On Fri, Jan 12, 2007 at 11:46:39AM -0800, Jay Lan wrote: > Horms wrote: > > Hi, > > > > this patch fills in the portions for ia64 kexec. > > > > I'm actually not sure what options are required for the dump-capture > > kernel, but "init 1 irqpoll maxcpus=1" has been working fine for me. > > Or more to the point, I'm not sure if irqpoll is needed or not. > > > > This patch requires the documentation patch update that Vivek Goyal has > > been circulating, and I believe is currently in mm. Feel free to fold it > > into that change if it makes things easier for anyone. > > > > Take II > > > > Nanhai, > > > > I have noted that vmlinux.gz may also be used. And added a note about the > > kernel being able to automatically place the crashkernel region. > > Furthermore, I added a note that if manually specified, the region should > > be 64Mb aligned to avoid wastage. I notice that the auto placement code > > uses 64Mb. But is this strictly neccessary for all page sizes? > > > > Signed-off-by: Simon Horman <[EMAIL PROTECTED]> > > > > Index: linux-2.6/Documentation/kdump/kdump.txt > > =================================================================== > > --- linux-2.6.orig/Documentation/kdump/kdump.txt 2007-01-12 > > 17:45:19.000000000 +0900 > > +++ linux-2.6/Documentation/kdump/kdump.txt 2007-01-12 17:59:42.000000000 > > +0900 > > @@ -17,7 +17,7 @@ > > memory image to a dump file on the local disk, or across the network to > > a remote system. > > > > -Kdump and kexec are currently supported on the x86, x86_64, ppc64 and IA64 > > +Kdump and kexec are currently supported on the x86, x86_64, ppc64 and ia64 > > architectures. > > > > When the system kernel boots, it reserves a small section of memory for > > @@ -229,7 +229,23 @@ > > > > Dump-capture kernel config options (Arch Dependent, ia64) > > ---------------------------------------------------------- > > -(To be filled) > > + > > +- No specific options are required to create a dump-capture kernel > > + for ia64, other than those specified in the arch idependent section > > + above. This means that it is possible to use the system kernel > > + as a dump-capture kernel if desired. > > + > > + The crashkernel region can be automatically placed by the system > > + kernel at run time. This is done by specifying the base address as 0, > > + or omitting it all together. > > In my testing, i found the base address was ignored. Whatever value > specified was fine. Not necessary to be 0. But i guess it is fine to > give people a guideline telling them to specify 0.
I submitted a patch to honour non-zero base addresses, I'm pretty sure it is in there now. -- Horms H: http://www.vergenet.net/~horms/ W: http://www.valinux.co.jp/en/ - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
