Messages in this thread | | | Date | Wed, 29 Sep 1999 10:19:51 -0300 (EST) | From | Arnaldo Carvalho de Melo <> | Subject | Re: Serial console broken in 2.3.18 |
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On Wed, 29 Sep 1999, Tom Livingston wrote:
> > Hello. I have been using a serial console to capture an OOPS I have been > encountering with the ide system. I have been using 2.2.12 + ikd + serial > console to do my work, as I needed the NMI oopser from ikd. > > I just tried switching to 2.3.18, to use ingo molnar's built in NMI oopser > that works great. However, I can't get the serial console to work all the > way through the boot. > > I had the same experience with 2.3.18 and 2.3.18ac10. If serial console is > enabled in kernel and with console flags, everything goes well printing > console boot output to the serial port, until I get to here: > > > [kernel boot log, already in progress...] > > Starting kswapd v1.6 > > Detected PS/2 Mouse Port. > > Serial driver version 4.30 with SHARE_IRQ SERIAL_PCI PCI_IOMEM enabled > > After this point, nothing further is written to the serial port. In fact, > once I've booted I can't send anything else to the serial port either.
I've reported this on this list, I guess your kernel parameters are something like this:
append="console=ttyS1 console=tty0"
change it to just:
append="console=ttyS1"
and all messages will go to the serial console, but you won't get the console messages in tty0, as usual (this is the bug).
> > If I do dmesg > /dev/ttyS1 > cat /proc/tty/driver/serial > shows tx incrementing each time, but nothing is displayed. > > If I disable serial console in the kernel, everything works as expected... > no serial console output, but dmesg > /dev/ttyS1 shows up fine. This > configuration also works fine with 2.2.12 > > ttys are: > ttyS00 at 0x03f8 (irq = 4) is a 16550A > ttyS01 at 0x02f8 (irq = 3) is a 16550A > > config is RH60 base, abit-bp6, dual c366 on board serial ports. Running > SMP.
And if this helps, my machine is a dual PII, SMP enabled, hummm, lemme try with smp disabled...
- Arnaldo
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