Administrace komentářů

Dobrý den, již delší dobu mě trápí samovolné vypínání DMA na notebooku. Při větší zátěži (většinou) se desktop na cca 1 vterinu "zasekne" a do dojde ke změně režimu IDE na nižší režim (nejprve z DMA100 na DMA 66, později níž až k PIO).

Nejprve jsem předpokládal chybu disku, ale problem se projevuje na jiném hdd. Zkoušel jsem i různá jadra 2.6.26 až 30.

Napadá mě chyba řadiče nebo nějaká chyba v jádru.Měl by jste někdo nápad,jak chybu opravit, popř. alespoň zjistit co problém zpusobuje?

hdparm -d1 /dev/sda vraci:

/dev/sda:
 setting using_dma to 1 (on)
 HDIO_SET_DMA failed: Inappropriate ioctl for device
 HDIO_GET_DMA failed: Inappropriate ioctl for device

dmesg dává následující popis:

 1478.367167] ata1.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x6
[ 1478.367179] ata1.00: BMDMA stat 0x24
[ 1478.367193] ata1.00: cmd c8/00:00:bf:9e:28/00:00:00:00:00/e3 tag 0 dma 131072 in
[ 1478.367196]          res 51/84:00:be:9f:28/00:00:00:00:00/e3 Emask 0x10 (ATA bus error)
[ 1478.367204] ata1.00: status: { DRDY ERR }
[ 1478.367208] ata1.00: error: { ICRC ABRT }
[ 1478.367251] ata1: soft resetting link
[ 1478.545285] ata1.00: configured for UDMA/100
[ 1478.545315] ata1: EH complete
[ 1478.582917] ata1.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x6
[ 1478.582928] ata1.00: BMDMA stat 0x24
[ 1478.582942] ata1.00: cmd c8/00:00:bf:9e:28/00:00:00:00:00/e3 tag 0 dma 131072 in
[ 1478.582946]          res 51/84:00:be:9f:28/00:00:00:00:00/e3 Emask 0x10 (ATA bus error)
[ 1478.582953] ata1.00: status: { DRDY ERR }
[ 1478.582958] ata1.00: error: { ICRC ABRT }
[ 1478.583000] ata1: soft resetting link
[ 1478.760945] ata1.00: configured for UDMA/100
[ 1478.760974] ata1: EH complete
[ 1478.782129] ata1.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x6
[ 1478.782138] ata1.00: BMDMA stat 0x24
[ 1478.782152] ata1.00: cmd c8/00:00:bf:9e:28/00:00:00:00:00/e3 tag 0 dma 131072 in
[ 1478.782156]          res 51/84:00:be:9f:28/00:00:00:00:00/e3 Emask 0x10 (ATA bus error)
[ 1478.782163] ata1.00: status: { DRDY ERR }
[ 1478.782168] ata1.00: error: { ICRC ABRT }
[ 1478.782210] ata1: soft resetting link
[ 1478.960940] ata1.00: configured for UDMA/100
[ 1478.960968] ata1: EH complete
[ 1478.981357] ata1.00: limiting speed to UDMA/66:PIO4
[ 1478.981368] ata1.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x6
[ 1478.981375] ata1.00: BMDMA stat 0x24
[ 1478.981390] ata1.00: cmd c8/00:00:bf:9e:28/00:00:00:00:00/e3 tag 0 dma 131072 in
[ 1478.981393]          res 51/84:00:be:9f:28/00:00:00:00:00/e3 Emask 0x10 (ATA bus error)
[ 1478.981400] ata1.00: status: { DRDY ERR }
[ 1478.981405] ata1.00: error: { ICRC ABRT }
[ 1478.981447] ata1: soft resetting link
[ 1479.160948] ata1.00: configured for UDMA/66
[ 1479.160976] ata1: EH complete
[ 1479.194809] ata1.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x6
.....
[ 1479.594942] ata1.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x6
[ 1479.594949] ata1.00: BMDMA stat 0x24
[ 1479.594962] ata1.00: cmd ca/00:08:97:68:b8/00:00:00:00:00/e2 tag 0 dma 4096 out
[ 1479.594965]          res 51/84:00:9e:68:b8/00:00:00:00:00/e2 Emask 0x10 (ATA bus error)
[ 1479.594973] ata1.00: status: { DRDY ERR }
[ 1479.594977] ata1.00: error: { ICRC ABRT }
[ 1479.595019] ata1: soft resetting link
[ 1479.772929] ata1.00: configured for PIO4
[ 1479.772959] ata1: EH complete
[ 1479.779268] sd 0:0:0:0: [sda] 58605120 512-byte hardware sectors: (30.0 GB/27.9 GiB)
[ 1479.793172] sd 0:0:0:0: [sda] Write Protect is off
[ 1479.793183] sd 0:0:0:0: [sda] Mode Sense: 00 3a 00 00
[ 1479.837063] sd 0:0:0:0: [sda] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA
[ 1479.837155] sd 0:0:0:0: [sda] 58605120 512-byte hardware sectors: (30.0 GB/27.9 GiB)
[ 1479.837188] sd 0:0:0:0: [sda] Write Protect is off
[ 1479.837194] sd 0:0:0:0: [sda] Mode Sense: 00 3a 00 00
[ 1479.837243] sd 0:0:0:0: [sda] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA