Description of problem: When booting FC4 i386 on the IBM HS20 8832 blade, the machine hang when starting Anaconda. the last line printed on the console is 'running /sbin/loader'. You see a flash where the display goes black and comes back and that is it. ALT key sequences to switch VT have no effect booting with acpi=noirq allows the installation to succeed Version-Release number of selected component (if applicable): FC4 How reproducible: every time, unless acpi=noirq or acpi=off is specified Steps to Reproduce: 1. attempt to install HS20 8832 blade with FC4 2. 3. Actual results: hang when starting anaconda, unless acpi=noirq is specified Expected results: acpi=noirq should not be needed Additional info: This is the IBM HS20 blade with dual Intel Xeon x86 processors. It has optional support for IDE-RAID (LSI MegaIDE) which can be enabled/disabled in the BIOS. With RAID disabled, the disks look like regular IDE drives. The problem is the same with IDE-RAID enabled or disabled, when acpi=noirq is not passed, although when it is enabled the kernel boots very slowly with lots of 'lost interrupt' messages from the IDE drives. With acpi=noirq the install works for both the non-raid and the raid mode (dmraid works).
Created attachment 115829 [details] bootlog of HS20 8832 blade with IDE RAID (MegaIDE) enabled, when not passing noirq
[This comment has been added as a mass update for all FC4 kernel bugs. If you have migrated this bug from an FC3 bug today, ignore this comment.] Please retest your problem with todays 2.6.12-1.1398_FC4 update. If your problem involved being unable to boot, or some hardware not being detected correctly, please make sure your /etc/modprobe.conf is correct *BEFORE* installing any kernel updates. If in doubt, you can recreate this file using.. mv /etc/sysconfig/hwconf /etc/sysconfig/hwconf.bak mv /etc/modprobe.conf /etc/modprobe.conf.bak kudzu Thank you.
I installed the updated 2.6.12-1.1398_FC4 i686 SMP kernel, and removed acpi=noirq from grub.conf and rebooted. The system came back up without any problems, so this issue can be closed.