From: Mike <michael_six@users.sourceforge.net>
To: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: B.Zolnierkiewicz@elka.pw.edu.pl, linux-ide@vger.kernel.org
Subject: Re: Kernel 2.6.18 and above
Date: Fri, 20 Apr 2007 02:55:52 -0700 [thread overview]
Message-ID: <46288E28.9010804@users.sourceforge.net> (raw)
In-Reply-To: <1177057830.17978.13.camel@localhost.localdomain>
Benjamin Herrenschmidt wrote:
> I'm CC'ing linux-ide... looks like the disk which you say is 20GB is
> misdetected by the IDE layer as being 2GB.
>
> Ok, so we have:
>
>
>>>> Probing IDE interface ide0...
>>>> hda: WDC WD800JB-00FMA0, ATA DISK drive
>>>> hdb: IC35L020AVVN07-0, ATA DISK drive
>>>> hda: Enabling Ultra DMA 4
>>>> hdb: Enabling Ultra DMA 4
>>>> ide0 at 0xf139c000-0xf139c007,0xf139c160 on irq 19
>>>> ide1: Found Apple KeyLargo ATA-3 controller, bus ID 0, irq 20
>>>> Probing IDE interface ide1...
>>>> hdc: PIONEER DVD-RW DVR-111D, ATAPI CD/DVD-ROM drive
>>>> hdd: IOMEGA ZIP 250 ATAPI, ATAPI FLOPPY drive
>>>> hdc: Enabling MultiWord DMA 2
>>>> ide1 at 0xf139e000-0xf139e007,0xf139e160 on irq 20
>>>> ide2: Found Apple KeyLargo ATA-3 controller, bus ID 1, irq 21
>>>> Probing IDE interface ide2...
>>>> Probing IDE interface ide2...
>>>> hda: max request size: 128KiB
>>>> hda: 156301488 sectors (80026 MB) w/8192KiB Cache, CHS=65535/16/63, UDMA(66)
>>>> hda: cache flushes supported
>>>> hda: [mac] hda1 hda2 hda3 hda4 hda5 hda6 hda7 hda8 hda9 hda10 hda11 hda12 hda13
>>>> hdb: max request size: 128KiB
>>>> hdb: 4128768 sectors (2113 MB) w/1863KiB Cache, CHS=4096/16/63, UDMA(66)
>>>>
>
> Here the drive claims to be 2GB, not 20GB (or is detected as such).
>
>
>> /dev/hdb
>> # type name length base (
>> size ) system
>> /dev/hdb1 Apple_partition_map Apple 63 @ 1 (
>> 31.5k) Partition map
>> /dev/hdb2 Apple_Driver43 Macintosh 56 @ 64 (
>> 28.0k) Driver 4.3
>> /dev/hdb3 Apple_Driver43 Macintosh 56 @ 120 (
>> 28.0k) Driver 4.3
>> /dev/hdb4 Apple_Driver_ATA Macintosh 56 @ 176 (
>> 28.0k) Unknown
>> /dev/hdb5 Apple_Driver_ATA Macintosh 56 @ 232 (
>> 28.0k) Unknown
>> /dev/hdb6 Apple_FWDriver Macintosh 512 @ 288
>> (256.0k) Unknown
>> /dev/hdb7 Apple_Driver_IOKit Macintosh 512 @ 800
>> (256.0k) Unknown
>> /dev/hdb8 Apple_Patches Patch Partition 512 @ 1312
>> (256.0k) Unknown
>> /dev/hdb9 Apple_Free 262144 @ 1824
>> (128.0M) Free space
>> /dev/hdb10 Apple_HFS Apple_HFS_Untitled_2 39924976 @
>> 263968 ( 19.0G) HFS
>> /dev/hdb11 Apple_Free 16 @ 40188944
>> ( 8.0k) Free space
>>
>> Block size=512, Number of Blocks=40188960
>> DeviceType=0x0, DeviceId=0x0
>> Drivers-
>> 1: @ 64 for 23, type=0x1
>> 2: @ 120 for 36, type=0xffff
>> 3: @ 176 for 21, type=0x701
>> 4: @ 232 for 34, type=0xf8ff
>>
>
> And here you can see that the partition map tries to use about 20GB...
> so there is a discrepancy between what the partition map says and what
> the IDE driver says. I suspect old kernel just ignores the later, while
> newer kernels enforce the limit which causes your problem.
>
> Bart, I'm a bit at lost as to why the device size would be misdetected,
> do you have an idea ? Might be worth getting a dump of the ID block...
> Mike, can you send us a dump of the binary file /proc/ide/hdb/identify ?
>
> Ben.
>
>
>
>
045a 1000 37c8 0010 0000 0000 003f 0000
0000 0000 2020 2020 2020 564e 5031 3130
4231 4732 5853 5941 0003 0e8f 0034 5641
314f 4147 3041 4943 3335 4c30 3230 4156
564e 3037 2d30 2020 2020 2020 2020 2020
2020 2020 2020 2020 2020 2020 2020 8010
0000 2f00 4000 0200 0200 0007 1000 0010
003f 0000 003f 0100 3c20 0265 0000 0007
0003 0078 0078 00f0 0078 0000 0000 0000
0000 0000 0000 001f 0000 0000 0000 0000
003c 0015 74eb 5bea 4000 7469 1802 4003
103f 0006 0000 0000 fffe 6d00 80fe 0000
0000 0000 0000 0000 0000 0000 0000 0000
0000 0000 0000 0000 0000 0000 0000 0000
0000 0000 0000 0000 0000 0000 0000 0000
0000 0000 0000 0000 0000 0000 0000 0000
0001 000b 0000 0000 0000 001b 0000 0000
4000 0000 0000 0000 0000 0000 0000 0000
0000 0000 0000 0000 0000 0000 8000 0000
534f 0000 0000 0000 0000 0000 0000 0000
0000 0000 0000 0000 0000 0000 0000 0000
0000 0000 0000 0000 0000 0000 0000 0000
0000 0000 0000 0000 0000 0000 0000 0000
0000 0000 0000 0000 0000 0000 0000 0000
0000 0000 0000 0000 0000 0000 0000 0000
0000 0000 0000 0000 0000 0000 0000 0000
0000 0000 0000 0000 0000 0000 0000 0000
0000 0000 0000 0000 0000 0000 0000 0000
0000 0000 0000 0000 0000 0000 0000 0000
0000 0000 0000 0000 0000 0000 0000 0000
0000 0000 0000 0000 0000 0000 0000 0000
0000 0000 0000 0000 0000 0000 0000 51a5
is this what you wanted? I ran cat /prob/ide/hdb/identify while booted
in the 2.6.17.14 kernel. I hope it's ok I anticipated that Ben would
want me to keep linux-ide in the loop, if I am wrong tell me and I will
no longer keep them in the CC
next prev parent reply other threads:[~2007-04-20 10:03 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <4626AEF7.9010804@users.sourceforge.net>
[not found] ` <1177022657.7286.3.camel@localhost.localdomain>
[not found] ` <462811D6.9000304@users.sourceforge.net>
[not found] ` <1177051098.17978.4.camel@localhost.localdomain>
[not found] ` <46286D36.5090609@users.sourceforge.net>
2007-04-20 8:30 ` Kernel 2.6.18 and above Benjamin Herrenschmidt
2007-04-20 9:55 ` Mike [this message]
2007-04-20 20:41 ` Bartlomiej Zolnierkiewicz
2007-04-21 0:15 ` Benjamin Herrenschmidt
2007-04-21 15:28 ` Mark Lord
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