From owner-freebsd-current@FreeBSD.ORG Mon Jun 23 04:28:26 2014 Return-Path: Delivered-To: current@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) (using TLSv1 with cipher ADH-AES256-SHA (256/256 bits)) (No client certificate requested) by hub.freebsd.org (Postfix) with ESMTPS id DFD806A5 for ; Mon, 23 Jun 2014 04:28:25 +0000 (UTC) Received: from mail-lb0-f174.google.com (mail-lb0-f174.google.com [209.85.217.174]) (using TLSv1 with cipher ECDHE-RSA-RC4-SHA (128/128 bits)) (Client CN "smtp.gmail.com", Issuer "Google Internet Authority G2" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 6321E29E1 for ; Mon, 23 Jun 2014 04:28:24 +0000 (UTC) Received: by mail-lb0-f174.google.com with SMTP id u10so3781718lbd.33 for ; Sun, 22 Jun 2014 21:28:16 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:message-id:date:from:user-agent:mime-version:to :cc:subject:references:in-reply-to:content-type; bh=xsA6D2yhc9N6zviG6XkIiCDt5OdHv3Tr2muhJ3+KSp0=; b=TVF+pk4tMN/+IynfBPL3I1HpCdqCDyW311fObkjP/Jpa5NxnGxmKxflS1Yapl8i4Qo XeHedeUJFpfUKf0WHnHENvlubS6OOcrAH9nMY/+P1EFc5TeF6EDNGkuZ1V/sOBT87QRZ H6xl1nSCOIQdxWZMqCppyTiGwhSQXRjCv/4EnNvTvx4u2rZr3YeiK0gUViHjqT2AQvsC knFkDvvWivBPsXsRlTXsNd5+Q3seY+uIljo158wtgCCLSZYJuTDF8c1HbRTED9VtkCxg k3YrUshZpmXHjbBKoxw9lUEBWmi1vdNV2/w6CX+47r5fWn/a9JGInKr0cCc6Z7VQKjiF +Oog== X-Gm-Message-State: ALoCoQmR+5oYGN5Nzk9t63uYbC203IEZjEy9qbSdP1jXdgbqkhKDj833UAMIEiZbw/T0anK3ZvV9 X-Received: by 10.152.87.102 with SMTP id w6mr496496laz.52.1403496210352; Sun, 22 Jun 2014 21:03:30 -0700 (PDT) Received: from [192.168.1.2] ([89.169.173.68]) by mx.google.com with ESMTPSA id o1sm12727615lbw.27.2014.06.22.21.03.29 for (version=TLSv1.2 cipher=ECDHE-RSA-RC4-SHA bits=128/128); Sun, 22 Jun 2014 21:03:29 -0700 (PDT) Message-ID: <53A7A708.3010204@freebsd.org> Date: Mon, 23 Jun 2014 08:03:20 +0400 From: Andrey Chernov User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:24.0) Gecko/20100101 Thunderbird/24.6.0 MIME-Version: 1.0 To: Alexander Kabaev Subject: Re: Latest -current panic in uaudio_detach() / bus_dmamem_free() References: <53A78B24.6050805@freebsd.org> <20140622224632.31b4ce3b@kan> In-Reply-To: <20140622224632.31b4ce3b@kan> Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="V3J2JxX8JFQW6djJoHFdQbv4F4BtpFwV9" Cc: current@FreeBSD.org X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.18 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: Mon, 23 Jun 2014 04:28:26 -0000 This is an OpenPGP/MIME signed message (RFC 4880 and 3156) --V3J2JxX8JFQW6djJoHFdQbv4F4BtpFwV9 Content-Type: text/plain; charset=KOI8-R Content-Transfer-Encoding: quoted-printable On 23.06.2014 6:46, Alexander Kabaev wrote: > Please provide us with the information on the actual audio hardware > you are using, preferably in form of a dmesg output.=20 uaudio0: on usbus3 uaudio0: No playback. uaudio0: Record: 16000 Hz, 1 ch, 16-bit S-LE PCM format, 2x8ms buffer. uaudio0: No MIDI sequencer. pcm7: on uaudio0 uaudio0: No HID volume keys found. Thanx, after backing out the patch below this panic is gone. Probably eve= n=20 additional b->dmatag NULL check is needed for bus_dmamap_unload() too. > This revision is > your culpit: > http://svnweb.freebsd.org/changeset/base/267581 and I have strong > suspicion that restoring the NULL check on dmatag in the chunk below > will cure your crash. >=20 > -- Modified: head/sys/dev/sound/pcm/buffer.c > =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D > --- head/sys/dev/sound/pcm/buffer.c Tue Jun 17 14:47:49 > 2014 (r267580) +++ head/sys/dev/sound/pcm/buffer.c Tue > Jun 17 16:07:57 2014 (r267581) @@ -139,10 +139,9 @@ > sndbuf_free(struct snd_dbuf *b)=20 > if (b->buf) { > if (b->flags & SNDBUF_F_MANAGED) { > - if (b->dmamap) > + if (b->buf_addr) > bus_dmamap_unload(b->dmatag, > b->dmamap); > - if (b->dmatag) > - bus_dmamem_free(b->dmatag, b->buf, > b->dmamap); > + bus_dmamem_free(b->dmatag, b->buf, b->dmamap); > } else > free(b->buf, M_DEVBUF); > } >=20 --=20 http://ache.vniz.net/ --V3J2JxX8JFQW6djJoHFdQbv4F4BtpFwV9 Content-Type: application/pgp-signature; name="signature.asc" Content-Description: OpenPGP digital signature Content-Disposition: attachment; filename="signature.asc" -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iEYEARECAAYFAlOnpxAACgkQVg5YK5ZEdN0BpwCgmqV69OJT9Vi12XqLrdVJXK2V teYAoKH6buCIgDEuziJr8VdtFp4E6LRU =QtRn -----END PGP SIGNATURE----- --V3J2JxX8JFQW6djJoHFdQbv4F4BtpFwV9--