1. 22 10月, 2020 1 次提交
    • A
      drm/amd/display: Revert "drm/amd/display: Fix a list corruption" · 0d427f6c
      Andrey Grodzovsky 提交于
      This fixes regression on device unplug and/or driver unload.
      
      [   65.681501 <    0.000004>] BUG: kernel NULL pointer dereference, address: 0000000000000008
      [   65.681504 <    0.000003>] #PF: supervisor write access in kernel mode
      [   65.681506 <    0.000002>] #PF: error_code(0x0002) - not-present page
      [   65.681507 <    0.000001>] PGD 7c9437067 P4D 7c9437067 PUD 7c9db7067 PMD 0
      [   65.681511 <    0.000004>] Oops: 0002 [#1] SMP NOPTI
      [   65.681512 <    0.000001>] CPU: 8 PID: 127 Comm: kworker/8:1 Tainted: G        W  O      5.9.0-rc2-dev+ #59
      [   65.681514 <    0.000002>] Hardware name: System manufacturer System Product Name/PRIME X470-PRO, BIOS 4406 02/28/2019
      [   65.681525 <    0.000011>] Workqueue: events drm_connector_free_work_fn [drm]
      [   65.681535 <    0.000010>] RIP: 0010:drm_atomic_private_obj_fini+0x11/0x60 [drm]
      [   65.681537 <    0.000002>] Code: de 4c 89 e7 e8 70 f2 ba f8 48 8d 65 d8 5b 41 5c 41 5d 41 5e 41 5f 5d c3 90 0f 1f 44 00 00 48 8b 47 08 48 8b 17 55 48 89 e5 53 <48> 89 42 08 48 89 10 48 b8 00 01 00 00 00 00 ad de 48 89 fb 48 89
      [   65.681541 <    0.000004>] RSP: 0018:ffffa5fa805efdd8 EFLAGS: 00010246
      [   65.681542 <    0.000001>] RAX: 0000000000000000 RBX: ffff9a4b094654d8 RCX: 0000000000000000
      [   65.681544 <    0.000002>] RDX: 0000000000000000 RSI: ffffffffba197bc2 RDI: ffff9a4b094654d8
      [   65.681545 <    0.000001>] RBP: ffffa5fa805efde0 R08: ffffffffba197b82 R09: 0000000000000040
      [   65.681547 <    0.000002>] R10: ffffa5fa805efdc8 R11: 000000000000007f R12: ffff9a4b09465888
      [   65.681549 <    0.000002>] R13: ffff9a4b36f20010 R14: ffff9a4b36f20290 R15: ffff9a4b3a692840
      [   65.681551 <    0.000002>] FS:  0000000000000000(0000) GS:ffff9a4b3ea00000(0000) knlGS:0000000000000000
      [   65.681553 <    0.000002>] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
      [   65.681554 <    0.000001>] CR2: 0000000000000008 CR3: 00000007c9c82000 CR4: 00000000003506e0
      [   65.681556 <    0.000002>] Call Trace:
      [   65.681561 <    0.000005>]  drm_dp_mst_topology_mgr_destroy+0xc4/0xe0 [drm_kms_helper]
      [   65.681612 <    0.000051>]  amdgpu_dm_connector_destroy+0x3d/0x110 [amdgpu]
      [   65.681622 <    0.000010>]  drm_connector_free_work_fn+0x78/0x90 [drm]
      [   65.681624 <    0.000002>]  process_one_work+0x164/0x410
      [   65.681626 <    0.000002>]  worker_thread+0x4d/0x450
      [   65.681628 <    0.000002>]  ? rescuer_thread+0x390/0x390
      [   65.681630 <    0.000002>]  kthread+0x10a/0x140
      [   65.681632 <    0.000002>]  ? kthread_unpark+0x70/0x70
      [   65.681634 <    0.000002>]  ret_from_fork+0x22/0x30
      
      This reverts commit 1545fbf9.
      Signed-off-by: NAndrey Grodzovsky <andrey.grodzovsky@amd.com>
      Acked-by: NAlex Deucher <alexander.deucher@amd.com>
      Signed-off-by: NAlex Deucher <alexander.deucher@amd.com>
      Cc: stable@vger.kernel.org
      0d427f6c
  2. 16 9月, 2020 9 次提交
  3. 15 9月, 2020 1 次提交
  4. 04 9月, 2020 1 次提交
    • X
      drm/amd/display: Fix a list corruption · 1545fbf9
      xinhui pan 提交于
      Remove the private obj from the internal list before we free aconnector.
      
