From owner-freebsd-current@freebsd.org Sun Aug 16 17:20:06 2020 Return-Path: Delivered-To: freebsd-current@mailman.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.nyi.freebsd.org (Postfix) with ESMTP id 29AA43C19A3 for ; Sun, 16 Aug 2020 17:20:06 +0000 (UTC) (envelope-from hps@selasky.org) Received: from mail.turbocat.net (turbocat.net [88.99.82.50]) (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 mx1.freebsd.org (Postfix) with ESMTPS id 4BV3pF17bxz4Zh6 for ; Sun, 16 Aug 2020 17:20:04 +0000 (UTC) (envelope-from hps@selasky.org) Received: from hps2020.home.selasky.org (unknown [178.17.145.105]) (using TLSv1.3 with cipher TLS_AES_128_GCM_SHA256 (128/128 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by mail.turbocat.net (Postfix) with ESMTPSA id 752172606EA; Sun, 16 Aug 2020 19:19:57 +0200 (CEST) Subject: Re: Kernel crash during video transcoding To: Alexandre Levy Cc: freebsd-current@freebsd.org References: <13793020-1bde-b13f-65e3-909e27d876ad@selasky.org> <4e9d9a89-4883-1f1c-c796-e5925fd171cc@selasky.org> <51a2fe4f-5a3e-8d24-19e2-3cdaa8378015@selasky.org> From: Hans Petter Selasky Message-ID: <5fe820c0-69af-8c41-69d6-a3c33ed55e2e@selasky.org> Date: Sun, 16 Aug 2020 19:19:34 +0200 User-Agent: Mozilla/5.0 (X11; FreeBSD amd64; rv:68.0) Gecko/20100101 Thunderbird/68.10.0 MIME-Version: 1.0 In-Reply-To: Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: en-US Content-Transfer-Encoding: 7bit ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=freebsd.org; s=dkim; t=1597598405; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=Q1Z5wN0ZgVp2v4etw8weTDW++Jogi3/fBfn5kXskagI=; b=rn3UYm2zFCJ81o/OTK/dVZHcAhjP58tMaabHNoBDH0PjBZhDCxXGtr+BckiQoKD/+mW+yb LfTK5WLOFY8kPJrz9Jn8q8KlDQx1G2qCqMmC6HnUUgm5ZbmwJvk8dFNamwaJOrrShneZlU I83Ri5pWgmiPFNjabnpeoSjMiPQtFERj+nHsg3dtW2QG+sYujQ6EThuZZajvOwy2XTSEP5 O69VJ0D4YjkRoy4wHv7EotEjTkSNVNTVUTKBMjcysBJq1aWxmOY/oXmhth3Gp44hAodTpO CnFJs3aZ8uUf3sjMSfNsLBff9DNFu5XThd1fX0qu3XbUNMOGmUgJBkP+AKX+Wg== ARC-Seal: i=1; s=dkim; d=freebsd.org; t=1597598405; a=rsa-sha256; cv=none; b=ShWuJ9xPnK4ob7zR/8mcXoa+AoiCsgS11R0Ku/vTAzA0nb/MGs2VjEFXuf5t+SI5PhakWX Bwvge1x03EonGHCL0sjH8ddC2tOGLzK2QcsfzyJVqiHKaFLmeRMJS0wQykBPHPUq6P7s5F qMe5JKfH42AlhYBNu4MHSoyjpXqURdTl+dUlgIeN8PsoHIf3FXat3mM6hwItHq76PIs7cg Svzh4SFEfI4b0SMe++oY3cfozTlF5+MizNV+TJCZKhLkKI9G3duPBffKEtmDNy691LcEQc w0BqR8kPCKXgOCTFW0QgIvUm+gLKULga1/R6IpqsUSE+OT+P0GhmYew34PzxYQ== ARC-Authentication-Results: i=1; mx1.freebsd.org; dkim=none; spf=pass (mx1.freebsd.org: domain of hps@selasky.org designates 88.99.82.50 as permitted sender) smtp.mailfrom=hps@selasky.org X-Rspamd-Queue-Id: 4BV3pF17bxz4Zh6 X-Spamd-Bar: -- X-Spamd-Result: default: False [-2.74 / 15.00]; RCVD_VIA_SMTP_AUTH(0.00)[]; ARC_NA(0.00)[]; MID_RHS_MATCH_FROM(0.00)[]; FROM_HAS_DN(0.00)[]; TO_DN_SOME(0.00)[]; R_SPF_ALLOW(-0.20)[+a:mail.turbocat.net]; NEURAL_HAM_LONG(-0.98)[-0.975]; MIME_GOOD(-0.10)[text/plain]; ARC_SIGNED(0.00)[i=1]; DMARC_NA(0.00)[selasky.org]; TO_MATCH_ENVRCPT_SOME(0.00)[]; NEURAL_HAM_SHORT(-0.44)[-0.438]; RCPT_COUNT_TWO(0.00)[2]; NEURAL_HAM_MEDIUM(-1.03)[-1.028]; FREEMAIL_TO(0.00)[gmail.com]; FROM_EQ_ENVFROM(0.00)[]; R_DKIM_NA(0.00)[]; MIME_TRACE(0.00)[0:+]; ASN(0.00)[asn:24940, ipnet:88.99.0.0/16, country:DE]; RCVD_COUNT_TWO(0.00)[2]; RCVD_TLS_ALL(0.00)[] X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.33 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: Sun, 16 Aug 2020 17:20:06 -0000 On 2020-08-16 17:28, Alexandre Levy wrote: > Now at intel_freebsd.c:193 (frame #17) the driver calls > vm_page_busy_acquire(m, VM_ALLOC_WAITFAIL). 'm' is the page grabbed from > vm_obj of the calling frame. Can you check if "m" is NULL at this point? --HPS