On Sat, 7 Apr 2012, Xi Wang wrote: > On Apr 6, 2012, at 10:55 PM, Alan Stern wrote: > > > That number seems much too small. People run usbtest for days at a > > time. Admittedly, they probably run a bunch of relatively short tests > > over and over again, but we shouldn't rule out the possibility of > > running a long test. > > You are right. How about a conservative fix? > > - limit `sglen' to not overflow `sglen * sizeof(struct scatterlist)'; > > - limit `sglen' to not overflow `sglen * iterations'. Yes, that would be fine. > Greg was worried that a large `sglen' would still lead to allocating > a large chunk of memory. I have got no idea what a good value would > be to achieve this while not breaking userspace. Alan Stern -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
