_filter_mkfs is a filter so that it should read from stdin first
before printing anything out. Otherwise the command prior to the
pipeline may get EPIPE.
I saw this when testing extN with generic/204, _scratch_mkfs_sized was
unable to create fs because of EPIPE, then _scratch_mount failed.
generic/204 12s ... [failed, exit status 1] - output mismatch (see /root/xfstests/results//generic/204.out.bad)
--- tests/generic/204.out 2013-11-01 16:47:56.728591856 +0800
+++ /root/xfstests/results//generic/204.out.bad 2013-11-01 22:52:53.207828779 +0800
@@ -1,2 +1,7 @@
QA output created by 204
-*** done
+mount: wrong fs type, bad option, bad superblock on /dev/sda6,
+ missing codepage or helper program, or other error
+ In some cases useful info is found in syslog - try
+ dmesg | tail or so
+
Signed-off-by: Eryu Guan <eguan@xxxxxxxxxx>
---
v2: just pipe stdin to /dev/null for non-xfs fs as Dave suggested.
common/filter | 1 +
1 file changed, 1 insertion(+)
diff --git a/common/filter b/common/filter
index e37ce69..c872a27 100644
--- a/common/filter
+++ b/common/filter
@@ -138,6 +138,7 @@ _filter_mkfs()
xfs)
;;
*)
+ cat - >/dev/null
perl -e 'print STDERR "dbsize=4096\nisize=256\n"'
return ;;
esac
--
1.8.3.1
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