> Yeah, I'm suspecting there's a loophole in the logic there somewhere. > > I dusted off the 6041 reference card I have here, and played with the cables for a while. Managed to > get one port to stop responding to hot plug fairly quickly, though I'm not sure how/why. > > Then I added a debug printk() to mv_write_main_irq_mask(), with no other changes, and that appears to > have been enough to change the race timing so that I could no longer produce the problem. > > Bruce, here's a slightly-ugly patch that should remove all doubt about races in the irq_mask. Please > apply it, test with it, and let me know here if the issue goes away. > > Thanks Thanks Mark. I was about to try out some tracing in writelfl because I suspected the irq mask was getting clobbered somewhere along the way, but I'd been distracted by other work. I shall try your patch out as soon as I can, and report back. Cheers, Bruce. Bruce Stenning, IndigoVision, b <dot> stenning <at> indigovision <dot> com Latest News at: http://www.indigovision.com/index.php/en/news.html ÿô.nlj·Ÿ®‰†+%ŠË±é¥Šwÿº{.nlj·¥Š{±þ'^þ)íè jg¬±¨ ¶‰šŽŠÝjÿ¾«þG«é¸ ¢·¦j:+v‰¨Šwèm¶Ÿÿþø®w¥þŠà£¢·hšâÿ†Ù
