devel] serial console & sysrq? |
> On Thursday 11 August 2005 05:16, Ian Pratt wrote: > > > is there some way to trigger sysrq from the serial console in > > > xenlinux? With native linux it works by sending a break + sysrq > > > letter, in xenlinux it doesn't work that way though ... > > > > I'm not entirely sure how 'break' is signalled from the UART. We'll > > certainly fail to pass it on through xen to Linux as > there's no side > > channel. > > The hvc_console driver (used by kernels running on the > pSeries hypervisor) has a similar problem. ^O is used as the > break character there. Seems reasonable. It would be good if someone could knock up a patch that adds ^O sysrq support for xen console... Ian _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-devel |
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