From 72b365e8e0fd5efe1d5c05d04c25950736635cfb Mon Sep 17 00:00:00 2001 From: Phil Sutter Date: Fri, 4 Mar 2016 19:57:28 +0100 Subject: [PATCH] libnetlink: Double the dump buffer size There have been reports about 'ip addr' printing "Message truncated" on systems with large numbers of VFs. Although I haven't been able to get my hands on hardware suitable to reproduce this, increasing the dump buffer has been reported to resolve the issue. For want of a better idea, just double the buffer size to 32k. Feels like this opportunistic buffer size selection is rather workarounding a design flaw in libnetlink or maybe even the netlink protocol itself. Signed-off-by: Phil Sutter --- lib/libnetlink.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/lib/libnetlink.c b/lib/libnetlink.c index d6b5fd3e8..245c4ca21 100644 --- a/lib/libnetlink.c +++ b/lib/libnetlink.c @@ -223,7 +223,7 @@ int rtnl_dump_filter_l(struct rtnl_handle *rth, .msg_iov = &iov, .msg_iovlen = 1, }; - char buf[16384]; + char buf[32768]; int dump_intr = 0; iov.iov_base = buf; -- 2.47.2