Date: Mon, 30 Dec 2013 13:17:50 -0800 From: Adrian Chadd <adrian@freebsd.org> To: dt71@gmx.com Cc: freebsd-current <freebsd-current@freebsd.org>, =?ISO-8859-1?Q?Jean=2DS=E9bastien_P=E9dron?= <dumbbell@freebsd.org> Subject: Re: new Xorg (KMS, etc.) for Radeon 9600 Message-ID: <CAJ-VmokrhMB5MGhPKFw70rFbSCy0EtD0ueaUJQs5OhYR0j=wbg@mail.gmail.com> In-Reply-To: <52B14384.5060102@gmx.com> References: <527F95BE.7080908@gmx.com> <Pine.GSO.4.64.1311101135590.9459@sea.ntplx.net> <527FC05D.8080703@gmx.com> <5283E123.5000305@FreeBSD.org> <20131114113846.4dcb2037@kalimero.tijl.coosemans.org> <52858067.2060200@gmx.com> <52AEAD7A.1040205@gmx.com> <52B0C004.9010702@FreeBSD.org> <52B14384.5060102@gmx.com>
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On 17 December 2013 22:41, <dt71@gmx.com> wrote: > Jean-S=E9bastien P=E9dron wrote, On 12/17/2013 22:20: > >> On 16.12.2013 08:36, dt71@gmx.com wrote: >>> >>> Still nobody wants to apply Robert Noland's DRM patch? >> >> >> What problem(s) does this patch fix? > > > It fixes non-deterministic lockups when the (old, drm1) r300 drivers are > used. > > According to John Baldwin [1]: "The drm code is doing a copyin() while > holding a mutex (which is not allowed)." The latest version of the patch > (also the one I used for years) is at [2], linked from [3]. Hm. Well, can we add some lock assertions to the dri code to panic whenever this is done? -a
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