| Message ID | 1430813849-25117-1-git-send-email-chris@chris-wilson.co.uk (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
Tested-By: Intel Graphics QA PRTS (Patch Regression Test System Contact: shuang.he@intel.com)
Task id: 6317
-------------------------------------Summary-------------------------------------
Platform Delta drm-intel-nightly Series Applied
PNV 276/276 276/276
ILK 302/302 302/302
SNB 316/316 316/316
IVB 342/342 342/342
BYT 286/286 286/286
BDW 318/318 318/318
-------------------------------------Detailed-------------------------------------
Platform Test drm-intel-nightly Series Applied
Note: You need to pay more attention to line start with '*'
On Tue, May 05, 2015 at 09:17:29AM +0100, Chris Wilson wrote: > [ 1572.417121] BUG: unable to handle kernel NULL pointer dereference at (null) > [ 1572.421010] IP: [<ffffffffa00b2514>] ftrace_raw_event_i915_context+0x5d/0x70 [i915] > [ 1572.424970] PGD 1766a3067 PUD 1767a2067 PMD 0 > [ 1572.428892] Oops: 0000 [#1] SMP > [ 1572.432787] Modules linked in: ipv6 dm_mod iTCO_wdt iTCO_vendor_support snd_hda_codec_realtek snd_hda_codec_generic snd_hda_intel snd_hda_controller snd_hda_codec snd_hda_core snd_hwdep snd_pcm snd_timer snd soundcore serio_raw pcspkr lpc_ich i2c_i801 mfd_core battery ac acpi_cpufreq i915 button video drm_kms_helper drm > [ 1572.441720] CPU: 2 PID: 18853 Comm: kworker/u8:0 Not tainted 4.0.0_kcloud_3f0360_20150429+ #588 > [ 1572.446298] Workqueue: i915 i915_gem_retire_work_handler [i915] > [ 1572.450876] task: ffff880002f428f0 ti: ffff880035724000 task.ti: ffff880035724000 > [ 1572.455557] RIP: 0010:[<ffffffffa00b2514>] [<ffffffffa00b2514>] ftrace_raw_event_i915_context+0x5d/0x70 [i915] > [ 1572.460423] RSP: 0018:ffff880035727ce8 EFLAGS: 00010286 > [ 1572.465262] RAX: ffff880073f1643c RBX: ffff880002da9058 RCX: ffff880073e5db40 > [ 1572.470179] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff880035727ce8 > [ 1572.475107] RBP: ffff88007bb11a00 R08: 0000000000000000 R09: 0000000000000000 > [ 1572.480034] R10: 0000000000362200 R11: 0000000000000008 R12: 0000000000000000 > [ 1572.484952] R13: ffff880035727d78 R14: ffff880002dc1c98 R15: ffff880002dc1dc8 > [ 1572.489886] FS: 0000000000000000(0000) GS:ffff88017fd00000(0000) knlGS:0000000000000000 > [ 1572.494883] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b > [ 1572.499859] CR2: 0000000000000000 CR3: 000000017572a000 CR4: 00000000001006e0 > [ 1572.504842] Stack: > [ 1572.509834] ffff88017b0090c0 ffff880073f16438 ffff880002da9058 ffff880073f1643c > [ 1572.514904] 0000000000000246 ffff880100000000 ffff88007bb11a00 ffff880002ddeb10 > [ 1572.519985] ffff8801759f79c0 ffffffffa0092ff0 0000000000000000 ffff88007bb11a00 > [ 1572.525049] Call Trace: > [ 1572.530093] [<ffffffffa0092ff0>] ? i915_gem_context_free+0xa8/0xc1 [i915] > [ 1572.535227] [<ffffffffa009b969>] ? i915_gem_request_free+0x4e/0x50 [i915] > [ 1572.540347] [<ffffffffa00b5533>] ? intel_execlists_retire_requests+0x14c/0x159 [i915] > [ 1572.545500] [<ffffffffa009d9ea>] ? i915_gem_retire_requests+0x9d/0xeb [i915] > [ 1572.550664] [<ffffffffa009dd8c>] ? i915_gem_retire_work_handler+0x4c/0x61 [i915] > [ 1572.555825] [<ffffffff8104ca7f>] ? process_one_work+0x1b2/0x31d > [ 1572.560951] [<ffffffff8104d278>] ? worker_thread+0x24d/0x339 > [ 1572.566033] [<ffffffff8104d02b>] ? cancel_delayed_work_sync+0xa/0xa > [ 1572.571140] [<ffffffff81050b25>] ? kthread+0xce/0xd6 > [ 1572.576191] [<ffffffff81050a57>] ? kthread_create_on_node+0x162/0x162 > [ 1572.581228] [<ffffffff8179b3c8>] ? ret_from_fork+0x58/0x90 > [ 1572.586259] [<ffffffff81050a57>] ? kthread_create_on_node+0x162/0x162 > [ 1572.591318] Code: de 48 89 e7 e8 09 4d 00 e1 48 85 c0 74 27 48 89 68 10 48 8b 55 38 48 89 e7 48 89 50 18 48 8b 55 10 48 8b 12 48 8b 12 48 8b 52 38 <8b> 12 89 50 08 e8 95 4d 00 e1 48 83 c4 30 5b 5d 41 5c c3 41 55 > [ 1572.596981] RIP [<ffffffffa00b2514>] ftrace_raw_event_i915_context+0x5d/0x70 [i915] > [ 1572.602464] RSP <ffff880035727ce8> > [ 1572.607911] CR2: 0000000000000000 > > Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=90112#c23 > Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Could we do an igt for this, maybe using the sysfs trace interface? -Daniel > --- > drivers/gpu/drm/i915/i915_drv.h | 1 + > drivers/gpu/drm/i915/i915_gem_context.c | 4 ++-- > drivers/gpu/drm/i915/i915_trace.h | 2 +- > 3 files changed, 4 insertions(+), 3 deletions(-) > > diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h > index 70906ac0665e..94e54c3e7cb6 100644 > --- a/drivers/gpu/drm/i915/i915_drv.h > +++ b/drivers/gpu/drm/i915/i915_drv.h > @@ -822,6 +822,7 @@ struct intel_context { > struct kref ref; > int user_handle; > uint8_t remap_slice; > + struct drm_i915_private *i915; > struct drm_i915_file_private *file_priv; > struct i915_ctx_hang_stats hang_stats; > struct i915_hw_ppgtt *ppgtt; > diff --git a/drivers/gpu/drm/i915/i915_gem_context.c b/drivers/gpu/drm/i915/i915_gem_context.c > index 454090a61e65..b4a34ae5bdbe 100644 > --- a/drivers/gpu/drm/i915/i915_gem_context.c > +++ b/drivers/gpu/drm/i915/i915_gem_context.c > @@ -203,8 +203,7 @@ static void decouple_vma(struct intel_context *ctx) > > void i915_gem_context_free(struct kref *ctx_ref) > { > - struct intel_context *ctx = container_of(ctx_ref, > - typeof(*ctx), ref); > + struct intel_context *ctx = container_of(ctx_ref, typeof(*ctx), ref); > > trace_i915_context_free(ctx); > > @@ -274,6 +273,7 @@ __create_hw_context(struct drm_device *dev, > > kref_init(&ctx->ref); > list_add_tail(&ctx->link, &dev_priv->context_list); > + ctx->i915 = dev_priv; > > ctx->vma_ht_bits = 6; > ctx->vma_ht_size = 1 << ctx->vma_ht_bits; > diff --git a/drivers/gpu/drm/i915/i915_trace.h b/drivers/gpu/drm/i915/i915_trace.h > index b9fadec3fa98..4709a49e6775 100644 > --- a/drivers/gpu/drm/i915/i915_trace.h > +++ b/drivers/gpu/drm/i915/i915_trace.h > @@ -714,7 +714,7 @@ DECLARE_EVENT_CLASS(i915_context, > TP_fast_assign( > __entry->ctx = ctx; > __entry->vm = ctx->ppgtt ? &ctx->ppgtt->base : NULL; > - __entry->dev = ctx->file_priv->dev_priv->dev->primary->index; > + __entry->dev = ctx->i915->dev->primary->index; > ), > > TP_printk("dev=%u, ctx=%p, ctx_vm=%p", > -- > 2.1.4 > > _______________________________________________ > Intel-gfx mailing list > Intel-gfx@lists.freedesktop.org > http://lists.freedesktop.org/mailman/listinfo/intel-gfx
On Wed, May 06, 2015 at 01:16:30PM +0200, Daniel Vetter wrote: > On Tue, May 05, 2015 at 09:17:29AM +0100, Chris Wilson wrote: > > [ 1572.417121] BUG: unable to handle kernel NULL pointer dereference at (null) > > [ 1572.421010] IP: [<ffffffffa00b2514>] ftrace_raw_event_i915_context+0x5d/0x70 [i915] > > [ 1572.424970] PGD 1766a3067 PUD 1767a2067 PMD 0 > > [ 1572.428892] Oops: 0000 [#1] SMP > > [ 1572.432787] Modules linked in: ipv6 dm_mod iTCO_wdt iTCO_vendor_support snd_hda_codec_realtek snd_hda_codec_generic snd_hda_intel snd_hda_controller snd_hda_codec snd_hda_core snd_hwdep snd_pcm snd_timer snd soundcore serio_raw pcspkr lpc_ich i2c_i801 mfd_core battery ac acpi_cpufreq i915 button video drm_kms_helper drm > > [ 1572.441720] CPU: 2 PID: 18853 Comm: kworker/u8:0 Not tainted 4.0.0_kcloud_3f0360_20150429+ #588 > > [ 1572.446298] Workqueue: i915 i915_gem_retire_work_handler [i915] > > [ 1572.450876] task: ffff880002f428f0 ti: ffff880035724000 task.ti: ffff880035724000 > > [ 1572.455557] RIP: 0010:[<ffffffffa00b2514>] [<ffffffffa00b2514>] ftrace_raw_event_i915_context+0x5d/0x70 [i915] > > [ 1572.460423] RSP: 0018:ffff880035727ce8 EFLAGS: 00010286 > > [ 1572.465262] RAX: ffff880073f1643c RBX: ffff880002da9058 RCX: ffff880073e5db40 > > [ 1572.470179] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff880035727ce8 > > [ 1572.475107] RBP: ffff88007bb11a00 R08: 0000000000000000 R09: 0000000000000000 > > [ 1572.480034] R10: 0000000000362200 R11: 0000000000000008 R12: 0000000000000000 > > [ 1572.484952] R13: ffff880035727d78 R14: ffff880002dc1c98 R15: ffff880002dc1dc8 > > [ 1572.489886] FS: 0000000000000000(0000) GS:ffff88017fd00000(0000) knlGS:0000000000000000 > > [ 1572.494883] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b > > [ 1572.499859] CR2: 0000000000000000 CR3: 000000017572a000 CR4: 00000000001006e0 > > [ 1572.504842] Stack: > > [ 1572.509834] ffff88017b0090c0 ffff880073f16438 ffff880002da9058 ffff880073f1643c > > [ 1572.514904] 0000000000000246 ffff880100000000 ffff88007bb11a00 ffff880002ddeb10 > > [ 1572.519985] ffff8801759f79c0 ffffffffa0092ff0 0000000000000000 ffff88007bb11a00 > > [ 1572.525049] Call Trace: > > [ 1572.530093] [<ffffffffa0092ff0>] ? i915_gem_context_free+0xa8/0xc1 [i915] > > [ 1572.535227] [<ffffffffa009b969>] ? i915_gem_request_free+0x4e/0x50 [i915] > > [ 1572.540347] [<ffffffffa00b5533>] ? intel_execlists_retire_requests+0x14c/0x159 [i915] > > [ 1572.545500] [<ffffffffa009d9ea>] ? i915_gem_retire_requests+0x9d/0xeb [i915] > > [ 1572.550664] [<ffffffffa009dd8c>] ? i915_gem_retire_work_handler+0x4c/0x61 [i915] > > [ 1572.555825] [<ffffffff8104ca7f>] ? process_one_work+0x1b2/0x31d > > [ 1572.560951] [<ffffffff8104d278>] ? worker_thread+0x24d/0x339 > > [ 1572.566033] [<ffffffff8104d02b>] ? cancel_delayed_work_sync+0xa/0xa > > [ 1572.571140] [<ffffffff81050b25>] ? kthread+0xce/0xd6 > > [ 1572.576191] [<ffffffff81050a57>] ? kthread_create_on_node+0x162/0x162 > > [ 1572.581228] [<ffffffff8179b3c8>] ? ret_from_fork+0x58/0x90 > > [ 1572.586259] [<ffffffff81050a57>] ? kthread_create_on_node+0x162/0x162 > > [ 1572.591318] Code: de 48 89 e7 e8 09 4d 00 e1 48 85 c0 74 27 48 89 68 10 48 8b 55 38 48 89 e7 48 89 50 18 48 8b 55 10 48 8b 12 48 8b 12 48 8b 52 38 <8b> 12 89 50 08 e8 95 4d 00 e1 48 83 c4 30 5b 5d 41 5c c3 41 55 > > [ 1572.596981] RIP [<ffffffffa00b2514>] ftrace_raw_event_i915_context+0x5d/0x70 [i915] > > [ 1572.602464] RSP <ffff880035727ce8> > > [ 1572.607911] CR2: 0000000000000000 > > > > Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=90112#c23 > > Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> > > Could we do an igt for this, maybe using the sysfs trace interface? I wonder if it is as simple as: tracefs=/sys/kernel/tracing function set_tracing { for i in `find $tracefs/i915 -name enable`; do $i echo $1 > $i done echo $1 > $tracefs/enable } set_tracing 1 ./gem_ctx_basic ./gem_foo_basic ./gem_bar_basic ./gem_baz_basic set_tracing 0 -Chris
