Okay Kees. I will take a look at it. Best, Shubham Bansal
On Fri, Jul 7, 2017 at 10:12 AM, Kees Cook <keesc...@chromium.org> wrote: > On Wed, Jul 5, 2017 at 8:49 PM, Shubham Bansal > <illusionist....@gmail.com> wrote: >> Hi Kees, >> >> Problem is my ARM machine don't have clang and iproute2 which is >> keeping me from testing the bpf tail calls. >> >> You should do the following to test it,. >> >> 1. tools/testing/selftests/bpf/ >> 2. make >> 3. sudo ./test_progs >> >> And, before testing, you have to do "make headers_install". >> These tests are for tail calls with the attached patch. If its too >> much work, Can you please upload your arm image so that I can test it? >> I just need a good machine. > > I've got all this set up now, and it faults during the test: > > Unable to handle kernel NULL pointer dereference at virtual address 00000008 > ... > CPU: 0 PID: 1922 Comm: test_progs Not tainted 4.12.0+ #60 > ... > PC is at __htab_map_lookup_elem+0x54/0x1f4 > > I'll see if I can send you this disk image... > > -Kees > > > -- > Kees Cook > Pixel Security
