On Thu, Nov 19, 2009 at 10:05:06PM +0200, Dmitri Vorobiev wrote: > On Thu, Nov 19, 2009 at 7:00 PM, Martin Michlmayr <tbm@xxxxxxxxxx> wrote: > > * Dmitri Vorobiev <dmitri.vorobiev@xxxxxxxxx> [2009-11-19 18:56]: > >> > Some Debian users have reported that the kernel hangs early > >> > during boot on some IP22 systems. Thomas Bogendoerfer found > >> > that this is due to a "bad interaction between CONFIG_EARLY_PRINTK > >> > and overwritten prom memory during early boot". Since there's > >> > no fix yet, disable CONFIG_EARLY_PRINTK for now. > >> > >> Never experienced anything like that, although I'm quite extensively > >> using IP22 with recent kernels. Any details on the hangs? > > > > It doesn't happen on all machines. It has been reported e.g. with an > > Indigo2. See http://bugs.debian.org/507557 > > Interesting, thanks. Good to know that, since one of my machines is Indigo2. I guess is depending on RPOM version and installed memory. I haven't figured out exactly which parts get overwritten, but since we completely ignore ARCS reservered memory and still use ARCS prom calls, it's not a real safe game we are doing. Thomas. -- Crap can work. Given enough thrust pigs will fly, but it's not necessary a good idea. [ RFC1925, 2.3 ]