On Thu, 07 May 2015, Chris Wilson <chris@chris-wilson.co.uk> wrote: > On Wed, May 06, 2015 at 01:16:30PM +0200, Daniel Vetter wrote: >> On Tue, May 05, 2015 at 09:17:29AM +0100, Chris Wilson wrote: >> > [ 1572.417121] BUG: unable to handle kernel NULL pointer dereference at (null) >> > [ 1572.421010] IP: [<ffffffffa00b2514>] ftrace_raw_event_i915_context+0x5d/0x70 [i915] >> > [ 1572.424970] PGD 1766a3067 PUD 1767a2067 PMD 0 >> > [ 1572.428892] Oops: 0000 [#1] SMP >> > [ 1572.432787] Modules linked in: ipv6 dm_mod iTCO_wdt iTCO_vendor_support snd_hda_codec_realtek snd_hda_codec_generic snd_hda_intel snd_hda_controller snd_hda_codec snd_hda_core snd_hwdep snd_pcm snd_timer snd soundcore serio_raw pcspkr lpc_ich i2c_i801 mfd_core battery ac acpi_cpufreq i915 button video drm_kms_helper drm >> > [ 1572.441720] CPU: 2 PID: 18853 Comm: kworker/u8:0 Not tainted 4.0.0_kcloud_3f0360_20150429+ #588 >> > [ 1572.446298] Workqueue: i915 i915_gem_retire_work_handler [i915] >> > [ 1572.450876] task: ffff880002f428f0 ti: ffff880035724000 task.ti: ffff880035724000 >> > [ 1572.455557] RIP: 0010:[<ffffffffa00b2514>] [<ffffffffa00b2514>] ftrace_raw_event_i915_context+0x5d/0x70 [i915] >> > [ 1572.460423] RSP: 0018:ffff880035727ce8 EFLAGS: 00010286 >> > [ 1572.465262] RAX: ffff880073f1643c RBX: ffff880002da9058 RCX: ffff880073e5db40 >> > [ 1572.470179] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff880035727ce8 >> > [ 1572.475107] RBP: ffff88007bb11a00 R08: 0000000000000000 R09: 0000000000000000 >> > [ 1572.480034] R10: 0000000000362200 R11: 0000000000000008 R12: 0000000000000000 >> > [ 1572.484952] R13: ffff880035727d78 R14: ffff880002dc1c98 R15: ffff880002dc1dc8 >> > [ 1572.489886] FS: 0000000000000000(0000) GS:ffff88017fd00000(0000) knlGS:0000000000000000 >> > [ 1572.494883] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b >> > [ 1572.499859] CR2: 0000000000000000 CR3: 000000017572a000 CR4: 00000000001006e0 >> > [ 1572.504842] Stack: >> > [ 1572.509834] ffff88017b0090c0 ffff880073f16438 ffff880002da9058 ffff880073f1643c >> > [ 1572.514904] 0000000000000246 ffff880100000000 ffff88007bb11a00 ffff880002ddeb10 >> > [ 1572.519985] ffff8801759f79c0 ffffffffa0092ff0 0000000000000000 ffff88007bb11a00 >> > [ 1572.525049] Call Trace: >> > [ 1572.530093] [<ffffffffa0092ff0>] ? i915_gem_context_free+0xa8/0xc1 [i915] >> > [ 1572.535227] [<ffffffffa009b969>] ? i915_gem_request_free+0x4e/0x50 [i915] >> > [ 1572.540347] [<ffffffffa00b5533>] ? intel_execlists_retire_requests+0x14c/0x159 [i915] >> > [ 1572.545500] [<ffffffffa009d9ea>] ? i915_gem_retire_requests+0x9d/0xeb [i915] >> > [ 1572.550664] [<ffffffffa009dd8c>] ? i915_gem_retire_work_handler+0x4c/0x61 [i915] >> > [ 1572.555825] [<ffffffff8104ca7f>] ? process_one_work+0x1b2/0x31d >> > [ 1572.560951] [<ffffffff8104d278>] ? worker_thread+0x24d/0x339 >> > [ 1572.566033] [<ffffffff8104d02b>] ? cancel_delayed_work_sync+0xa/0xa >> > [ 1572.571140] [<ffffffff81050b25>] ? kthread+0xce/0xd6 >> > [ 1572.576191] [<ffffffff81050a57>] ? kthread_create_on_node+0x162/0x162 >> > [ 1572.581228] [<ffffffff8179b3c8>] ? ret_from_fork+0x58/0x90 >> > [ 1572.586259] [<ffffffff81050a57>] ? kthread_create_on_node+0x162/0x162 >> > [ 1572.591318] Code: de 48 89 e7 e8 09 4d 00 e1 48 85 c0 74 27 48 89 68 10 48 8b 55 38 48 89 e7 48 89 50 18 48 8b 55 10 48 8b 12 48 8b 12 48 8b 52 38 <8b> 12 89 50 08 e8 95 4d 00 e1 48 83 c4 30 5b 5d 41 5c c3 41 55 >> > [ 1572.596981] RIP [<ffffffffa00b2514>] ftrace_raw_event_i915_context+0x5d/0x70 [i915] >> > [ 1572.602464] RSP <ffff880035727ce8> >> > [ 1572.607911] CR2: 0000000000000000 >> > >> > Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=90112#c23 >> > Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> >> >> Could we do an igt for this, maybe using the sysfs trace interface? > > I wonder if it is as simple as: > > tracefs=/sys/kernel/tracing > > function set_tracing { > for i in `find $tracefs/i915 -name enable`; do $i > echo $1 > $i > done > echo $1 > $tracefs/enable > } > > set_tracing 1 > > ./gem_ctx_basic > ./gem_foo_basic > ./gem_bar_basic > ./gem_baz_basic > > set_tracing 0 Is the patch still valid? Dropping from my fixes queue, please resubmit if needed. BR, Jani. > -Chris > > -- > Chris Wilson, Intel Open Source Technology Centre > _______________________________________________ > Intel-gfx mailing list > Intel-gfx@lists.freedesktop.org > http://lists.freedesktop.org/mailman/listinfo/intel-gfx
