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SubjectRe: sunrpc: infinite unkillable console spam in xs_tcp_setup_socket
Date
On Mon, 2017-11-20 at 14:02 +0100, Dmitry Vyukov wrote:
> Hello,
>
> The following program triggers infinite stream of the following
> output
> on console. The program is unkillable and this effectively brings the
> machine down:
>
>
> ** 16 printk messages dropped ** [12875.022917] xs_tcp_setup_socket:
> connect returned unhandled error -113
>

Does the following fix the issue?

8<-----------------------------------------------------
From f48d3f01df45f50f0145060f5272ccf1aea855ac Mon Sep 17 00:00:00 2001
From: Trond Myklebust <trond.myklebust@primarydata.com>
Date: Fri, 24 Nov 2017 12:00:24 -0500
Subject: [PATCH] SUNRPC: Allow connect to return EHOSTUNREACH

Reported-by: Dmitry Vyukov <dvyukov@google.com>
Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
---
net/sunrpc/xprtsock.c | 1 +
1 file changed, 1 insertion(+)

diff --git a/net/sunrpc/xprtsock.c b/net/sunrpc/xprtsock.c
index 4dad5da388d6..8cb40f8ffa5b 100644
--- a/net/sunrpc/xprtsock.c
+++ b/net/sunrpc/xprtsock.c
@@ -2437,6 +2437,7 @@ static void xs_tcp_setup_socket(struct work_struct *work)
case -ECONNREFUSED:
case -ECONNRESET:
case -ENETUNREACH:
+ case -EHOSTUNREACH:
case -EADDRINUSE:
case -ENOBUFS:
/*
--
2.14.3
--
Trond Myklebust
Linux NFS client maintainer, PrimaryData
trond.myklebust@primarydata.com
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