Devvrat Tripathi wrote: > I wanted to ask you if current pid will work at the driver level. i > used in pci-gart.c to get the processes which are using DMA transfer > but stragely i get 0 sometimes and sometime proper pid's. I cant > figure out some dma are initiated from the halve of interrupt, which may not be associated with a valid task context. > the reason for this strange behaviour. Is there a better way to find > out who actually initiated the IO transfer which is using the dma_ops > functions. Can anybody please help me in this regard. WARN_ON() it and check the stack trace. > thanking you > > Devvrat -- This space was intended to be left blank. -- To unsubscribe from this list: send an email with "unsubscribe kernelnewbies" to ecartis@xxxxxxxxxxxx Please read the FAQ at http://kernelnewbies.org/FAQ
