Bug 171528 – SIGFPE in gstasf with http://joule.via.ecp.fr/~lool/debian/foo.asf

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Bug 171528 - SIGFPE in gstasf with http://joule.via.ecp.fr/~lool/debian/foo.asf


Summary:	SIGFPE in gstasf with http://joule.via.ecp.fr/~lool/debian/foo.asf


Status:	RESOLVED FIXED

Product:	GStreamer
Classification:	Platform
Component:	gst-plugins-ugly
Version:	0.8.11
Hardware:	Other Linux

Importance:	Normal normal
Target Milestone:	0.10.2
Assigned To:	GStreamer Maintainers
QA Contact:	GStreamer Maintainers

URL:
Whiteboard:

Depends on:
Blocks:

Reported:	2005-03-24 21:35 UTC by Loïc Minier
Modified:	2006-02-17 13:59 UTC

See Also:
GNOME target:	---
GNOME version:	---

Description Loïc Minier 2005-03-24 21:35:52 UTC

Version details: Debian/sid
Distribution/Version: Debian/sid

Hi,

I got a private mail report of a crash with an ASF of which the file:
http://joule.via.ecp.fr/~lool/debian/foo.asf

is an extract.

I can reproduce the crash with gst-plugins 0.8.7 and 0.8.8 in Debian sarge and
sid.  Somehow, on my sid system, it doesn't occur.

Here are some bits of a backtrace:
Program received signal SIGFPE, Arithmetic exception.

+ Trace 57294

Thread 1145199536 (LWP 2764)

#0 gst_asf_demux_descramble_segment
at gstasfdemux.c line 1328
#1 gst_asf_demux_process_chunk
at gstasfdemux.c line 1440
#2 gst_asf_demux_process_segment
at gstasfdemux.c line 938
#3 gst_asf_demux_handle_data
at gstasfdemux.c line 1084
#4 gst_asf_demux_loop
at gstasfdemux.c line 243
#5 ??
from /usr/lib/gstreamer-0.8/libgstoptscheduler.so
#6 ??
#7 ??
#8 ??
from /usr/lib/gstreamer-0.8/libgstoptscheduler.so
#9 ??
from /usr/lib/gstreamer-0.8/libgstoptscheduler.so
#10 ??
#11 ??
#12 ??
from /usr/lib/gstreamer-0.8/libgstoptscheduler.so
#13 ??
#14 ??
#15 ??
#16 ??
#17 ??
from /usr/lib/gstreamer-0.8/libgstoptscheduler.so
#18 ??
#19 ??
#20 ??
#21 ??
from /usr/lib/gstreamer-0.8/libgstoptscheduler.so
#22 ??
#23 ??
#24 ??
#25 gst_debug_log
from /usr/lib/libgstreamer-0.8.so.1



It's painful to get plugins built with debugging symbols with the Debian
packages, so I did not install all debugging modules, I think the relevant part
is shown.

I don't know when I'll be able to look deeper into this.

Bye,

Comment 1 Ronald Bultje 2005-03-25 21:23:50 UTC

Fixing the SIGFPE isn't so hard, but we appear to lose sync. ffmpeg does a
better job. I'll look closer.

Comment 2 Loïc Minier 2005-06-21 13:48:43 UTC

Any news on this?  I'm getting other SIGFPE in gstasf, I ponder deactivating it,
is this sane?

Comment 3 Loïc Minier 2005-06-21 20:29:39 UTC

It appears amarok will SIGFPE on startup (only with gstreamer 0.8.10) if
libgstasf is there, and it is the very same backtrace:
Program received signal SIGFPE, Arithmetic exception.
---Type <return> to continue, or q <return> to quit---

+ Trace 61368

Thread NaN (LWP 1167)

#0 gst_asf_demux_descramble_segment
at gstasfdemux.c line 1333
#1 gst_asf_demux_process_chunk
at gstasfdemux.c line 1448
#2 gst_asf_demux_process_segment
at gstasfdemux.c line 939
#3 gst_asf_demux_handle_data
at gstasfdemux.c line 1089
#4 gst_asf_demux_loop
at gstasfdemux.c line 231
#5 ??
from /usr/lib/gstreamer-0.8/libgstoptscheduler.so
#6 ??
#7 ??
#8 ??
from /usr/lib/gstreamer-0.8/libgstoptscheduler.so
#9 ??
from /usr/lib/gstreamer-0.8/libgstoptscheduler.so
#10 ??
#11 ??
#12 ??
from /usr/lib/gstreamer-0.8/libgstoptscheduler.so
#13 ??
#14 ??
#15 ??
#16 ??
#17 ??
from /usr/lib/gstreamer-0.8/libgstoptscheduler.so
#18 ??
#19 ??
#20 ??
#21 ??
from /usr/lib/gstreamer-0.8/libgstoptscheduler.so
#22 ??
#23 ??
#24 ??
#25 gst_debug_log
from /usr/lib/libgstreamer-0.8.so.1



Should I disable the gstasf plugin in a newer Debian build?

Comment 4 Luca Ognibene 2005-09-19 18:31:24 UTC

It stills segfault with:
gst-launch-0.8 filesrc location="foo.asf" ! asfdemux ! fakesink

Comment 5 Andy Wingo 2006-01-12 12:43:44 UTC

I get an FPE as well on x86-64, with the pipeline from comment #4 and gstreamer 0.8.11. asfdemux doesn't appear to be ported yet to 0.10.

Comment 6 Tim-Philipp Müller 2006-02-17 09:39:19 UTC

FWIW, the SIGFPE is fixed in the 0.10 port, but there's still some playback issues. In case someone wants to port the fix back, I believe it involved an added } else { bracket in the stream parse function and an early bail out in the descramble_segment function, but my memory about that is very hazy.

Comment 7 Edward Hervey 2006-02-17 10:06:26 UTC

asfdemux is now in plugins-ugly 0.10 cvs and with the latest fixes it works fine.

2006-02-17  Edward Hervey  <edward@fluendo.com>

	* gst/asfdemux/gstasfdemux.c: (gst_asf_demux_process_file):
	Take into account the file properties preroll value for
	timestamping/newsegment. It's weird this value was commented out.