I also have this issue with Jaunty (2.6.28-15-generic #52-Ubuntu SMP Wed Sep 9 10:49:34 UTC 2009 i686 GNU/Linux) on an IBM Thinkpad X31 with an 160GB Samsung disk:
from dmesg startup:
[ 4.087964] ata_piix 0000:00:1f.1: PCI INT A -> Link[LNKC] -> GSI 11 (level, low) -> IRQ 11 [ 4.088073] ata_piix 0000:00:1f.1: setting latency timer to 64 [ 4.088255] scsi0 : ata_piix [ 4.088697] scsi1 : ata_piix [ 4.091191] ata1: PATA max UDMA/100 cmd 0x1f0 ctl 0x3f6 bmdma 0x1860 irq 14 [ 4.091200] ata2: PATA max UDMA/100 cmd 0x170 ctl 0x376 bmdma 0x1868 irq 15 [ 4.254198] ata1.00: ATA-8: SAMSUNG HM160HC, LQ100-10, max UDMA/100 [ 4.254207] ata1.00: 312581808 sectors, multi 16: LBA48 [ 4.270188] ata1.00: configured for UDMA/100 [ 4.424334] scsi 0:0:0:0: Direct-Access ATA SAMSUNG HM160HC LQ10 PQ: 0 ANSI: 5 [ 4.424600] sd 0:0:0:0: [sda] 312581808 512-byte hardware sectors: (160 GB/149 GiB) [ 4.424647] sd 0:0:0:0: [sda] Write Protect is off [ 4.424655] sd 0:0:0:0: [sda] Mode Sense: 00 3a 00 00 [ 4.424727] sd 0:0:0:0: [sda] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA [ 4.424887] sd 0:0:0:0: [sda] 312581808 512-byte hardware sectors: (160 GB/149 GiB) [ 4.424929] sd 0:0:0:0: [sda] Write Protect is off [ 4.424936] sd 0:0:0:0: [sda] Mode Sense: 00 3a 00 00 [ 4.425006] sd 0:0:0:0: [sda] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA [ 4.425017] sda: sda1 sda2 sda3 < sda5 sda6 > [ 4.502612] sd 0:0:0:0: [sda] Attached SCSI disk
and now the problem:
[ 54.816078] ata1.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x6 frozen [ 54.816090] ata1.00: cmd c8/00:38:cf:88:16/00:00:00:00:00/e1 tag 0 dma 28672 in [ 54.816092] res 40/00:80:00:00:00/00:00:00:00:00/40 Emask 0x4 (timeout) [ 54.816096] ata1.00: status: { DRDY } [ 59.856041] ata1: link is slow to respond, please be patient (ready=0) [ 64.840127] ata1: device not ready (errno=-16), forcing hardreset [ 64.840137] ata1: soft resetting link [ 65.022284] ata1.00: configured for UDMA/100 [ 65.022301] ata1: EH complete [ 65.031178] sd 0:0:0:0: [sda] 312581808 512-byte hardware sectors: (160 GB/149 GiB)
I also have this issue with Jaunty (2.6.28-15-generic #52-Ubuntu SMP Wed Sep 9 10:49:34 UTC 2009 i686 GNU/Linux) on an IBM Thinkpad X31 with an 160GB Samsung disk:
from dmesg startup:
[ 4.087964] ata_piix 0000:00:1f.1: PCI INT A -> Link[LNKC] -> GSI 11 (level, low) -> IRQ 11
[ 4.088073] ata_piix 0000:00:1f.1: setting latency timer to 64
[ 4.088255] scsi0 : ata_piix
[ 4.088697] scsi1 : ata_piix
[ 4.091191] ata1: PATA max UDMA/100 cmd 0x1f0 ctl 0x3f6 bmdma 0x1860 irq 14
[ 4.091200] ata2: PATA max UDMA/100 cmd 0x170 ctl 0x376 bmdma 0x1868 irq 15
[ 4.254198] ata1.00: ATA-8: SAMSUNG HM160HC, LQ100-10, max UDMA/100
[ 4.254207] ata1.00: 312581808 sectors, multi 16: LBA48
[ 4.270188] ata1.00: configured for UDMA/100
[ 4.424334] scsi 0:0:0:0: Direct-Access ATA SAMSUNG HM160HC LQ10 PQ: 0 ANSI: 5
[ 4.424600] sd 0:0:0:0: [sda] 312581808 512-byte hardware sectors: (160 GB/149 GiB)
[ 4.424647] sd 0:0:0:0: [sda] Write Protect is off
[ 4.424655] sd 0:0:0:0: [sda] Mode Sense: 00 3a 00 00
[ 4.424727] sd 0:0:0:0: [sda] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA
[ 4.424887] sd 0:0:0:0: [sda] 312581808 512-byte hardware sectors: (160 GB/149 GiB)
[ 4.424929] sd 0:0:0:0: [sda] Write Protect is off
[ 4.424936] sd 0:0:0:0: [sda] Mode Sense: 00 3a 00 00
[ 4.425006] sd 0:0:0:0: [sda] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA
[ 4.425017] sda: sda1 sda2 sda3 < sda5 sda6 >
[ 4.502612] sd 0:0:0:0: [sda] Attached SCSI disk
and now the problem:
[ 54.816078] ata1.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x6 frozen cf:88:16/ 00:00:00: 00:00/e1 tag 0 dma 28672 in 00:00:00/ 00:00:00: 00:00/40 Emask 0x4 (timeout)
[ 54.816090] ata1.00: cmd c8/00:38:
[ 54.816092] res 40/00:80:
[ 54.816096] ata1.00: status: { DRDY }
[ 59.856041] ata1: link is slow to respond, please be patient (ready=0)
[ 64.840127] ata1: device not ready (errno=-16), forcing hardreset
[ 64.840137] ata1: soft resetting link
[ 65.022284] ata1.00: configured for UDMA/100
[ 65.022301] ata1: EH complete
[ 65.031178] sd 0:0:0:0: [sda] 312581808 512-byte hardware sectors: (160 GB/149 GiB)