From owner-freebsd-hackers@freebsd.org Sun Dec 29 22:05:08 2019 Return-Path: Delivered-To: freebsd-hackers@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 703061EBED5; Sun, 29 Dec 2019 22:05:08 +0000 (UTC) (envelope-from hps@selasky.org) Received: from mail.turbocat.net (turbocat.net [IPv6:2a01:4f8:c17:6c4b::2]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) server-signature RSA-PSS (4096 bits)) (Client did not present a certificate) by mx1.freebsd.org (Postfix) with ESMTPS id 47mF3l3Dbgz4B17; Sun, 29 Dec 2019 22:05:07 +0000 (UTC) (envelope-from hps@selasky.org) Received: from hps2020.home.selasky.org (unknown [62.141.129.235]) (using TLSv1.3 with cipher TLS_AES_128_GCM_SHA256 (128/128 bits)) (No client certificate requested) by mail.turbocat.net (Postfix) with ESMTPSA id D60762605BE; Sun, 29 Dec 2019 23:04:58 +0100 (CET) Subject: Re: head -r356109 on 32-bit powerpc (old PowerMac): Memory modified after free during late-stage of boot, most recently used by bus-sc To: Mark Millard , FreeBSD Current , freebsd-hackers@freebsd.org, FreeBSD PowerPC ML References: <28FD8632-AC91-40D7-B6E7-36E304D37794.ref@yahoo.com> <28FD8632-AC91-40D7-B6E7-36E304D37794@yahoo.com> From: Hans Petter Selasky Message-ID: <42bf7ff5-1279-28cb-5b4b-a0335e819a3a@selasky.org> Date: Sun, 29 Dec 2019 23:04:55 +0100 User-Agent: Mozilla/5.0 (X11; FreeBSD amd64; rv:68.0) Gecko/20100101 Thunderbird/68.3.1 MIME-Version: 1.0 In-Reply-To: <28FD8632-AC91-40D7-B6E7-36E304D37794@yahoo.com> Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: en-US Content-Transfer-Encoding: 7bit X-Rspamd-Queue-Id: 47mF3l3Dbgz4B17 X-Spamd-Bar: ---- Authentication-Results: mx1.freebsd.org; dkim=none; dmarc=none; spf=pass (mx1.freebsd.org: domain of hps@selasky.org designates 2a01:4f8:c17:6c4b::2 as permitted sender) smtp.mailfrom=hps@selasky.org X-Spamd-Result: default: False [-4.94 / 15.00]; ARC_NA(0.00)[]; RCVD_VIA_SMTP_AUTH(0.00)[]; NEURAL_HAM_MEDIUM(-1.00)[-1.000,0]; FROM_HAS_DN(0.00)[]; RCPT_COUNT_THREE(0.00)[4]; R_SPF_ALLOW(-0.20)[+a:mail.turbocat.net]; NEURAL_HAM_LONG(-1.00)[-1.000,0]; MIME_GOOD(-0.10)[text/plain]; DMARC_NA(0.00)[selasky.org]; TO_DN_SOME(0.00)[]; TO_MATCH_ENVRCPT_SOME(0.00)[]; IP_SCORE(-2.64)[ip: (-9.19), ipnet: 2a01:4f8::/29(-2.43), asn: 24940(-1.54), country: DE(-0.02)]; FREEMAIL_TO(0.00)[yahoo.com]; FROM_EQ_ENVFROM(0.00)[]; R_DKIM_NA(0.00)[]; MIME_TRACE(0.00)[0:+]; ASN(0.00)[asn:24940, ipnet:2a01:4f8::/29, country:DE]; MID_RHS_MATCH_FROM(0.00)[]; RCVD_TLS_ALL(0.00)[]; RCVD_COUNT_TWO(0.00)[2] X-BeenThere: freebsd-hackers@freebsd.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Technical Discussions relating to FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sun, 29 Dec 2019 22:05:08 -0000 On 2019-12-29 22:53, Mark Millard via freebsd-hackers wrote: > 0xd2630510: at uma_zalloc_arg+0x1b4 > 0xd2630540: at malloc+0xfc > 0xd2630580: at alloc_bounce_pages+0x7c > 0xd26305c0: at bus_dmamap_create+0x1e8 Do you know what drivers are using bounce pages? --HPS