From: David Goulet <dgoulet@efficios.com>
Date: Wed, 12 Dec 2012 18:39:37 +0000 (-0500)
Subject: Remove MSG_WAITALL on every recvmsg() socket type
X-Git-Tag: v2.1.0~64
X-Git-Url: https://git.lttng.org/?p=lttng-tools.git;a=commitdiff_plain;h=7c5aef6226a4752f3a4e60cd0b52c741dced395e;hp=7c5aef6226a4752f3a4e60cd0b52c741dced395e

Remove MSG_WAITALL on every recvmsg() socket type

In order to handle messages that are possibly larger than the socket
buffer size set by wmem_max and rmem_max /proc files, ensure that the
recv-side reads the data chunk-wise rather than hanging on a
MSG_WAITALL.

In addition to fixing this issue, chances are that it will also help
fixing hangs detected due to UNIX socket buffers filling up. The
MSG_WAITALL behavior in such situations might be unexpected.

Acked-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Signed-off-by: David Goulet <dgoulet@efficios.com>
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