Bug 436485 - F-9 pv_ops xen: x86_64 kernel fails to boot
Summary: F-9 pv_ops xen: x86_64 kernel fails to boot
Keywords:
Status: CLOSED RAWHIDE
Alias: None
Product: Fedora
Classification: Fedora
Component: kernel-xen-2.6
Version: rawhide
Hardware: All
OS: Linux
high
high
Target Milestone: ---
Assignee: Eduardo Habkost
QA Contact: Fedora Extras Quality Assurance
URL:
Whiteboard:
Depends On:
Blocks: PvOpsTracker
TreeView+ depends on / blocked
 
Reported: 2008-03-07 15:36 UTC by Mark McLoughlin
Modified: 2008-03-10 21:08 UTC (History)
3 users (show)

Fixed In Version:
Clone Of:
Environment:
Last Closed: 2008-03-10 21:08:32 UTC
Type: ---
Embargoed:

Attachments (Terms of Use)

Description Mark McLoughlin 2008-03-07 15:36:57 UTC 
The latest rawhide kernel-xen (kernel-xen-2.6-2.6.25-0.1.rc4.fc9), fails to boot
on x86_64:

  [<ffffffff8142d7e0>] __alloc_bootmem_core+0x2c8  <--
  [<ffffffff8142d7e0>] __alloc_bootmem_core+0x2c8 
  [<ffffffff8142d654>] __alloc_bootmem_core+0x13c 
  [<ffffffff8142d946>] __alloc_bootmem_node+0x25 
  [<ffffffff812862ac>] sparse_index_alloc+0x48 
  [<ffffffff8142ea2c>] memory_present+0x51 
  [<ffffffff81429c1d>] paging_init+0x3d 
  [<ffffffff81420e4c>] setup_arch+0x57b 
  [<ffffffff8141980c>] start_kernel+0x84 
  [<ffffffff8141f850>] xen_start_kernel+0x32f 

Eduardo is investigating, but what's been determined so far:

  - It boots fine with Eduardo's original config, but not the stock fedora 
    config

  - CONFIG_SPARSEMEM would look to be the obvious culprit, but Eduardo
    had that enabled in his config

  - It could be this:

     -CONFIG_PHYSICAL_START=0x200000
     -CONFIG_PHYSICAL_ALIGN=0x200000
     +CONFIG_PHYSICAL_START=0x1000000
     +CONFIG_PHYSICAL_ALIGN=0x200000

    but reverting that just makes it crash somewhere else
Comment 1 Eduardo Habkost 2008-03-07 17:35:22 UTC 
.config changes for x86_64 committed to Fedora CVS. Changed PHYSICAL_START and 
SPARSEMEM_VMEMMAP so it doesn't explode on boot.
Comment 2 Eduardo Habkost 2008-03-10 21:08:32 UTC 
kernel-xen 2.6.25-0.2.rc4.fc9xen package is on Rawhide.
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