RE: DSP MMU Fault

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Hi Can,

> Do you have any ideas why this might be happening and how to fix it?
> Thanks a lot.

Most probably you might not have mapped the address 0x230674a0.


Thank you,
Best regards,
Hari

> -----Original Message-----
> From: linux-omap-owner@xxxxxxxxxxxxxxx [mailto:linux-omap-
> owner@xxxxxxxxxxxxxxx] On Behalf Of Can Bal
> Sent: Thursday, June 04, 2009 6:54 AM
> To: linux-omap@xxxxxxxxxxxxxxx
> Subject: DSP MMU Fault
> 
> Hi everyone,
> 
> I'm implementing a code on DSP but at the time I do a memory allocation at
> the DSP side as:
> 
> short *a;
> a = malloc(192); // (short*)malloc(192) does not work either
> 
> But at this line I get the following error and DSP fails afterwards. Then
> I need to reboot until I can run the application again.
> 
> <6>***** DSPMMU FAULT ***** IRQStatus 0x2
> ***** DSPMMU FAULT ***** IRQStatus 0x2
> <6>***** DSPMMU FAULT ***** faultAddr 0x230674a0
> ***** DSPMMU FAULT ***** faultAddr 0x230674a0
> <6>WMD_DEH_Notify: ********** DEVICE EXCEPTION **********
> WMD_DEH_Notify: ********** DEVICE EXCEPTION **********
> <6>WMD_DEH_Notify: DSP_MMUFAULT,errInfo = 0x0
> WMD_DEH_Notify: DSP_MMUFAULT,errInfo = 0x0
> <6>WMD_DEH_Notify: DSP_MMUFAULT, High Address = 0x2306
> WMD_DEH_Notify: DSP_MMUFAULT, High Address = 0x2306
> <6>WMD_DEH_Notify: DSP_MMUFAULT, Low Address = 0x74a0
> WMD_DEH_Notify: DSP_MMUFAULT, Low Address = 0x74a0
> <6>WMD_DEH_Notify: DSP_MMUFAULT, fault address = 0x230674a0
> WMD_DEH_Notify: DSP_MMUFAULT, fault address = 0x230674a0
> 
> Do you have any ideas why this might be happening and how to fix it?
> Thanks a lot.
> 
> Can
> 
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