On Mon, Jun 29, 2015 at 02:40:15PM +0300, Jani Nikula wrote: > On Thu, 07 May 2015, Chris Wilson <chris@chris-wilson.co.uk> wrote: > > On Wed, May 06, 2015 at 01:16:30PM +0200, Daniel Vetter wrote: > >> On Tue, May 05, 2015 at 09:17:29AM +0100, Chris Wilson wrote: > >> > [ 1572.417121] BUG: unable to handle kernel NULL pointer dereference at (null) > >> > [ 1572.421010] IP: [<ffffffffa00b2514>] ftrace_raw_event_i915_context+0x5d/0x70 [i915] > >> > [ 1572.424970] PGD 1766a3067 PUD 1767a2067 PMD 0 > >> > [ 1572.428892] Oops: 0000 [#1] SMP > >> > [ 1572.432787] Modules linked in: ipv6 dm_mod iTCO_wdt iTCO_vendor_support snd_hda_codec_realtek snd_hda_codec_generic snd_hda_intel snd_hda_controller snd_hda_codec snd_hda_core snd_hwdep snd_pcm snd_timer snd soundcore serio_raw pcspkr lpc_ich i2c_i801 mfd_core battery ac acpi_cpufreq i915 button video drm_kms_helper drm > >> > [ 1572.441720] CPU: 2 PID: 18853 Comm: kworker/u8:0 Not tainted 4.0.0_kcloud_3f0360_20150429+ #588 > >> > [ 1572.446298] Workqueue: i915 i915_gem_retire_work_handler [i915] > >> > [ 1572.450876] task: ffff880002f428f0 ti: ffff880035724000 task.ti: ffff880035724000 > >> > [ 1572.455557] RIP: 0010:[<ffffffffa00b2514>] [<ffffffffa00b2514>] ftrace_raw_event_i915_context+0x5d/0x70 [i915] > >> > [ 1572.460423] RSP: 0018:ffff880035727ce8 EFLAGS: 00010286 > >> > [ 1572.465262] RAX: ffff880073f1643c RBX: ffff880002da9058 RCX: ffff880073e5db40 > >> > [ 1572.470179] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff880035727ce8 > >> > [ 1572.475107] RBP: ffff88007bb11a00 R08: 0000000000000000 R09: 0000000000000000 > >> > [ 1572.480034] R10: 0000000000362200 R11: 0000000000000008 R12: 0000000000000000 > >> > [ 1572.484952] R13: ffff880035727d78 R14: ffff880002dc1c98 R15: ffff880002dc1dc8 > >> > [ 1572.489886] FS: 0000000000000000(0000) GS:ffff88017fd00000(0000) knlGS:0000000000000000 > >> > [ 1572.494883] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b > >> > [ 1572.499859] CR2: 0000000000000000 CR3: 000000017572a000 CR4: 00000000001006e0 > >> > [ 1572.504842] Stack: > >> > [ 1572.509834] ffff88017b0090c0 ffff880073f16438 ffff880002da9058 ffff880073f1643c > >> > [ 1572.514904] 0000000000000246 ffff880100000000 ffff88007bb11a00 ffff880002ddeb10 > >> > [ 1572.519985] ffff8801759f79c0 ffffffffa0092ff0 0000000000000000 ffff88007bb11a00 > >> > [ 1572.525049] Call Trace: > >> > [ 1572.530093] [<ffffffffa0092ff0>] ? i915_gem_context_free+0xa8/0xc1 [i915] > >> > [ 1572.535227] [<ffffffffa009b969>] ? i915_gem_request_free+0x4e/0x50 [i915] > >> > [ 1572.540347] [<ffffffffa00b5533>] ? intel_execlists_retire_requests+0x14c/0x159 [i915] > >> > [ 1572.545500] [<ffffffffa009d9ea>] ? i915_gem_retire_requests+0x9d/0xeb [i915] > >> > [ 1572.550664] [<ffffffffa009dd8c>] ? i915_gem_retire_work_handler+0x4c/0x61 [i915] > >> > [ 1572.555825] [<ffffffff8104ca7f>] ? process_one_work+0x1b2/0x31d > >> > [ 1572.560951] [<ffffffff8104d278>] ? worker_thread+0x24d/0x339 > >> > [ 1572.566033] [<ffffffff8104d02b>] ? cancel_delayed_work_sync+0xa/0xa > >> > [ 1572.571140] [<ffffffff81050b25>] ? kthread+0xce/0xd6 > >> > [ 1572.576191] [<ffffffff81050a57>] ? kthread_create_on_node+0x162/0x162 > >> > [ 1572.581228] [<ffffffff8179b3c8>] ? ret_from_fork+0x58/0x90 > >> > [ 1572.586259] [<ffffffff81050a57>] ? kthread_create_on_node+0x162/0x162 > >> > [ 1572.591318] Code: de 48 89 e7 e8 09 4d 00 e1 48 85 c0 74 27 48 89 68 10 48 8b 55 38 48 89 e7 48 89 50 18 48 8b 55 10 48 8b 12 48 8b 12 48 8b 52 38 <8b> 12 89 50 08 e8 95 4d 00 e1 48 83 c4 30 5b 5d 41 5c c3 41 55 > >> > [ 1572.596981] RIP [<ffffffffa00b2514>] ftrace_raw_event_i915_context+0x5d/0x70 [i915] > >> > [ 1572.602464] RSP <ffff880035727ce8> > >> > [ 1572.607911] CR2: 0000000000000000 > >> > > >> > Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=90112#c23 > >> > Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> > >> > >> Could we do an igt for this, maybe using the sysfs trace interface? > > > > I wonder if it is as simple as: > > > > tracefs=/sys/kernel/tracing > > > > function set_tracing { > > for i in `find $tracefs/i915 -name enable`; do $i > > echo $1 > $i > > done > > echo $1 > $tracefs/enable > > } > > > > set_tracing 1 > > > > ./gem_ctx_basic > > ./gem_foo_basic > > ./gem_bar_basic > > ./gem_baz_basic > > > > set_tracing 0 > > Is the patch still valid? Yes. -Chris
