On 01/30/2014 03:43 PM, Andiry Xu wrote: > On Thu, Jan 30, 2014 at 2:54 PM, Randy Dunlap <rdunlap@xxxxxxxxxxxxx> wrote: >> On 01/30/2014 02:17 PM, David Rientjes wrote: >>> On Thu, 30 Jan 2014, Randy Dunlap wrote: >>> >>>>>>> Hi, >>>>>>> >>>>>>> In kernel-parameters.txt, there is following description: >>>>>>> >>>>>>> memmap=nn[KMG]$ss[KMG] >>>>>>> [KNL,ACPI] Mark specific memory as reserved. >>>>>>> Region of memory to be used, from ss to ss+nn. >>>>>> >>>>>> Should be: >>>>>> Region of memory to be reserved, from ss to ss+nn. >>>>>> >>>>>> but that doesn't help with the problem that you describe, does it? >>>>>> >>>>> >>>>> Actually it should be: >>>>> Region of memory to be reserved, from nn to nn+ss. >>>>> >>>>> That is, exchange nn and ss. >>>> >>>> Yes, I understand that that's what you are reporting. I just haven't yet >>>> worked out how the code manages to exchange those 2 values. >>>> >>> >>> It doesn't, the documentation is correct as written and could be improved >>> by your suggestion of "Region of memory to be reserved, from ss to ss+nn." >>> I think Andiry probably is having a problem with his bootloader >>> interpreting the '$' incorrectly (or variable expansion if coming from the >>> shell) or interpreting the resulting user-defined e820 map incorrectly. >>> -- >> >> Yeah, I certainly don't see a problem with the code and I would want to >> see/understand that before I exchanged the 2 values in the documentation. >> >> I'll submit a patch to make the wording a bit better. >> > > I'm using Ubuntu 13.04 with GRUB2. If it's a bootloader issue, what should I do? See https://bugs.launchpad.net/ubuntu/+source/grub2/+bug/448413 i.e., use shell escape '\' character. -- ~Randy -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxx. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>