ata4: exception Emask 0x73 SAct 0x0 SErr 0xffffffff action 0xe frozen
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
linux (Ubuntu) |
Expired
|
Undecided
|
Unassigned |
Bug Description
Hi,
I have install ubuntu 9.04 on a asus A7SV notebook and I have hundred of error messages in kernel.log.
I have no error in any applications but the computeur is really slowing down and becomes not usable.
My root partition use ext4. I haven't trying an installation with ext3.
I have also trying with an 2.6.31-r2 kernel from PPA but i have the same error messages
ata4: exception Emask 0x73 SAct 0x0 SErr 0xffffffff action 0xe frozen
ata4: irq_stat 0xffffffff, unknown FIS 00000000 00000000 00000000 00000000, host bus
ata4: SError: { RecovData RecovComm UnrecovData Persist Proto HostInt PHYRdyChg PHYInt CommWake 10B8B Dispar BadCRC Handshk LinkSeq TrStaTrns UnrecFIS DevExch }
ata4: hard resetting link
ata4: SATA link down (SStatus FFFFFFFF SControl FFFFFFFF)
I upload serval kernel.log with 2.6.28-13 and 2.6.31-2
regards
jm
I have had this similar problem since 8.04, 8.10 and 9.04 also experience the same issues.
The problem arises when the graphics card is active and disk access is performed.
I have tried nvidia-glx 180, 173, but not 96 or 71.
Disabling the nvidia module makes the problem go away.
The main suspect is the fact that ahci and nvidia share the same interrupt, seen here from /proc/interrupts on my machine.
16: 6514 6483 IO-APIC-fasteoi ahci, uhci_hcd:usb3, ohci1394, nvidia
It seems to be restricted to Asus platforms, as no one else seems to have the same problem.
Platform: Asus G2S, nVidia GeForce 8600M GT
Thanks
ecks