* [CI] drm/i915: Only call finish_reset after a prepare_reset
@ 2018-04-05 12:37 Chris Wilson
2018-04-05 13:27 ` ✓ Fi.CI.BAT: success for " Patchwork
2018-04-05 15:31 ` ✓ Fi.CI.IGT: " Patchwork
0 siblings, 2 replies; 3+ messages in thread
From: Chris Wilson @ 2018-04-05 12:37 UTC (permalink / raw)
To: intel-gfx
If we skip the intel_prepare_reset(), we should also skip the
intel_display_reset(). If we we use a flag set by intel_prepare_reset()
then we do not have to second guess based on external user controlled
state whether or not the prepare was called before deciding to finish
it after the reset. igt/gem_eio is one such example that may tweak
i915.reset faster than the code is expecting, leading to
[ 190.233528] =====================================
[ 190.233534] WARNING: bad unlock balance detected!
[ 190.233540] 4.16.0-rc7-g335ef9849310-drmtip_10+ #1 Tainted: G U
[ 190.233547] -------------------------------------
[ 190.233553] gem_eio/1348 is trying to release lock (crtc_ww_class_acquire) at:
[ 190.233569] [<ffffffff895c7810>] drm_modeset_acquire_fini+0x0/0x60
[ 190.233575] but there are no more locks to release!
[ 190.233580]
other info that might help us debug this:
[ 190.233588] 3 locks held by gem_eio/1348:
[ 190.233592] #0: (&f->f_pos_lock){+.+.}, at: [<00000000ab90c784>] __fdget_pos+0x3a/0x50
[ 190.233607] #1: (sb_writers#11){.+.+}, at: [<00000000e1529265>] vfs_write+0x188/0x1a0
[ 190.233622] #2: (&attr->mutex){+.+.}, at: [<0000000011f40afe>] simple_attr_write+0x36/0xd0
[ 190.233635]
stack backtrace:
[ 190.233644] CPU: 0 PID: 1348 Comm: gem_eio Tainted: G U 4.16.0-rc7-g335ef9849310-drmtip_10+ #1
[ 190.233655] Hardware name: Dell Inc. OptiPlex GX280 /0G8310, BIOS A04 02/09/2005
[ 190.233664] Call Trace:
[ 190.233674] dump_stack+0x67/0x95
[ 190.233682] ? drm_modeset_backoff+0x1b0/0x1b0
[ 190.233690] print_unlock_imbalance_bug+0xd2/0xe0
[ 190.233698] ? drm_modeset_backoff+0x1b0/0x1b0
[ 190.233704] lock_release+0x23e/0x300
[ 190.233712] drm_modeset_acquire_fini+0x16/0x60
[ 190.233835] intel_finish_reset+0x72/0x160 [i915]
[ 190.233894] i915_reset_device+0x1e9/0x240 [i915]
[ 190.233953] ? __intel_get_crtc_scanline+0x1c0/0x1c0 [i915]
[ 190.233962] ? work_on_cpu_safe+0x50/0x50
[ 190.234020] i915_handle_error+0x1f2/0x470 [i915]
[ 190.234031] ? __might_fault+0x39/0x90
[ 190.234037] ? __might_fault+0x39/0x90
[ 190.234099] i915_wedged_set+0x7f/0xc0 [i915]
[ 190.234107] simple_attr_write+0xb0/0xd0
[ 190.234117] full_proxy_write+0x51/0x80
[ 190.234125] __vfs_write+0x21/0x140
[ 190.234133] ? rcu_read_lock_sched_held+0x6f/0x80
[ 190.234140] ? rcu_sync_lockdep_assert+0x29/0x50
[ 190.234147] ? __sb_start_write+0x152/0x1f0
[ 190.234152] ? __sb_start_write+0x168/0x1f0
[ 190.234159] vfs_write+0xbd/0x1a0
[ 190.234166] SyS_write+0x40/0xa0
[ 190.234173] ? do_syscall_64+0x19/0x1b0
[ 190.234180] do_syscall_64+0x6b/0x1b0
[ 190.234188] entry_SYSCALL_64_after_hwframe+0x42/0xb7
[ 190.234196] RIP: 0033:0x7f84c1b392b7
[ 190.234201] RSP: 002b:00007f84b6755b00 EFLAGS: 00000293 ORIG_RAX: 0000000000000001
[ 190.234211] RAX: ffffffffffffffda RBX: 0000000000000046 RCX: 00007f84c1b392b7
[ 190.234218] RDX: 0000000000000002 RSI: 000055ec20abc8d6 RDI: 0000000000000046
[ 190.234225] RBP: 000055ec20abc8d6 R08: 0000000000000000 R09: 0000000000000000
[ 190.234231] R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000002
[ 190.234238] R13: 0000000000000000 R14: 00007f84b0000b20 R15: 000055ec20ce4eb8
Testcase: igt/gem_eio
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Reviewed-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
---
drivers/gpu/drm/i915/intel_display.c | 9 +++------
1 file changed, 3 insertions(+), 6 deletions(-)
diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index 415fb8cf2cf4..9c6156216e5e 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -3677,7 +3677,6 @@ void intel_prepare_reset(struct drm_i915_private *dev_priv)
struct drm_atomic_state *state;
int ret;
-
/* reset doesn't touch the display */
if (!i915_modparams.force_reset_modeset_test &&
!gpu_reset_clobbers_display(dev_priv))
@@ -3731,19 +3730,17 @@ void intel_finish_reset(struct drm_i915_private *dev_priv)
{
struct drm_device *dev = &dev_priv->drm;
struct drm_modeset_acquire_ctx *ctx = &dev_priv->reset_ctx;
- struct drm_atomic_state *state = dev_priv->modeset_restore_state;
+ struct drm_atomic_state *state;
int ret;
/* reset doesn't touch the display */
- if (!i915_modparams.force_reset_modeset_test &&
- !gpu_reset_clobbers_display(dev_priv))
+ if (!test_bit(I915_RESET_MODESET, &dev_priv->gpu_error.flags))
return;
+ state = fetch_and_zero(&dev_priv->modeset_restore_state);
if (!state)
goto unlock;
- dev_priv->modeset_restore_state = NULL;
-
/* reset doesn't touch the display */
if (!gpu_reset_clobbers_display(dev_priv)) {
/* for testing only restore the display */
--
2.16.3
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^ permalink raw reply related [flat|nested] 3+ messages in thread
* ✓ Fi.CI.BAT: success for drm/i915: Only call finish_reset after a prepare_reset
2018-04-05 12:37 [CI] drm/i915: Only call finish_reset after a prepare_reset Chris Wilson
@ 2018-04-05 13:27 ` Patchwork
2018-04-05 15:31 ` ✓ Fi.CI.IGT: " Patchwork
1 sibling, 0 replies; 3+ messages in thread
From: Patchwork @ 2018-04-05 13:27 UTC (permalink / raw)
To: Chris Wilson; +Cc: intel-gfx
== Series Details ==
Series: drm/i915: Only call finish_reset after a prepare_reset
URL : https://patchwork.freedesktop.org/series/41207/
State : success
== Summary ==
Series 41207v1 drm/i915: Only call finish_reset after a prepare_reset
https://patchwork.freedesktop.org/api/1.0/series/41207/revisions/1/mbox/
---- Known issues:
Test kms_flip:
Subgroup basic-flip-vs-wf_vblank:
pass -> DMESG-FAIL (fi-elk-e7500) fdo#103989
Test kms_pipe_crc_basic:
Subgroup suspend-read-crc-pipe-b:
pass -> INCOMPLETE (fi-snb-2520m) fdo#103713
Subgroup suspend-read-crc-pipe-c:
dmesg-warn -> PASS (fi-glk-j4005) fdo#105644
Test prime_vgem:
Subgroup basic-fence-flip:
fail -> PASS (fi-ilk-650) fdo#104008
fdo#103989 https://bugs.freedesktop.org/show_bug.cgi?id=103989
fdo#103713 https://bugs.freedesktop.org/show_bug.cgi?id=103713
fdo#105644 https://bugs.freedesktop.org/show_bug.cgi?id=105644
fdo#104008 https://bugs.freedesktop.org/show_bug.cgi?id=104008
fi-bdw-5557u total:285 pass:264 dwarn:0 dfail:0 fail:0 skip:21 time:431s
fi-bdw-gvtdvm total:285 pass:261 dwarn:0 dfail:0 fail:0 skip:24 time:440s
fi-blb-e6850 total:285 pass:220 dwarn:1 dfail:0 fail:0 skip:64 time:381s
fi-bsw-n3050 total:285 pass:239 dwarn:0 dfail:0 fail:0 skip:46 time:540s
fi-bwr-2160 total:285 pass:180 dwarn:0 dfail:0 fail:0 skip:105 time:297s
fi-bxt-dsi total:285 pass:255 dwarn:0 dfail:0 fail:0 skip:30 time:515s
fi-bxt-j4205 total:285 pass:256 dwarn:0 dfail:0 fail:0 skip:29 time:514s
fi-byt-j1900 total:285 pass:250 dwarn:0 dfail:0 fail:0 skip:35 time:522s
fi-byt-n2820 total:285 pass:246 dwarn:0 dfail:0 fail:0 skip:39 time:508s
fi-cfl-8700k total:285 pass:257 dwarn:0 dfail:0 fail:0 skip:28 time:410s
fi-cfl-s3 total:285 pass:259 dwarn:0 dfail:0 fail:0 skip:26 time:559s
fi-cfl-u total:285 pass:259 dwarn:0 dfail:0 fail:0 skip:26 time:510s
fi-cnl-y3 total:285 pass:259 dwarn:0 dfail:0 fail:0 skip:26 time:584s
fi-elk-e7500 total:285 pass:225 dwarn:0 dfail:1 fail:0 skip:59 time:447s
fi-gdg-551 total:285 pass:176 dwarn:0 dfail:0 fail:1 skip:108 time:316s
fi-glk-1 total:285 pass:257 dwarn:0 dfail:0 fail:0 skip:28 time:540s
