id	summary	reporter	owner	description	type	status	priority	milestone	component	version	resolution	keywords	cc	field_blocks	field_dependson	field_seealso
374	Hang while unmounting dirty MFS	Jakub Jermář	Jakub Jermář	"The following leads to a possibly infinity active loop in file_bd:

{{{
/ # cd /tmp
/tmp # mfile -s 300k img
/tmp # file_bd img fd0
...
/tmp # mkmfs fd0
...
/tmp # mfs
...
/tmp # mount mfs /data fd0
/tmp # touch /data/a
/tmp # unmount /data
}}}

After the unmount command, the file system will appear hung. Looking at threads from kconsole reveals that file_bd is busy all the time. Using the btrace command shows that it loops somewhere inside fwrite()."	defect	closed	major	0.5.0	helenos/lib/c	mainline	fixed