From: Richard Miller <9fans@hamnavoe.com>
To: 9fans@9fans.net
Subject: Re: [9fans] any updates on go for plan9/arm?
Date: Thu, 31 Dec 2015 11:57:36 +0000 [thread overview]
Message-ID: <9ed943cac2b126778cf7fbccc4d6d948@hamnavoe.com> (raw)
In-Reply-To: <327e2f1c17187c02a3cc24639321b9e2@proxima.alt.za>
> Is the coherency problem documented anywhere? I appreciate I ought to
> know the answer, but I don't own a Pi and have not given this as much
> attention as I believe I ought to.
The kernel in /n/sources/contrib/miller/9/bcm supports multicore on the
Raspberry Pi 2, but has an elusive "one last bug" which I suspect has to
do with cache or page table coherency. The symptom is very infrequent
memory corruption under heavy load, and the go test suite with *ncpu=4
occasionally triggers it.
next prev parent reply other threads:[~2015-12-31 11:57 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-12-31 8:39 Skip Tavakkolian
2015-12-31 8:53 ` lucio
2015-12-31 10:33 ` David du Colombier
2015-12-31 10:40 ` lucio
2015-12-31 11:57 ` Richard Miller [this message]
2015-12-31 14:35 ` Charles Forsyth
2015-12-31 16:36 ` lucio
2015-12-31 19:03 ` Skip Tavakkolian
2016-01-01 0:31 ` David du Colombier
2016-01-01 4:35 ` lucio
2016-01-01 4:53 ` minux
2016-01-01 5:39 ` lucio
2018-02-12 6:08 ` Conor Williams
2015-12-31 11:03 ` Richard Miller
2015-12-31 13:08 ` David du Colombier
2015-12-31 13:20 ` David du Colombier
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