On Thu, Nov 03, 2016 at 06:25:46PM -0600, Peter Hurley wrote: > On Wed, Nov 2, 2016 at 9:29 AM, Nathan Zimmer <nzimmer@xxxxxxx> wrote: > > On Mon, Oct 31, 2016 at 08:55:49PM -0600, Peter Hurley wrote: > >> On Mon, Oct 31, 2016 at 2:27 PM, Sean Young <sean@xxxxxxxx> wrote: > >> > On Sun, Oct 30, 2016 at 10:33:02AM -0500, Nathan wrote: > >> >> I think this should be PNP0501 instead of PNP0c02. > >> >> Once I alter that then when I boot the serial comes up on irq 3. However it > >> >> still hangs. > >> >> I'll keep digging. > >> > > >> > Well that's that theory out of the window. I'm not sure where to look now, > >> > I would start by enabling as many as possible of the "kernel hacking" config > >> > options and see if anything gets caught. > >> > > >> > Looking at your earlier messages, you have a collection of percpu allocation > >> > failures. That might be worth resolving before anything else. > >> > >> Hi Nathan, > >> > >> Couple of questions: > >> 1. Was login over serial console setup and working on SLES 11? or was > >> the 'console=ttyS1' only for debug output? > >> I ask because console output doesn't use IRQs; iow, maybe the serial > >> port w/ driver never actually worked. > >> 2. Can you post dmesg for the SLES 11 setup? That would show if there > >> were probe errors even on that. > >> > >> An alternative that should be equivalent to your previous setup is to > >> build w/ CONFIG_SERIAL_8250_PNP=n > >> Seems like your ACPI BIOS is buggy, but also that something else is using IRQ 3? > >> > >> Regards, > >> Peter Hurley > > > > > > > > 1) Yes I can confirm I used it to login sometimes. > > > > I built with CONFIG_SERIAL_8250_PNP=n and that seemed to work better, in that the system did not hang. > > However I couldn't login on the serial and got these error messages, I suspect I broke something while trying different permutations. > > > > gdm[5206]: WARNING: GdmDisplay: display lasted 0.136636 seconds > > gdm[5206]: WARNING: GdmDisplay: display lasted 0.180955 seconds > > gdm[5206]: WARNING: GdmDisplay: display lasted 0.161415 seconds > > gdm[5206]: WARNING: GdmLocalDisplayFactory: maximum number of X display failures reached: check X server log for errors > > > > It did boot all the way though. > > > > 2) attached log > > So I'm confused where this leaves us. > > In your OP, you claim to have gotten it working with a partial revert > of commit 835d844d1a28 (but you didn't attach the partial revert so no > one knows what you did); however, my suggestion should have been > equivalent. I apologize, if I was unclear. Your suggestion of CONFIG_SERIAL_8250_PNP=n did successfully boot and provide messages across the console, and yes is basically equivelent to the revert. Those warnings I just noticed in the dmesg and they weren't there before. > > Note that you have the serial port disabled in BIOS; that's why you're > getting the probe error for PNP. > > Regards, > Peter Hurley Now when you say its diabled in bios, how can I be sure and double check that? These bios screens do not have any mention of PNP settings. I am getting output over the console (via ipmi) until the boot hangs. Nate -- To unsubscribe from this list: send the line "unsubscribe linux-serial" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
