From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from list by lists.gnu.org with archive (Exim 4.71) id 1VRwOE-0005Pn-Ty for mharc-grub-devel@gnu.org; Thu, 03 Oct 2013 23:49:18 -0400 Received: from eggs.gnu.org ([2001:4830:134:3::10]:34978) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1VRwO6-0005P3-4B for grub-devel@gnu.org; Thu, 03 Oct 2013 23:49:17 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1VRwNy-0002kO-Q8 for grub-devel@gnu.org; Thu, 03 Oct 2013 23:49:10 -0400 Received: from che.mayfirst.org ([209.234.253.108]:53484) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1VRwNy-0002kE-LQ for grub-devel@gnu.org; Thu, 03 Oct 2013 23:49:02 -0400 Received: from [192.168.13.172] (lair.fifthhorseman.net [108.58.6.98]) by che.mayfirst.org (Postfix) with ESMTPSA id 13A1AF983 for ; Thu, 3 Oct 2013 23:48:58 -0400 (EDT) Message-ID: <524E3AAA.501@fifthhorseman.net> Date: Thu, 03 Oct 2013 23:48:58 -0400 From: Daniel Kahn Gillmor User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:17.0) Gecko/20130821 Icedove/17.0.8 MIME-Version: 1.0 To: The development of GNU GRUB Subject: trouble (very slow reads -- disk or controller resets?) with Marvell 88SE92xx PCIe card X-Enigmail-Version: 1.5.1 Content-Type: multipart/signed; micalg=pgp-sha512; protocol="application/pgp-signature"; boundary="----enig2USHWMRMUHIOVSLRODQGU" X-detected-operating-system: by eggs.gnu.org: GNU/Linux 3.x X-Received-From: 209.234.253.108 X-BeenThere: grub-devel@gnu.org X-Mailman-Version: 2.1.14 Precedence: list Reply-To: The development of GNU GRUB List-Id: The development of GNU GRUB List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 04 Oct 2013 03:49:17 -0000 This is an OpenPGP/MIME signed message (RFC 4880 and 3156) ------enig2USHWMRMUHIOVSLRODQGU Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable hi there-- i'm trying to boot a machine with grub-pc 2.00-19 (from debian sid), off of two SATA disks connected to a PCIe controller. The PCIe controller is a "=E2=80=8BSYBA SI-PEX40064", and upon boot it an= nounces itself as: Marvell 88SE92xx Adapter - BIOS Version 1.0.0.1010 PCIe x1 2.5Gbps Mode: PassThru AHCI Disks Information: Port Disk Name Size Speed S0 SATA: WDC WD2003FYYS-02W0B0 2TB 3Gb/s S1 SATA: ST32000644NS 2TB 3Gb/s Both of these disks have grub installed on them, and they hang with just the output "GRUB" on the video console. If i boot grub 2.00-19 from a USB stick, i can get into a grub rescue shell just fine. But when i do "ls" to get a listing of the disks, it pauses for over a minute after printing: (hd0) (hd0,msdos1) (hd1) (hd2) and before giving me back a grub> prompt. after "insmod part_gpt" and another "ls", i get: (hd0) (hd0,msdos1) (hd1) (hd1,gpt3) (hd1,gpt2) (hd1,gpt1) (hd2) and then another long hang. this makes me think that grub is causing the SATA controller to reset itself with every disk read or something, and then grub is waiting for it to come back to life before carrying on. Is this something i can debug better somehow? is there a way to tell grub to be "gentler" with the controller or something to avoid these hang= s? --dkg ------enig2USHWMRMUHIOVSLRODQGU Content-Type: application/pgp-signature; name="signature.asc" Content-Description: OpenPGP digital signature Content-Disposition: attachment; filename="signature.asc" -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.14 (GNU/Linux) Comment: Using GnuPG with Icedove - http://www.enigmail.net/ iQJ8BAEBCgBmBQJSTjqqXxSAAAAAAC4AKGlzc3Vlci1mcHJAbm90YXRpb25zLm9w ZW5wZ3AuZmlmdGhob3JzZW1hbi5uZXRFQjk2OTEyODdBN0FEREUzNzU3RDkxMUVB NTI0MDFCMTFCRkRGQTVDAAoJEKUkAbEb/fpcaa4QANJF8bXEYQdaE76/veZUL0lt l9c7FA0PW1l4IUdfoLHhH6iJesESHzCYXk30/4EdDbLinxuYlTkAhNASQsQVuHau b0hwhPA6BOqKDS1PHYMJ83RN+0zrgoH4QX9oqSyydWivbOIRa3mk9JKJ0Wk0vY4I E5+6HIFNRg06ciGpGySHny4yvZsOPk+imhFrcjLWUZUvTRWvSM+TmWMuZxZACR/s lty/g0EVT14/EUm1PH8UX1wbv4smTNjED/HddCAL1q992JykwSmV+mzJv1Nbnkw1 CZEks6nUF4UamOmAMG4hPurhh3JeeYdbbv3Z+qe5x4i1oe/j0JHSWXwDyCpVGq3P 8e3hfcSv4a1W8WunZHBos4A0U8yyNbU36ixnf0QsF3L4wFn31LPAtyB5rWbo702x xovQG2dgF4vUFjjkmLx/6GHvqYGMFh/38tgYC/R2apAu7AANVyCnpWaQoh80vZ1C WEgtPwEFQwUVd0+pqJCZRbVojTB4hddj3BOjs703wk5+0V7hLsLJBG9C25eWz3Yv mYXSzUSXURNYwKcKY5ygOGr6qZkUqmpx49TUqJZFMksyCjVkuacWID8lfiqqjeIA JeUqyISlq3YXUpfJkhTFB1kTklnt73zESEGA+zgQZzc93tO9pFAtce2Kj8NHKBzL rsgQkxVBJPI34yObJ7A3 =gAud -----END PGP SIGNATURE----- ------enig2USHWMRMUHIOVSLRODQGU--