From nobody Tue Sep 3 13:23:45 2024 X-Original-To: bugs@mlmmj.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mlmmj.nyi.freebsd.org (Postfix) with ESMTP id 4WymXy4JDRz5PW9L for ; Tue, 03 Sep 2024 13:23:46 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from mxrelay.nyi.freebsd.org (mxrelay.nyi.freebsd.org [IPv6:2610:1c1:1:606c::19:3]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256 client-signature RSA-PSS (4096 bits) client-digest SHA256) (Client CN "mxrelay.nyi.freebsd.org", Issuer "R11" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 4WymXy33yZz4fMN for ; Tue, 3 Sep 2024 13:23:46 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) ARC-Seal: i=1; s=dkim; d=freebsd.org; t=1725369826; a=rsa-sha256; cv=none; b=SIBtjQAyc1D8P96CAInduEIv6bwp/wiUpn/p5F5b5pf0m3/B/Hdm9tvSwPydbULY+QvzZj KZjfUJQaIJ+tQ5eJGaTIgsFqCSBDjibYHi05Q9Qc8C0gqeDx6c0ShYo5bCyKejWW7eWUVQ 8VT/7cTltR9Gdl7lXvcrzdk3mQgRQTfGrNfcCmhrCSgvww+pJqnQVTdDcRruD6CW2I/NyQ YINdOSVBNu6ec2RtC3WcMU1V1BXQEfjIWI5KAxXaNdHvzUV0gS/yhFgiuDSO02Ax36Vu1+ Y6+XpudlSVAJdhbQvBwKZMMGYYobmdCA8HNm9S1+mXdWIRLiTRvs4AyUu0Cr1Q== ARC-Authentication-Results: i=1; mx1.freebsd.org; none ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=freebsd.org; s=dkim; t=1725369826; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=jnbvMs7Y3iBQYgsyBH+Dzn/gmDfw6SKu4Z5QmWEnPtg=; b=Uii8j42McM9/wLEH89uIcdu4BEzAP0hrt/i10aridPtmoMSFitkTr4Xvhv1ziIA3OzEDoo lYa6FwC9hPRDgkKSMtAPJ+lxzLjzP2o3pscNdQcyHWSwrMqrMKfgoADQwhqdIbbCRGZXtt p8Npo+aZm94LI/EZYKnmrXnIFfxmHojCUxEpk06Nx5IZcdxBBIZTOs2VSDptlfXkB5Rdka A7aDbtLh2wHZwj1YEMP3KhZXNB5l8AAQzDfhcWiH4uipSC9iDSDL4EdA8xTm1Zkfo5FnnX UQZwz1OT0d0IjBNkNyR6v7ta4jP+ig2MD95VqqtoehJK5bk+k/qgG3fVODRZDQ== Received: from kenobi.freebsd.org (kenobi.freebsd.org [IPv6:2610:1c1:1:606c::50:1d]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (Client did not present a certificate) by mxrelay.nyi.freebsd.org (Postfix) with ESMTPS id 4WymXy2dmlzj2P for ; Tue, 3 Sep 2024 13:23:46 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from kenobi.freebsd.org ([127.0.1.5]) by kenobi.freebsd.org (8.15.2/8.15.2) with ESMTP id 483DNkPN085308 for ; Tue, 3 Sep 2024 13:23:46 GMT (envelope-from bugzilla-noreply@freebsd.org) Received: (from www@localhost) by kenobi.freebsd.org (8.15.2/8.15.2/Submit) id 483DNkDB085301 for bugs@FreeBSD.org; Tue, 3 Sep 2024 13:23:46 GMT (envelope-from bugzilla-noreply@freebsd.org) X-Authentication-Warning: kenobi.freebsd.org: www set sender to bugzilla-noreply@freebsd.org using -f From: bugzilla-noreply@freebsd.org To: bugs@FreeBSD.org Subject: [Bug 276985] crash in LinuxKPI/drm Date: Tue, 03 Sep 2024 13:23:45 +0000 X-Bugzilla-Reason: AssignedTo X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: Base System X-Bugzilla-Component: kern X-Bugzilla-Version: 14.1-RELEASE X-Bugzilla-Keywords: crash X-Bugzilla-Severity: Affects Some People X-Bugzilla-Who: feh@fehcom.de X-Bugzilla-Status: New X-Bugzilla-Resolution: X-Bugzilla-Priority: --- X-Bugzilla-Assigned-To: bugs@FreeBSD.org X-Bugzilla-Flags: mfc-stable14? X-Bugzilla-Changed-Fields: Message-ID: In-Reply-To: References: Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Bugzilla-URL: https://bugs.freebsd.org/bugzilla/ Auto-Submitted: auto-generated List-Id: Bug reports List-Archive: https://lists.freebsd.org/archives/freebsd-bugs List-Help: List-Post: List-Subscribe: List-Unsubscribe: Sender: owner-freebsd-bugs@FreeBSD.org MIME-Version: 1.0 https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D276985 --- Comment #37 from feh@fehcom.de --- (In reply to Olivier Certner from comment #35) I just checked both drm versions (5.15 and 6.1) briefly, but the difference= is significant, so it will be hard to tell whether the new version is the corr= ect solution.=20 AMD needs of course to provide driver for their new GPUs. As said, their development focuses on the Linux kernel. One particular mechanism here is '= rcu' - Ready/Copy/Update. I'm wondering how is is realized under FreeBSD.=20 @Oliver: Is there any whitepaper or so, detailing this, perhaps while reverse-engineering the code base? And regarding: > I wouldn't fly a plane whose code hasn't both been proved correct *and* t= ested. In this sector of the industry, formal proof methods will be applied. Hardw= are redundancy/diversity is also important.=20 We have to thank all volunteers here to come close that quality for an OS y= ou can get for free and running realiably on HW for just $300 (like mine). --eh. --=20 You are receiving this mail because: You are the assignee for the bug.=