Bug#379598: libgnomevfs2-0: uses 100% CPU, prevents login
Gabor Gombas
gombasg at sztaki.hu
Mon Jul 24 19:05:45 UTC 2006
On Mon, Jul 24, 2006 at 05:26:59PM +0200, Loďc Minier wrote:
> I suggest you strace gnome-session, e.g. "strace -e trace=file -f ...".
>
> It probably spins searching for some particular file(s).
Upon further investigation, I think I found the bug:
- With today's upgrade of libntfs-gnomevfs,
/etc/gnome-vfs-2.0/modules/libntfs.conf became a directory (that's
interesting in itself...)
- In gnome-vfs-configuration.c, the function parse_file() now gets into
an endless loop when called with file_name being
"/etc/gnome-vfs-2.0/modules/libntfs.conf":
- read_line() always returns 0 with line_buffer being the empty
string, since it cannot read the directory as a file
- parse_line() returns TRUE when it is given an empty string
- there are no other ways to break the "while (1) { ... }" loop...
The bug seems to be that parse_file() expects read_line() to return -1
on EOF, but read_line() never returns -1; on EOF, it returns 0 instead.
Maybe an explicit test before the g_fopen() that file_name is not a
directory/device node/etc. would be useful.
Gabor
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