1. 08 2月, 2018 2 次提交
  2. 06 2月, 2018 1 次提交
  3. 05 2月, 2018 2 次提交
  4. 03 2月, 2018 1 次提交
  5. 01 2月, 2018 1 次提交
  6. 26 1月, 2018 2 次提交
  7. 24 1月, 2018 3 次提交
  8. 23 1月, 2018 3 次提交
  9. 11 1月, 2018 1 次提交
    • C
      drm/i915: Don't adjust priority on an already signaled fence · 5005c851
      Chris Wilson 提交于
      When we retire a signaled fence, we free the dependency tree. However,
      we skip clearing the list so that if we then try to adjust the priority
      of the signaled fence, we may walk the list of freed dependencies.
      
      [ 3083.156757] ==================================================================
      [ 3083.156806] BUG: KASAN: use-after-free in execlists_schedule+0x199/0x660 [i915]
      [ 3083.156810] Read of size 8 at addr ffff8806bf20f400 by task Xorg/831
      
      [ 3083.156815] CPU: 0 PID: 831 Comm: Xorg Not tainted 4.15.0-rc6-no-psn+ #1
      [ 3083.156817] Hardware name: Notebook                         N24_25BU/N24_25BU, BIOS 5.12 02/17/2017
      [ 3083.156818] Call Trace:
      [ 3083.156823]  dump_stack+0x5c/0x7a
      [ 3083.156827]  print_address_description+0x6b/0x290
      [ 3083.156830]  kasan_report+0x28f/0x380
      [ 3083.156872]  ? execlists_schedule+0x199/0x660 [i915]
      [ 3083.156914]  execlists_schedule+0x199/0x660 [i915]
      [ 3083.156956]  ? intel_crtc_atomic_check+0x146/0x4e0 [i915]
      [ 3083.156997]  ? execlists_submit_request+0xe0/0xe0 [i915]
      [ 3083.157038]  ? i915_vma_misplaced.part.4+0x25/0xb0 [i915]
      [ 3083.157079]  ? __i915_vma_do_pin+0x7c8/0xc80 [i915]
      [ 3083.157121]  ? intel_atomic_state_alloc+0x44/0x60 [i915]
      [ 3083.157130]  ? drm_atomic_helper_page_flip+0x3e/0xb0 [drm_kms_helper]
      [ 3083.157145]  ? drm_mode_page_flip_ioctl+0x7d2/0x850 [drm]
      [ 3083.157159]  ? drm_ioctl_kernel+0xa7/0xf0 [drm]
      [ 3083.157172]  ? drm_ioctl+0x45b/0x560 [drm]
      [ 3083.157211]  i915_gem_object_wait_priority+0x14c/0x2c0 [i915]
      [ 3083.157251]  ? i915_gem_get_aperture_ioctl+0x150/0x150 [i915]
      [ 3083.157290]  ? i915_vma_pin_fence+0x1d8/0x320 [i915]
      [ 3083.157331]  ? intel_pin_and_fence_fb_obj+0x175/0x250 [i915]
      [ 3083.157372]  ? intel_rotation_info_size+0x60/0x60 [i915]
      [ 3083.157413]  ? intel_link_compute_m_n+0x80/0x80 [i915]
      [ 3083.157428]  ? drm_dev_printk+0x1b0/0x1b0 [drm]
      [ 3083.157443]  ? drm_dev_printk+0x1b0/0x1b0 [drm]
      [ 3083.157485]  intel_prepare_plane_fb+0x2f8/0x5a0 [i915]
      [ 3083.157527]  ? intel_crtc_get_vblank_counter+0x80/0x80 [i915]
      [ 3083.157536]  drm_atomic_helper_prepare_planes+0xa0/0x1c0 [drm_kms_helper]
      [ 3083.157587]  intel_atomic_commit+0x12e/0x4e0 [i915]
      [ 3083.157605]  drm_atomic_helper_page_flip+0xa2/0xb0 [drm_kms_helper]
      [ 3083.157621]  drm_mode_page_flip_ioctl+0x7d2/0x850 [drm]
      [ 3083.157638]  ? drm_mode_cursor2_ioctl+0x10/0x10 [drm]
      [ 3083.157652]  ? drm_lease_owner+0x1a/0x30 [drm]
      [ 3083.157668]  ? drm_mode_cursor2_ioctl+0x10/0x10 [drm]
      [ 3083.157681]  drm_ioctl_kernel+0xa7/0xf0 [drm]
      [ 3083.157696]  drm_ioctl+0x45b/0x560 [drm]
      [ 3083.157711]  ? drm_mode_cursor2_ioctl+0x10/0x10 [drm]
      [ 3083.157725]  ? drm_getstats+0x20/0x20 [drm]
      [ 3083.157729]  ? timerqueue_del+0x49/0x80
      [ 3083.157732]  ? __remove_hrtimer+0x62/0xb0
      [ 3083.157735]  ? hrtimer_try_to_cancel+0x173/0x210
      [ 3083.157738]  do_vfs_ioctl+0x13b/0x880
      [ 3083.157741]  ? ioctl_preallocate+0x140/0x140
      [ 3083.157744]  ? _raw_spin_unlock_irq+0xe/0x30
      [ 3083.157746]  ? do_setitimer+0x234/0x370
      [ 3083.157750]  ? SyS_setitimer+0x19e/0x1b0
      [ 3083.157752]  ? SyS_alarm+0x140/0x140
      [ 3083.157755]  ? __rcu_read_unlock+0x66/0x80
      [ 3083.157757]  ? __fget+0xc4/0x100
      [ 3083.157760]  SyS_ioctl+0x74/0x80
      [ 3083.157763]  entry_SYSCALL_64_fastpath+0x1a/0x7d
      [ 3083.157765] RIP: 0033:0x7f6135d0c6a7
      [ 3083.157767] RSP: 002b:00007fff01451888 EFLAGS: 00003246 ORIG_RAX: 0000000000000010
      [ 3083.157769] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007f6135d0c6a7
      [ 3083.157771] RDX: 00007fff01451950 RSI: 00000000c01864b0 RDI: 000000000000000c
      [ 3083.157772] RBP: 00007f613076f600 R08: 0000000000000001 R09: 0000000000000000
      [ 3083.157773] R10: 0000000000000060 R11: 0000000000003246 R12: 0000000000000000
      [ 3083.157774] R13: 0000000000000060 R14: 000000000000001b R15: 0000000000000060
      