On Mon, 29 Jun 2015, Chris Wilson <chris@chris-wilson.co.uk> wrote: > On Mon, Jun 29, 2015 at 02:40:15PM +0300, Jani Nikula wrote: >> On Thu, 07 May 2015, Chris Wilson <chris@chris-wilson.co.uk> wrote: >> > On Wed, May 06, 2015 at 01:16:30PM +0200, Daniel Vetter wrote: >> >> On Tue, May 05, 2015 at 09:17:29AM +0100, Chris Wilson wrote: >> >> > [ 1572.417121] BUG: unable to handle kernel NULL pointer dereference at (null) >> >> > [ 1572.421010] IP: [<ffffffffa00b2514>] ftrace_raw_event_i915_context+0x5d/0x70 [i915] >> >> > [ 1572.424970] PGD 1766a3067 PUD 1767a2067 PMD 0 >> >> > [ 1572.428892] Oops: 0000 [#1] SMP >> >> > [ 1572.432787] Modules linked in: ipv6 dm_mod iTCO_wdt iTCO_vendor_support snd_hda_codec_realtek snd_hda_codec_generic snd_hda_intel snd_hda_controller snd_hda_codec snd_hda_core snd_hwdep snd_pcm snd_timer snd soundcore serio_raw pcspkr lpc_ich i2c_i801 mfd_core battery ac acpi_cpufreq i915 button video drm_kms_helper drm >> >> > [ 1572.441720] CPU: 2 PID: 18853 Comm: kworker/u8:0 Not tainted 4.0.0_kcloud_3f0360_20150429+ #588 >> >> > [ 1572.446298] Workqueue: i915 i915_gem_retire_work_handler [i915] >> >> > [ 1572.450876] task: ffff880002f428f0 ti: ffff880035724000 task.ti: ffff880035724000 >> >> > [ 1572.455557] RIP: 0010:[<ffffffffa00b2514>] [<ffffffffa00b2514>] ftrace_raw_event_i915_context+0x5d/0x70 [i915] >> >> > [ 1572.460423] RSP: 0018:ffff880035727ce8 EFLAGS: 00010286 >> >> > [ 1572.465262] RAX: ffff880073f1643c RBX: ffff880002da9058 RCX: ffff880073e5db40 >> >> > [ 1572.470179] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff880035727ce8 >> >> > [ 1572.475107] RBP: ffff88007bb11a00 R08: 0000000000000000 R09: 0000000000000000 >> >> > [ 1572.480034] R10: 0000000000362200 R11: 0000000000000008 R12: 0000000000000000 >> >> > [ 1572.484952] R13: ffff880035727d78 R14: ffff880002dc1c98 R15: ffff880002dc1dc8 >> >> > [ 1572.489886] FS: 0000000000000000(0000) GS:ffff88017fd00000(0000) knlGS:0000000000000000 >> >> > [ 1572.494883] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b >> >> > [ 1572.499859] CR2: 0000000000000000 CR3: 000000017572a000 CR4: 00000000001006e0 >> >> > [ 1572.504842] Stack: >> >> > [ 1572.509834] ffff88017b0090c0 ffff880073f16438 ffff880002da9058 ffff880073f1643c >> >> > [ 1572.514904] 0000000000000246 ffff880100000000 ffff88007bb11a00 ffff880002ddeb10 >> >> > [ 1572.519985] ffff8801759f79c0 ffffffffa0092ff0 0000000000000000 ffff88007bb11a00 >> >> > [ 1572.525049] Call Trace: >> >> > [ 1572.530093] [<ffffffffa0092ff0>] ? i915_gem_context_free+0xa8/0xc1 [i915] >> >> > [ 1572.535227] [<ffffffffa009b969>] ? i915_gem_request_free+0x4e/0x50 [i915] >> >> > [ 1572.540347] [<ffffffffa00b5533>] ? intel_execlists_retire_requests+0x14c/0x159 [i915] >> >> > [ 1572.545500] [<ffffffffa009d9ea>] ? i915_gem_retire_requests+0x9d/0xeb [i915] >> >> > [ 1572.550664] [<ffffffffa009dd8c>] ? i915_gem_retire_work_handler+0x4c/0x61 [i915] >> >> > [ 1572.555825] [<ffffffff8104ca7f>] ? process_one_work+0x1b2/0x31d >> >> > [ 1572.560951] [<ffffffff8104d278>] ? worker_thread+0x24d/0x339 >> >> > [ 1572.566033] [<ffffffff8104d02b>] ? cancel_delayed_work_sync+0xa/0xa >> >> > [ 1572.571140] [<ffffffff81050b25>] ? kthread+0xce/0xd6 >> >> > [ 1572.576191] [<ffffffff81050a57>] ? kthread_create_on_node+0x162/0x162 >> >> > [ 1572.581228] [<ffffffff8179b3c8>] ? ret_from_fork+0x58/0x90 >> >> > [ 1572.586259] [<ffffffff81050a57>] ? kthread_create_on_node+0x162/0x162 >> >> > [ 1572.591318] Code: de 48 89 e7 e8 09 4d 00 e1 48 85 c0 74 27 48 89 68 10 48 8b 55 38 48 89 e7 48 89 50 18 48 8b 55 10 48 8b 12 48 8b 12 48 8b 52 38 <8b> 12 89 50 08 e8 95 4d 00 e1 48 83 c4 30 5b 5d 41 5c c3 41 55 >> >> > [ 1572.596981] RIP [<ffffffffa00b2514>] ftrace_raw_event_i915_context+0x5d/0x70 [i915] >> >> > [ 1572.602464] RSP <ffff880035727ce8> >> >> > [ 1572.607911] CR2: 0000000000000000 >> >> > >> >> > Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=90112#c23 >> >> > Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> >> >> >> >> Could we do an igt for this, maybe using the sysfs trace interface? >> > >> > I wonder if it is as simple as: >> > >> > tracefs=/sys/kernel/tracing >> > >> > function set_tracing { >> > for i in `find $tracefs/i915 -name enable`; do $i >> > echo $1 > $i >> > done >> > echo $1 > $tracefs/enable >> > } >> > >> > set_tracing 1 >> > >> > ./gem_ctx_basic >> > ./gem_foo_basic >> > ./gem_bar_basic >> > ./gem_baz_basic >> > >> > set_tracing 0 >> >> Is the patch still valid? > > Yes. I could use some review here.... > -Chris > > -- > Chris Wilson, Intel Open Source Technology Centre
