From mboxrd@z Thu Jan  1 00:00:00 1970
From: Simon Martin <furryfuttock@gmail.com>
Subject: Re: Stack switching in a PV guest
Date: Mon, 16 Dec 2013 11:56:08 -0300
Message-ID: <1351251014.20131216115608@gmail.com>
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To: Jan Beulich <JBeulich@suse.com>
Cc: Simon Martin <smartin@milliways.cl>, Ian Campbell <Ian.Campbell@citrix.com>, xen-devel <xen-devel@lists.xen.org>
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Thanks Jan,

> %rsp+24 ->> ???
> %rsp+32 ->> ???

> Those two are the crucial fields when you're having stack issues.

>>From  the pt_regs description those looked like unused. I'll make sure
I fill them in now.

> Furthermore, the guest's kernel stack wants to be switched via
> __HYPERVISOR_stack_switch, or else the next interrupt/exception
> would end up still using the old stack.

Thank you very much. I'll investigate that.


-- 
Best regards,
 Simon                            mailto:furryfuttock@gmail.com