Hello list,
Forgot to CC: linux-ide when writing this.
Please put me on CC when replying since I am not subscribed to the list.
Kind regards,
Michael
Begin forwarded message:
From: Michael Guntsche <mike@xxxxxxxxxxxx>
Date: October 27, 2008 11:21:58 GMT+01:00
To: tj@xxxxxxxxxx
Subject: Re: [PATCH #upstream-fixes 1/4] libata: fix device
iteration bugs
Hello,
I just browsed through the linux-ide archives and found this patch.
I am
wondering if this also helps with a problem I am facing on one of my
router
boxes since a few kernel versions.
I have an ancient router box with a "Intel Corporation 82371SB
PIIX3 IDE
[Natoma/Triton II]" controller. I switched to the new libata code a
long
time ago using the ata_piix driver. I have one harddisk and a CD-
burner i
not use very often. The Harddisk is on Primary master the burner on
secondary master. with at least the last two kernel versions, I see
this
during bootup
ata_piix 0000:00:07.1: version 2.12
scsi0 : ata_piix
scsi1 : ata_piix
ata1: PATA max MWDMA2 cmd 0x1f0 ctl 0x3f6 bmdma 0xe800 irq 14
ata2: PATA max MWDMA2 cmd 0x170 ctl 0x376 bmdma 0xe808 irq 15
ata1.00: ATA-5: IC35L040AVER07-0, ER4OA45A, max UDMA/100
ata1.00: 66055248 sectors, multi 16: LBA
ata1.00: configured for MWDMA2
ata2.01: failed to IDENTIFY (I/O error, err_mask=0x1)
ata2.01: failed to IDENTIFY (I/O error, err_mask=0x1)
ata2.01: failed to IDENTIFY (I/O error, err_mask=0x1)
ata2.00: ATAPI: SAMSUNG CD-R/RW SW-408B, M300, max MWDMA2
As you can see for some reason ata2.01 (secondary slave??) gets probed
during startup although there is nothing attached to it. It is tried
three
times with a 5 seconds pause in between. I did not notice this in
the past
since a do not reboot that machine very often.
For testing purposes I just recently did this a few times in a row and
noticed this. It is not a biggie since harddisk and burner are
working but
nevertheless it wasn't happening with older kernel versions so I
though you
should know.
Kind regards,
Michael
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