On 29/06/2015 12:49, Jani Nikula wrote: > On Mon, 29 Jun 2015, Chris Wilson <chris@chris-wilson.co.uk> wrote: >> On Mon, Jun 29, 2015 at 02:40:15PM +0300, Jani Nikula wrote: >>> On Thu, 07 May 2015, Chris Wilson <chris@chris-wilson.co.uk> wrote: >>>> On Wed, May 06, 2015 at 01:16:30PM +0200, Daniel Vetter wrote: >>>>> On Tue, May 05, 2015 at 09:17:29AM +0100, Chris Wilson wrote: >>>>>> [ 1572.417121] BUG: unable to handle kernel NULL pointer dereference at (null) >>>>>> [ 1572.421010] IP: [<ffffffffa00b2514>] ftrace_raw_event_i915_context+0x5d/0x70 [i915] >>>>>> [ 1572.424970] PGD 1766a3067 PUD 1767a2067 PMD 0 >>>>>> [ 1572.428892] Oops: 0000 [#1] SMP >>>>>> [ 1572.432787] Modules linked in: ipv6 dm_mod iTCO_wdt iTCO_vendor_support snd_hda_codec_realtek snd_hda_codec_generic snd_hda_intel snd_hda_controller snd_hda_codec snd_hda_core snd_hwdep snd_pcm snd_timer snd soundcore serio_raw pcspkr lpc_ich i2c_i801 mfd_core battery ac acpi_cpufreq i915 button video drm_kms_helper drm >>>>>> [ 1572.441720] CPU: 2 PID: 18853 Comm: kworker/u8:0 Not tainted 4.0.0_kcloud_3f0360_20150429+ #588 >>>>>> [ 1572.446298] Workqueue: i915 i915_gem_retire_work_handler [i915] >>>>>> [ 1572.450876] task: ffff880002f428f0 ti: ffff880035724000 task.ti: ffff880035724000 >>>>>> [ 1572.455557] RIP: 0010:[<ffffffffa00b2514>] [<ffffffffa00b2514>] ftrace_raw_event_i915_context+0x5d/0x70 [i915] >>>>>> [ 1572.460423] RSP: 0018:ffff880035727ce8 EFLAGS: 00010286 >>>>>> [ 1572.465262] RAX: ffff880073f1643c RBX: ffff880002da9058 RCX: ffff880073e5db40 >>>>>> [ 1572.470179] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff880035727ce8 >>>>>> [ 1572.475107] RBP: ffff88007bb11a00 R08: 0000000000000000 R09: 0000000000000000 >>>>>> [ 1572.480034] R10: 0000000000362200 R11: 0000000000000008 R12: 0000000000000000 >>>>>> [ 1572.484952] R13: ffff880035727d78 R14: ffff880002dc1c98 R15: ffff880002dc1dc8 >>>>>> [ 1572.489886] FS: 0000000000000000(0000) GS:ffff88017fd00000(0000) knlGS:0000000000000000 >>>>>> [ 1572.494883] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b >>>>>> [ 1572.499859] CR2: 0000000000000000 CR3: 000000017572a000 CR4: 00000000001006e0 >>>>>> [ 1572.504842] Stack: >>>>>> [ 1572.509834] ffff88017b0090c0 ffff880073f16438 ffff880002da9058 ffff880073f1643c >>>>>> [ 1572.514904] 0000000000000246 ffff880100000000 ffff88007bb11a00 ffff880002ddeb10 >>>>>> [ 1572.519985] ffff8801759f79c0 ffffffffa0092ff0 0000000000000000 ffff88007bb11a00 >>>>>> [ 1572.525049] Call Trace: >>>>>> [ 1572.530093] [<ffffffffa0092ff0>] ? i915_gem_context_free+0xa8/0xc1 [i915] >>>>>> [ 1572.535227] [<ffffffffa009b969>] ? i915_gem_request_free+0x4e/0x50 [i915] >>>>>> [ 1572.540347] [<ffffffffa00b5533>] ? intel_execlists_retire_requests+0x14c/0x159 [i915] >>>>>> [ 1572.545500] [<ffffffffa009d9ea>] ? i915_gem_retire_requests+0x9d/0xeb [i915] >>>>>> [ 1572.550664] [<ffffffffa009dd8c>] ? i915_gem_retire_work_handler+0x4c/0x61 [i915] >>>>>> [ 1572.555825] [<ffffffff8104ca7f>] ? process_one_work+0x1b2/0x31d >>>>>> [ 1572.560951] [<ffffffff8104d278>] ? worker_thread+0x24d/0x339 >>>>>> [ 1572.566033] [<ffffffff8104d02b>] ? cancel_delayed_work_sync+0xa/0xa >>>>>> [ 1572.571140] [<ffffffff81050b25>] ? kthread+0xce/0xd6 >>>>>> [ 1572.576191] [<ffffffff81050a57>] ? kthread_create_on_node+0x162/0x162 >>>>>> [ 1572.581228] [<ffffffff8179b3c8>] ? ret_from_fork+0x58/0x90 >>>>>> [ 1572.586259] [<ffffffff81050a57>] ? kthread_create_on_node+0x162/0x162 >>>>>> [ 1572.591318] Code: de 48 89 e7 e8 09 4d 00 e1 48 85 c0 74 27 48 89 68 10 48 8b 55 38 48 89 e7 48 89 50 18 48 8b 55 10 48 8b 12 48 8b 12 48 8b 52 38 <8b> 12 89 50 08 e8 95 4d 00 e1 48 83 c4 30 5b 5d 41 5c c3 41 55 >>>>>> [ 1572.596981] RIP [<ffffffffa00b2514>] ftrace_raw_event_i915_context+0x5d/0x70 [i915] >>>>>> [ 1572.602464] RSP <ffff880035727ce8> >>>>>> [ 1572.607911] CR2: 0000000000000000 >>>>>> >>>>>> Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=90112#c23 >>>>>> Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> >>>>> >>>>> Could we do an igt for this, maybe using the sysfs trace interface? >>>> >>>> I wonder if it is as simple as: >>>> >>>> tracefs=/sys/kernel/tracing >>>> >>>> function set_tracing { >>>> for i in `find $tracefs/i915 -name enable`; do $i >>>> echo $1 > $i >>>> done >>>> echo $1 > $tracefs/enable >>>> } >>>> >>>> set_tracing 1 >>>> >>>> ./gem_ctx_basic >>>> ./gem_foo_basic >>>> ./gem_bar_basic >>>> ./gem_baz_basic >>>> >>>> set_tracing 0 >>> >>> Is the patch still valid? >> >> Yes. > > I could use some review here.... I had to rebase the patch to apply it, but apart from that: Tested-by: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com> Reviewed-by: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com> Daniele > > >> -Chris >> >> -- >> Chris Wilson, Intel Open Source Technology Centre >
