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[95.91.251.143]) by smtp.googlemail.com with ESMTPSA id q15-v6sm114700eju.51.2018.10.22.23.06.09 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Mon, 22 Oct 2018 23:06:09 -0700 (PDT) Subject: Re: Reiser4 Linux 4.17.19-1 hangs in Google cloud VM, too. To: Jose R R , viro@zeniv.linux.org.uk Cc: ReiserFS Development List , linux-kernel References: <20181022101912.3CE2E292B005@huitzilopochtli.metztli-it.com> <20181023033852.GR32577@ZenIV.linux.org.uk> From: Edward Shishkin Message-ID: <92ce097a-a896-c346-17e9-4789eb5c3c59@gmail.com> Date: Tue, 23 Oct 2018 08:06:07 +0200 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 Thunderbird/52.4.0 MIME-Version: 1.0 In-Reply-To: Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 7bit Content-Language: en-US Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 10/23/2018 06:28 AM, Jose R R wrote: > Thank you for replying, Al- > > On Mon, Oct 22, 2018 at 8:38 PM Al Viro wrote: >> On Mon, Oct 22, 2018 at 03:19:12AM -0700, Metztli Information Technology wrote: >>> I installed reiser4 -enhanced Linux kernel 4.17.19-1 --thus replacing the prior hung reiser4 -patched kernel 4.18.15-1 in the Google Compute Engine (GCE) cloud instance. After less than 24 hours the 4.17.19-1 hung in similar way to the 4.18.15-1. >>> >>> Please note that I had been running my custom Metztli Reiser4 Debian Stretch image with reiser4 linux 4.14.20-1 without issues for several months >>> < https://github.com/Metztli/reiser4-debian-kernel-packaging-4.14.20 > --until I decided to upgrade to newer kernel(s). Hello. Looks like a regression because of VFS/block-layer changes (I don't test new releases carefully enough). Once I am back from vacations, I'll have a look at this.. Thanks, Edward. > That link you referenced is just my hack for the corresponding Debian > kernel packaging (wrapper) to build 'Reiser4 the Debian Way', i.e, > generating reiser4 module & kernel -- suitable for installation media > -- in addition to Debian's. > >> Er... Does anybody maintain reiser4 these days? I can't recall a single mail >> along the lines of "such-and-such VFS/VM/scheduler/etc. change would break reiser4" >> in quite a few years (more than a decade, most likely)... > This is the actual patch for the Linux 4.14.xy series: > < https://sourceforge.net/projects/reiser4/files/reiser4-for-linux-4.x/reiser4-for-4.14.1.patch.gz/download > And yes, Mr. Edward Shishkin, still develops/maintains reiser4, please see: > < https://github.com/edward6/reiser4 > > > I have a couple of reiser4 custom Google Compute Engine (GCE) cloud > instances which have been running LAMP for a while. One of them runs > reiser4 -enabled Linux kernel 4.15.x whereas the other one was running > 4.14.x (both for several months/years already) until I decided to > upgrade the 4.4.20-1 to newer reiser4 -enabled kernels. By the way > this last kernel that I installed: > uname -a > Linux cohuatl 4.16.0-2+reiser4.0.2-amd64 #1 SMP Debian 4.16.18-2 > (2018-06-27) x86_64 GNU/Linux > > seems to be performing nicely --if things continue fine I can assume > that the drastic change affecting reiser4 hacked kernels occurred > beginning with upstream Linux series 4.17.x and on... > > > Best Professional Regards. >