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From: Konstantin Ryabitsev <konstantin@linuxfoundation.org>
To: David Hildenbrand <david@redhat.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>,
	Andrew Morton <akpm@linux-foundation.org>,
	Dan Williams <dan.j.williams@intel.com>,
	Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	Heiko Carstens <heiko.carstens@de.ibm.com>,
	Karel Zak <kzak@redhat.com>, Linux-MM <linux-mm@kvack.org>,
	Michal Hocko <mhocko@kernel.org>, Michal Hocko <mhocko@suse.com>,
	mm-commits@vger.kernel.org, ndfont@gmail.com, pbadari@us.ibm.com,
	Rafael Wysocki <rafael@kernel.org>,
	rcj@linux.vnet.ibm.com, stable <stable@vger.kernel.org>,
	steve.scargall@intel.com
Subject: Re: [patch 2/5] drivers/base/memory.c: indicate all memory blocks as removable
Date: Sun, 29 Mar 2020 15:43:54 -0400	[thread overview]
Message-ID: <20200329194354.xrbzlvlbjimy3pzz@chatter.i7.local> (raw)
In-Reply-To: <b80d7cea-a8f7-11c9-66fa-bdc272bdf099@redhat.com>

On Sun, Mar 29, 2020 at 08:03:52PM +0200, David Hildenbrand wrote:
> > Please, David H - whatever you do with email is WRONG.
> > 
> > Fix your completely broken email client. Stop doing this.

To butt in uninvited into this conversation, it doesn't look like 
there's anything really wrong with what David sends, except for the 
quoted-printable formatting, which is probably converted automatically 
by one of Red Hat's relay MTAs.

> What I received via the mailing list (e.g., linux-mm@kvack.org)
> 
> Message-Id: <20200128093542.6908-1-david@redhat.com>
> MIME-Version: 1.0
> X-Scanned-By: MIMEDefang 2.79 on 10.5.11.13
> X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4
> Sender: owner-linux-mm@kvack.org
> Precedence: bulk
> X-Loop: owner-majordomo@kvack.org
> List-ID: <linux-mm.kvack.org>
> [...]
> X-Mimecast-Spam-Score: 1
> Content-Type: text/plain; charset=US-ASCII
> Content-Transfer-Encoding: quoted-printable
> X-Scanned-By: MIMEDefang 2.78 on 10.11.54.4
> [...]
> 
> And a lot of this MIME crap.
> 
> I have no idea if such a conversion is expected to be done.

In theory, it doesn't really matter, as mail clients are supposed to be 
properly undoing all this 7-bit legacy madness. When we run that thread 
through "b4 am" to get things back into 8bit, everything looks just 
fine. You can try it yourself:

b4 am 20200128093542.6908-1-david@redhat.com

> Unless I am missing something important, the issue is not in mail client
> setup, but there is something in the mailing infrastructure horribly
> messing with my mails. Red Hat has recently switched to Mimecast and
> there have been plenty of issues, maybe this is one of these.
> 
> I guess the only thing I can do is sending mails via a different mail
> server / different email address?

It would appear that the workflow Andrew uses to queue up patches from 
you isn't expecting quoted-printable formatting, which is why when Linus 
gets them, they are mangled.

We would either need to switch Andrew to a set of tools that handle 7bit 
legacy formats better, or figure out how you can send things via MTAs 
that won't convert from 8bit to quoted-printable. Maybe you can convince 
Red Hat to set up their relays to always preserve 8bit?

-K


  parent reply	other threads:[~2020-03-29 19:43 UTC|newest]

Thread overview: 20+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-03-29  2:14 incoming Andrew Morton
2020-03-29  2:17 ` [patch 1/5] mm/swapfile.c: move inode_lock out of claim_swapfile Andrew Morton
2020-03-29  2:17 ` [patch 2/5] drivers/base/memory.c: indicate all memory blocks as removable Andrew Morton
2020-03-29 16:46   ` Linus Torvalds
2020-03-29 18:03     ` David Hildenbrand
2020-03-29 18:28       ` Linus Torvalds
2020-03-29 19:11         ` David Hildenbrand
2020-03-29 19:15           ` Linus Torvalds
2020-03-29 19:43       ` Konstantin Ryabitsev [this message]
2020-03-29 19:55         ` Linus Torvalds
2020-03-29 19:56           ` Linus Torvalds
2020-03-30 14:46           ` Konstantin Ryabitsev
2020-03-30 14:54         ` David Hildenbrand
2020-04-01 13:35           ` David Hildenbrand
2020-04-01 15:33             ` Konstantin Ryabitsev
2020-04-01 15:40               ` David Hildenbrand
2020-03-29  2:17 ` [patch 3/5] hugetlb_cgroup: fix illegal access to memory Andrew Morton
2020-03-29  2:17 ` [patch 4/5] mm: fork: fix kernel_stack memcg stats for various stack implementations Andrew Morton
2020-03-29 16:41   ` Linus Torvalds
2020-03-29  2:17 ` [patch 5/5] mm/sparse: fix kernel crash with pfn_section_valid check Andrew Morton

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