The following reply was made to PR kern/170203; it has been noted by GNATS.
From: David Xu
To: Bruce Evans
Cc: davi...@freebsd.org, Garrett Cooper ,
freebsd-bugs@FreeBSD.org, freebsd-gnats-sub...@freebsd.org
Subject: Re: kern/170203: [kern] piped dd's don't behave sanely wh
On 2012/7/27 19:08, Bruce Evans wrote:
On Fri, 27 Jul 2012, David Xu wrote:
On 2012/7/27 10:07, Bruce Evans wrote:
I think it's working almost as expected. Large blocks give non-atomic
I/O, so the reader sees small blocks, then EOF when it gets ahead of
the writer. This always happens witho
The following reply was made to PR kern/170203; it has been noted by GNATS.
From: Bruce Evans
To: davi...@freebsd.org
Cc: Bruce Evans , Garrett Cooper ,
freebsd-bugs@FreeBSD.org, freebsd-gnats-sub...@freebsd.org
Subject: Re: kern/170203: [kern] piped dd's don't behave sanely wh
On Fri, 27 Jul 2012, David Xu wrote:
On 2012/7/27 10:07, Bruce Evans wrote:
I think it's working almost as expected. Large blocks give non-atomic
I/O, so the reader sees small blocks, then EOF when it gets ahead of
the writer. This always happens without SMP.
Not is a bug (debugged below).
The following reply was made to PR kern/170203; it has been noted by GNATS.
From: David Xu
To: Bruce Evans
Cc: Garrett Cooper , freebsd-bugs@FreeBSD.org,
freebsd-gnats-sub...@freebsd.org
Subject: Re: kern/170203: [kern] piped dd's don't behave sanely when dealing
with a fifo
On 2012/7/27 10:07, Bruce Evans wrote:
On Thu, 26 Jul 2012, Garrett Cooper wrote:
Description:
Creating a fifo and then dd'ing across the fifo using /dev/zero
doesn't seem to yield the behavior one would expect to have; dd
should either exit thanks to SIGPIPE being sent or the count being
co
The following reply was made to PR kern/170203; it has been noted by GNATS.
From: Bruce Evans
To: Garrett Cooper
Cc: freebsd-gnats-sub...@freebsd.org, freebsd-bugs@FreeBSD.org
Subject: Re: kern/170203: [kern] piped dd's don't behave sanely when dealing
with a fifo
Date: Fri, 27 Jul
On Thu, 26 Jul 2012, Garrett Cooper wrote:
Description:
Creating a fifo and then dd'ing across the fifo using /dev/zero doesn't seem to
yield the behavior one would expect to have; dd should either exit thanks to
SIGPIPE being sent or the count being completed.
Furthermore, the count is bogu
>Number: 170203
>Category: kern
>Synopsis: [kern] piped dd's don't behave sanely when dealing with a fifo
>Confidential: no
>Severity: non-critical
>Priority: low
>Responsible:freebsd-bugs
>State: open
>Quarter:
>Keywords:
>Date-Require
