Return-path: Received: from xc.sipsolutions.net ([83.246.72.84]:51368 "EHLO sipsolutions.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752151AbYJ0TNw (ORCPT ); Mon, 27 Oct 2008 15:13:52 -0400 Subject: Re: Suspend to RAM regression in 2.6.28-rc2 (bisected) From: Johannes Berg To: "Carlos R. Mafra" Cc: Soeren Sonnenburg , "Rafael J. Wysocki" , linux-kernel@vger.kernel.org, tomas.winkler@intel.com, "John W. Linville" , linux-wireless@vger.kernel.org In-Reply-To: <20081027191118.GA4058@localhost.aei.mpg.de> References: <20081027162054.GA4015@localhost.aei.mpg.de> <200810271832.40717.rjw@sisk.pl> <1225130844.4466.0.camel@localhost> <1225132278.3796.32.camel@johannes.berg> <1225133082.3796.35.camel@johannes.berg> <20081027190011.GA3951@localhost.aei.mpg.de> <1225134195.3796.39.camel@johannes.berg> <20081027191118.GA4058@localhost.aei.mpg.de> Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="=-KMtfDeYdhhrHMcPb16hw" Date: Mon, 27 Oct 2008 20:13:43 +0100 Message-Id: <1225134823.3796.45.camel@johannes.berg> (sfid-20081027_201358_869515_32AB7A7F) Mime-Version: 1.0 Sender: linux-wireless-owner@vger.kernel.org List-ID: --=-KMtfDeYdhhrHMcPb16hw Content-Type: text/plain Content-Transfer-Encoding: quoted-printable On Mon, 2008-10-27 at 20:11 +0100, Carlos R. Mafra wrote: > > Do you get any kernel messages output? If you do, could you put message= s > > into each line of ieee80211_set_disassoc to see where it hangs? >=20 > No messages appear, just a black screen. >=20 > But I can use the SysRq keys, and when I umount the > screen shows the message that umount succeed. I also tried SysRq+t but > the messages appear to fast to read. Ok, but that means you _can_ get messages, it would help a lot if you could put a few printks into the set_disassoc function before/after each other function call, so we know where exactly it hangs. Pretty much all of them could possibly hang if there is some sort of locking error happening or anything relies on userspace to be running... johannes --=-KMtfDeYdhhrHMcPb16hw Content-Type: application/pgp-signature; name=signature.asc Content-Description: This is a digitally signed message part -----BEGIN PGP SIGNATURE----- Comment: Johannes Berg (powerbook) iQIcBAABAgAGBQJJBhLjAAoJEKVg1VMiehFYtUEQAI40VHy8uvSWuKcpeHm5q4Nf snMqWHg67wia13KqdKZPQbALU5d9Ck00n3j6r6ye2bH7yPXLVqQpnQYsVO+waBBR 5PyRSCKb5AouHcBczpIcDFSt0g5Tyqks55p56kF1ZC5aozsVqshtVobP47liLFsD uC4+ZcDuYuUI4gmFsdlztw31NOWGGGtaymNOHnVNURwq1Ytf5l4GSgDDIzNHidMP qo4ls8dLVeHKrqP7A6nBYxFeLK2mmMk5u8Kql4XAkJq5qC+2CgaI4zBiwVDaaUOl 6+EC//Y1xAiV+b/+DXJHAvuc3d9dZ8C947nEmBiSi7qq+NLpX5uUj/oWmQMgQe2B zUOe1HkBBg5m6xcusfBXgn2JemCp8wyKP3twMrnbmj/8raF8sa77IBHFziDpaXQP uBt4JF26a1iSu7ui0DWgJ+eIS2VUVo8XgVtyer0sWHfqTAuDbD1xw/qsRj4KCGjZ acwES60/sRYrJhi+SCud13n5ZXNiop9Zy5JsFMiQIF15Ew5GPDxZeYazRf3NWymT 49/xEFpSwkLeZNWzYC3spmoSX0zSlLy4zOylyYKD5tck1r9qSELtYxFPqKznOzjd PkDtPzE4tRhMO9h2DF1GMZ37gNE5hwbEaG+qrhRuyyB4pJEzA57Wqj5/0huTKQ0T 0e9eO5uh+JNgBIJXL0R3 =R6Rm -----END PGP SIGNATURE----- --=-KMtfDeYdhhrHMcPb16hw--