B2G Emulator intermittent when run as first test of chunk: layout/reftests/marquee/336736-1b.html | application timed out after 330 seconds with no output

RESOLVED INCOMPLETE

Status

()

Core
Graphics
RESOLVED INCOMPLETE
3 years ago
4 months ago

People

(Reporter: dbaron, Unassigned)

Tracking

({intermittent-failure})

Trunk
ARM
Gonk (Firefox OS)
intermittent-failure
Points:
---

Firefox Tracking Flags

(Not tracked)

Details

(Whiteboard: [gfx-noted])

(Reporter)

Description

3 years ago
Bug 1010675 just added 12 new reftests, which changed the chunking of reftests, which introduced a new intermittent failure that causes a timeout that makes an entire chunk (reftest-14) of the B2G emulator reftests not run:

13:24:11 WARNING - TEST-UNEXPECTED-FAIL | http://10.0.2.2:8888/tests/layout/reftests/marquee/336736-1b.html | application timed out after 330 seconds with no output 

We don't have good diagnostics since it's not the reftest harness timing things out, but the automation above that.
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(Reporter)

Updated

3 years ago
Keywords: leave-open
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(Reporter)

Comment 32

3 years ago
Of the interesting logs, three of the stacks are:

13:30:14 INFO - 0 libc.so!__futex_syscall3 + 0xc
13:30:14 INFO - r4 = 0x46f88de4 r5 = 0x46dfafb0 r6 = 0xfffffff8 r7 = 0x000000f0
13:30:14 INFO - r8 = 0xbef14414 r9 = 0xfffffffc r10 = 0x00000000 fp = 0xbef1445c
13:30:14 INFO - sp = 0xbef14368 lr = 0x4007056c pc = 0x4006b5a8
13:30:14 INFO - Found by: given as instruction pointer in context
13:30:14 INFO - 1 libc.so!__pthread_cond_timedwait_relative [pthread.c : 1477 + 0x16]
13:30:14 INFO - r4 = 0x46f88de4 r5 = 0x46dfafb0 r6 = 0xfffffff8 r7 = 0x00000000
13:30:14 INFO - r8 = 0xbef14414 r9 = 0xfffffffc r10 = 0x00000000 fp = 0xbef1445c
13:30:14 INFO - sp = 0xbef14370 pc = 0x4007056c
13:30:14 INFO - Found by: call frame info
13:30:14 INFO - 2 libc.so!__pthread_cond_timedwait [pthread.c : 1500 + 0xa]
13:30:14 INFO - r4 = 0x46dfafb0 r5 = 0x46f88de4 r6 = 0xffffffff r7 = 0x00000000
13:30:14 INFO - r8 = 0xbef14414 r9 = 0xfffffffc r10 = 0x00000000 fp = 0xbef1445c
13:30:14 INFO - sp = 0xbef14388 pc = 0x40070620
13:30:14 INFO - Found by: call frame info
13:30:14 INFO - 3 libmozglue.so!__wrap_pthread_cond_wait [Nuwa.cpp:fd0834bbfd3c : 1147 + 0x7]
13:30:14 INFO - r4 = 0x00000000 r5 = 0x00000000 r6 = 0xffffffff r7 = 0x00000000
13:30:14 INFO - r8 = 0xbef14414 r9 = 0xfffffffc r10 = 0x00000000 fp = 0xbef1445c
13:30:14 INFO - sp = 0xbef143a0 pc = 0x4002a265
13:30:14 INFO - Found by: call frame info
13:30:14 INFO - 4 libnss3.so!PR_WaitCondVar [ptsynch.c:fd0834bbfd3c : 385 + 0x7]
13:30:14 INFO - r4 = 0x46f88de0 r5 = 0x40247080 r6 = 0xffffffff r7 = 0x00000000
13:30:14 INFO - r8 = 0xbef14414 r9 = 0xfffffffc r10 = 0x00000000 fp = 0xbef1445c
13:30:14 INFO - sp = 0xbef143c8 pc = 0x40714c41
13:30:14 INFO - Found by: call frame info
13:30:14 INFO - 5 libxul.so!mozilla::Monitor::Wait [CondVar.h : 79 + 0x7]
13:30:14 INFO - r4 = 0x46f88dd0 r5 = 0xffffffff r6 = 0x000595c8 r7 = 0x00000000
13:30:14 INFO - r8 = 0xbef14414 r9 = 0xfffffffc r10 = 0x00000000 fp = 0xbef1445c
13:30:14 INFO - sp = 0xbef143d8 pc = 0x40ae27eb
13:30:14 INFO - Found by: call frame info
13:30:14 INFO - 6 libxul.so!mozilla::ipc::MessageChannel::WaitForSyncNotify [MessageChannel.cpp:fd0834bbfd3c : 1425 + 0x5]
13:30:14 INFO - r4 = 0xffffffff r5 = 0x48a3a170 r6 = 0x000595c8 r7 = 0x00000000
