bugGNU GRUB - Bugs: bug #22751, GRUB1.96 fails to recognize more...

 
 

You are not allowed to post comments on this tracker with your current authentication level.

bug #22751: GRUB1.96 fails to recognize more than 4GB of memory

Submitted by:  Pierre Baillet <octplane>
Submitted on:  Thu 27 Mar 2008 11:31:04 AM UTC  
 
Category: BootingSeverity: Major
Priority: 5 - NormalItem Group: Software Error
Status: FixedPrivacy: Public
Assigned to: NoneOriginator Name: 
Open/Closed: ClosedRelease: 1.96
Release: 1.98Reproducibility: Every Time
Planned Release: None

Fri 21 May 2010 09:12:08 PM UTC, comment #2:

Author failed to answer Felix' retest request. Additionaly grub 1.98 doesn't seem to exhibit such a bug when tested in qemu

Vladimir Serbinenko <phcoder>
Project Administrator
Fri 22 Aug 2008 07:28:40 PM UTC, comment #1:

the 1.96 release is a bit old, can you (or someone else of course) please try this with current SVN ?
Maybe this has been already fixed in GRUB or something on Xen changed in the meanwhile so it's not needed anymore.

Felix Zielcke <fzielcke>
Project Member
Thu 27 Mar 2008 11:31:04 AM UTC, original submission:

Hi,

This bugs seems to exists in grub legacy but a patch exists (http://lists.xensource.com/archives/html/xen-users/2007-08/msg00028.html) which cannot simply be applied to grub-2.

In grub-2 however, the amount of memory detected is limited to the first 4GB of memory. On a machine having 16GB the kernel reports an incorrect figure.

From the documentation found on the internet this issue arises when using kernel that does not recompute the amount of memory themselves and trust the bootloader to give exact figures.

This is the case when using Xen-3.0.3 and grub-1.96 on debian stable. In my case, I need 1.96 because of a fully LVMed disk.

(XEN) Command line: (racine-os)/boot/xen-3.0.3-1-i386-pae.gz dom0_mem=256M
(XEN) Physical RAM map:
(XEN) 0000000000000000 - 000000000009f000 (usable)
(XEN) 0000000000100000 - 00000000bfb50000 (usable)
(XEN) System RAM: 3066MB (3140540kB)
(XEN) Xen heap: 10MB (10316kB)
(XEN) PAE enabled, limit: 16 GB

This is on x86 architecture.

I hope updating the patch is a matter of minutes to someone knowing the internals of grub-2. I'm afraid it's not my case...

Thanks for providing GRUB.
--
Pierre.

Pierre Baillet <octplane>

 

No files currently attached

 

Depends on the following items: None found

Items that depend on this one: None found

 

Carbon-Copy List
  • -unavailable- added by phcoder (Posted a comment)
  • -unavailable- added by fzielcke (Posted a comment)
  • -unavailable- added by octplane (Submitted the item)
  •  

    Do you think this task is very important?
    If so, you can click here to add your encouragement to it.
    This task has 0 encouragements so far.

    Only logged-in users can vote.

     

    Please enter the title of George Orwell's famous dystopian book (it's a date):

     

     

    Follow 3 latest changes.

    Date Changed By Updated Field Previous Value => Replaced By
    Fri 21 May 2010 09:12:08 PM UTCphcoderStatusNone=>Fixed
      Open/ClosedOpen=>Closed
      ReleaseNone=>1.98

    Back to the top


    Powered by Savane 3.1-cleanup1