      [   56.925828] BUG: unable to handle page fault for address: ffff8f84a870a560
      [   56.933272] #PF: supervisor read access in kernel mode
      [   56.938801] #PF: error_code(0x0000) - not-present page
      [   56.944376] PGD 18e605067 P4D 18e605067 PUD 86a614067 PMD 86a4d0067 PTE 800ffff8578f5060
      [   56.953260] Oops: 0000 [#1] SMP DEBUG_PAGEALLOC NOPTI
      [   56.958815] CPU: 6 PID: 1407 Comm: bash Tainted: G           O      5.9.0-rc2+ #46
      [   56.967092] Hardware name: System manufacturer System Product Name/PRIME Z390-A, BIOS 1401 11/26/2019
      [   56.977162] RIP: 0010:__list_del_entry_valid+0x31/0xa0
      [   56.982768] Code: 00 ad de 55 48 8b 17 4c 8b 47 08 48 89 e5 48 39 c2 74 27 48 b8 22 01 00 00 00 00 ad de 49 39 c0 74 2d 49 8b 30 48 39 fe 75 3d <48> 8b 52 08 48 39 f2 75 4c b8 01 00 00 00 5d c3 48 89 7
      [   57.003327] RSP: 0018:ffffb40c81687c90 EFLAGS: 00010246
      [   57.009048] RAX: dead000000000122 RBX: ffff8f84ea41f4f0 RCX: 0000000000000006
      [   57.016871] RDX: ffff8f84a870a558 RSI: ffff8f84ea41f4f0 RDI: ffff8f84ea41f4f0
      [   57.024672] RBP: ffffb40c81687c90 R08: ffff8f84ea400998 R09: 0000000000000001
      [   57.032490] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000006
      [   57.040287] R13: ffff8f84ea422a90 R14: ffff8f84b4129a20 R15: fffffffffffffff2
      [   57.048105] FS:  00007f550d885740(0000) GS:ffff8f8509600000(0000) knlGS:0000000000000000
      [   57.056979] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
      [   57.063260] CR2: ffff8f84a870a560 CR3: 00000007e5144001 CR4: 00000000003706e0
      [   57.071053] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
      [   57.078849] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
      [   57.086684] Call Trace:
      [   57.089381]  drm_atomic_private_obj_fini+0x29/0x82 [drm]
      [   57.095247]  amdgpu_dm_fini+0x83/0x170 [amdgpu]
      [   57.100264]  dm_hw_fini+0x23/0x30 [amdgpu]
      [   57.104814]  amdgpu_device_fini+0x1df/0x4fe [amdgpu]
      [   57.110271]  amdgpu_driver_unload_kms+0x43/0x70 [amdgpu]
      [   57.116136]  amdgpu_pci_remove+0x3b/0x60 [amdgpu]
      [   57.121291]  pci_device_remove+0x3e/0xb0
      [   57.125583]  device_release_driver_internal+0xff/0x1d0
      [   57.131223]  device_release_driver+0x12/0x20
      [   57.135903]  pci_stop_bus_device+0x70/0xa0
      [   57.140401]  pci_stop_and_remove_bus_device_locked+0x1b/0x30
      [   57.146571]  remove_store+0x7b/0x90
      [   57.150429]  dev_attr_store+0x17/0x30
      [   57.154441]  sysfs_kf_write+0x4b/0x60
      [   57.158479]  kernfs_fop_write+0xe8/0x1d0
      [   57.162788]  vfs_write+0xf5/0x230
      [   57.166426]  ksys_write+0x70/0xf0
      [   57.170087]  __x64_sys_write+0x1a/0x20
      [   57.174219]  do_syscall_64+0x38/0x90
      [   57.178145]  entry_SYSCALL_64_after_hwframe+0x44/0xa9
      Signed-off-by: Nxinhui pan <xinhui.pan@amd.com>
      Acked-by: Feifei Xu <Feifei Xu@amd.com>
      Signed-off-by: NAlex Deucher <alexander.deucher@amd.com>
      1545fbf9
  5. 27 8月, 2020 5 次提交
  6. 25 8月, 2020 4 次提交
  7. 19 8月, 2020 1 次提交
  8. 18 8月, 2020 3 次提交
  9. 15 8月, 2020 1 次提交
  10. 11 8月, 2020 4 次提交
  11. 07 8月, 2020 9 次提交
  12. 05 8月, 2020 1 次提交