13:30:14 INFO - r8 = 0xbef14414 r9 = 0xfffffffc r10 = 0x00000000 fp = 0xbef1445c
13:30:14 INFO - sp = 0xbef143e8 pc = 0x40c387dd
13:30:14 INFO - Found by: call frame info
13:30:14 INFO - 7 libxul.so!mozilla::ipc::MessageChannel::Send [MessageChannel.cpp:fd0834bbfd3c : 823 + 0x5]
13:30:14 INFO - r4 = 0x00000000 r5 = 0xfffffffc r6 = 0x48a3a170 r7 = 0x00000000
13:30:14 INFO - r8 = 0xbef14414 r9 = 0xfffffffc r10 = 0x00000000 fp = 0xbef1445c
13:30:14 INFO - sp = 0xbef143f8 pc = 0x40c3d91b
13:30:14 INFO - Found by: call frame info
13:30:14 INFO - 8 libxul.so!mozilla::layers::PCompositorChild::SendMakeSnapshot [PCompositorChild.cpp : 320 + 0xb]
13:30:14 INFO - r4 = 0x44e94e00 r5 = 0x48a3a140 r6 = 0xbef1445c r7 = 0xbef14450
13:30:14 INFO - r8 = 0x00320012 r9 = 0xbef14510 r10 = 0x00000000 fp = 0x463109a0
13:30:14 INFO - sp = 0xbef14448 pc = 0x40d016e3
13:30:14 INFO - Found by: call frame info
13:30:14 INFO - 9 libxul.so!mozilla::layers::ClientLayerManager::MakeSnapshotIfRequired [ClientLayerManager.cpp:fd0834bbfd3c : 482 + 0x9]
13:30:14 INFO - r4 = 0xbef14528 r5 = 0x48334140 r6 = 0xbef144b0 r7 = 0xbef144a0
13:30:14 INFO - r8 = 0x48a3a140 r9 = 0xbef14510 r10 = 0x00000000 fp = 0x463109a0
13:30:14 INFO - sp = 0xbef14490 pc = 0x40e76ce9
13:30:14 INFO - Found by: call frame info
13:30:14 INFO - 10 libxul.so!mozilla::layers::ClientLayerManager::EndTransaction [ClientLayerManager.cpp:fd0834bbfd3c : 325 + 0x5]
13:30:14 INFO - r4 = 0x48334140 r5 = 0x00000000 r6 = 0xbef14880 r7 = 0x416498e1
13:30:14 INFO - r8 = 0x00000000 r9 = 0x00000000 r10 = 0x4711b6e0 fp = 0x463109a0
13:30:14 INFO - sp = 0xbef14580 pc = 0x40e78a77
13:30:14 INFO - Found by: call frame info
13:30:14 INFO - 11 libxul.so!nsDisplayList::PaintRoot [nsDisplayList.cpp:fd0834bbfd3c : 1763 + 0xf]
13:30:14 INFO - r4 = 0xbef14640 r5 = 0xbef14880 r6 = 0x44567970 r7 = 0xbef145f4
13:30:14 INFO - r8 = 0x00000000 r9 = 0x00000000 r10 = 0x4711b6e0 fp = 0x463109a0
13:30:14 INFO - sp = 0xbef14598 pc = 0x4166cec5
13:30:14 INFO - Found by: call frame info
13:30:14 INFO - 12 libxul.so!nsLayoutUtils::PaintFrame [nsLayoutUtils.cpp:fd0834bbfd3c : 3275 + 0x13]
13:30:14 INFO - r4 = 0x463432e8 r5 = 0xbef147c0 r6 = 0xbef1480c r7 = 0x00000000
13:30:14 INFO - r8 = 0x3747402f r9 = 0x00000055 r10 = 0x00000000 fp = 0xbef14850
13:30:14 INFO - sp = 0xbef14768 pc = 0x4168a0c7
13:30:14 INFO - Found by: call frame info
13:30:14 INFO - 13 libxul.so!PresShell::RenderDocument [nsPresShell.cpp:fd0834bbfd3c : 4933 + 0x17]
13:30:14 INFO - r4 = 0x4545afa0 r5 = 0x40293940 r6 = 0xbef14d18 r7 = 0x30000000
13:30:14 INFO - r8 = 0xffffffff r9 = 0x463432e8 r10 = 0xbef14dc8 fp = 0x0000000e
13:30:14 INFO - sp = 0xbef14c98 pc = 0x4168a5fb
13:30:14 INFO - Found by: call frame info
13:30:14 INFO - 14 libxul.so!mozilla::dom::CanvasRenderingContext2D::DrawWindow [CanvasRenderingContext2D.cpp:fd0834bbfd3c : 4666 + 0x11]
13:30:14 INFO - r4 = 0xbef14e00 r5 = 0x445b2c00 r6 = 0xbef14ee0 r7 = 0xbef14da0
13:30:14 INFO - r8 = 0xbef14da8 r9 = 0xbef14db0 r10 = 0x0000000c fp = 0x4541dbe0
13:30:14 INFO - sp = 0xbef14d78 pc = 0x412c1ba1
13:30:14 INFO - Found by: call frame info
13:30:14 INFO - 15 libxul.so!mozilla::dom::CanvasRenderingContext2DBinding::drawWindow [CanvasRenderingContext2DBinding.cpp : 5181 + 0x17]
13:30:14 INFO - r4 = 0xbef14ef4 r5 = 0x00000000 r6 = 0x402ca0e0 r7 = 0xbef14fb4
13:30:14 INFO - r8 = 0x00000001 r9 = 0x44575370 r10 = 0x445b2c00 fp = 0xbef14ee0
13:30:14 INFO - sp = 0xbef14e90 pc = 0x4113da49
13:30:14 INFO - Found by: call frame info 

