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From: sepanta s <sapanta992@gmail.com>
To: Wei Liu <wei.liu2@citrix.com>
Cc: xen-devel@lists.xen.org
Subject: Re: MEM_SHARING_DEBUG
Date: Tue, 14 Jun 2016 10:51:33 +0430	[thread overview]
Message-ID: <CABaiLQ8irSarVfV=YQqRtAONZwZsYSqdkMpsK6uyc8k3WdUmvw@mail.gmail.com> (raw)
In-Reply-To: <20160613082937.GB25425@citrix.com>


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On Mon, Jun 13, 2016 at 12:59 PM, Wei Liu <wei.liu2@citrix.com> wrote:

> On Sun, Jun 12, 2016 at 02:37:29PM +0430, sepanta s wrote:
> > Hi,
> >
> > how to does MEM_SHARING_DEBUG works in xen ?
> > This function is located at and its internal structure is
> > xen/arch/x86/mm/mem_sharing.c
> > <
> https://github.com/mirage/xen/blob/a6f2cdb633bf519244a16674031b8034b581ba7f/xen/arch/x86/mm/mem_sharing.c
> >
> > debugtrace_printk("*mem_sharing_debug*: %s(): " _f, __func__, ##_a)
> > , so where the logs are being saved?
>
> From reading the code it can be configured to go to the hypervisor
> console. You then can use xl dmesg to view it.
>
> Should I change the mem_debug_share to printk you mean?
dmesg buffer is limited and I miss some debugging info.


> Note that you need to have a debug hypervisor to have debugtrace
> support. Then you can use xl debug-keys T to toggle whether the output
> goes to console directly or goes to internal buffer.
>
>  I have enabled debugging in xen as I changed debug:= y in Config.mk.
But after compilation and reboot, when I select booting from xen hypervisor
in the grub menu, my ubuntu goes beyond the initialzing ram and then it
reboots.
Am I missing something?

Wei.
>
> > _______________________________________________
> > Xen-devel mailing list
> > Xen-devel@lists.xen.org
> > http://lists.xen.org/xen-devel
>
>

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  reply	other threads:[~2016-06-14  6:21 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-06-12 10:07 MEM_SHARING_DEBUG sepanta s
2016-06-13  8:29 ` MEM_SHARING_DEBUG Wei Liu
2016-06-14  6:21   ` sepanta s [this message]
2016-06-14  8:34     ` MEM_SHARING_DEBUG Wei Liu
2016-06-14  9:16       ` MEM_SHARING_DEBUG sepanta s
2016-06-14  9:34         ` MEM_SHARING_DEBUG Wei Liu

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