From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from ivanoab6.miniserver.com ([5.153.251.140] helo=www.kot-begemot.co.uk) by merlin.infradead.org with esmtps (Exim 4.90_1 #2 (Red Hat Linux)) id 1gK5pv-0001FL-Ub for linux-um@lists.infradead.org; Tue, 06 Nov 2018 18:12:24 +0000 Subject: Re: 4.20-rc1 looks broken for UML References: <4a096c4f-6552-dbcb-676b-a87306dde07a@kot-begemot.co.uk> <1ae6cae1-25a2-30e8-5078-ac318ce73f33@kot-begemot.co.uk> <11176055.DIHjKAC0ao@blindfold> <5de426d0-9707-f470-95fe-a442a5ff91ed@kot-begemot.co.uk> <20181106180005.GA24578@E570.localdomain> From: Anton Ivanov Message-ID: <56faa374-78f7-39ca-3fd0-dbcf2a137ac7@kot-begemot.co.uk> Date: Tue, 6 Nov 2018 18:12:08 +0000 MIME-Version: 1.0 In-Reply-To: <20181106180005.GA24578@E570.localdomain> Content-Language: en-US List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Transfer-Encoding: 7bit Content-Type: text/plain; charset="us-ascii"; Format="flowed" Sender: "linux-um" Errors-To: linux-um-bounces+geert=linux-m68k.org@lists.infradead.org To: Lance Roy Cc: gregkh@linuxfoundation.org, Paul McKenney , linux-um@lists.infradead.org On 11/6/18 6:00 PM, Lance Roy wrote: > CCing Paul McKenney. Any idea what I did wrong? Nothing, problem on my end. Something wrong with my setup and rolling back your commit was a false-positive. I apologize, please ignore. i will continue digging to try to figure out what's wrong. A. > > Thanks, > Lance > > On Tue, Nov 06, 2018 at 03:07:17PM +0000, Anton Ivanov wrote: >> Resend - got Greg's address wrong and missed the commit author. Apologies. >> >> On 11/6/18 3:00 PM, Anton Ivanov wrote: >>> On 11/5/18 10:07 PM, Richard Weinberger wrote: >>>> Anton, >>>> >>>> Am Montag, 5. November 2018, 16:22:36 CET schrieb Anton Ivanov: >>>>> This looks like something specific to ttys - the io there gets >>>>> corruption and/or hangs. >>>>> >>>>> I cannot reproduce it when I ssh in. >>>>> >>>>> It does not look like it is the new write IRQ bugfix - that works fine >>>>> over 4.19. >>>>> >>>>> Still debugging... >>>> Hmm, I don't see this with my Debian userspace. >>>> What exactly is your setup/config? >>> >>> Gotcha. >>> >>> 8ebfe885c65ec82a0b1e955cf99ed62664e84414 is the guilty party. >>> >>> With it, I get tty corruption on UML. Any attempt to push a large amount >>> of data via the console results in spurious echoes or even a hang. >>> >>> Reverting it fixes things. >>> >>> Cc-ing Greg - it was merged from his tree. >>> >>> I will try to figure out what exactly is wrong with it in the meantime. >>> On first reading it looked OK. >>> >>> A >>> >>> >>>> Thanks, >>>> //richard >>>> >>>> >>>> >>>> _______________________________________________ >>>> linux-um mailing list >>>> linux-um@lists.infradead.org >>>> http://lists.infradead.org/mailman/listinfo/linux-um >>>> >>> _______________________________________________ >>> linux-um mailing list >>> linux-um@lists.infradead.org >>> http://lists.infradead.org/mailman/listinfo/linux-um >>> _______________________________________________ linux-um mailing list linux-um@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-um