and the remaining one is:

13:25:29 INFO - 0 libc.so!read + 0xc
13:25:29 INFO - r4 = 0xbecdbc30 r5 = 0x00000004 r6 = 0x00000004 r7 = 0x00000003
13:25:29 INFO - r8 = 0xbecdbc30 r9 = 0x00000000 r10 = 0x00000001 fp = 0x00000000
13:25:29 INFO - sp = 0xbecdbb88 lr = 0x42e40305 pc = 0x4006a434
13:25:29 INFO - Found by: given as instruction pointer in context
13:25:29 INFO - 1 libOpenglSystemCommon.so!QemuPipeStream::readFully(void*, unsigned int) [QemuPipeStream.cpp : 125 + 0xb]
13:25:29 INFO - r4 = 0xbecdbc30 r5 = 0x00000004 r6 = 0x00000004 r7 = 0x4023e100
13:25:29 INFO - r8 = 0xbecdbc30 r9 = 0x00000000 r10 = 0x00000001 fp = 0x00000000
13:25:29 INFO - sp = 0xbecdbb90 pc = 0x42e40305
13:25:29 INFO - Found by: call frame info
13:25:29 INFO - 2 libGLESv2_enc.so!IOStream::readback(void*, unsigned int) [IOStream.h : 83 + 0xb]
13:25:29 INFO - r4 = 0x4023e100 r5 = 0x00000004 r6 = 0xbecdbc30 r7 = 0x42f00225
13:25:29 INFO - r8 = 0xbecdbc30 r9 = 0x00000000 r10 = 0x00000001 fp = 0x00000000
13:25:29 INFO - sp = 0xbecdbbb0 pc = 0x42e55599
13:25:29 INFO - Found by: call frame info
13:25:29 INFO - 3 libGLESv2_enc.so!glGenTextures_enc [gl2_enc.cpp : 924 + 0x9]
13:25:29 INFO - r4 = 0x00000004 r5 = 0x00000004 r6 = 0x4023e100 r7 = 0x42f00225
13:25:29 INFO - r8 = 0xbecdbc30 r9 = 0x00000000 r10 = 0x00000001 fp = 0x00000000
13:25:29 INFO - sp = 0xbecdbbc0 pc = 0x42e58285
13:25:29 INFO - Found by: call frame info
13:25:29 INFO - 4 libGLESv2_emulation.so!glGenTextures [gl2_entry.cpp : 555 + 0x9]
13:25:29 INFO - r4 = 0x00000001 r5 = 0xbecdbc30 r6 = 0xbecdbc18 r7 = 0x00000000
13:25:29 INFO - r8 = 0x00000000 r9 = 0x00000000 r10 = 0x00000001 fp = 0x00000000
13:25:29 INFO - sp = 0xbecdbbe8 pc = 0x4801eced
13:25:29 INFO - Found by: call frame info
13:25:29 INFO - 5 libxul.so!mozilla::gl::GLContext::fGenTextures [GLContext.h:bda9c6920e56 : 2168 + 0x9]
13:25:29 INFO - r4 = 0x44dbf800 r5 = 0xbecdbcb8 r6 = 0xbecdbc18 r7 = 0x00000000
13:25:29 INFO - r8 = 0x00000000 r9 = 0x00000000 r10 = 0x00000001 fp = 0x00000000
13:25:29 INFO - sp = 0xbecdbbf8 pc = 0x40e4b52f
13:25:29 INFO - Found by: call frame info
13:25:29 INFO - 6 libxul.so!GrGpuGL::onCreateTexture [GrGpuGL.cpp:bda9c6920e56 : 1020 + 0xb]
13:25:29 INFO - r4 = 0x44dbf800 r5 = 0xbecdbcb8 r6 = 0xbecdbc18 r7 = 0x00000000
13:25:29 INFO - r8 = 0x00000000 r9 = 0x00000000 r10 = 0x00000001 fp = 0x00000000
13:25:29 INFO - sp = 0xbecdbc00 pc = 0x41b07c73
13:25:29 INFO - Found by: call frame info
13:25:29 INFO - 7 libxul.so!GrGpu::createTexture [GrGpu.cpp:bda9c6920e56 : 136 + 0xf]
