On Sun, Oct 18, 2015 at 9:43 AM, Stas Sergeev <s...@list.ru> wrote: > 18.10.2015 19:36, Andy Lutomirski пишет: > >> On Sun, Oct 18, 2015 at 9:29 AM, Stas Sergeev <s...@list.ru> wrote: >>> >>> 18.10.2015 19:12, Andy Lutomirski пишет: >>>> >>>> On Sun, Oct 18, 2015 at 6:36 AM, Stas Sergeev <s...@list.ru> wrote: >>>>> >>>>> 15.10.2015 00:41, Andy Lutomirski пишет: >>>>>>> >>>>>>> If this my >>>>>>> understanding is correct and the flag is just an indication rather >>>>>>> than a requested action, perhaps the name should be different, >>>>>>> e.g. UC_SIG_FROM_32BIT or the like? >>>>>>> Anyway, this is minor. :) >>>>>>> I'll try to test the patch within a few days, thanks for you time! >>>>>> >>>>>> No problem. Thanks for being willing to test! >>>>> >>>>> Hello Andy, I am unlucky at testing this. >>>>> dosemu doesn't even start for me on the git kernels. >>>>> After a half day of debugging, it seems the kernel forgets >>>>> to fill in the "err" field in the sigcontext struct when >>>>> page fault occurs. That confuses the dosemu's instruction >>>>> decoder. >>>>> Does this ring any bells? >>>> >>>> No, but I can reproduce it on some kernels. Let me see if I can fix it, >>>> too. >>> >>> Thanks! >>> You should really consider adding dosemu as your test-case. >>> It feels very unhappy on all recent kernels. I was getting hard >>> lock-ups under different circumstances (when starting windows, >>> for example). But fedora-packaged kernels are quite good, as of >>> yet. I fear the problems will soon populate to them too. >> >> I'll work on that. It's a lot easier to have a packaged set of tests >> that say yes/no, though, and it's handy when those tests are fully >> open-source and easy to run (DOSEMU, in contrast, requires the >> annoyingly impossible-to-compile freedos stuff iirc, and the >> interesting bits need other test programs). In any case, I'll add a >> self-test for the >> err thing once I figure out what's going on. > > I meant just a local test-case on your PC. :) > It can't be a part of an automated test-suit of course. > But after changing anything in vm86 or signal handling, > running dosemu will never hurt, as it is probably the > most rigorous test-case for them. I deduce that based > on its breakage frequency with the kernel updates.
Point taken. Anyway, the bug was an error in the patches I sent out and aren't in anyone's tree yet, so there's no big worry here. I'll send out new patches after incorporating feedback and poking at it a bit. --Andy -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
