[Bug 569680] [NEW] Hard disk write/read freezes for 10 seconds several times in session

[Pēteris Krišjānis]

Public bug reported:

After booting and loging in, computer freezes for 10 or so seconds and
dmesg has this. I think - but not sure - this wasn't a problem before
updates around beta2, but certainly it is regression from Karmic. I
tried to report this with ubuntu-bug, but Ubuntu claimed that newest
kernel isn't proper Ubuntu package. Therefore logs as requested follows.

General Hardware info: Athlon XP 1800+, 1 GB memory

This is snippet from dmesg:
[   81.816082] ata1.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x6 frozen
[   81.816093] ata1.00: failed command: WRITE DMA
[   81.816102] ata1.00: cmd ca/00:08:a0:f0:15/00:00:00:00:00/eb tag 0 dma 4096 out
[   81.816104]          res 40/00:00:00:00:00/00:00:00:00:00/40 Emask 0x4 (timeout)
[   81.816108] ata1.00: status: { DRDY }
[   81.816120] ata1: hard resetting link
[   82.136057] ata1: SATA link up 1.5 Gbps (SStatus 113 SControl 310)
[   82.160401] ata1.00: configured for UDMA/100
[   82.160411] ata1.00: device reported invalid CHS sector 0
[   82.160427] ata1: EH complete
[  140.820019] ata1: drained 32768 bytes to clear DRQ.
[  140.851302] ata1.00: exception Emask 0x0 SAct 0x0 SErr 0x80000 action 0x6 frozen
[  140.851312] ata1: SError: { 10B8B }
[  140.851317] ata1.00: failed command: READ DMA
[  140.851326] ata1.00: cmd c8/00:00:f8:0e:77/00:00:00:00:00/eb tag 0 dma 131072 in
[  140.851327]          res 40/00:00:00:4f:c2/00:00:00:00:00/00 Emask 0x4 (timeout)
[  140.851331] ata1.00: status: { DRDY }
[  140.851343] ata1: hard resetting link
[  141.168063] ata1: SATA link up 1.5 Gbps (SStatus 113 SControl 310)
[  141.192478] ata1.00: configured for UDMA/100
[  141.192488] ata1.00: device reported invalid CHS sector 0
[  141.192504] ata1: EH complete
[  172.326591] ata1.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x0
[  172.326600] ata1.00: BMDMA2 stat 0x8652001
[  172.326607] ata1.00: failed command: WRITE DMA
[  172.326616] ata1.00: cmd ca/00:20:58:ce:55/00:00:00:00:00/eb tag 0 dma 16384 out
[  172.326618]          res 51/04:20:58:ce:55/00:00:00:00:00/eb Emask 0x1 (device error)
[  172.326622] ata1.00: status: { DRDY ERR }
[  172.326625] ata1.00: error: { ABRT }
[  172.388500] ata1.00: configured for UDMA/100
[  172.388534] ata1: EH complete

** Affects: linux (Ubuntu)
     Importance: Undecided
         Status: New

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Hard disk write/read freezes for 10 seconds several times in session
https://bugs.launchpad.net/bugs/569680
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