13:25:29 INFO - r4 = 0x44dbf800 r5 = 0xbecdbcb8 r6 = 0x41b07baf r7 = 0x00000000
13:25:29 INFO - r8 = 0x00000000 r9 = 0xbecdbd40 r10 = 0x44561c00 fp = 0xbecdbee0
13:25:29 INFO - sp = 0xbecdbca0 pc = 0x41ae298d
13:25:29 INFO - Found by: call frame info
13:25:29 INFO - 8 libxul.so!GrContext::createUncachedTexture [GrContext.cpp:bda9c6920e56 : 591 + 0x9]
13:25:29 INFO - r4 = 0xbecdbcc8 r5 = 0xbecdbcf8 r6 = 0x00000000 r7 = 0x00000000
13:25:29 INFO - r8 = 0x00000000 r9 = 0xbecdbd40 r10 = 0x44561c00 fp = 0xbecdbee0
13:25:29 INFO - sp = 0xbecdbcb8 pc = 0x41ae2d23
13:25:29 INFO - Found by: call frame info
13:25:29 INFO - 9 libxul.so!mozilla::gfx::DrawTargetSkia::InitWithGrContext [DrawTargetSkia.cpp:bda9c6920e56 : 813 + 0x5]
13:25:29 INFO - r4 = 0x45419040 r5 = 0x44e3db30 r6 = 0xbecdbd40 r7 = 0x00000000
13:25:29 INFO - r8 = 0x00000000 r9 = 0xbecdbd40 r10 = 0x44561c00 fp = 0xbecdbee0
13:25:29 INFO - sp = 0xbecdbce8 pc = 0x40e23be3
13:25:29 INFO - Found by: call frame info
13:25:29 INFO - 10 libxul.so!mozilla::gfx::Factory::CreateDrawTargetSkiaWithGrContext [Factory.cpp:bda9c6920e56 : 743 + 0xd]
13:25:29 INFO - r4 = 0xbecdbd48 r5 = 0xbecdbd1c r6 = 0x40e23b71 r7 = 0x44e3db30
13:25:29 INFO - r8 = 0x00000000 r9 = 0xbecdbd40 r10 = 0x44561c00 fp = 0xbecdbee0
13:25:29 INFO - sp = 0xbecdbd18 pc = 0x40e2a7a1
13:25:29 INFO - Found by: call frame info
13:25:29 INFO - 11 libxul.so!mozilla::dom::CanvasRenderingContext2D::EnsureTarget [CanvasRenderingContext2D.cpp:bda9c6920e56 : 1359 + 0xb]
13:25:29 INFO - r4 = 0x44561c00 r5 = 0xbecdbd48 r6 = 0x00000001 r7 = 0x488ec250
13:25:29 INFO - r8 = 0x0000000d r9 = 0x00000000 r10 = 0x44561c00 fp = 0xbecdbee0
13:25:29 INFO - sp = 0xbecdbd40 pc = 0x412bb89b
13:25:29 INFO - Found by: call frame info
13:25:29 INFO - 12 libxul.so!mozilla::dom::CanvasRenderingContext2D::DrawWindow [CanvasRenderingContext2D.cpp:bda9c6920e56 : 4576 + 0x7]
13:25:29 INFO - r4 = 0xbecdbe00 r5 = 0x44561c00 r6 = 0xbecdbee0 r7 = 0x44575370
13:25:29 INFO - r8 = 0x0000000d r9 = 0x44575370 r10 = 0x44561c00 fp = 0xbecdbee0
13:25:29 INFO - sp = 0xbecdbd78 pc = 0x412c1903
13:25:29 INFO - Found by: call frame info
13:25:29 INFO - 13 libxul.so!mozilla::dom::CanvasRenderingContext2DBinding::drawWindow [CanvasRenderingContext2DBinding.cpp : 5181 + 0x17]
13:25:29 INFO - r4 = 0xbecdbef4 r5 = 0x00000000 r6 = 0x402ca0e0 r7 = 0xbecdbfb4
13:25:29 INFO - r8 = 0x00000001 r9 = 0x44575370 r10 = 0x44561c00 fp = 0xbecdbee0
13:25:29 INFO - sp = 0xbecdbe90 pc = 0x4113da81
13:25:29 INFO - Found by: call frame info 

