linux-kernel - FYI: strange libata EH lines in dmesg once after every bootup

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Message-ID: <20060714230801.GA6645@zeus.uziel.local>
Date:	Sat, 15 Jul 2006 01:08:01 +0200
From:	Christian Trefzer <ctrefzer@....de>
To:	lkml <linux-kernel@...r.kernel.org>
Subject: FYI: strange libata EH lines in dmesg once after every bootup


Hi,

the following happens every time after bootup, tested with freshly built
2.6.18-rc1-mm2: 


DMA write timed out
ata1: EH complete
SCSI device sda: 234493056 512-byte hdwr sectors (120060 MB)
sda: Write Protect is off
sda: Mode Sense: 00 3a 00 00
SCSI device sda: drive cache: write back
ata1.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x0
ata1.00: tag 0 cmd 0xb0 Emask 0x1 stat 0x51 err 0x4 (device error)
ata1: EH complete
ata1.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x0
ata1.00: tag 0 cmd 0xb0 Emask 0x1 stat 0x51 err 0x4 (device error)
ata1: EH complete
ata1.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x0
ata1.00: tag 0 cmd 0xb0 Emask 0x1 stat 0x51 err 0x4 (device error)
ata1: EH complete
ata1.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x0
ata1.00: tag 0 cmd 0xb0 Emask 0x1 stat 0x51 err 0x4 (device error)
ata1: EH complete
ata1.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x0
ata1.00: tag 0 cmd 0xb0 Emask 0x1 stat 0x51 err 0x4 (device error)
ata1: EH complete
ata1.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x0
ata1.00: tag 0 cmd 0xb0 Emask 0x1 stat 0x51 err 0x4 (device error)
ata1: EH complete
ata2: EH complete
SCSI device sda: 234493056 512-byte hdwr sectors (120060 MB)
sda: Write Protect is off
sda: Mode Sense: 00 3a 00 00
SCSI device sda: drive cache: write back
SCSI device sda: 234493056 512-byte hdwr sectors (120060 MB)
sda: Write Protect is off
sda: Mode Sense: 00 3a 00 00
SCSI device sda: drive cache: write back
ata2.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x0
ata2.00: tag 0 cmd 0xb0 Emask 0x1 stat 0x51 err 0x4 (device error)
ata2: EH complete
ata2.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x0
ata2.00: tag 0 cmd 0xb0 Emask 0x1 stat 0x51 err 0x4 (device error)
ata2: EH complete
ata2.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x0
ata2.00: tag 0 cmd 0xb0 Emask 0x1 stat 0x51 err 0x4 (device error)
ata2: EH complete
ata2.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x0
ata2.00: tag 0 cmd 0xb0 Emask 0x1 stat 0x51 err 0x4 (device error)
ata2: EH complete
ata2.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x0
ata2.00: tag 0 cmd 0xb0 Emask 0x1 stat 0x51 err 0x4 (device error)
ata2: EH complete
ata2.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x0
ata2.00: tag 0 cmd 0xb0 Emask 0x1 stat 0x51 err 0x4 (device error)
ata2: EH complete
SCSI device sdb: 234493056 512-byte hdwr sectors (120060 MB)
sdb: Write Protect is off
sdb: Mode Sense: 00 3a 00 00
SCSI device sdb: drive cache: write back
SCSI device sdb: 234493056 512-byte hdwr sectors (120060 MB)
sdb: Write Protect is off
sdb: Mode Sense: 00 3a 00 00
SCSI device sdb: drive cache: write back


Both disks are SAMSUNG SV1203N on a Promise 20269. What remained of
dmesg, hdparm -I and lspci attached.

Kind regards,
Chris

View attachment "lspci" of type "text/plain" (960 bytes)

View attachment "sda" of type "text/plain" (1908 bytes)

View attachment "sdb" of type "text/plain" (1908 bytes)

View attachment "dmesg" of type "text/plain" (15359 bytes)

Content of type "application/pgp-signature" skipped