Messages in this thread | | | Date | Thu, 8 Dec 2005 20:05:37 +0100 | From | Bartlomiej Zolnierkiewicz <> | Subject | Re: 2.6.{14,15-rc4} harddrive cache not detected |
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On 12/8/05, Sebastian Kärgel <mailing@wodkahexe.de> wrote: > Hello, > > after installing a new harddrive, the kernel does no longer detect the > harddrives cache. > > Old one: > ide0: BM-DMA at 0x1100-0x1107, BIOS settings: hda:DMA, hdb:pio > hda: ST94019A, ATA DISK drive > hda: 78140160 sectors (40007 MB) w/2048KiB Cache, CHS=16383/255/63, UDMA > (33) > > New one: > ide0: BM-DMA at 0x1100-0x1107, BIOS settings: hda:DMA, hdb:pio > hda: TOSHIBA MK4025GAS, ATA DISK drive > hda: 78140160 sectors (40007 MB), CHS=65535/16/63, UDMA(33) > > Note, that there is nothing printed about the cache size. > According to the manufactor the new harddrive should have 8mb cache. > /proc/ide/ide0/hda/cache also show "0" > > hdparm gives the following: > ... > BuffType=unknown, BuffSize=0kB > ... > > I verified this problem with 2.6.14 and 2.6.15-rc4.
I think that I've seen before some other Toshiba disks that incorrectly report cache size.
Could you send /proc/ide/hda/identify?
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