diff options
Diffstat (limited to 'meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.14.71/1079-drm-amdgpu-fix-kernel-hang-when-starting-VNC-server.patch')
| -rw-r--r-- | meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.14.71/1079-drm-amdgpu-fix-kernel-hang-when-starting-VNC-server.patch | 70 |
1 files changed, 0 insertions, 70 deletions
diff --git a/meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.14.71/1079-drm-amdgpu-fix-kernel-hang-when-starting-VNC-server.patch b/meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.14.71/1079-drm-amdgpu-fix-kernel-hang-when-starting-VNC-server.patch deleted file mode 100644 index bd481d94..00000000 --- a/meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.14.71/1079-drm-amdgpu-fix-kernel-hang-when-starting-VNC-server.patch +++ /dev/null @@ -1,70 +0,0 @@ -From 52b6c7e92f5eafe1e2cc1dac5679cc8bad1348f5 Mon Sep 17 00:00:00 2001 -From: "Xiangliang.Yu" <Xiangliang.Yu@amd.com> -Date: Fri, 20 Oct 2017 17:21:40 +0800 -Subject: [PATCH 1079/4131] drm/amdgpu: fix kernel hang when starting VNC - server -MIME-Version: 1.0 -Content-Type: text/plain; charset=UTF-8 -Content-Transfer-Encoding: 8bit - -After starting VNC server or running CTS test, kernel will hang and -can see below call trace: - -[961816] INFO: task khugepaged:42 blocked for more than 120 seconds. -[968581] Tainted: G OE 4.13.0 #1 -[973495] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables - this message. -[980962] khugepaged D 0 42 2 0x00000000 -[980967] Call Trace: -[980977] __schedule+0x28d/0x890 -[980982] schedule+0x36/0x80 -[980986] rwsem_down_read_failed+0x139/0x1c0 -[980991] ? update_curr+0x100/0x1c0 -[981004] call_rwsem_down_read_failed+0x18/0x30 -[981007] down_read+0x20/0x40 -[981012] khugepaged_scan_mm_slot+0x78/0x1ac0 -[981018] ? __switch_to+0x23e/0x4a0 -[981022] ? finish_task_switch+0x79/0x240 -[981026] khugepaged+0x146/0x480 -[981031] ? remove_wait_queue+0x60/0x60 -[981035] kthread+0x109/0x140 -[981037] ? khugepaged_scan_mm_slot+0x1ac0/0x1ac0 -[981039] ? kthread_park+0x60/0x60 -[981044] ret_from_fork+0x25/0x30 - -After checking code and found 'commit b72cf4fca2bb7 ("drm/amdgpu: move -taking mmap_sem into get_user_pages v2")' forget to drop one case of -up_read. - -Signed-off-by: Xiangliang.Yu <Xiangliang.Yu@amd.com> -Reviewed-by: Christian König <christian.koenig@amd.com> ---- - drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c | 5 +---- - 1 file changed, 1 insertion(+), 4 deletions(-) - -diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c -index bbc3d1e..19631d0 100644 ---- a/drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c -+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c -@@ -436,7 +436,7 @@ int amdgpu_gem_userptr_ioctl(struct drm_device *dev, void *data, - r = amdgpu_ttm_tt_get_user_pages(bo->tbo.ttm, - bo->tbo.ttm->pages); - if (r) -- goto unlock_mmap_sem; -+ goto release_object; - - r = amdgpu_bo_reserve(bo, true); - if (r) -@@ -461,9 +461,6 @@ int amdgpu_gem_userptr_ioctl(struct drm_device *dev, void *data, - free_pages: - release_pages(bo->tbo.ttm->pages, bo->tbo.ttm->num_pages, false); - --unlock_mmap_sem: -- up_read(¤t->mm->mmap_sem); -- - release_object: - drm_gem_object_put_unlocked(gobj); - --- -2.7.4 - |