<html> <head> <base href="https://bugs.freedesktop.org/"> </head> <body> <div> <a class="bz_bug_link bz_status_NEW " title="NEW - [BXT/GLK/KBL/BDW/BSW]gem_mmap/swap-bo causing page allocation failure" href="https://bugs.freedesktop.org/show_bug.cgi?id=100585#c6">Comment # 6</a> on <a class="bz_bug_link bz_status_NEW " title="NEW - [BXT/GLK/KBL/BDW/BSW]gem_mmap/swap-bo causing page allocation failure" href="https://bugs.freedesktop.org/show_bug.cgi?id=100585">bug 100585</a> from <a class="email" href="mailto:jari.tahvanainen@intel.com" title="Jari Tahvanainen <jari.tahvanainen@intel.com>"> Jari Tahvanainen</a> <pre>Chris - you said that this is known limitation. So are you saying that one can use ~95% of memory successfully with this gem_mmap@swap-bo case? If huge object is bigger than that then i915 (or kernel) mm fails? On my dev-HSW I found out that the following is the limit (90% of repetitions the case if pass): Subtest swap-bo failed. **** DEBUG **** (gem_mmap:25393) intel-os-DEBUG: Checking 1 surfaces of size 15 985 541 120 bytes (total 15 985 545 216) against RAM + swap (gem_mmap:25393) drmtest-DEBUG: Test requirement passed: !(fd<0) (gem_mmap:25393) igt-debugfs-DEBUG: Opening debugfs directory '/sys/kernel/debug/dri/0' (gem_mmap:25393) intel-os-DEBUG: Test requirement passed: __intel_check_memory(count, size, mode, &required, &total) (gem_mmap:25393) igt-core-DEBUG: Test requirement passed: !igt_run_in_simulation() (gem_mmap:25393) DEBUG: Exercising 15 985 541 120 bytes (gem_mmap:25393) DEBUG: Total_ram 16 589 520 896 bytes</pre> </div> <hr> You are receiving this mail because: <ul> <li>You are the assignee for the bug.</li> <li>You are the QA Contact for the bug.</li> <li>You are on the CC list for the bug.</li> </ul> </body> </html>