On 30 January 2013 13:03, Andriy Gapon <[email protected]> wrote: > on 28/01/2013 16:30 Andriy Gapon said the following: >> is there any reasonable explanation for getting an NMI while trying to read >> acpi >> timer register? >> Note: this happens only after ACPI suspend/resume. > > An update. > This happens only with clang compiled kernel, gcc compiled kernel is OK. > Also, this happens only in the depth of fwohci driver (where it calls DELAY). > If firewire is not loaded, then there is no problem. > > I suspect that perhaps there is some miscompilation that results in some > incorrect I/O access that later leads to NMI. Too many unknowns and guesses > here, obviously.
Do you have stack traces showing where it's happening? Posting that and the disassembly from those areas may shed a clue. Adrian _______________________________________________ [email protected] mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-hackers To unsubscribe, send any mail to "[email protected]"