      [ 3083.157779] Allocated by task 831:
      [ 3083.157783]  kmem_cache_alloc+0xc0/0x200
      [ 3083.157822]  i915_gem_request_await_dma_fence+0x2c4/0x5d0 [i915]
      [ 3083.157861]  i915_gem_request_await_object+0x321/0x370 [i915]
      [ 3083.157900]  i915_gem_do_execbuffer+0x1165/0x19c0 [i915]
      [ 3083.157937]  i915_gem_execbuffer2+0x1ad/0x550 [i915]
      [ 3083.157950]  drm_ioctl_kernel+0xa7/0xf0 [drm]
      [ 3083.157962]  drm_ioctl+0x45b/0x560 [drm]
      [ 3083.157964]  do_vfs_ioctl+0x13b/0x880
      [ 3083.157966]  SyS_ioctl+0x74/0x80
      [ 3083.157968]  entry_SYSCALL_64_fastpath+0x1a/0x7d
      
      [ 3083.157971] Freed by task 831:
      [ 3083.157973]  kmem_cache_free+0x77/0x220
      [ 3083.158012]  i915_gem_request_retire+0x72c/0xa70 [i915]
      [ 3083.158051]  i915_gem_request_alloc+0x1e9/0x8b0 [i915]
      [ 3083.158089]  i915_gem_do_execbuffer+0xa96/0x19c0 [i915]
      [ 3083.158127]  i915_gem_execbuffer2+0x1ad/0x550 [i915]
      [ 3083.158140]  drm_ioctl_kernel+0xa7/0xf0 [drm]
      [ 3083.158153]  drm_ioctl+0x45b/0x560 [drm]
      [ 3083.158155]  do_vfs_ioctl+0x13b/0x880
      [ 3083.158156]  SyS_ioctl+0x74/0x80
      [ 3083.158158]  entry_SYSCALL_64_fastpath+0x1a/0x7d
      
