Bug 622021 - i386/i686 kernel fails to boot on 8+ CPU "bigsmp" machines without ACPI
Summary: i386/i686 kernel fails to boot on 8+ CPU "bigsmp" machines without ACPI
Keywords:
Status: CLOSED WONTFIX
Alias: None
Product: Red Hat Enterprise Linux 5
Classification: Red Hat
Component: kernel
Version: 5.5
Hardware: i386
OS: Linux
low
medium
Target Milestone: rc
: ---
Assignee: Prarit Bhargava
QA Contact: Red Hat Kernel QE team
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2010-08-06 19:10 UTC by Tom Marshall
Modified: 2011-10-17 14:35 UTC (History)
1 user (show)

Fixed In Version:
Doc Type: Bug Fix
Doc Text:
Clone Of:
Environment:
Last Closed: 2011-10-17 14:35:08 UTC
Target Upstream Version:
Embargoed:

Attachments (Terms of Use)
Fix bigsmp for non-ACPI (435 bytes, patch)
2010-08-06 19:10 UTC, Tom Marshall 		no flags Details | Diff
View All

Description Tom Marshall 2010-08-06 19:10:07 UTC 
Created attachment 437241 [details]
Fix bigsmp for non-ACPI

Description of problem:

bigsmp is not detected in non-ACPI case.  Please find attached patch.
Comment 1 Prarit Bhargava 2010-08-24 18:56:00 UTC 
(In reply to comment #0)
> Created attachment 437241 [details]
> Fix bigsmp for non-ACPI
> 
> Description of problem:
> 
> bigsmp is not detected in non-ACPI case.  Please find attached patch.

Hrmm ...

[root@amd-dinar-05 ~]# cat /etc/redhat-release 
Red Hat Enterprise Linux Server release 5.5 (Tikanga)
[root@amd-dinar-05 ~]# cat /proc/cmdline 
ro root=/dev/VolGroup00/LogVol00 console=ttyS0,115200n81 noacpi pci=noacpi
[root@amd-dinar-05 ~]# dmesg | grep bigsmp
Overriding APIC driver with bigsmp
[root@amd-dinar-05 ~]# cat /proc/cpuinfo | grep processor | wc -l
24

Seems to work on my system.  What system are you using (vendor and model)?

P.
Comment 2 Tom Marshall 2010-09-20 22:44:37 UTC 
The machine should not boot without the fix for bug 622018.

I don't believe noacpi is a valid kernel option.  Can you try with acpi=off instead?
Comment 3 Prarit Bhargava 2011-10-17 14:35:08 UTC 
Unlikely to be fixed for RHEL5.  Closing as WONTFIX.

P.
Note You need to log in before you can comment on or make changes to this bug.