Public bug reported:
It looks like kernels taken from http://kernel.ubuntu.com/~kernel-ppa/
newer than 3.5 are unable to boot from this device due to some kind of
ATA problem. I have a raid5 setup with 5 disks, which are correctly
detected with 3.4 (any from kernel-ppa) and 3.5 (current quantal
kernel). However, when I go to 3.6 or higher, there seems to be a
problem with detecting some of the disks, and ultimately the system will
fail to boot when setting up md device and cryptsetup.
My device has onboard controller plus additional SATA controller that
has Bluray reader, but that obviously isn't used in any stage of booting
process, but it might be relevant somehow. I have captured dmesg from
the system with both working kernel and from initramfs during boot with
broken kernel. Will attach both.
Also grabbed lspci from working kernel, as initramfs doesn't seem to
have lspci binary present, and I don't have access to the rootfs from
there.
$ lsb_release -rd
Description: Ubuntu 12.10
Release: 12.10
[ 2.392281] ata7: PATA max UDMA/133 cmd 0x1f0 ctl 0x3f6 bmdma 0xf100 irq 14
[ 2.393060] ata7: prereset failed (errno=-19)
[ 2.393063] ata7: reset failed, giving up
[ 2.392371] ata8: PATA max UDMA/133 cmd 0x170 ctl 0x376 bmdma 0xf108 irq 15
[ 2.924032] ata8: prereset failed (errno=-19)
[ 2.924126] ata8: reset failed, giving up
These seem to be the culprit somehow, they aren't failing on the good
kernels. Also note that all those disks are SATA, not sure why the
missing one (which is visible as 'ata9' in good boot) is showing up as
PATA.
** Affects: linux (Ubuntu)
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/1126766
Title:
Kernels newer than 3.5 fail to boot on Asus E45M1 (AMD E450) based
device
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