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Subject: Re: dmar, dma_pool, etc
To: Tycho Nightingale <tychon@freebsd.org>
Cc: Johannes Lundberg <johalun@FreeBSD.org>,
 "freebsd-x11@freebsd.org" <freebsd-x11@freebsd.org>
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From: Niclas Zeising <zeising@freebsd.org>
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Date: Mon, 29 Apr 2019 20:27:19 +0200
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On 2019-04-29 18:00, Tycho Nightingale wrote:
>> On Apr 29, 2019, at 11:06 AM, Niclas Zeising <zeising@FreeBSD.org> wrote:
>>
>> As a side note, I can readily reproduce the hang on a spare laptop, please let me know if I can help in testing or diagnosing in any way.
> 
> 
> If you can readily reproduce the hang, since there are 2 halves that comprised the fix (the DMA pool and non-pool mappings) it would be instructive to try reverting either dmapool.h or dma-mapping.h independently to see if that helps.
> 

Hi!
I will test this and report back.  Thank you!
Regards
-- 
Niclas