On Sat, Nov 10, 2018, at 3:47 PM, Alexey Dobriyan wrote: > On Fri, Nov 09, 2018 at 09:30:36AM -0200, Rafael David Tinoco wrote: > > Merge proc-self-map-files tests into one since this test should focus in > > testing readlink in /proc/self/map_files/* only, and not trying to test > > mapping virtual address 0. > > > > Lowest virtual address for user space mapping in other architectures, > > like arm, is *at least* *(PAGE_SIZE * 2) and NULL hint does not > > guarantee that when MAP_FIXED flag, important to this test, is given. > > This patch also fixes this issue in remaining test. > > > - p = mmap(NULL, PAGE_SIZE, PROT_NONE, MAP_PRIVATE|MAP_FILE, fd, 0); > > + p = mmap((void *) (2 * PAGE_SIZE), PAGE_SIZE, PROT_NONE, > > I don't know ARM. Is this 2 page limitation a limitation of hardware or > kernel's? Kernel: https://bugs.linaro.org/show_bug.cgi?id=3782#c7
