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26 Jan 2021 16:21:42 +0100 Received: from localhost (localhost [127.0.0.1]) by kalimero.tijl.coosemans.org (8.16.1/8.16.1) with ESMTP id 10QFLeBf029481; Tue, 26 Jan 2021 16:21:40 +0100 (CET) (envelope-from tijl@FreeBSD.org) Date: Tue, 26 Jan 2021 16:21:38 +0100 From: =?UTF-8?B?VMSzbA==?= Coosemans To: Emmanuel Vadot Cc: Alexey Dokuchaev , Robert Huff , Niclas Zeising , current@freebsd.org, x11@freebsd.org Subject: Re: loading drm crashes system Message-ID: <20210126162138.25885562@FreeBSD.org> In-Reply-To: <20210126134245.e2aca7ed6061505ff4a3cedc@bidouilliste.com> References: <24590.137.690675.515036@jerusalem.litteratus.org> <68acb1a8-fcf8-a065-70d5-061669e2f70b@daemonic.se> <24591.35500.33066.12845@jerusalem.litteratus.org> <20210126070211.GB43439@FreeBSD.org> <20210126134245.e2aca7ed6061505ff4a3cedc@bidouilliste.com> MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit X-Rspamd-Queue-Id: 4DQ9ST00tTz4XHg X-Spamd-Bar: ---- Authentication-Results: mx1.freebsd.org; none X-Spamd-Result: default: False [-4.00 / 15.00]; TAGGED_RCPT(0.00)[freebsd]; REPLY(-4.00)[] X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: Discussions about the use of FreeBSD-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 26 Jan 2021 15:21:45 -0000 On Tue, 26 Jan 2021 13:42:45 +0100 Emmanuel Vadot wrote: > On Tue, 26 Jan 2021 07:02:11 +0000 > Alexey Dokuchaev wrote: >> On Mon, Jan 25, 2021 at 10:21:16PM -0500, Robert Huff wrote: >>> Niclas Zeising asks: >>>> When did it stop working? >>> >>> September ... I _think_. >> >> Yeah, that sounds about right. >> >> There are known issues with Radeon cards, they were quite well supported >> a year ago, then something got broken. I've promised to bisect this and >> find the cause, but there were several syscall-related changes in -CURRENT >> though the course of the last year, so bisecting just the kernel is not >> enough (machine won't get to login prompt if the userland does not match), >> which cripples the process. >> >> I still intend to take this quest, just not sure when. :( > > So back in November I applied a few commits from tijl@ related to > radeon and i386 (added to cc) : > https://github.com/freebsd/drm-kmod/commits/5.4-lts?author=tijl@coosemans.org > > For me this fixed radeon so that gives some timeline if someone with > non working hardware wants to bisect. > I know that bisecting drm-kmod is somewhat hard as you always need > matching kernel code when we update it to use some new functionality in > base linuxkpi but there is nothing that I can do about it. > It might work and be quicker to only bisect the kernel with a > stable/12 userland (no need to recompile) so I would start by testing a > kernel from early november and same date for drm-kmod. > > Tijl since you also reported a build failure a few days/weeks ago for > radeon can you report if your radeon card works ? (And which one it is). My card works (14.0-CURRENT from last Sunday) but it is an old radeon 9700 from 2004 so it doesn't have any fancy modern features and uses only a small part of the radeon driver.