Hi! On Tue, Jul 28, 2020 at 8:15 AM Andrii Nakryiko <andrii.nakryiko@xxxxxxxxx> wrote: > > On Thu, Jul 23, 2020 at 4:02 AM Yauheni Kaliuta > <yauheni.kaliuta@xxxxxxxxxx> wrote: > > > > Hi! > > > > I have a question about the part of the test: > > > > [...] > > > > > In my configuration the first mapping > > > > /* map all but last page: pages 1-3 mapped */ > > tmp1 = mmap(NULL, 3 * page_size, PROT_READ, MAP_SHARED, > > data_map_fd, 0); > > > > > > maps the area to the 3 pages right before the TLS page. > > I find it's pretty ok. > > Hm... I never ran into this problem. The point here is to be able to > re-mmap partial ranges. One way would be to re-write all those > manipulations to start with a full range map, and then do partial > un-mmaps/re-mmaps, eventually just re-mmaping everything back. I think > that would work, right, as long as we never unmmap the last page? Do > you mind trying to fix the test in such a fashion? Sorry for the delay. I don't sure, sending the patch.