FS#48807 - [opencv] haarcascades crash with llvm error

Attached to Project: Arch Linux
Opened by alex (kabolt) - Monday, 04 April 2016, 12:57 GMT
Last edited by Jelle van der Waa (jelly) - Saturday, 05 January 2019, 13:56 GMT
Task Type Bug Report
Category Packages: Testing
Status Closed
Assigned To Ray Rashif (schivmeister)
Architecture All
Severity Medium
Priority Normal
Reported Version
Due in Version Undecided
Due Date Undecided
Percent Complete 100%
Votes 0
Private No

Details

Description:
haarcascade detection seems to be broken. It crashes with a llvm error.
Worked in 2.4.12.3.

Steps to reproduce:
see python file. (must be executed with python2)
This task depends upon

Closed by  Jelle van der Waa (jelly)
Saturday, 05 January 2019, 13:56 GMT
Reason for closing:  Deferred
Additional comments about closing:  Please re-open if it's still applicable
Comment by alex (kabolt) - Tuesday, 26 April 2016, 00:57 GMT
I found the cause:
opencv tries to accelerate with opencl but the mesa ati opencl driver crashes.
This is why there is a llvm error.
Removing the opencl driver fixes the bug.
Hope there will be soon a proper opencl implementation.
Comment by Ray Rashif (schivmeister) - Tuesday, 26 April 2016, 16:42 GMT
Thanks for diving into this and apologies for the delay in my response. I will see what can be done about this because it looks like a regression in that case.

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