On Wed, Oct 14, 2009 at 01:09:26PM +0100, David Woodhouse wrote:
> On Fri, 2009-10-09 at 18:47 -0700, Andy Isaacson wrote:
> > Well, we don't know for sure what happened on the previous boot where
> > the filesystem corruption occurred. I'm imagining a nightmare scenario
> > where GPU erroneous writes cause DMAR faults and handling them somehow
> > causes AHCI DMA requests to get lost.
>
> Seems unlikely. The GPU faults happen whenever the GATT changes, because
> it translates _every_ address in the GATT through the IOMMU right there
> and then -- so if parts of the table are uninitialised, they'll cause
> stray write faults. But no writes are actually _happening_.
>
> > I'm going to go ahead on the theory that the BIOS needs an update.
>
> I can't really imagine how that would help; how the BIOS would be
> responsible for this. I'm more inclined to blame the drive. It's not an
> SSD, is it?
It's a Fujitsu (now serviced by Toshiba?) MHZ2160BH. smartctl says:
Device Model: FUJITSU MHZ2160BH G1
Serial Number: K60WT8C2HHRS
Firmware Version: 0084000A
User Capacity: 160,041,885,696 bytes
...
ID# ATTRIBUTE_NAME FLAG VALUE WORST THRESH TYPE UPDATED WHEN_
FAILED RAW_VALUE
1 Raw_Read_Error_Rate 0x000f 100 100 046 Pre-fail Always -
219593
2 Throughput_Performance 0x0005 100 100 030 Pre-fail Offline -
27721728
3 Spin_Up_Time 0x0003 100 100 025 Pre-fail Always -
0
4 Start_Stop_Count 0x0032 099 099 000 Old_age Always -
406
5 Reallocated_Sector_Ct 0x0033 100 100 024 Pre-fail Always -
8589934592000
7 Seek_Error_Rate 0x000f 100 100 047 Pre-fail Always -
112
8 Seek_Time_Performance 0x0005 100 100 019 Pre-fail Offline -
0
9 Power_On_Hours 0x0032 097 097 000 Old_age Always -
1598
10 Spin_Retry_Count 0x0013 100 100 020 Pre-fail Always -
0
12 Power_Cycle_Count 0x0032 100 100 000 Old_age Always -
284
192 Power-Off_Retract_Count 0x0032 100 100 000 Old_age Always -
78
193 Load_Cycle_Count 0x0032 100 100 000 Old_age Always -
1216
194 Temperature_Celsius 0x0022 100 100 000 Old_age Always -
38 (Lifetime Min/Max 21/46)
195 Hardware_ECC_Recovered 0x001a 100 100 000 Old_age Always -
247
196 Reallocated_Event_Count 0x0032 100 100 000 Old_age Always -
457965568
197 Current_Pending_Sector 0x0012 100 100 000 Old_age Always -
0
198 Offline_Uncorrectable 0x0010 100 100 000 Old_age Offline -
0
199 UDMA_CRC_Error_Count 0x003e 200 253 000 Old_age Always -
0
200 Multi_Zone_Error_Rate 0x000f 100 100 060 Pre-fail Always -
10448
203 Run_Out_Cancel 0x0002 100 100 000 Old_age Always -
1529011503750
240 Head_Flying_Hours 0x003e 200 200 000 Old_age Always -
0
-andy
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