<html> <head> <base href="https://bugs.freedesktop.org/"> </head> <body> <div> <a class="bz_bug_link bz_status_NEW " title="NEW - [BAT] [KBL] nvme driver is using a mutex inside an rcu callback causing igt@gem_exec_suspend@basic-s4-devices to fail with dmesg-warn" href="https://bugs.freedesktop.org/show_bug.cgi?id=100099#c2">Comment # 2</a> on <a class="bz_bug_link bz_status_NEW " title="NEW - [BAT] [KBL] nvme driver is using a mutex inside an rcu callback causing igt@gem_exec_suspend@basic-s4-devices to fail with dmesg-warn" href="https://bugs.freedesktop.org/show_bug.cgi?id=100099">bug 100099</a> from <a class="email" href="mailto:chris@chris-wilson.co.uk" title="Chris Wilson <chris@chris-wilson.co.uk>"> Chris Wilson</a> <pre>Also [ 245.294829] -> #5 (&dev->struct_mutex){+.+.+.}: [ 245.294836] lock_acquire+0xc9/0x220 [ 245.294842] drm_gem_object_put_unlocked+0x40/0xc0 [ 245.294845] drm_gem_mmap+0xd1/0x100 [ 245.294849] mmap_region+0x39e/0x600 [ 245.294851] do_mmap+0x44c/0x500 [ 245.294853] vm_mmap_pgoff+0x9d/0xd0 [ 245.294856] SyS_mmap_pgoff+0x182/0x220 [ 245.294858] SyS_mmap+0x16/0x20 [ 245.294862] entry_SYSCALL_64_fastpath+0x1c/0xb1 is a false chain. We still do take the struct_mutex underneath mm->mmap_sem via i915_gem_fault() though.</pre> </div> <hr> You are receiving this mail because: <ul> <li>You are the QA Contact for the bug.</li> <li>You are the assignee for the bug.</li> <li>You are on the CC list for the bug.</li> </ul> </body> </html>