From: "Petr Vandrovec" <VANDROVE@vc.cvut.cz>
To: Jeffrey Baker <jwbaker@acm.org>
Cc: linux-kernel@vger.kernel.org
Subject: Re: Different geometry settings for identical drives
Date: Sat, 31 May 2003 01:20:45 +0200 [thread overview]
Message-ID: <306584240A9@vcnet.vc.cvut.cz> (raw)
On 30 May 03 at 15:46, Jeffrey Baker wrote:
> hda: host protected area => 1
> hda: setmax LBA 234441648, native 234375000
> hda: 234375000 sectors (120000 MB) w/8192KiB Cache, CHS=232514/16/63, UDMA(100)
> hdc: attached ide-disk driver.
> hdc: host protected area => 1
> hdc: setmax LBA 234441648, native 234375000
> hdc: 234375000 sectors (120000 MB) w/8192KiB Cache, CHS=232514/16/63, UDMA(100)
> hdd: attached ide-cdrom driver.
> hdd: ATAPI 24X CD-ROM drive, 128kB Cache, UDMA(33)
>
> The result is that hda works fine but hdc doesn't. When I try to mke2fs
> on the latter I see:
>
> hdc: dma_intr: status=0x51 { DriveReady SeekComplete Error }
> hdc: dma_intr: error=0x10 { SectorIdNotFound }, LBAsect=234441583, sector=232343808
>
> You can see that LBAsect (234441583) is higher than the "native" sectors
> quoted by the kernel (234375000, difference 66583 sectors). Why are
> these two disks being addressed differently?
As far as I can tell, it has nothing to do with disk geometry.
Someone just cut couple of sectors at the end from disk, you compiled
your kernel without CONFIG_IDEDISK_STROKE, but still kernel for some
reason reports block size as if idedisk_set_max_address() was invoked.
I do not see how this could happen with 2.4.21-rc3... Can you recheck
that you are using 2.4.21-rc3 without any additional patches?
Petr Vandrovec
vandrove@vc.cvut.cz
next reply other threads:[~2003-05-30 23:07 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-05-30 23:20 Petr Vandrovec [this message]
2003-05-30 23:38 ` Different geometry settings for identical drives Jeffrey W. Baker
-- strict thread matches above, loose matches on Subject: below --
2003-05-31 0:19 Petr Vandrovec
2003-06-02 18:13 ` Jeffrey W. Baker
2003-05-30 22:46 Jeffrey Baker
2003-05-30 23:50 ` Andries Brouwer
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