On 6 Nov 2014, Johan Hovold said: > On Thu, Nov 06, 2014 at 01:49:13PM +0000, Nix wrote: >> On 5 Nov 2014, Johan Hovold told this: >> > On Wed, Nov 05, 2014 at 03:14:49PM +0000, Nix wrote: > >> > Could you try two more things (too make sure line control is really the >> > culprit): >> > >> > 1. If you clear HUPCL in ekeyd so that the lines are never lowered, does >> > that fix the stability issue? >> >> Definitely not. I got a hang after the first reboot out of an afflicted >> kernel, when using a HUPCLless ekeyd. Weird. (I guess they're lowered on >> reboot anyway?) > > It's actually only the timings related to the control-lines being raised > on open that has changed, so this would seem consistent with that. Urgh. No wonder it was intermittent. > Thanks for tracking this down. That bisect cannot have been fun given > the low failure rate (sometimes only one in ten reboots?). It often failed quite fast, but yes, the negative case was hard to prove: I had to rewind twice. I counted reboots because I'm a flaming aspie pedant. 173 reboots that took... thank goodness it replicated on the machine of mine that's fastest to reboot! -- NULL && (void) -- 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
