On Mon, Feb 07, 2011 at 01:30:54PM +0200, Ahmed S. Darwish wrote: > > Had to explore two C code files to make sense of the 'crashkernel=' > kernel parameter values. Improve the situation. > > Signed-off-by: Ahmed S. Darwish <darwish.07@xxxxxxxxx> Thanks, that looks looks a good improvement over the existing documentation. Acked-by: Simon Horman <horms@xxxxxxxxxxxx> > --- > > diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt > index 89835a4..5ad9980 100644 > --- a/Documentation/kernel-parameters.txt > +++ b/Documentation/kernel-parameters.txt > @@ -545,9 +545,12 @@ and is between 256 and 4096 characters. It is defined in the file > Format: > <first_slot>,<last_slot>,<port>,<enum_bit>[,<debug>] > > - crashkernel=nn[KMG]@ss[KMG] > - [KNL] Reserve a chunk of physical memory to > - hold a kernel to switch to with kexec on panic. > + crashkernel=size[KMG][@offset[KMG]] > + [KNL] Using kexec, Linux can switch to a 'crash kernel' > + upon panic. This parameter reserves the physical > + memory region [offset, offset + size] for that kernel > + image. If '@offset' is omitted, then a suitable offset > + is selected automatically. > > crashkernel=range1:size1[,range2:size2,...][@offset] > [KNL] Same as above, but depends on the memory > > -- > Darwish > http://darwish.07.googlepages.com > -- To unsubscribe from this list: send the line "unsubscribe linux-doc" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
