Re: [patch] "big IRQ lock" removal, 2.5.27-A1

Russell King
2002-07-21T21:15:10Z

On Sun, Jul 21, 2002 at 11:09:34PM +0200, Ingo Molnar wrote:
> using serial-2.5.26-3.diff, i get an oops here:
>
> (gdb) list *0xc01b1f03
> 0xc01b1f03 is in serial_in (serial_8250.c:189).
> 184 return readb(up->port.membase + offset);
> 185
> 186 default:
> 187 return inb(up->port.iobase + offset);
> 188 }
> 189 }
> 190
> 191 static _INLINE_ void
> 192 serial_out(struct uart_8250_port *up, int offset, int value)
> 193 {
> (gdb)

Interesting. Not had a report of that thus far. Can you send me any
kernel messages relating to serial devices please, and the bad address
that caused the oops? (line 189 is obviously a lie...)

> when echo-ing into a serial port, which is also set up for kernel serial
> console. (the kernel serial console produces no output.)

Weird. Currently I've no idea what's causing this; I've been booting
machines with "console=ttyS0,115200n8" fine here with no noticable
problems.

Again, any useful kernel messages?

--
Russell King (rmk@arm.linux.org.uk) The developer of ARM Linux