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From: "Sebastian Kärgel" <mailing@wodkahexe.de>
To: linux-kernel@vger.kernel.org
Subject: 2.6.{14,15-rc4} harddrive cache not detected
Date: Thu, 8 Dec 2005 19:44:08 +0100	[thread overview]
Message-ID: <20051208194408.77e17f64.mailing@wodkahexe.de> (raw)

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.

Thanks for your help,
Sebastian

             reply	other threads:[~2005-12-08 18:43 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2005-12-08 18:44 Sebastian Kärgel [this message]
2005-12-08 19:05 ` Bartlomiej Zolnierkiewicz
2005-12-08 19:23   ` Sebastian Kärgel
2005-12-08 20:12     ` Bartlomiej Zolnierkiewicz
2005-12-08 19:38 ` Alan Cox

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