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Issue 688402 link

Starred by 1 user
Status: WontFix
Owner:
cjgrant@chromium.org
Closed: Feb 2017
Components:
EstimatedDays: ----
NextAction: ----
OS: Android
Pri: 1
Type: Bug
Proj-VR
Proj-XR
Proj-XR-VR



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VR shell freezes periodically for several seconds

Project Member Reported by cjgrant@chromium.org, Feb 3 2017 
When entering and using VR Shell, often the UI will completely freeze for a few seconds, then return to working state shortly after.

The freeze time varies, as does the length of time shell will run before freezing.  I don't know of any specific means of reproducing the issue, other than starting VR shell and staying in it for a period of time.

I haven't done initial digging yet to see if the render loop is blocked or not.  This is also not new - I remember seeing it periodically weeks back, but now that other crashes are resolved and this has persisted, it's worth singling out.

Comment 1 by cjgrant@chromium.org, Feb 3 2017 

Here's a log snippet captured while the UI is frozen.  Note the "Frame" debug print I added, and that when working properly, the log is a slew of only "Frame" prints.

02-03 14:42:22.159  7360  7580 I chromium: [INFO:vr_shell_gl.cc(608)] Frame
02-03 14:42:22.160  7360  7580 W Adreno-GSL: <gsl_ldd_control:477>: ioctl fd 42 code 0xc0140933 (IOCTL_KGSL_TIMESTAMP_EVENT) failed: errno 
22 Invalid argument
02-03 14:42:22.160  7360  7580 W Adreno-GSL: <ioctl_kgsl_syncobj_create:3269>: (2b, 18, 179812) fail 22 Invalid argument
02-03 14:42:22.176  7360  7580 I chromium: [INFO:vr_shell_gl.cc(608)] Frame
02-03 14:42:22.176  7360  7580 W Adreno-GSL: <gsl_ldd_control:477>: ioctl fd 42 code 0xc0140933 (IOCTL_KGSL_TIMESTAMP_EVENT) failed: errno 
22 Invalid argument
02-03 14:42:22.176  7360  7580 W Adreno-GSL: <ioctl_kgsl_syncobj_create:3269>: (2b, 18, 179812) fail 22 Invalid argument
02-03 14:42:22.192  7360  7580 I chromium: [INFO:vr_shell_gl.cc(608)] Frame
02-03 14:42:22.193  7360  7580 W Adreno-GSL: <gsl_ldd_control:477>: ioctl fd 42 code 0xc0140933 (IOCTL_KGSL_TIMESTAMP_EVENT) failed: errno 
22 Invalid argument
02-03 14:42:22.193  7360  7580 W Adreno-GSL: <ioctl_kgsl_syncobj_create:3269>: (2b, 18, 179812) fail 22 Invalid argument
02-03 14:42:22.209  7360  7580 I chromium: [INFO:vr_shell_gl.cc(608)] Frame
02-03 14:42:22.210  7360  7580 W Adreno-GSL: <gsl_ldd_control:477>: ioctl fd 42 code 0xc0140933 (IOCTL_KGSL_TIMESTAMP_EVENT) failed: errno 
22 Invalid argument
02-03 14:42:22.210  7360  7580 W Adreno-GSL: <ioctl_kgsl_syncobj_create:3269>: (2b, 18, 179812) fail 22 Invalid argument
02-03 14:42:22.226  7360  7580 I chromium: [INFO:vr_shell_gl.cc(608)] Frame
02-03 14:42:22.226  7360  7580 W Adreno-GSL: <gsl_ldd_control:477>: ioctl fd 42 code 0xc0140933 (IOCTL_KGSL_TIMESTAMP_EVENT) failed: errno 
22 Invalid argument
02-03 14:42:22.226  7360  7580 W Adreno-GSL: <ioctl_kgsl_syncobj_create:3269>: (2b, 18, 179812) fail 22 Invalid argument

Comment 2 by girard@chromium.org, Feb 6 2017

Status: Untriaged

Comment 3 by cjgrant@chromium.org, Feb 6 2017

Owner: cjgrant@chromium.org
Status: Assigned (was: Untriaged)
I've found that my phone is running a ridiculously old Android version (September).  I'm claiming this bug, under the assumption this is my own fault.

Comment 4 by cjgrant@chromium.org, Feb 6 2017

Status: WontFix (was: Assigned)
I can't repro this after moving up to build N2G33 OTA.
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