Created attachment 344152 [details] core enumeration in dmesg, shows 8 core limit Description of problem: Install Fedora 10 32-bit on a Toonie 2 socket system with Istanbul processors This system has 12 cores that should be enumerated. Version-Release number of selected component (if applicable): Redhat Fedora 10 32-bit (Kernel 2.6.27.5-117) How reproducible: everytime Steps to Reproduce: 1.Install Fedora 10 32-bit 2.Reboot 3.Check /proc/cpuinfo and dmesg for number of cores enumerated Actual results: Only 8 cores are enumerated Expected results: All 12 cores need to be enumerated. Additional info:
Created attachment 344154 [details] NR CPUs is set to 32, theoritically the OS should be able to enumerate 12 CPUs
In older RHEL kernels (2.6.9) a large-smp kernel had to be used to enumerate >8 core count systems. However I wouldn't think that Fedora 10 would have such limitations.
Modifying steps to reproduce, as there is an issue installing the OS on Toonie. Steps to Reproduce: 1.Install Fedora 10 32-bit 2.Install fails
This was fixed in an update, kernels after 2.6.27.15-170.2.20 will detect up to 32 processors.
Great. I'm not familiar with Fedora updates; I need a link or instructions to pass on to AMD QA. Thanks, Bhavna
(In reply to comment #5) > Great. I'm not familiar with Fedora updates; I need a link or instructions to > pass on to AMD QA. > Open a command window and run the command 'yum update kernel' as root. Or install the latest respin if you want to test new installs: http://fedoraunity.org/news-archives/fedora-unity-releases-fedora-10-re-spin I can't help with how to download the respin and make the install discs though. Marking this bug as fixed by the kernel update, reopen the bug if it doesn't work.