cancel
Showing results for 
Search instead for 
Did you mean: 

Archives Discussions

drallan
Challenger

Very simple kernel crashes compiler

Crash occurs in application code and Kernel Analyzer

It's a bit suprising, but the simple one line kernel in the code window crashs during compile in both application code and in the Kernel Analyzer. Windows crash info is attached. I am using Windows 7 x64 with SDK 2.6 cal version 11.12 (upgraded from 2.4 and 2.5).

Not sure what the cause is. My system is relatively stable. Changing the exact form of the code can prevent the crash, e.g., a larger loop counter or a slighly more complex expression. The problem might occur when the compiler tries to unroll a long loop.

Any feedback is appreciated.

Thanks.

//Kernel crashes aticaldd.bin in Kernel Analyzer using cal 11.12, 11.11 and earlier versions

//APP SDK 2.6, cal 11.12, Windows 7 x64

//-------------------------------------------------------------------------------------------------------

__kernel void systest(__global uint *A)

{

    int gid,gx=get_global_id(0),gy=get_global_id(1);

    uint i; gid=64*gy+gx;

   for(i=0;i<0x8000;i++)A[(i<<10)]=5;

}

//-------------------------------------------------------------------------------------------------------

//Other forms of the loop may or may not crash:

//NOTE: This line prevents crash: for(i=0;i<0x20000;i++)A[(i<<10)]=5;

//NOTE: This line prevents crash: for(i=0;i<0x8000;i++)A[((i<<10)+gid)&0xfffffffc]=5;

/* Crash Report from windows

    Problem Event Name: APPCRASH

   Application Name: AMDAPPKernelAnalyzer.exe

   Application Version: 1.10.0.1149

   Application Timestamp: 4ec4bb5b

   Fault Module Name: aticaldd.dll

   Fault Module Version: 6.14.10.1646

   Fault Module Timestamp: 4ebb3717

   Exception Code: c0000005

   Exception Offset: 00241e54

   OS Version: 6.1.7601.2.1.0.256.1

   Locale ID 33

   Additional Information 1: 0a9e

   Additional Information 2: 0a9e372d3b4ad19135b953a78882e789

   Additional Information 3: 0a9e

   Additional Information 4: 0a9e372d3b4ad19135b953a78882e789 */

Message edited to reformat attachment

0 Likes
13 Replies