[LTP] proc01 hang with 3.10.0-0.rc1/rc2

[Jan Stancek <jstancek@redhat.com>]

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Hi,

proc01 hangs on read from /proc/self/net/rpc/use-gss-proxy.

I'm attaching a patch if anyone runs rc kernels and is hitting it too,
it's not meant for inclusion to LTP. At least not yet, since the issue
exists only in -rc kernels.

Regards,
Jan

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From 77b14e19e319c3b59ef068805abf00d19af008d8 Mon Sep 17 00:00:00 2001
Message-Id: <77b14e19e319c3b59ef068805abf00d19af008d8.1369401766.git.jstancek@redhat.com>
From: Jan Stancek <jstancek@redhat.com>
Date: Fri, 24 May 2013 15:21:18 +0200
Subject: [PATCH] proc01: skip /proc/self/net/rpc/use-gss-proxy

It blocks even with O_NONBLOCK, which causes this test to hang.
This patch also converts WARN to INFO, since there are supposed
to be known failures.

Signed-off-by: Jan Stancek <jstancek@redhat.com>
---
 testcases/kernel/fs/proc/proc01.c |    7 +++++--
 1 files changed, 5 insertions(+), 2 deletions(-)

diff --git a/testcases/kernel/fs/proc/proc01.c b/testcases/kernel/fs/proc/proc01.c
index f2aa483..c9979ab 100644
--- a/testcases/kernel/fs/proc/proc01.c
+++ b/testcases/kernel/fs/proc/proc01.c
@@ -137,6 +137,8 @@ static const char lsm_should_work[][PATH_MAX] = {
    the test while being read. */
 static const char error_nonblock[][PATH_MAX] = {
 	"/proc/xen/xenbus",
+	"/proc/self/net/rpc/use-gss-proxy",
+	"/proc/[0-9]*/net/rpc/use-gss-proxy",
 	""
 };
 
@@ -363,8 +365,9 @@ static long readproc(const char *obj)
 
 		/* Skip files does not honor O_NONBLOCK. */
 		for (i = 0; error_nonblock[i][0] != '\0'; i++) {
-			if (!strcmp(obj, error_nonblock[i])) {
-				tst_resm(TWARN, "%s: does not honor "
+			if (!strcmp(obj, error_nonblock[i]) ||
+				!fnmatch(error_nonblock[i], obj, FNM_PATHNAME)) {
+				tst_resm(TINFO, "%s: skip, does not honor "
 					 "O_NONBLOCK", obj);
 				return 0;
 			}
-- 
1.7.1


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