They're all SIGABRT.
(Reporter)

Comment 33

3 years ago
Oh, but in the three crashes that showed up with __futex_syscall3 on the PROCESS-CRASH line (the three crashes with the first main thread stack in the previous comment), the Compositor thread stack was:

14:29:05     INFO -  Thread 25
14:29:05     INFO -   0  libc.so!read + 0xc
14:29:05     INFO -       r4 = 0x45dffa14    r5 = 0x00000004    r6 = 0x00000004    r7 = 0x00000003
14:29:05     INFO -       r8 = 0x45dffb20    r9 = 0x45dffb18   r10 = 0x45dffb14    fp = 0x46dee308
14:29:05     INFO -       sp = 0x45dff9d0    lr = 0x42e4c305    pc = 0x4006a434
14:29:05     INFO -      Found by: given as instruction pointer in context
14:29:05     INFO -   1  libOpenglSystemCommon.so!QemuPipeStream::readFully(void*, unsigned int) [QemuPipeStream.cpp : 125 + 0xb]
14:29:05     INFO -       r4 = 0x45dffa14    r5 = 0x00000004    r6 = 0x00000004    r7 = 0x4734c760
14:29:05     INFO -       r8 = 0x45dffb20    r9 = 0x45dffb18   r10 = 0x45dffb14    fp = 0x46dee308
14:29:05     INFO -       sp = 0x45dff9d8    pc = 0x42e4c305
14:29:05     INFO -      Found by: call frame info
14:29:05     INFO -   2  lib_renderControl_enc.so!IOStream::readback(void*, unsigned int) [IOStream.h : 83 + 0xb]
14:29:05     INFO -       r4 = 0x4734c760    r5 = 0x00000004    r6 = 0x45dffa14    r7 = 0x46993880
14:29:05     INFO -       r8 = 0x45dffb20    r9 = 0x45dffb18   r10 = 0x45dffb14    fp = 0x46dee308
14:29:05     INFO -       sp = 0x45dff9f8    pc = 0x42e4f635
14:29:05     INFO -      Found by: call frame info
14:29:05     INFO -   3  lib_renderControl_enc.so!rcFlushWindowColorBuffer_enc [renderControl_enc.cpp : 347 + 0x9]
14:29:05     INFO -       r4 = 0x00000004    r5 = 0x4734c760    r6 = 0x494016f0    r7 = 0x46993880
14:29:05     INFO -       r8 = 0x45dffb20    r9 = 0x45dffb18   r10 = 0x45dffb14    fp = 0x46dee308
14:29:05     INFO -       sp = 0x45dffa08    pc = 0x42e4fc89
14:29:05     INFO -      Found by: call frame info
14:29:05     INFO -   4  libEGL_emulation.so!egl_window_surface_t::swapBuffers() [egl.cpp : 317 + 0x5]
14:29:05     INFO -       r4 = 0x47779b70    r5 = 0x46993880    r6 = 0x4537e7c4    r7 = 0x46993880
14:29:05     INFO -       r8 = 0x45dffb20    r9 = 0x45dffb18   r10 = 0x45dffb14    fp = 0x46dee308
14:29:05     INFO -       sp = 0x45dffa30    pc = 0x45378e69
14:29:05     INFO -      Found by: call frame info
14:29:05     INFO -   5  libEGL_emulation.so!eglSwapBuffers [egl.cpp : 1109 + 0x7]
14:29:05     INFO -       r4 = 0x46f14dc0    r5 = 0x47779b70    r6 = 0x4537e7c4    r7 = 0x46993880
