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From: "Darrick J. Wong" <djwong@kernel.org>
To: djwong@kernel.org, guaneryu@gmail.com
Cc: linux-xfs@vger.kernel.org, fstests@vger.kernel.org, guan@eryu.me
Subject: [PATCH 2/3] common/xfs: work around a hang-on-stdin bug in xfs_admin 5.11
Date: Tue, 30 Mar 2021 18:08:15 -0700	[thread overview]
Message-ID: <161715289578.2703773.11659648563859531836.stgit@magnolia> (raw)
In-Reply-To: <161715288469.2703773.13448230101596914371.stgit@magnolia>

From: Darrick J. Wong <djwong@kernel.org>

xfs_admin in xfsprogs 5.11 has a bug wherein a caller who specifies an
external log device forces xfs_db to be invoked, potentially with zero
command arguments.  When this happens, xfs_db will wait for input on
stdin, which causes fstests to hang.  Since xfs_admin is not an
interactive tool, redirect stdin from /dev/null to prevent this issue.

Signed-off-by: Darrick J. Wong <djwong@kernel.org>
---
 common/xfs |    8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)


diff --git a/common/xfs b/common/xfs
index 189da54b..c97e08ba 100644
--- a/common/xfs
+++ b/common/xfs
@@ -277,7 +277,13 @@ _scratch_xfs_admin()
 			_notrun 'xfs_admin does not support rt devices'
 		rt_opts+=(-r "$SCRATCH_RTDEV")
 	fi
-	$XFS_ADMIN_PROG "${rt_opts[@]}" "$@" "${options[@]}"
+
+	# xfs_admin in xfsprogs 5.11 has a bug where an external log device
+	# forces xfs_db to be invoked, potentially with zero command arguments.
+	# When this happens, xfs_db will wait for input on stdin, which causes
+	# fstests to hang.  Since xfs_admin is not an interactive tool, we
+	# can redirect stdin from /dev/null to prevent this issue.
+	$XFS_ADMIN_PROG "${rt_opts[@]}" "$@" "${options[@]}" < /dev/null
 }
 
 _scratch_xfs_logprint()


  parent reply	other threads:[~2021-03-31  1:09 UTC|newest]

Thread overview: 13+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-03-31  1:08 [PATCHSET v3 0/3] fstests: make sure NEEDSREPAIR feature stops mounts Darrick J. Wong
2021-03-31  1:08 ` [PATCH 1/3] common/xfs: support realtime devices with _scratch_xfs_admin Darrick J. Wong
2021-03-31 16:39   ` Brian Foster
2021-03-31  1:08 ` Darrick J. Wong [this message]
2021-03-31 16:39   ` [PATCH 2/3] common/xfs: work around a hang-on-stdin bug in xfs_admin 5.11 Brian Foster
2021-03-31  1:08 ` [PATCH 3/3] xfs: test that the needsrepair feature works as advertised Darrick J. Wong
2021-03-31 16:41   ` Brian Foster
2021-04-02  1:24     ` Darrick J. Wong
2021-04-05 14:46       ` Brian Foster
2021-04-07 23:20         ` Darrick J. Wong
2021-04-11 13:22       ` Eryu Guan
2021-04-12 17:27         ` Darrick J. Wong
2021-04-12 18:07           ` Brian Foster

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