On Mon, Aug 10, 2020 at 8:31 AM Yauheni Kaliuta <yauheni.kaliuta@xxxxxxxxxx> wrote: > > 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. > No worries! Meanwhile there has been an alternative fix for the same bug: [0]! [0] https://patchwork.ozlabs.org/project/netdev/patch/20200810153940.125508-1-Jianlin.Lv@xxxxxxx/