14:29:05     INFO -       r8 = 0x45dffb20    r9 = 0x45dffb18   r10 = 0x45dffb14    fp = 0x46dee308
14:29:05     INFO -       sp = 0x45dffa50    pc = 0x45379393
14:29:05     INFO -      Found by: call frame info
14:29:05     INFO -   6  libEGL.so!eglSwapBuffers [eglApi.cpp : 941 + 0xf]
14:29:05     INFO -       r4 = 0x00000001    r5 = 0x469938b0    r6 = 0x40371040    r7 = 0x44d79534
14:29:05     INFO -       r8 = 0x45dffb20    r9 = 0x45dffb18   r10 = 0x45dffb14    fp = 0x46dee308
14:29:05     INFO -       sp = 0x45dffa78    pc = 0x4035abcb
14:29:05     INFO -      Found by: call frame info
14:29:05     INFO -   7  b2g!mozilla::GonkDisplayICS::SwapBuffers [GonkDisplayICS.cpp:7ff3c70a5ad2 : 190 + 0x7]
14:29:05     INFO -       r4 = 0x4023e180    r5 = 0x469938b0    r6 = 0x00000001    r7 = 0x44d79534
14:29:05     INFO -       r8 = 0x45dffb20    r9 = 0x45dffb18   r10 = 0x45dffb14    fp = 0x46dee308
14:29:05     INFO -       sp = 0x45dffa90    pc = 0x0001852f
14:29:05     INFO -      Found by: call frame info
14:29:05     INFO -   8  libxul.so!mozilla::gl::GLContextEGL::SwapBuffers [GLContextProviderEGL.cpp:7ff3c70a5ad2 : 468 + 0x15]
14:29:05     INFO -       r4 = 0x456d7800    r5 = 0x45dffaac    r6 = 0x00000000    r7 = 0x44d79534
14:29:05     INFO -       r8 = 0x45dffb20    r9 = 0x45dffb18   r10 = 0x45dffb14    fp = 0x46dee308
14:29:05     INFO -       sp = 0x45dffaa0    pc = 0x40e4aeff
14:29:05     INFO -      Found by: call frame info
14:29:05     INFO -   9  libxul.so!mozilla::layers::CompositorOGL::EndFrame [CompositorOGL.cpp:7ff3c70a5ad2 : 1256 + 0x5]
14:29:05     INFO -       r4 = 0x44d79480    r5 = 0x45dffaac    r6 = 0x00000000    r7 = 0x44d79534
14:29:05     INFO -       r8 = 0x45dffb20    r9 = 0x45dffb18   r10 = 0x45dffb14    fp = 0x46dee308
14:29:05     INFO -       sp = 0x45dffaa8    pc = 0x40e9c38b
14:29:05     INFO -      Found by: call frame info
14:29:05     INFO -  10  libxul.so!mozilla::layers::LayerManagerComposite::Render [LayerManagerComposite.cpp:7ff3c70a5ad2 : 764 + 0x5]
14:29:05     INFO -       r4 = 0x46dee2f0    r5 = 0x45dffb78    r6 = 0x00000000    r7 = 0x45dffb60
14:29:05     INFO -       r8 = 0x45dffb20    r9 = 0x45dffb18   r10 = 0x45dffb14    fp = 0x46dee308
14:29:05     INFO -       sp = 0x45dffae8    pc = 0x40e8ee03
14:29:05     INFO -      Found by: call frame info
14:29:05     INFO -  11  libxul.so!mozilla::layers::LayerManagerComposite::EndTransaction [LayerManagerComposite.cpp:7ff3c70a5ad2 : 310 + 0x5]