fi-glk-j4005 total:285 pass:256 dwarn:0 dfail:0 fail:0 skip:29 time:484s
fi-hsw-4770 total:285 pass:258 dwarn:0 dfail:0 fail:0 skip:27 time:406s
fi-ilk-650 total:285 pass:225 dwarn:0 dfail:0 fail:0 skip:60 time:422s
fi-ivb-3520m total:285 pass:256 dwarn:0 dfail:0 fail:0 skip:29 time:470s
fi-ivb-3770 total:285 pass:252 dwarn:0 dfail:0 fail:0 skip:33 time:438s
fi-kbl-7500u total:285 pass:260 dwarn:1 dfail:0 fail:0 skip:24 time:470s
fi-kbl-7567u total:285 pass:265 dwarn:0 dfail:0 fail:0 skip:20 time:461s
fi-kbl-r total:285 pass:258 dwarn:0 dfail:0 fail:0 skip:27 time:511s
fi-pnv-d510 total:285 pass:220 dwarn:1 dfail:0 fail:0 skip:64 time:642s
fi-skl-6260u total:285 pass:265 dwarn:0 dfail:0 fail:0 skip:20 time:444s
fi-skl-6600u total:285 pass:258 dwarn:0 dfail:0 fail:0 skip:27 time:535s
fi-skl-6700k2 total:285 pass:261 dwarn:0 dfail:0 fail:0 skip:24 time:502s
fi-skl-6770hq total:285 pass:265 dwarn:0 dfail:0 fail:0 skip:20 time:505s
fi-skl-guc total:285 pass:257 dwarn:0 dfail:0 fail:0 skip:28 time:426s
fi-skl-gvtdvm total:285 pass:262 dwarn:0 dfail:0 fail:0 skip:23 time:445s
fi-snb-2520m total:242 pass:208 dwarn:0 dfail:0 fail:0 skip:33
fi-snb-2600 total:285 pass:245 dwarn:0 dfail:0 fail:0 skip:40 time:400s
Blacklisted hosts:
fi-cnl-psr total:285 pass:256 dwarn:3 dfail:0 fail:0 skip:26 time:532s
0eddede73765b01ec287cad00e23bee23c216a16 drm-tip: 2018y-04m-05d-09h-51m-03s UTC integration manifest
3c0313db45b9 drm/i915: Only call finish_reset after a prepare_reset
== Logs ==
For more details see: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_8595/issues.html
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Intel-gfx mailing list
Intel-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/intel-gfx
^ permalink raw reply [flat|nested] 3+ messages in thread
* ✓ Fi.CI.IGT: success for drm/i915: Only call finish_reset after a prepare_reset
2018-04-05 12:37 [CI] drm/i915: Only call finish_reset after a prepare_reset Chris Wilson
2018-04-05 13:27 ` ✓ Fi.CI.BAT: success for " Patchwork
@ 2018-04-05 15:31 ` Patchwork
1 sibling, 0 replies; 3+ messages in thread
From: Patchwork @ 2018-04-05 15:31 UTC (permalink / raw)
To: Chris Wilson; +Cc: intel-gfx
== Series Details ==
Series: drm/i915: Only call finish_reset after a prepare_reset
URL : https://patchwork.freedesktop.org/series/41207/
State : success
== Summary ==
---- Possible new issues:
Test kms_cursor_legacy:
Subgroup cursor-vs-flip-toggle:
fail -> PASS (shard-hsw)
---- Known issues:
Test kms_frontbuffer_tracking:
Subgroup fbc-1p-primscrn-pri-indfb-draw-render:
fail -> PASS (shard-snb) fdo#103167
Test kms_setmode:
Subgroup basic:
fail -> PASS (shard-apl) fdo#99912
fdo#103167 https://bugs.freedesktop.org/show_bug.cgi?id=103167
fdo#99912 https://bugs.freedesktop.org/show_bug.cgi?id=99912
shard-apl total:2680 pass:1836 dwarn:1 dfail:0 fail:6 skip:836 time:12679s
shard-hsw total:2680 pass:1786 dwarn:1 dfail:0 fail:1 skip:891 time:11466s
shard-snb total:2680 pass:1376 dwarn:1 dfail:0 fail:4 skip:1299 time:6940s
Blacklisted hosts:
shard-kbl total:2680 pass:1961 dwarn:1 dfail:1 fail:7 skip:710 time:9202s
== Logs ==
For more details see: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_8595/shards.html
_______________________________________________
Intel-gfx mailing list
Intel-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/intel-gfx
^ permalink raw reply [flat|nested] 3+ messages in thread
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2018-04-05 12:37 [CI] drm/i915: Only call finish_reset after a prepare_reset Chris Wilson
2018-04-05 13:27 ` ✓ Fi.CI.BAT: success for " Patchwork
2018-04-05 15:31 ` ✓ Fi.CI.IGT: " Patchwork
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