Hi Matthias, hi hanno! Matthias Julius Matthias Julius <[EMAIL PROTECTED]>: > I just ran across the same problem. > Partly, you got a nice error message. Could you reproduce the segfault as well?
> After upgrading to version 1.8-2 dvgrab told me:
> raw1394 - failed to get handle: Permission denied.
>
Aha, it seems this bug was fixed in dvgrab 1.8?
According changelog, the change in file raw1394util.c could be an
candidate, but this is only guessed.
> After giving myself rw permissions for /dev/raw1394 dvgrab seems to
> work perfectly fine.
>
> And now dvgrab 1.7-1 works as well.
>
But the bug still exist.
> So, make sure you have sufficient permissions for /dev/raw1394.
>
Seems like an udev issue?
The bug, that Hanno filed, occured only, if /dev/raw1394 exists and no
raw1394 module was loaded.
In this case, which usualy never take place, if automatic device node
creation and module loading works fine, it should give an error
message.
On i386 this works as espected, but amd64 seems to fail with a segfault.
So I need some help and set a tag for it:
Could anybody please try to reproduce this bug on amd64? Because I
haven't any access to such architecture, I can't do it by myself.
No special ieee1394 hardware is needed.
Please try the following:
- use sarge on amd64
- build your own package from dvgrab_1.7-1 source package to have a
debug version of dvgrab in the build directory and use this one for
further testing
- make sure that no module will be load on accessing /dev/raw1394 by
renaming /lib/modules/<kernel-version>/kernel/drivers/ieee1394/
into /lib/modules/<kernel-version>/kernel/drivers/ieee1394.disabled
- make sure raw1394 wasn't loaded, onload it
- create device node by hand (it shouldn't be there yet)
$ mknod -m 0666 /dev/raw1394 c 171 0
- run debug version of dvgrab from gdb and give me the backtrace of the
segfault
$ gdb dvgrab
-> run
-> bt
- remove device node /dev/raw1394
- rename /lib/modules/<kernel-version>/kernel/drivers/ieee1394.disabled
back into /lib/modules/<kernel-version>/kernel/drivers/ieee1394/
Thank you in advace.
Kindly regards,
Erik
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