Re: panic: non-current pmap 0xffffa00020eab8f0 on Rpi3
bob prohaska <[email protected]>
| Newsgroups | gmane.os.freebsd.devel.arm,gmane.os.freebsd.current |
|---|---|
| Message-ID | <[email protected]> |
On Tue, Oct 20, 2020 at 12:30:05PM -0400, Mark Johnston wrote: > > I set up a RPi3 to try and repro this and have so far managed to trigger > it once using Peter Holm's stress2 suite, so I'll keep investigating. I > hadn't configured a dump device, but I was able to confirm from DDB that > PCPU_GET(curpmap) == &vmspace0->vm_pmap. > Is the invalid pmap fault related in any way to intensity of swap usage? That's easily adjusted using -j values building things like www/chromium. In the past, when I've reported crashes caused by stress2 I've observed a "that's inevitable" sort of response with some regularity. Panics when doing more normal things like make seem to stimulate greater interest. > For future reference, > https://www.freebsd.org/doc/en_US.ISO8859-1/books/developers-handbook/kerneldebug.html The pieces are all in place, but the machine doesn't seem to find core dumps when coming up after a crash. It does routinely issue "no core dumps found" during reboot, so it's looking. It it necessary to issue a dump command from inside the debugger? Thanks for writing! bob prohaska _______________________________________________ [email protected] mailing list https://lists.freebsd.org/mailman/listinfo/freebsd-arm To unsubscribe, send any mail to "[email protected]"