      [ 3083.158162] The buggy address belongs to the object at ffff8806bf20f400
                      which belongs to the cache i915_dependency of size 64
      [ 3083.158166] The buggy address is located 0 bytes inside of
                      64-byte region [ffff8806bf20f400, ffff8806bf20f440)
      [ 3083.158168] The buggy address belongs to the page:
      [ 3083.158171] page:00000000d43decc4 count:1 mapcount:0 mapping:          (null) index:0x0
      [ 3083.158174] flags: 0x17ffe0000000100(slab)
      [ 3083.158179] raw: 017ffe0000000100 0000000000000000 0000000000000000 0000000180200020
      [ 3083.158182] raw: ffffea001afc16c0 0000000500000005 ffff880731b881c0 0000000000000000
      [ 3083.158184] page dumped because: kasan: bad access detected
      
      [ 3083.158187] Memory state around the buggy address:
      [ 3083.158190]  ffff8806bf20f300: fb fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc
      [ 3083.158192]  ffff8806bf20f380: fb fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc
      [ 3083.158195] >ffff8806bf20f400: fb fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc
      [ 3083.158196]                    ^
      [ 3083.158199]  ffff8806bf20f480: fb fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc
      [ 3083.158201]  ffff8806bf20f500: fb fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc
      [ 3083.158203] ==================================================================
      Reported-by: NAlexandru Chirvasitu <achirvasub@gmail.com>
      Reported-by: NMike Keehan <mike@keehan.net>
      Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=104436
      Fixes: 1f181225 ("drm/i915/execlists: Keep request->priority for its lifetime")
      Signed-off-by: NChris Wilson <chris@chris-wilson.co.uk>
      Cc: Alexandru Chirvasitu <achirvasub@gmail.com>
      Cc: Michał Winiarski <michal.winiarski@intel.com>
      Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
      Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
      Tested-by: NAlexandru Chirvasitu <achirvasub@gmail.com>
      Reviewed-by: NMichał Winiarski <michal.winiarski@intel.com>
      Link: https://patchwork.freedesktop.org/patch/msgid/20180106105618.13532-1-chris@chris-wilson.co.uk
      (cherry picked from commit c218ee03)
      Signed-off-by: NJani Nikula <jani.nikula@intel.com>
      5005c851
  10. 08 1月, 2018 1 次提交
    • C
      drm/i915: Don't adjust priority on an already signaled fence · c218ee03
      Chris Wilson 提交于
      When we retire a signaled fence, we free the dependency tree. However,
      we skip clearing the list so that if we then try to adjust the priority
      of the signaled fence, we may walk the list of freed dependencies.
      
      [ 3083.156757] ==================================================================
      [ 3083.156806] BUG: KASAN: use-after-free in execlists_schedule+0x199/0x660 [i915]
      [ 3083.156810] Read of size 8 at addr ffff8806bf20f400 by task Xorg/831
      
