From owner-freebsd-current@FreeBSD.ORG Thu Jun 4 21:42:37 2009 Return-Path: Delivered-To: freebsd-current@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id B0B011065670; Thu, 4 Jun 2009 21:42:37 +0000 (UTC) (envelope-from naylor.b.david@gmail.com) Received: from mail-fx0-f211.google.com (mail-fx0-f211.google.com [209.85.220.211]) by mx1.freebsd.org (Postfix) with ESMTP id 15BF28FC18; Thu, 4 Jun 2009 21:42:36 +0000 (UTC) (envelope-from naylor.b.david@gmail.com) Received: by fxm7 with SMTP id 7so685927fxm.43 for ; Thu, 04 Jun 2009 14:42:36 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:received:received:from:organization:to:subject :date:user-agent:cc:mime-version:message-id:content-type :content-transfer-encoding; bh=w1XxrWFfKQt8EEojcG9gvcuDTuWrbfM9Evso/ZwoBfU=; b=fPKI+EhrCpPFI04MYhIZsJpLlH3aRj5xcnArgyXrH4NKGbs5jTwZPWF3sdPNcds7CO v19hqd7rRAHo+oXxAYpRBRzUN40+eAzw/yMQEuK3vdgQiWM4hABQxJTRrUWRFJbiHRGQ s8cMswx4YqcplmlBU/lXcBBzJFcvbVHb+RDKo= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=from:organization:to:subject:date:user-agent:cc:mime-version :message-id:content-type:content-transfer-encoding; b=uHmPRyCArabvNb+wZCvSQ1BlpWTBbdGq+AFk5kk4Y2+VmbxHzJBn3Ks3CdiLPzkCix 0Hk/n89UKsJnVzmlpfI7/KhAAziR4yPztIHw6Wqh9UHy55lBp2GpqIQsLFc4URVQEOd+ 4MtVuFCQ+qfAvUcHlZUKjW30z24hzSuBmtMkQ= Received: by 10.86.68.1 with SMTP id q1mr3131689fga.10.1244150448819; Thu, 04 Jun 2009 14:20:48 -0700 (PDT) Received: from dragonmini.dg ([196.34.241.123]) by mx.google.com with ESMTPS id 12sm252077fgg.15.2009.06.04.14.20.34 (version=SSLv3 cipher=RC4-MD5); Thu, 04 Jun 2009 14:20:48 -0700 (PDT) From: David Naylor Organization: Private To: freebsd-current@freebsd.org Date: Thu, 4 Jun 2009 23:21:38 +0200 User-Agent: KMail/1.9.10 MIME-Version: 1.0 Message-Id: <200906042321.44624.naylor.b.david@gmail.com> Content-Type: multipart/signed; boundary="nextPart4770535.LtA2o8KX1g"; protocol="application/pgp-signature"; micalg=pgp-sha1 Content-Transfer-Encoding: 7bit X-Mailman-Approved-At: Thu, 04 Jun 2009 21:57:48 +0000 Cc: kib@freebsd.org Subject: __getcwd panics [lock held] (r193174, r193186) X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.5 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: Thu, 04 Jun 2009 21:42:37 -0000 --nextPart4770535.LtA2o8KX1g Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable Content-Disposition: inline Hi, A recent change (r193174, r193186) in vfs_cache has been causing __getcwd t= o=20 panic the system. The panic appears to trigger when I try install lang/ezm= 3=20 (with other things also happening). =2D- hand copied --- System call _getcwd returning with the following locks held: shared rw Name Cache (Name Cache) r =3D 0 (0xc0eced7c) locked=20 @ /usr/src/sys/kern/vfs_cache.c:1104 panic: witness_warn =2D-- above reproducible --- cpuid =3D 2 KDB: enter: panic [thread pid 23322 tid 100190 ] Stopped at kdb_enter+0x3a: movl $0, kdb_why db> cont Uptime 20m35s Physical memory: 3055 MB Dumping 271 MB: 256 240 224panic: bufwrite: buffer is not busy??? cpuid =3D 0 KDB: enter: panic [thread pid 25 tid 100055 ] Stopped at kdb_enter+0x3a: movl $0, kdb_why db> cont Uptime: 20m36s Automatic reboot in 15 seconds - press a key on the console to abort Rebooting... cpu_reset: Stopping other CPUs =2D-- systems hangs here, does nothing else --- =2D-- hard reset --- I reverst the change (and r193175) and the panic 'disappeared'. =20 Willing to test patches. =20 Regards, David --nextPart4770535.LtA2o8KX1g Content-Type: application/pgp-signature; name=signature.asc Content-Description: This is a digitally signed message part. -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.9 (FreeBSD) iEYEABECAAYFAkooOugACgkQUaaFgP9pFrKvzQCaAxe+CLCNABQSEzgnBOZTJjWD p/kAn1vEc4RuK9W8Twya9Dv94ce5mgrY =KxKp -----END PGP SIGNATURE----- --nextPart4770535.LtA2o8KX1g--