[Bug 91078] New: [BSW]OpenCL/utests hang sporadically

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=91078

            Bug ID: 91078
           Summary: [BSW]OpenCL/utests hang sporadically
           Product: DRI
           Version: DRI git
          Hardware: All
                OS: Linux (All)
            Status: NEW
          Severity: normal
          Priority: medium
         Component: DRM/Intel
          Assignee: intel-gfx-bugs at lists.freedesktop.org
          Reporter: mengmeng.meng at intel.com
        QA Contact: intel-gfx-bugs at lists.freedesktop.org
                CC: intel-gfx-bugs at lists.freedesktop.org

Created attachment 116682
  --> https://bugs.freedesktop.org/attachment.cgi?id=116682&action=edit
dmesg

==Regression==
--------------------------
Regression: No. 
Ubuntu: 14.04

==kernel==
--------------------------
drm-intel-next-queued: git-8c6cda

==Test cases==
Beignet: git://anongit.freedesktop.org/git/beignet (master git-e64445f)


==Bug detailed description==
-----------------------------
OpenCL/utests may hang on BSW sporadically(~20%). And the fail tests are not
specific. The issue doesn't exist on other platforms(IVB/HSW/BDW).
Please see the attached dmesg.

(gdb) bt
==================
#0  0x00007f6fb5bb1337 in ioctl () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f6fb4cd6e74 in drmIoctl (fd=6, request=request at entry=1074553951,
arg=arg at entry=0x7ffdca8d7840) at xf86drm.c:164
#2  0x00007f6fb4ee68f7 in drm_intel_gem_bo_map (bo=0x1505f50, write_enable=1)
at intel_bufmgr_gem.c:1325
#3  0x00007f6fb5880446 in cl_mem_map (mem=0x14dc4a0, write=write at entry=1) at
/home/OpenCL/beignet/src/cl_mem.c:1908
#4  0x00007f6fb586f223 in clMapBufferIntel (mem=<optimized out>,
errcode_ret=0x7ffdca8d790c) at /home/OpenCL/beignet/src/cl_api.c:3215
#5  0x00007f6fb65af04e in test_copy_buf (sz=1024, cb=512, dst_off=0,
src_off=<optimized out>) at /home/OpenCL/beignet/utests/enqueue_copy_buf.cpp:24
#6  enqueue_copy_buf () at /home/OpenCL/beignet/utests/enqueue_copy_buf.cpp:61
#7  0x00007f6fb65af4bd in __ANON__enqueue_copy_buf__ () at
/home/OpenCL/beignet/utests/enqueue_copy_buf.cpp:66
#8  0x00007f6fb63b92df in UTest::runAllNoIssue () at
/home/OpenCL/beignet/utests/utest.cpp:169
#9  0x0000000000401786 in main (argc=1, argv=0x7ffdca8d8308) at
/home/OpenCL/beignet/utests/utest_run.cpp:104

==Reproduce steps==
---------------------------- 
1. utests/utest_run

-- 
You are receiving this mail because:
You are the QA Contact for the bug.
You are on the CC list for the bug.
You are the assignee for the bug.
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.freedesktop.org/archives/intel-gfx-bugs/attachments/20150624/369b8fba/attachment.html>