[Bug 397096] Re: ata exception and hang when booting, at T=n.81606 s

[Danny]

Hi all,
this my first time reporting bugs, so sorry if i do stomething wrong

it seems that i am affected by this bug:

Ubuntu 9.10, ext4

Mar 18 01:15:46 htpc kernel: [ 6796.065007] ata4.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x6 frozen
Mar 18 01:15:46 htpc kernel: [ 6796.065019] ata4.00: cmd c8/00:80:bf:26:3c/00:00:00:00:00/e6 tag 0 dma 65536 in
Mar 18 01:15:46 htpc kernel: [ 6796.065020]          res 40/00:01:00:4f:c2/00:00:00:00:00/00 Emask 0x4 (timeout)
Mar 18 01:15:46 htpc kernel: [ 6796.065024] ata4.00: status: { DRDY }
Mar 18 01:15:51 htpc kernel: [ 6801.112985] ata4: link is slow to respond, please be patient (ready=0)
Mar 18 01:15:56 htpc kernel: [ 6806.100984] ata4: device not ready (errno=-16), forcing hardreset
Mar 18 01:15:56 htpc kernel: [ 6806.100994] ata4: soft resetting link
Mar 18 01:15:57 htpc kernel: [ 6807.537346] ata4.00: configured for UDMA/133
Mar 18 01:15:57 htpc kernel: [ 6807.537346] ata4.00: device reported invalid CHS sector 0
Mar 18 01:15:57 htpc kernel: [ 6807.537346] ata4: EH complete

i tried the following workarounds:

tuning with pdflush
booting with acpi=off pci=nomsi
"inserted cd" workaround <- what kind of CD-ROM do you have? ide or sata?

none worked

the system boots without problems (sometimes i have to fsck because of the freeze)
after a while it freezes showing the errors above

i still need to try the nohdparm option and the hdparm-wrapper-script

any other ideas?

-- 
ata exception and hang when booting, at T=n.81606 s
https://bugs.launchpad.net/bugs/397096
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