      [ 3083.156815] CPU: 0 PID: 831 Comm: Xorg Not tainted 4.15.0-rc6-no-psn+ #1
      [ 3083.156817] Hardware name: Notebook                         N24_25BU/N24_25BU, BIOS 5.12 02/17/2017
      [ 3083.156818] Call Trace:
      [ 3083.156823]  dump_stack+0x5c/0x7a
      [ 3083.156827]  print_address_description+0x6b/0x290
      [ 3083.156830]  kasan_report+0x28f/0x380
      [ 3083.156872]  ? execlists_schedule+0x199/0x660 [i915]
      [ 3083.156914]  execlists_schedule+0x199/0x660 [i915]
      [ 3083.156956]  ? intel_crtc_atomic_check+0x146/0x4e0 [i915]
      [ 3083.156997]  ? execlists_submit_request+0xe0/0xe0 [i915]
      [ 3083.157038]  ? i915_vma_misplaced.part.4+0x25/0xb0 [i915]
      [ 3083.157079]  ? __i915_vma_do_pin+0x7c8/0xc80 [i915]
      [ 3083.157121]  ? intel_atomic_state_alloc+0x44/0x60 [i915]
      [ 3083.157130]  ? drm_atomic_helper_page_flip+0x3e/0xb0 [drm_kms_helper]
      [ 3083.157145]  ? drm_mode_page_flip_ioctl+0x7d2/0x850 [drm]
      [ 3083.157159]  ? drm_ioctl_kernel+0xa7/0xf0 [drm]
      [ 3083.157172]  ? drm_ioctl+0x45b/0x560 [drm]
      [ 3083.157211]  i915_gem_object_wait_priority+0x14c/0x2c0 [i915]
      [ 3083.157251]  ? i915_gem_get_aperture_ioctl+0x150/0x150 [i915]
      [ 3083.157290]  ? i915_vma_pin_fence+0x1d8/0x320 [i915]
      [ 3083.157331]  ? intel_pin_and_fence_fb_obj+0x175/0x250 [i915]
      [ 3083.157372]  ? intel_rotation_info_size+0x60/0x60 [i915]
      [ 3083.157413]  ? intel_link_compute_m_n+0x80/0x80 [i915]
      [ 3083.157428]  ? drm_dev_printk+0x1b0/0x1b0 [drm]
      [ 3083.157443]  ? drm_dev_printk+0x1b0/0x1b0 [drm]
      [ 3083.157485]  intel_prepare_plane_fb+0x2f8/0x5a0 [i915]
      [ 3083.157527]  ? intel_crtc_get_vblank_counter+0x80/0x80 [i915]
      [ 3083.157536]  drm_atomic_helper_prepare_planes+0xa0/0x1c0 [drm_kms_helper]
      [ 3083.157587]  intel_atomic_commit+0x12e/0x4e0 [i915]
      [ 3083.157605]  drm_atomic_helper_page_flip+0xa2/0xb0 [drm_kms_helper]
      [ 3083.157621]  drm_mode_page_flip_ioctl+0x7d2/0x850 [drm]
      [ 3083.157638]  ? drm_mode_cursor2_ioctl+0x10/0x10 [drm]
      [ 3083.157652]  ? drm_lease_owner+0x1a/0x30 [drm]
      [ 3083.157668]  ? drm_mode_cursor2_ioctl+0x10/0x10 [drm]
      [ 3083.157681]  drm_ioctl_kernel+0xa7/0xf0 [drm]
      [ 3083.157696]  drm_ioctl+0x45b/0x560 [drm]
      [ 3083.157711]  ? drm_mode_cursor2_ioctl+0x10/0x10 [drm]
      [ 3083.157725]  ? drm_getstats+0x20/0x20 [drm]
      [ 3083.157729]  ? timerqueue_del+0x49/0x80
      [ 3083.157732]  ? __remove_hrtimer+0x62/0xb0
      [ 3083.157735]  ? hrtimer_try_to_cancel+0x173/0x210
      [ 3083.157738]  do_vfs_ioctl+0x13b/0x880
      [ 3083.157741]  ? ioctl_preallocate+0x140/0x140
      [ 3083.157744]  ? _raw_spin_unlock_irq+0xe/0x30
      [ 3083.157746]  ? do_setitimer+0x234/0x370
      [ 3083.157750]  ? SyS_setitimer+0x19e/0x1b0
      [ 3083.157752]  ? SyS_alarm+0x140/0x140
      [ 3083.157755]  ? __rcu_read_unlock+0x66/0x80
      [ 3083.157757]  ? __fget+0xc4/0x100
      [ 3083.157760]  SyS_ioctl+0x74/0x80
      [ 3083.157763]  entry_SYSCALL_64_fastpath+0x1a/0x7d
      [ 3083.157765] RIP: 0033:0x7f6135d0c6a7
      [ 3083.157767] RSP: 002b:00007fff01451888 EFLAGS: 00003246 ORIG_RAX: 0000000000000010
      [ 3083.157769] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007f6135d0c6a7
      [ 3083.157771] RDX: 00007fff01451950 RSI: 00000000c01864b0 RDI: 000000000000000c
      [ 3083.157772] RBP: 00007f613076f600 R08: 0000000000000001 R09: 0000000000000000
      [ 3083.157773] R10: 0000000000000060 R11: 0000000000003246 R12: 0000000000000000
      [ 3083.157774] R13: 0000000000000060 R14: 000000000000001b R15: 0000000000000060
      
