Date: Fri, 06 Jan 2017 09:14:27 -0800 From: Matthew Macy <mmacy@nextbsd.org> To: "Jonathan Anderson" <jonathan@FreeBSD.org> Cc: "" <markj@freebsd.org>, "" <alc@freebsd.org>, "freebsd-current Current" <freebsd-current@freebsd.org> Subject: Re: PQ_LAUNDRY: unexpected behaviour Message-ID: <15974c6426d.12945df5e62589.5931208946643250381@nextbsd.org> In-Reply-To: <74A6C6D0-90A4-4DB2-8D89-5D2B1E495F88@FreeBSD.org> References: <CAMGEAwBknRjecXFyyFGWFQtstX1OiOUvQoVsb9RXj7rmMQ6dDA@mail.gmail.com> <1596d0f6d6d.1266583c3319360.3590554896761456790@nextbsd.org> <74A6C6D0-90A4-4DB2-8D89-5D2B1E495F88@FreeBSD.org>
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> > Please try the drm-next branch now. Up until very recently, the > > shrinkers responsible for culling ttm/gem allocations were never run. > > I've now implemented the shrinker, but it's driven from vm_lowmem, so > > you'll probably still see what looks like a leak until you hit low > > memory conditions. The shrinker should probably be run from > > uma_timeout, but there isn't an eventhandler for that and I haven't > > looked any further. > > > > -M > > Hi, > > I am now testing the `drm-next` branch, but I'm finding it crashes much > more frequently (a la > https://github.com/FreeBSDDesktop/freebsd-base-graphics/issues/96) than > `drm-next-4.7`. While the 4.7 branch would sometimes only last a few > minutes, it would sometimes run for a day or more. On `drm-next`, > however, I think I'm yet to have 20 minutes of uptime. So, I haven't run > into the memory shrinker yet because I haven't had enough uptime to use > lots of memory. :) I will continue testing... any specific things I > ought to be doing? > I just did the merge and it's using a relatively untested new KPI so regressions aren't too surprising I'm afraid. #96 is more or less content free in terms of providing useful information. Getting a core + backtrace would be a lot more helpful. See the repo's wiki for details on improving your odds of getting a core. -M
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