On Wed, Dec 01, 2010 at 05:32:39PM +0100, Sedat Dilek wrote: > Hi Nick, > > while playing with the vfs-scale-working I discovered besides the > problem in [1] also a NULL dereference in vfat_cmpi() (see attached > screenshot). > > This happened when I wanted to copy pics stored on a 256M SDcard > (plugged into a Transcend USB2-SDcard-adapter for faster reading data) > to my local harddisk. > > The system was frozen - again a brutal cold start. > > Hope this helps you finding the bug. Ah it does, thanks. It tried to dereference NULL inode from negative dentry. First line of vat_cmpi should be parent->d_sb rather than inode->i_sb. I think I'll want to tweak the d_compare API change not to pass the inode in, to avoid this possibility. Thanks, Nick -- To unsubscribe from this list: send the line "unsubscribe linux-fsdevel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html