      [ 3083.157779] Allocated by task 831:
      [ 3083.157783]  kmem_cache_alloc+0xc0/0x200
      [ 3083.157822]  i915_gem_request_await_dma_fence+0x2c4/0x5d0 [i915]
      [ 3083.157861]  i915_gem_request_await_object+0x321/0x370 [i915]
      [ 3083.157900]  i915_gem_do_execbuffer+0x1165/0x19c0 [i915]
      [ 3083.157937]  i915_gem_execbuffer2+0x1ad/0x550 [i915]
      [ 3083.157950]  drm_ioctl_kernel+0xa7/0xf0 [drm]
      [ 3083.157962]  drm_ioctl+0x45b/0x560 [drm]
      [ 3083.157964]  do_vfs_ioctl+0x13b/0x880
      [ 3083.157966]  SyS_ioctl+0x74/0x80
      [ 3083.157968]  entry_SYSCALL_64_fastpath+0x1a/0x7d
      
      [ 3083.157971] Freed by task 831:
      [ 3083.157973]  kmem_cache_free+0x77/0x220
      [ 3083.158012]  i915_gem_request_retire+0x72c/0xa70 [i915]
      [ 3083.158051]  i915_gem_request_alloc+0x1e9/0x8b0 [i915]
      [ 3083.158089]  i915_gem_do_execbuffer+0xa96/0x19c0 [i915]
      [ 3083.158127]  i915_gem_execbuffer2+0x1ad/0x550 [i915]
      [ 3083.158140]  drm_ioctl_kernel+0xa7/0xf0 [drm]
      [ 3083.158153]  drm_ioctl+0x45b/0x560 [drm]
      [ 3083.158155]  do_vfs_ioctl+0x13b/0x880
      [ 3083.158156]  SyS_ioctl+0x74/0x80
      [ 3083.158158]  entry_SYSCALL_64_fastpath+0x1a/0x7d
      
      [ 3083.158162] The buggy address belongs to the object at ffff8806bf20f400
                      which belongs to the cache i915_dependency of size 64
      [ 3083.158166] The buggy address is located 0 bytes inside of
                      64-byte region [ffff8806bf20f400, ffff8806bf20f440)
      [ 3083.158168] The buggy address belongs to the page:
      [ 3083.158171] page:00000000d43decc4 count:1 mapcount:0 mapping:          (null) index:0x0
      [ 3083.158174] flags: 0x17ffe0000000100(slab)
      [ 3083.158179] raw: 017ffe0000000100 0000000000000000 0000000000000000 0000000180200020
      [ 3083.158182] raw: ffffea001afc16c0 0000000500000005 ffff880731b881c0 0000000000000000
      [ 3083.158184] page dumped because: kasan: bad access detected
      
