[gst-devel] Problem using gnomevfs plugin and ssh

[Tiago Katcipis]

I'm developing an application that does heavy use on the gnomevfssrc plugin
to load urls from different protocols, most of the urls are ssh. Everything
was going fine since we started to notice an odd behaviour on our tests,
when the application receives the request to open the same ssh url multiple
times it gives a lot of warnings, and sometimes it even crash.

Because of that odd behaviour i made a simple application reproducing this
problem, basically you pass a url and how many pipes reading that url at the
same time you want, it is just a gnomevfssrc ! fakesink pipe (on more
complex pipelines the error is the same). With this code test if you open
even a hundred times the same http address it works fine, but if you open 3
or more times the same ssh url, it gets this error (it is the same error i
get on the real application, sometimes the errors are bigger but it is the
same warnings multiple times before the crash):

*(gnomevfs_ssh:5316): gnome-vfs-modules-CRITICAL **: Message length too
long: 1761607680
(gnomevfs_ssh:5316): gnome-vfs-modules-WARNING **: ID mismatch (15 != 5)
(gnomevfs_ssh:5316): gnome-vfs-modules-CRITICAL **: Message length too long:
1728053248
(gnomevfs_ssh:5316): gnome-vfs-modules-CRITICAL **: Message length too long:
100663312
(gnomevfs_ssh:5316): gnome-vfs-modules-CRITICAL **: Could not read 1 bytes
(gnomevfs_ssh:5316): gnome-vfs-modules-CRITICAL **: Could not read 4 bytes
(gnomevfs_ssh:5316): gnome-vfs-modules-CRITICAL **: ID mismatch (4286513152
!= 8)
(gnomevfs_ssh:5316): gnome-vfs-modules-CRITICAL **: Expected
SSH2_FXP_HANDLE(102) packet, got 0
(gnomevfs_ssh:5316): gnome-vfs-modules-CRITICAL **: Could not read 4 bytes
GLib-ERROR **: /build/buildd/glib2.0-2.22.3/glib/gmem.c:136: failed to
allocate 18446744073701097472 bytes
aborting...
Aborted*

I don't know if it is something that i am doing wrong, but i suppose i am
allowed to open the same url multiple times to do different processing on
that url, so it sens like a bug on gnomevfssrc, the fact that file and http
protocols works fine is an indicative that the problem is related to
gnomevfssrc and ssh (i didn't tested with others protocols like smb or ftp,
but the test code can test any of these).

Of course when the test is run with only one pipeline reading the ssh url it
works just fine, no warnings or errors are given, 2 or more makes things go
ugly.

can someone help me to see what i am doing wrong or if it is really a bug?

The tests have been made on Ubuntu 9.10 32 bits and 64 bits with gstreamer
0.10.25 (same error on both).

the source code of the test can be found on:
https://svn.inf.ufsc.br/katcipis/c/gstreamer/gnomevfs_ssh_bug/

best regards,
Katcipis
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