14:29:05     INFO -       r4 = 0x46dee2f0    r5 = 0x45dffc48    r6 = 0x44df0800    r7 = 0x40e73f25
14:29:05     INFO -       r8 = 0x45dffcbc    r9 = 0x00000000   r10 = 0x45dffcb0    fp = 0x00000000
14:29:05     INFO -       sp = 0x45dffc40    pc = 0x40e8ef51
14:29:05     INFO -      Found by: call frame info
14:29:05     INFO -  12  libxul.so!mozilla::layers::LayerManagerComposite::EndEmptyTransaction [LayerManagerComposite.cpp:7ff3c70a5ad2 : 257 + 0x9]
14:29:05     INFO -       r4 = 0xda64fb3c    r5 = 0x00000054    r6 = 0x48b10400    r7 = 0x45dffcb8
14:29:05     INFO -       r8 = 0x45dffcbc    r9 = 0x00000000   r10 = 0x45dffcb0    fp = 0x00000000
14:29:05     INFO -       sp = 0x45dffca0    pc = 0x40e8efe1
14:29:05     INFO -      Found by: call frame info
14:29:05     INFO -  13  libxul.so!mozilla::layers::CompositorParent::CompositeToTarget [CompositorParent.cpp:7ff3c70a5ad2 : 1020 + 0x7]
14:29:05     INFO -       r4 = 0xda64fb3c    r5 = 0x00000054    r6 = 0x48b10400    r7 = 0x45dffcb8
14:29:05     INFO -       r8 = 0x45dffcbc    r9 = 0x00000000   r10 = 0x45dffcb0    fp = 0x00000000
14:29:05     INFO -       sp = 0x45dffca8    pc = 0x40e9694f
14:29:05     INFO -      Found by: call frame info
14:29:05     INFO -  14  libxul.so!mozilla::layers::CompositorVsyncObserver::Composite [CompositorParent.cpp:7ff3c70a5ad2 : 337 + 0x7]
14:29:05     INFO -       r4 = 0xda1e2b54    r5 = 0x00000054    r6 = 0x48310fc0    r7 = 0x00000000
14:29:05     INFO -       r8 = 0x45dffd2c    r9 = 0x4593fd90   r10 = 0x00100000    fp = 0x00000001
14:29:05     INFO -       sp = 0x45dffd28    pc = 0x40e96acf
14:29:05     INFO -      Found by: call frame info
14:29:05     INFO -  15  libxul.so!RunnableMethod<SoftwareDisplay, void (SoftwareDisplay::*)(mozilla::TimeStamp), Tuple1<mozilla::TimeStamp> >::Run [tuple.h:7ff3c70a5ad2 : 393 + 0x17]
14:29:05     INFO -       r4 = 0x456c0880    r5 = 0x45dffdf8    r6 = 0x454a49f0    r7 = 0x00000001
14:29:05     INFO -       r8 = 0x45dffe04    r9 = 0x4593fd90   r10 = 0x00100000    fp = 0x00000001
14:29:05     INFO -       sp = 0x45dffd48    pc = 0x40e88601
14:29:05     INFO -      Found by: call frame info
14:29:05     INFO -  16  libxul.so!MessageLoop::RunTask [message_loop.cc:7ff3c70a5ad2 : 361 + 0x5]
14:29:05     INFO -       r4 = 0x456c0880    r5 = 0x45dffdf8    r6 = 0x454a49f0    r7 = 0x00000001
14:29:05     INFO -       r8 = 0x45dffe04    r9 = 0x4593fd90   r10 = 0x00100000    fp = 0x00000001
14:29:05     INFO -       sp = 0x45dffd50    pc = 0x40c2db75
14:29:05     INFO -      Found by: call frame info
...


