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Tips for resolving hpfBadPmap?

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Tips for resolving hpfBadPmap?

Subject: Tips for resolving hpfBadPmap?
From: david tay <email@hidden>
Date: Thu, 16 Mar 2006 10:39:27 -0800

Hi,

I'm getting random kernel panics when my kext is used with the following message -

Program received signal SIGTRAP, Trace/breakpoint trap.

0x0009ff50 in hpfBadPmap ()

It seems that the physical mapping is somehow incorrect. Any ideas on what could be causing this?

My memory allocations are done either

myMemory = IOMalloc(),

buffer = IOBufferMemoryDescriptor:withOptions(kIODirectionInOut, some_computed_size, page_size);

bufferPtr = buffer->getBytesNoCopy();

buffer2 = OSTypeAlloc(),

buffer2->initSubRange();

buffer2->prepare();

Thanks,

David

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