[Intel-gfx] [PATCH v2] drm/i915: Fix the race between the GEM close and debugfs

__vfs_read+0x45/0x1b9 vfs_read+0xc9/0x15e ksys_read+0x7e/0xde do_syscall_64+0x54/0x7e entry_SYSCALL_64_after_hwframe+0x44/0xa9 RIP: 0033:0x7a1bdd34cf03 Signed-off-by: Nikunj A. Dadhania Reviewed-by: Tvrtko Ursulin Cc: sta...@vger.kernel.org --- drivers/gpu/drm/i915/i915_debugfs.c |

Re: [Intel-gfx] [PATCH] drm/i915: Fix the race between the GEM close and debugfs

On 9/14/2020 10:17 PM, Tvrtko Ursulin wrote: On 14/09/2020 12:00, Nikunj A. Dadhania wrote: As we close GEM object and set file_priv to -EBADF which is protected by ctx->mutex, populating the GEM debugfs info is not protected and results in the crash shown below. Make sure to protect

[Intel-gfx] [PATCH] drm/i915: Fix the race between the GEM close and debugfs

__vfs_read+0x45/0x1b9 vfs_read+0xc9/0x15e ksys_read+0x7e/0xde do_syscall_64+0x54/0x7e entry_SYSCALL_64_after_hwframe+0x44/0xa9 RIP: 0033:0x7a1bdd34cf03 Signed-off-by: Nikunj A. Dadhania --- drivers/gpu/drm/i915/i915_debugfs.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/