From nobody Tue Dec 28 00:05:56 2021 X-Original-To: x11@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 284F31912CF1 for ; Tue, 28 Dec 2021 00:05:58 +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 "R3" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 4JNFDj74Jhz3Fq4 for ; Tue, 28 Dec 2021 00:05:57 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) 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 D42CE275B4 for ; Tue, 28 Dec 2021 00:05:57 +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 1BS05vuS083472 for ; Tue, 28 Dec 2021 00:05:57 GMT (envelope-from bugzilla-noreply@freebsd.org) Received: (from www@localhost) by kenobi.freebsd.org (8.15.2/8.15.2/Submit) id 1BS05vKJ083471 for x11@FreeBSD.org; Tue, 28 Dec 2021 00:05:57 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: x11@FreeBSD.org Subject: [Bug 237544] graphics/drm-fbsd12.0-kmod: panic on 12-STABLE with Radeon HD 7450 (but not with drm-fbsd11.2-kmod) Date: Tue, 28 Dec 2021 00:05:56 +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: 12.0-STABLE X-Bugzilla-Keywords: crash, needs-qa X-Bugzilla-Severity: Affects Only Me X-Bugzilla-Who: noisetube@gmail.com X-Bugzilla-Status: Closed X-Bugzilla-Resolution: Overcome By Events X-Bugzilla-Priority: --- X-Bugzilla-Assigned-To: x11@FreeBSD.org X-Bugzilla-Flags: X-Bugzilla-Changed-Fields: cc 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: X11 List-Archive: https://lists.freebsd.org/archives/freebsd-x11 List-Help: List-Post: List-Subscribe: List-Unsubscribe: Sender: owner-freebsd-x11@freebsd.org X-BeenThere: freebsd-x11@freebsd.org MIME-Version: 1.0 ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=freebsd.org; s=dkim; t=1640649958; 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=ClfBeC3PYvPaXOle6eoGoyTy78hcEO8bezRpyreS83U=; b=GQnV/lbyuP7FtwqsH/6nXeCW5jEbRB3oq7Cw8qy1qqzKzrDKQk2gd/zK2VxtntfCx+422C +BqN1pScIyqe+EioDfXUfpXA2N1XBDpg67RgKMcDfUJlRCNDtJywphHrymMKZ+pqn62+o5 C9lq+2/5/KBNzJfHUD6W1Kd/34MJfmVTSw4u3wAtiz6eDw9YfcVfv0SoqAReJgn22rv0NP nkFDJfcp1+MB85fUBJ3C14Xa3Ol1AhWy0QPvwKkMZ6OADi5ql0Tms7N68oh2+WPLoxTGhf 1K9yPEygvhKTo4MqeeS08SbEBa/QRO/k2dNihxzd3hL8bD02iDRvrnVFRmGQmw== ARC-Seal: i=1; s=dkim; d=freebsd.org; t=1640649958; a=rsa-sha256; cv=none; b=jOzWjId5vNlw2dtWiPEHl0CcWoEYQ24qrlwa8S2yoSResg8wFU7XO9DhOVRF7SN1UKbLk6 D9dpPfSXFWbsgDi9enL+KteKKsn8PeD9cFjy3NmBZGeG9l8jEcvHlACPCaAmzs8kxgKg5E o8me6VlEEturud1ArmWx26lYlnuOBojsy9Gl7ycGFllQxL4m4x9UUz6sTFFIGrQe9jbw97 CGoubU/J7vlcT5G7lVEjGNexgG1twXH70Tlogt599s4b73ybFIuPaInOvqio33GjVDr7uP FF1yuL7ecaG/Jmvx45YrNWYB5hrOGo+KbI7U5+UoE688eyjLbcoP86f2h6gfvg== ARC-Authentication-Results: i=1; mx1.freebsd.org; none X-ThisMailContainsUnwantedMimeParts: N https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D237544 Bill Paul changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |noisetube@gmail.com --- Comment #6 from Bill Paul --- Unfortunately, this bug is still present, even using FreeBSD 12.3-RELEASE. Note that I have observed it with several Radeon cards, so it doesn't appear specific to a particular card. The same problem does not happen with the In= tel i915kms.ko driver from the same package. Based on the hint here, I created my own drm-fbsd11.2-kmod port (the origin= al has been deleted from the repo as obsolete) and massaged it a bit to compil= e on FreeBSD 12.3, and that version works without crashing. I suspect there is a locking problem somewhere in the drm or ttm modules in= the newer code. Sadly, nobody seems to care enough to fix it. (And I don't understand the code well enough to fix it myself. The differences between t= he 4.11 and 4.16 versions of the driver are substantial.) --=20 You are receiving this mail because: You are the assignee for the bug.=