On Thu, Jul 09, 2015 at 10:41:36AM +0100, Ceraolo Spurio, Daniele wrote: > On 29/06/2015 12:49, Jani Nikula wrote: > >On Mon, 29 Jun 2015, Chris Wilson <chris@chris-wilson.co.uk> wrote: > >>On Mon, Jun 29, 2015 at 02:40:15PM +0300, Jani Nikula wrote: > >>>On Thu, 07 May 2015, Chris Wilson <chris@chris-wilson.co.uk> wrote: > >>>>On Wed, May 06, 2015 at 01:16:30PM +0200, Daniel Vetter wrote: > >>>>>On Tue, May 05, 2015 at 09:17:29AM +0100, Chris Wilson wrote: > >>>>>>[ 1572.417121] BUG: unable to handle kernel NULL pointer dereference at (null) > >>>>>>[ 1572.421010] IP: [<ffffffffa00b2514>] ftrace_raw_event_i915_context+0x5d/0x70 [i915] > >>>>>>[ 1572.424970] PGD 1766a3067 PUD 1767a2067 PMD 0 > >>>>>>[ 1572.428892] Oops: 0000 [#1] SMP > >>>>>>[ 1572.432787] Modules linked in: ipv6 dm_mod iTCO_wdt iTCO_vendor_support snd_hda_codec_realtek snd_hda_codec_generic snd_hda_intel snd_hda_controller snd_hda_codec snd_hda_core snd_hwdep snd_pcm snd_timer snd soundcore serio_raw pcspkr lpc_ich i2c_i801 mfd_core battery ac acpi_cpufreq i915 button video drm_kms_helper drm > >>>>>>[ 1572.441720] CPU: 2 PID: 18853 Comm: kworker/u8:0 Not tainted 4.0.0_kcloud_3f0360_20150429+ #588 > >>>>>>[ 1572.446298] Workqueue: i915 i915_gem_retire_work_handler [i915] > >>>>>>[ 1572.450876] task: ffff880002f428f0 ti: ffff880035724000 task.ti: ffff880035724000 > >>>>>>[ 1572.455557] RIP: 0010:[<ffffffffa00b2514>] [<ffffffffa00b2514>] ftrace_raw_event_i915_context+0x5d/0x70 [i915] > >>>>>>[ 1572.460423] RSP: 0018:ffff880035727ce8 EFLAGS: 00010286 > >>>>>>[ 1572.465262] RAX: ffff880073f1643c RBX: ffff880002da9058 RCX: ffff880073e5db40 > >>>>>>[ 1572.470179] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff880035727ce8 > >>>>>>[ 1572.475107] RBP: ffff88007bb11a00 R08: 0000000000000000 R09: 0000000000000000 > >>>>>>[ 1572.480034] R10: 0000000000362200 R11: 0000000000000008 R12: 0000000000000000 > >>>>>>[ 1572.484952] R13: ffff880035727d78 R14: ffff880002dc1c98 R15: ffff880002dc1dc8 > >>>>>>[ 1572.489886] FS: 0000000000000000(0000) GS:ffff88017fd00000(0000) knlGS:0000000000000000 > >>>>>>[ 1572.494883] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b > >>>>>>[ 1572.499859] CR2: 0000000000000000 CR3: 000000017572a000 CR4: 00000000001006e0 > >>>>>>[ 1572.504842] Stack: > >>>>>>[ 1572.509834] ffff88017b0090c0 ffff880073f16438 ffff880002da9058 ffff880073f1643c > >>>>>>[ 1572.514904] 0000000000000246 ffff880100000000 ffff88007bb11a00 ffff880002ddeb10 > >>>>>>[ 1572.519985] ffff8801759f79c0 ffffffffa0092ff0 0000000000000000 ffff88007bb11a00 > >>>>>>[ 1572.525049] Call Trace: > >>>>>>[ 1572.530093] [<ffffffffa0092ff0>] ? i915_gem_context_free+0xa8/0xc1 [i915] > >>>>>>[ 1572.535227] [<ffffffffa009b969>] ? i915_gem_request_free+0x4e/0x50 [i915] > >>>>>>[ 1572.540347] [<ffffffffa00b5533>] ? intel_execlists_retire_requests+0x14c/0x159 [i915] > >>>>>>[ 1572.545500] [<ffffffffa009d9ea>] ? i915_gem_retire_requests+0x9d/0xeb [i915] > >>>>>>[ 1572.550664] [<ffffffffa009dd8c>] ? i915_gem_retire_work_handler+0x4c/0x61 [i915] > >>>>>>[ 1572.555825] [<ffffffff8104ca7f>] ? process_one_work+0x1b2/0x31d > >>>>>>[ 1572.560951] [<ffffffff8104d278>] ? worker_thread+0x24d/0x339 > >>>>>>[ 1572.566033] [<ffffffff8104d02b>] ? cancel_delayed_work_sync+0xa/0xa > >>>>>>[ 1572.571140] [<ffffffff81050b25>] ? kthread+0xce/0xd6 > >>>>>>[ 1572.576191] [<ffffffff81050a57>] ? kthread_create_on_node+0x162/0x162 > >>>>>>[ 1572.581228] [<ffffffff8179b3c8>] ? ret_from_fork+0x58/0x90 > >>>>>>[ 1572.586259] [<ffffffff81050a57>] ? kthread_create_on_node+0x162/0x162 > >>>>>>[ 1572.591318] Code: de 48 89 e7 e8 09 4d 00 e1 48 85 c0 74 27 48 89 68 10 48 8b 55 38 48 89 e7 48 89 50 18 48 8b 55 10 48 8b 12 48 8b 12 48 8b 52 38 <8b> 12 89 50 08 e8 95 4d 00 e1 48 83 c4 30 5b 5d 41 5c c3 41 55 > >>>>>>[ 1572.596981] RIP [<ffffffffa00b2514>] ftrace_raw_event_i915_context+0x5d/0x70 [i915] > >>>>>>[ 1572.602464] RSP <ffff880035727ce8> > >>>>>>[ 1572.607911] CR2: 0000000000000000 > >>>>>> > >>>>>>Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=90112#c23 > >>>>>>Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> > >>>>> > >>>>>Could we do an igt for this, maybe using the sysfs trace interface? > >>>> > >>>>I wonder if it is as simple as: > >>>> > >>>>tracefs=/sys/kernel/tracing > >>>> > >>>>function set_tracing { > >>>> for i in `find $tracefs/i915 -name enable`; do $i > >>>> echo $1 > $i > >>>> done > >>>> echo $1 > $tracefs/enable > >>>>} > >>>> > >>>>set_tracing 1 > >>>> > >>>>./gem_ctx_basic > >>>>./gem_foo_basic > >>>>./gem_bar_basic > >>>>./gem_baz_basic > >>>> > >>>>set_tracing 0 > >>> > >>>Is the patch still valid? > >> > >>Yes. > > > >I could use some review here.... > > I had to rebase the patch to apply it, but apart from that: > Tested-by: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com> > Reviewed-by: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com> Merged to -fixes, thanks. -Daniel
diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h index 70906ac0665e..94e54c3e7cb6 100644 --- a/drivers/gpu/drm/i915/i915_drv.h +++ b/drivers/gpu/drm/i915/i915_drv.h @@ -822,6 +822,7 @@ struct intel_context { struct kref ref; int user_handle; uint8_t remap_slice; + struct drm_i915_private *i915; struct drm_i915_file_private *file_priv; struct i915_ctx_hang_stats hang_stats; struct i915_hw_ppgtt *ppgtt; diff --git a/drivers/gpu/drm/i915/i915_gem_context.c b/drivers/gpu/drm/i915/i915_gem_context.c index 454090a61e65..b4a34ae5bdbe 100644 --- a/drivers/gpu/drm/i915/i915_gem_context.c +++ b/drivers/gpu/drm/i915/i915_gem_context.c @@ -203,8 +203,7 @@ static void decouple_vma(struct intel_context *ctx) void i915_gem_context_free(struct kref *ctx_ref) { - struct intel_context *ctx = container_of(ctx_ref, - typeof(*ctx), ref); + struct intel_context *ctx = container_of(ctx_ref, typeof(*ctx), ref); trace_i915_context_free(ctx); @@ -274,6 +273,7 @@ __create_hw_context(struct drm_device *dev, kref_init(&ctx->ref); list_add_tail(&ctx->link, &dev_priv->context_list); + ctx->i915 = dev_priv; ctx->vma_ht_bits = 6; ctx->vma_ht_size = 1 << ctx->vma_ht_bits; diff --git a/drivers/gpu/drm/i915/i915_trace.h b/drivers/gpu/drm/i915/i915_trace.h index b9fadec3fa98..4709a49e6775 100644 --- a/drivers/gpu/drm/i915/i915_trace.h +++ b/drivers/gpu/drm/i915/i915_trace.h @@ -714,7 +714,7 @@ DECLARE_EVENT_CLASS(i915_context, TP_fast_assign( __entry->ctx = ctx; __entry->vm = ctx->ppgtt ? &ctx->ppgtt->base : NULL; - __entry->dev = ctx->file_priv->dev_priv->dev->primary->index; + __entry->dev = ctx->i915->dev->primary->index; ), TP_printk("dev=%u, ctx=%p, ctx_vm=%p",
[ 1572.417121] BUG: unable to handle kernel NULL pointer dereference at (null) [ 1572.421010] IP: [<ffffffffa00b2514>] ftrace_raw_event_i915_context+0x5d/0x70 [i915] [ 1572.424970] PGD 1766a3067 PUD 1767a2067 PMD 0 [ 1572.428892] Oops: 0000 [#1] SMP [ 1572.432787] Modules linked in: ipv6 dm_mod iTCO_wdt iTCO_vendor_support snd_hda_codec_realtek snd_hda_codec_generic snd_hda_intel snd_hda_controller snd_hda_codec snd_hda_core snd_hwdep snd_pcm snd_timer snd soundcore serio_raw pcspkr lpc_ich i2c_i801 mfd_core battery ac acpi_cpufreq i915 button video drm_kms_helper drm [ 1572.441720] CPU: 2 PID: 18853 Comm: kworker/u8:0 Not tainted 4.0.0_kcloud_3f0360_20150429+ #588 [ 1572.446298] Workqueue: i915 i915_gem_retire_work_handler [i915] [ 1572.450876] task: ffff880002f428f0 ti: ffff880035724000 task.ti: ffff880035724000 [ 1572.455557] RIP: 0010:[<ffffffffa00b2514>] [<ffffffffa00b2514>] ftrace_raw_event_i915_context+0x5d/0x70 [i915] [ 1572.460423] RSP: 0018:ffff880035727ce8 EFLAGS: 00010286 [ 1572.465262] RAX: ffff880073f1643c RBX: ffff880002da9058 RCX: ffff880073e5db40 [ 1572.470179] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff880035727ce8 [ 1572.475107] RBP: ffff88007bb11a00 R08: 0000000000000000 R09: 0000000000000000 [ 1572.480034] R10: 0000000000362200 R11: 0000000000000008 R12: 0000000000000000 [ 1572.484952] R13: ffff880035727d78 R14: ffff880002dc1c98 R15: ffff880002dc1dc8 [ 1572.489886] FS: 0000000000000000(0000) GS:ffff88017fd00000(0000) knlGS:0000000000000000 [ 1572.494883] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b [ 1572.499859] CR2: 0000000000000000 CR3: 000000017572a000 CR4: 00000000001006e0 [ 1572.504842] Stack: [ 1572.509834] ffff88017b0090c0 ffff880073f16438 ffff880002da9058 ffff880073f1643c [ 1572.514904] 0000000000000246 ffff880100000000 ffff88007bb11a00 ffff880002ddeb10 [ 1572.519985] ffff8801759f79c0 ffffffffa0092ff0 0000000000000000 ffff88007bb11a00 [ 1572.525049] Call Trace: [ 1572.530093] [<ffffffffa0092ff0>] ? i915_gem_context_free+0xa8/0xc1 [i915] [ 1572.535227] [<ffffffffa009b969>] ? i915_gem_request_free+0x4e/0x50 [i915] [ 1572.540347] [<ffffffffa00b5533>] ? intel_execlists_retire_requests+0x14c/0x159 [i915] [ 1572.545500] [<ffffffffa009d9ea>] ? i915_gem_retire_requests+0x9d/0xeb [i915] [ 1572.550664] [<ffffffffa009dd8c>] ? i915_gem_retire_work_handler+0x4c/0x61 [i915] [ 1572.555825] [<ffffffff8104ca7f>] ? process_one_work+0x1b2/0x31d [ 1572.560951] [<ffffffff8104d278>] ? worker_thread+0x24d/0x339 [ 1572.566033] [<ffffffff8104d02b>] ? cancel_delayed_work_sync+0xa/0xa [ 1572.571140] [<ffffffff81050b25>] ? kthread+0xce/0xd6 [ 1572.576191] [<ffffffff81050a57>] ? kthread_create_on_node+0x162/0x162 [ 1572.581228] [<ffffffff8179b3c8>] ? ret_from_fork+0x58/0x90 [ 1572.586259] [<ffffffff81050a57>] ? kthread_create_on_node+0x162/0x162 [ 1572.591318] Code: de 48 89 e7 e8 09 4d 00 e1 48 85 c0 74 27 48 89 68 10 48 8b 55 38 48 89 e7 48 89 50 18 48 8b 55 10 48 8b 12 48 8b 12 48 8b 52 38 <8b> 12 89 50 08 e8 95 4d 00 e1 48 83 c4 30 5b 5d 41 5c c3 41 55 [ 1572.596981] RIP [<ffffffffa00b2514>] ftrace_raw_event_i915_context+0x5d/0x70 [i915] [ 1572.602464] RSP <ffff880035727ce8> [ 1572.607911] CR2: 0000000000000000 Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=90112#c23 Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> --- drivers/gpu/drm/i915/i915_drv.h | 1 + drivers/gpu/drm/i915/i915_gem_context.c | 4 ++-- drivers/gpu/drm/i915/i915_trace.h | 2 +- 3 files changed, 4 insertions(+), 3 deletions(-)