Francesco Gringoli wrote: > On Aug 5, 2009, at 1:07 PM, Peter Lemenkov wrote: > >> Hello,All! >> Here is a bug report regarding DMA issues with openfwwf ver. 5.2 . I >> suspect, that this is a known issue, but anyway, maybe this bugzilla >> ticket will add something important. >> >> > Hi Peter, > > many thanks. I added a note on the website. I have a few cards like > that, I will do some tests to catch the bug.
Francesco, This bug is the same as the one I reported for both my 4311 and my 4318. When the TX status interrupt is entered for a particular cookie, the skb is freed, and the buffer pointer is replaced with a NULL. The kernel panic reported here is the result of detecting a NULL value for that buffer pointer. I think the conclusion is that the firmware is calling the interrupt routine with a cookie that was previously reported. Why? I don't know. Even with the source to look at, firmware is a big mystery. Larry _______________________________________________ Bcm43xx-dev mailing list [email protected] https://lists.berlios.de/mailman/listinfo/bcm43xx-dev