which means all 4 of the instances where we have good stacks seem to be a hang with the top two frames being:

14:29:05     INFO -   0  libc.so!read + 0xc
14:29:05     INFO -       r4 = 0x45dffa14    r5 = 0x00000004    r6 = 0x00000004    r7 = 0x00000003
14:29:05     INFO -       r8 = 0x45dffb20    r9 = 0x45dffb18   r10 = 0x45dffb14    fp = 0x46dee308
14:29:05     INFO -       sp = 0x45dff9d0    lr = 0x42e4c305    pc = 0x4006a434
14:29:05     INFO -      Found by: given as instruction pointer in context
14:29:05     INFO -   1  libOpenglSystemCommon.so!QemuPipeStream::readFully(void*, unsigned int) [QemuPipeStream.cpp : 125 + 0xb]
14:29:05     INFO -       r4 = 0x45dffa14    r5 = 0x00000004    r6 = 0x00000004    r7 = 0x4734c760
14:29:05     INFO -       r8 = 0x45dffb20    r9 = 0x45dffb18   r10 = 0x45dffb14    fp = 0x46dee308
14:29:05     INFO -       sp = 0x45dff9d8    pc = 0x42e4c305
14:29:05     INFO -      Found by: call frame info

and the third frame being IOStream::readback (but in different libraries in the two patterns).
(Reporter)

Comment 34

3 years ago
If this starts again because the chunking shifts again, one good way to fix would likely be to back out:
https://hg.mozilla.org/integration/mozilla-inbound/rev/c30bce033d92
to shift the chunks further in the same direction.
(Reporter)

Comment 35

3 years ago
I realize this bug is probably going to be a pain to debug if it's possible to debug at all, but having bugs that show up when reftests are added, causing other tests to move between chunks, is also a pain.

Is there anybody who is actually familiar with this code (see comment 32 and comment 33 in particular, especially the end of comment 33).
Component: Layout → Graphics
Flags: needinfo?(milan)
(Reporter)

Updated

3 years ago
Keywords: leave-open
(In reply to David Baron [:dbaron] ⏰UTC-7 from comment #35)
> Is there anybody who is actually familiar with this code (see comment 32 and
> comment 33 in particular, especially the end of comment 33).

Looks like this code is in the Firefox OS display stack. Sotaro, do you know who might be familiar with it?
Flags: needinfo?(milan) → needinfo?(sotaro.ikeda.g)
I do not know there is a person who knows ics emulator's internal. I am not sure there is a value to spend a time for ics emulator. Bug 1107678 is going to enable KK emulator.
Flags: needinfo?(sotaro.ikeda.g)

Updated

3 years ago
Whiteboard: [gfx-noted]
Probably worth revisiting with the KK emulator.
Comment hidden (Treeherder Robot)
Comment hidden (Treeherder Robot)
Comment hidden (Treeherder Robot)
Comment hidden (Treeherder Robot)
Status: NEW → RESOLVED
Last Resolved: 4 months ago
Resolution: --- → INCOMPLETE
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