chen.tian at acm.org
Thu Jul 21 20:14:58 CEST 2011
Please ignore the message I sent yesterday. I have figured it out. Thanks.
On Wed, Jul 20, 2011 at 5:54 PM, Chen Tian <chen.tian at acm.org> wrote:
> Why was a sender's send item (e.g. mr and mr ) merged and stored
> into the receiver's mr?
> Basically I have trouble understanding the following code.
> *rcv_words=(item->b.raw() & ~0x0ff7) | (sfp.raw())&0x0ff0); rcv_word +=2 ;
> Why didn't we use receiver's mr as well? In the case of page fault
> handling IPC, the pf address stored in sender's mr is not used ?
More information about the l4-hackers