Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751778AbXAOCCX (ORCPT ); Sun, 14 Jan 2007 21:02:23 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751779AbXAOCCX (ORCPT ); Sun, 14 Jan 2007 21:02:23 -0500 Received: from iucha.net ([209.98.146.184]:44790 "EHLO mail.iucha.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751778AbXAOCCW (ORCPT ); Sun, 14 Jan 2007 21:02:22 -0500 Date: Sun, 14 Jan 2007 20:02:21 -0600 To: Jiri Kosina Cc: Linux Kernel Mailing List , linux-usb-devel@lists.sourceforge.net, Adrian Bunk , Alan Stern , Trond Myklebust Subject: Re: heavy nfs[4]] causes fs badness Was: 2.6.20-rc4: known unfixed regressions (v2) Message-ID: <20070115020221.GC6053@iucha.net> References: <20070109214431.GH24369@iucha.net> <20070114225701.GA6053@iucha.net> <20070114235816.GB6053@iucha.net> MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="m51xatjYGsM+13rf" Content-Disposition: inline In-Reply-To: X-GPG-Key: http://iucha.net/florin_iucha.gpg X-GPG-Fingerprint: 5E59 C2E7 941E B592 3BA4 7DCF 343D 2B14 2376 6F5B User-Agent: Mutt/1.5.13 (2006-08-11) From: florin@iucha.net (Florin Iucha) Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 3197 Lines: 93 --m51xatjYGsM+13rf Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable Jiri and Trond, On Mon, Jan 15, 2007 at 01:14:09AM +0100, Jiri Kosina wrote: > On Sun, 14 Jan 2007, Florin Iucha wrote: >=20 > > All the testing was done via a ssh into the workstation. The console= =20 > > was left as booted into, with the gdm running. The remote nfs4=20 > > directory was mounted on "/mnt". After copying the 60+ GB and testing= =20 > > that the keyboard was still functioning, I did not reboot but stayed in= =20 > > the same kernel and pulled the latest git then started bisecting. =20 >=20 > Hi Florin, >=20 > thanks a lot for the testing. Just to verify - what kernel is 'the same= =20 > kernel' mentioned above? (just to isolate whether the problem is really= =20 > somewhere between 2.6.19 and 2.6.20-rc2, as you stated in previous posts,= =20 > or the situation has changed). This happened with 2.6.19. It worked last time, but I wanted to test again, to make sure. This time, it bombed, but half an hour after the=20 transfer finished. > > After recompiling, I moved over to the workstation to reboot it, but th= e=20 > > keyboard was not functioning ;( >=20 > So this time the hang occured when the system was idle, not during the=20 > transfers, right? Yes it was idle. Immediately after the transfer finished, the keyboard was still functioning. It "hang" minutes later, after the first bisected kernel was compiled and installed. > > I ran "lsusb" and it displayed all the devices. "dmesg" did not show > > any oops, anything for that matter. I have unplugged the keyboard and > > run "lsusb" again, but it hang. I ran "ls /mnt" and it hang as well. > > Stracing "lsusb" showed it hang (entered the kernel) at opening the dev= ice > > that used to be the keyboard. Stracing "ls /mnt" showed that it > > hang at "stat(/mnt)". Both processes were in "D" state. "ls /root" > > worked without problem, so it appears that crossing mountpoints causes > > some hang in the kernel. >=20 > Could you please do alt-sysrq-t (or "echo t > /proc/sysrq-trigger" via=20 > ssh, when your keyboard is dead) to see the calltraces of the processes= =20 > which are stuck inside kernel? >=20 > You will probably get a lot of output after the sysrq, so please either= =20 > put it somewhere on the web if possible, or just extract the interesting= =20 > processes out of it (mainly the ones which are stuck). Will do. florin --=20 Bruce Schneier expects the Spanish Inquisition. http://geekz.co.uk/schneierfacts/fact/163 --m51xatjYGsM+13rf Content-Type: application/pgp-signature; name="signature.asc" Content-Description: Digital signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.6 (GNU/Linux) iD8DBQFFquCtND0rFCN2b1sRApWgAJkB4zfUgar+51iBoAEgWRaAv2hX4wCdEGCb d2OsmV7GxSBTjF1WvksFfpk= =fO6R -----END PGP SIGNATURE----- --m51xatjYGsM+13rf-- - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/