linux-kernel - Bad behaviour after hdparm -M 128

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [day] [month] [year] [list]

Date:	Wed, 6 Jun 2007 08:47:44 +0200
From:	Tino Keitel <tino.keitel@....de>
To:	linux-kernel@...r.kernel.org
Subject: Bad behaviour after hdparm -M  128

Hi,

I tried to enable acoustic management on my SATA drive, because
hdparm -I reported a recommended value of 128, and a current value
of 0 (off).

I did this:

$ sudo hdparm -M 128 /dev/sda
/dev/sda:
 setting acoustic management to 128
 HDIO_DRIVE_CMD:ACOUSTIC failed: Input/output error
 acoustic      = not supported

It apperently failed, no big deal.

However, I had these messages in the kernel log, and they don't look
really harmless to me:

ata3.01: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x0
ata3.01: cmd ef/42:80:00:00:00/00:00:00:00:00/50 tag 0 cdb 0x0 data 0 
         res 51/04:80:00:00:00/00:00:00:00:00/50 Emask 0x1 (device error)
ata3.01: configured for UDMA/133
ata3: EH complete
SCSI device sda: 156301488 512-byte hdwr sectors (80026 MB)
sda: Write Protect is off
sda: Mode Sense: 00 3a 00 00
SCSI device sda: write cache: enabled, read cache: enabled, doesn't support DPO or FUA

Is this expected behaviour?

I used kernel 2.6.21 with the libata PIIX SATA driver and a
Seagate ST98823AS drive.

Regards,
Tino
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/