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Date:      Tue, 7 Jan 2014 09:20:35 +0100
From:      =?ISO-8859-1?Q?Roger_Pau_Monn=E9?= <roger.pau@citrix.com>
To:        Mike C. <miguelmclara@gmail.com>, <freebsd-xen@freebsd.org>
Subject:   Re: Panic with FreeBSD 10 RC2 on Netbsd Xen dom0
Message-ID:  <52CBB8D3.8090508@citrix.com>
In-Reply-To: <52B2AC26.2020301@citrix.com>
References:  <20131218001615.GA10501@moore.morphism.de> <FD2319E7-8703-46A8-91A7-AAD491AC56FA@gmail.com> <52B24E18.7090109@gmail.com> <52B2AC26.2020301@citrix.com>

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On 19/12/13 09:19, Roger Pau Monné wrote:
> On 19/12/13 02:38, Mike C. wrote:
>> I've reported this to xen-devel I while ago.
>>
>>
>> It worked in the first FreeBSD-10 current releases but them it stoped, I
>> believe a previous issue was re-introduced somehow!
>>
>> NetBSD Xen backend does not support TSO/GSO at all, there was a very
>> similar problem in FreeBSD 9 a while a go, and my guess is that the code
>> tried to use TSO again, and leads to problems if the Dom0 is NetBSD.
>>
>>
>> Also more recently I had problems with Windows GPLPV drivers, and the
>> dev tracked the issue to the same.. however in windows DomU's if I
>> disabled TSO it would work.
>> In FreeBSD at least until Aplha 5, I tried to disable TSO but it still
>> wouldn't work.
> 
> By looking at relevant commits in netfront, could you try to revert
> r251297 and see if that solves the problem? Also, doing a bisect of the
> commits in netfront would be very helpful in order to identify the issue.

Ping? Any news on this?

Roger.



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