Testing with Linux 2.7.26-2 i386 on Dell 530 with latest BIOS (version 1.0.15 (06/20/2008) in BIOS IDE mode shows up tens of thousands of interrupts on IRQ 19, shared by uhci_hcd and ata_piix during kernel initialization. Debugging this clearly shows that these are IDE specific interrupts which are not handled until ata_piix is loaded. This is not an issue once ata_piix is loaded, and system behaves totally normally there after.
Suggested remedy is to re-order the loading of these two modules in initramfs, loading ata_piix first. Attached is a depdiff to patch the options file in module_init_tools. This patch will reduce the number of unhandled IDE interrupts at kernel startup. ** Attachment added: "module-init-tools.debdiff" http://launchpadlibrarian.net/17258573/module-init-tools.debdiff -- Dell Inspiron 530 SATA drive not detected in IDE mode https://bugs.launchpad.net/bugs/153702 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