      [ 3083.158187] Memory state around the buggy address:
      [ 3083.158190]  ffff8806bf20f300: fb fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc
      [ 3083.158192]  ffff8806bf20f380: fb fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc
      [ 3083.158195] >ffff8806bf20f400: fb fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc
      [ 3083.158196]                    ^
      [ 3083.158199]  ffff8806bf20f480: fb fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc
      [ 3083.158201]  ffff8806bf20f500: fb fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc
      [ 3083.158203] ==================================================================
      Reported-by: NAlexandru Chirvasitu <achirvasub@gmail.com>
      Reported-by: NMike Keehan <mike@keehan.net>
      Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=104436
      Fixes: 1f181225 ("drm/i915/execlists: Keep request->priority for its lifetime")
      Signed-off-by: NChris Wilson <chris@chris-wilson.co.uk>
      Cc: Alexandru Chirvasitu <achirvasub@gmail.com>
      Cc: Michał Winiarski <michal.winiarski@intel.com>
      Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
      Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
      Tested-by: NAlexandru Chirvasitu <achirvasub@gmail.com>
      Reviewed-by: NMichał Winiarski <michal.winiarski@intel.com>
      Link: https://patchwork.freedesktop.org/patch/msgid/20180106105618.13532-1-chris@chris-wilson.co.uk
      c218ee03
  11. 03 1月, 2018 6 次提交
  12. 23 12月, 2017 1 次提交
    • C
      drm/i915/execlists: Show preemption progress in GEM_TRACE · 193a98dc
      Chris Wilson 提交于
      We already emit a GEM_TRACE for when we start preemption, but we lack
      one to show when the preemption is completed and we return to the regular
      queue. This is to continue the investigation into the mysterious
      
      <0>[  197.854177]   <idle>-0       1..s1 197837017us : execlists_submission_tasklet: rcs0 cs-irq head=0 [0], tail=0 [0]
      <0>[  197.854209] drv_self-6008    2.... 197837390us : reset_common_ring: rcs0 seqno=15515
      <0>[  197.854240] drv_self-6008    2.... 197837415us : reset_common_ring: bcs0 seqno=0
      <0>[  197.854270] drv_self-6008    2.... 197837443us : reset_common_ring: vcs0 seqno=0
      <0>[  197.854300] drv_self-6008    2.... 197837463us : reset_common_ring: vcs1 seqno=0
      <0>[  197.854330] drv_self-6008    2.... 197837482us : reset_common_ring: vecs0 seqno=0
      <0>[  197.854360] ksoftirq-23      2..s. 197838341us : execlists_submission_tasklet: bcs0 in[0]:  ctx=0.1, seqno=1dce7
      <0>[  197.854392]   <idle>-0       1..s1 197838347us : execlists_submission_tasklet: bcs0 cs-irq head=0 [0], tail=0 [0]
      <0>[  197.854423] ksoftirq-23      2..s. 197838354us : execlists_submission_tasklet: vcs0 in[0]:  ctx=0.1, seqno=1d027
      <0>[  197.854456] ksoftirq-23      2.Ns. 197838361us : execlists_submission_tasklet: vcs1 in[0]:  ctx=0.1, seqno=1e738
      <0>[  197.854488] ksoftirq-23      2.Ns. 197838366us : execlists_submission_tasklet: vecs0 in[0]:  ctx=0.1, seqno=235aa
      <0>[  197.854520] ksoftirq-23      2.Ns. 197838376us : execlists_submission_tasklet: rcs0 in[0]:  ctx=0.1, seqno=15518
      <0>[  197.854552]   <idle>-0       1..s1 197853285us : execlists_submission_tasklet: rcs0 cs-irq head=0 [0], tail=7 [7]
      <0>[  197.854584]   <idle>-0       1..s1 197853285us : execlists_submission_tasklet: rcs0 csb[1]: status=0x00000018:0x00000000
      <0>[  197.854616]   <idle>-0       1..s1 197853286us : execlists_submission_tasklet: rcs0 out[0]: ctx=0.0, seqno=0
      Signed-off-by: NChris Wilson <chris@chris-wilson.co.uk>
      Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
      Link: https://patchwork.freedesktop.org/patch/msgid/20171222132742.4272-1-chris@chris-wilson.co.ukReviewed-by: NTvrtko Ursulin <tvrtko.ursulin@intel.com>
      193a98dc
  13. 20 12月, 2017 2 次提交
  14. 08 12月, 2017 1 次提交
  15. 29 11月, 2017 1 次提交
  16. 22 11月, 2017 2 次提交
  17. 21 11月, 2017 2 次提交
  18. 20 11月, 2017 3 次提交
  19. 16 11月, 2017 2 次提交
  20. 11 11月, 2017 3 次提交