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Re: kern/54486: athn driver panics on arm

The following reply was made to PR kern/54486; it has been noted by GNATS.

From: Rin Okuyama <>
To: Nick Hudson <>, matthew green <>,
	Andreas Gustafsson <>
Cc: Christos Zoulas <>, ""
	<>, "" <>
Subject: Re: kern/54486: athn driver panics on arm
Date: Mon, 26 Aug 2019 16:53:17 +0000

 On 2019/08/25 16:54, Nick Hudson wrote:
 > My focus is elsewhere at the moment, so feel free to apply the workaround=
 I see. I will commit the workaround soon.
 > Perhaps we can compile a handful of drivers with -mno-unaligned-access
 > and not the whole kernel?
 Well, but it is difficult to make sure which components access
 DMA buffers and which do not. I prefer to forbid whole kernel to
 unaligned access. The affect on performance is, anyway, negligibly
 small as far as I can see; some lazy ``benchmark'' of building
 lang/perl shows only 0.1% difference between kernels with and
 without -mno-unaligned-access:
 If there's no objection, I will also send pull-up request for
 netbsd-9 in few days.

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