On Mon, Feb 12, 2018 at 01:14:07PM +0100, Jiri Slaby wrote: > On 02/12/2018, 11:02 AM, Jiri Slaby wrote: > > Given this happens only on 32bit kernel, I assume some 32bit overflow. > > But I am unable to see it (yet). > > Just to add, a diff of strace in good and bad kernels: > @@ -655,14 +655,4 @@ > _llseek(3, 4275568640, [4286054400], SEEK_DATA) = 0 > _llseek(3, 4286054400, [4288675840], SEEK_HOLE) = 0 > _llseek(3, 4288675840, [4299161600], SEEK_DATA) = 0 > -_llseek(3, 4299161600, [4301783040], SEEK_HOLE) = 0 > +_llseek(3, 4299161600, [4299161600], SEEK_HOLE) = 2621440 > > llseek returns a very invalid value when it comes to 0x100400000. Thanks for the bugreport! Can you send me the output of "filefrag -v" on the file so I can make sure we can exactly replicate what you're seeing? Thanks, - Ted