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From: Janosch Frank <frankja@linux.vnet.ibm.com>
To: Sascha Silbe <silbe@linux.vnet.ibm.com>
Cc: qemu-devel@nongnu.org, Fam Zheng <famz@redhat.com>
Subject: Re: [Qemu-devel] [PATCH 1/3] docker.py: don't hang on large docker output
Date: Fri, 19 Aug 2016 10:58:14 +0200	[thread overview]
Message-ID: <d5e0e840-5264-6784-231c-4f3abfbc9869@linux.vnet.ibm.com> (raw)
In-Reply-To: <1471551152-26107-2-git-send-email-silbe@linux.vnet.ibm.com>

On 08/18/2016 10:12 PM, Sascha Silbe wrote:
> Unlike Popen.communicate(), subprocess.call() doesn't read from the
> stdout file descriptor. If the child process produces more output than
> fits into the pipe buffer, it will block indefinitely.
> 
> If we don't intend to consume the output, just send it straight to
> /dev/null to avoid this issue.
> 
> Signed-off-by: Sascha Silbe <silbe@linux.vnet.ibm.com>

Reviewed-by: Janosch Frank <frankja@linux.vnet.ibm.com>

  reply	other threads:[~2016-08-19  8:58 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-08-18 20:12 [Qemu-devel] [PATCH 0/3] docker tests fixes Sascha Silbe
2016-08-18 20:12 ` [Qemu-devel] [PATCH 1/3] docker.py: don't hang on large docker output Sascha Silbe
2016-08-19  8:58   ` Janosch Frank [this message]
2016-08-18 20:12 ` [Qemu-devel] [PATCH 2/3] docker: avoid dependency on 'realpath' package Sascha Silbe
2016-08-18 20:12 ` [Qemu-devel] [PATCH 3/3] docker: debian-bootstrap.pre: print helpful message if DEB_ARCH/DEB_TYPE unset Sascha Silbe
2016-08-19  9:56 ` [Qemu-devel] [PATCH 0/3] docker tests fixes Alex Bennée
2016-08-23 13:52   ` Sascha Silbe

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