Richard wrote: > > Date: Sun, 18 Aug 2013 09:37:21 -0500 > > From: Bruce Dubbs <bruce.du...@gmail.com> > > Subject: Re: [lfs-support] Boot problem > > To: LFS Support List <lfs-support@linuxfromscratch.org> > > Message-ID: <5210dc21.3070...@gmail.com> > > Content-Type: text/plain; charset=ISO-8859-1; format=flowed > > > > Richard wrote: > >> I have a LFS 7.2 system and a Shuttle AV49 motherboard. > >> About one time in every 20 bootups, my computer hangs > >> up and I have to power it down and back up. When it > >> hangs, the last line I see on the monitor is: > >> > >> Serial: 8250/16550 driver, 4 ports, IRQ sharing enabled > >> > >> When it boots successfully, the next line I see is: > >> > >> serial8250: ttyS0 at I/O 0x3f8 (irq = 4) is a 16550A > >> > >> So it appears that the problem has something to do with > >> the uart. I've tried searching the web and I did find > >> some mention of a potential problem detecting the uart, > >> but I didn't find a solution. Is anyone aware of this > >> particular problem? I assume it is a kernel bug of some > >> kind. I haven't been able to get any useful information > >> from the logs, everything just seems to stop at the > >> above point. > > > > I'd say it's more likely a hardware problem. > > > > Are you using the serial port at all? If not, just disable all > > configuration items in the kernel regarding serial ports. > > > > -- Bruce > > I don't use the serial port often, but I'd like to have the option > of using it.
Build the 8250 UART support as a module and check if the boot process still stops. If you need the UARTs just load the driver module. > I'm sceptical that it is a hardware problem, since this problem > doesn't show up with my other operating systems, which include > LFS 6.2, PCLinux OS, Windows XP and Windows 98. Maybe broken ACPI tables where newer kernels stumble across. Build as much features as a module and try again. Load the modules if you need their features and see what happens. Juergen -- http://linuxfromscratch.org/mailman/listinfo/lfs-support FAQ: http://www.linuxfromscratch.org/lfs/faq.html Unsubscribe: See the above information page
