From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-pg1-x52f.google.com ([2607:f8b0:4864:20::52f]) by bombadil.infradead.org with esmtps (Exim 4.90_1 #2 (Red Hat Linux)) id 1gK5dT-0004N8-MO for linux-um@lists.infradead.org; Tue, 06 Nov 2018 17:59:34 +0000 Received: by mail-pg1-x52f.google.com with SMTP id i4-v6so6140582pgq.9 for ; Tue, 06 Nov 2018 09:59:20 -0800 (PST) Date: Tue, 6 Nov 2018 10:00:06 -0800 From: Lance Roy Subject: Re: 4.20-rc1 looks broken for UML Message-ID: <20181106180005.GA24578@E570.localdomain> 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> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <5de426d0-9707-f470-95fe-a442a5ff91ed@kot-begemot.co.uk> List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-um" Errors-To: linux-um-bounces+geert=linux-m68k.org@lists.infradead.org To: Anton Ivanov Cc: gregkh@linuxfoundation.org, Paul McKenney , linux-um@lists.infradead.org CCing Paul McKenney. Any idea what I did wrong? 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