Steps to reproduce:
There's no reliable way to get it to crash, but I get it very often by just
scrolling the images with the mousewheel.

Stack trace:
This was from a folder export:

=================================================================
Got a SIGSEGV while executing native code. This usually indicates
a fatal error in the mono runtime or one of the native libraries
used by your application.
=================================================================

Stacktrace:

in <0x4> (wrapper managed-to-native) Exif.ExifData:exif_data_save_data (System.R
untime.InteropServices.HandleRef,intptr&,uint&)
in <0xffffff91> (wrapper managed-to-native) Exif.ExifData:exif_data_save_data (S
ystem.Runtime.InteropServices.HandleRef,intptr&,uint&)
in <0x39> Exif.ExifData:Save ()
in <0x101> PixbufUtils:SaveJpeg (Gdk.Pixbuf,string,int,Exif.ExifData)
in <0x27f> FSpot.FolderGallery:ProcessImage (int)
in <0x26> FSpot.FolderGallery:Generate ()
in <0xe> FSpot.OriginalGallery:Generate ()
in <0x259> FSpot.FolderExport:Upload ()
in <0x2991d0> (wrapper delegate-invoke) System.MulticastDelegate:invoke_void ()
in <0x21c3f57> (wrapper runtime-invoke) System.Object:runtime_invoke_void (objec
t,intptr,intptr,intptr)

Native stacktrace:

        /usr/lib/libmono.so.0(mono_handle_native_sigsegv+0xdf) [0xb7e2d060]
        /usr/lib/libmono.so.0 [0xb7deeece]
        [0xffffe440]
        /usr/lib/libexif.so.12(exif_data_save_data+0x102) [0xb5748eb4]
        [0xb576c290]
        [0xb576c1c2]
        [0xb576b0da]
        [0xb576a188]
        [0xb5769e6f]
        [0xb5769d9f]
        [0xb5769032]
        [0xb59af1d8]
        [0xb5c48379]
        /usr/lib/libmono.so.0 [0xb7e0c2a8]
        /usr/lib/libmono.so.0(mono_runtime_invoke+0x33) [0xb7e6e2ad]
        /usr/lib/libmono.so.0(mono_runtime_delegate_invoke+0x42) [0xb7e6f48b]
        /usr/lib/libmono.so.0 [0xb7e9f347]
        /usr/lib/libmono.so.0 [0xb7ee8e2b]
        /usr/lib/libmono.so.0(GC_start_routine+0x5f) [0xb7f026dd]
        /lib/tls/i686/cmov/libpthread.so.0 [0xb7d05341]
        /lib/tls/i686/cmov/libc.so.6(__clone+0x5e) [0xb7c7052e]
Xlib: unexpected async reply (sequence 0x9271)!

And very often when just browsing images I get:

Xlib: unexpected async reply (sequence 0xbc777)!

And f-spot hangs.

Other information:
f-spot version is cvs, but this has happened for as long as I have tried f-spot,
at least for a year, probably longer.

libexif is 0.6.12.

This is on a Dual Pentium III 1ghz, in case it's related with smp.