[Pkg-sysvinit-devel] Bug#644572: Bug#644572: sysvinit: Spins disk up briefly from standby during poweroff

[Touko Korpela]

On Thu, Oct 06, 2011 at 09:57:05PM -0300, Henrique de Moraes Holschuh wrote:
> On Fri, 07 Oct 2011, Touko Korpela wrote:
> > I suspect that "-h" option that "halt" gets during poweroff is buggy and
> > shouldn't spin disks up that are already at sleep.
> 
> Nowadays we're supposed to trust the kernel to do it right, and your disk
> should spin up only if it has crap firmware (unlikely).  Unless you're using
> the deprecated "old ide" drivers (/dev/hd*), in which case all bets are off.
> 
> Please edit /etc/init.d/halt and make it not add "-h" to the halt invocation
> (but make sure to add "sync ; sleep 5" before the halt command just in
> case).  Does that fix the issue?

It doesn't make a difference. So maybe it's a kernel issue then.
Same happens with another laptop that has Hitachi HTS54502 disk, so this
issue is more common. This has a Seagate disk.

Here is some lines from kernel 3.0.0-1-amd64 (Debian 3.0.0-3) boot dmesg.

[    1.425212] Block layer SCSI generic (bsg) driver version 0.4 loaded
(major 253)
[    1.651042] SCSI subsystem initialized
[    1.681254] ahci 0000:00:11.0: AHCI 0001.0200 32 slots 1 ports 3 Gbps 0x1
impl SATA mode
[    1.690438] scsi0 : ahci
[    1.690697] ata1: SATA max UDMA/133 abar m1024 at 0xfeb4c000 port 0xfeb4c100
irq 19
[    2.196281] ata1: SATA link up 3.0 Gbps (SStatus 123 SControl 300)
[    2.504191] ata1.00: ATA-8: ST9500325AS, 0003SDM1, max UDMA/133
[    2.504199] ata1.00: 976773168 sectors, multi 16: LBA48 NCQ (depth 31/32)
[    2.506494] ata1.00: configured for UDMA/133
[    2.507008] scsi 0:0:0:0: Direct-Access     ATA      ST9500325AS
0003 PQ: 0 ANSI: 5
[    2.517044] scsi1 : usb-storage 2-2:1.0
[    2.518624] sd 0:0:0:0: [sda] 976773168 512-byte logical blocks: (500
GB/465 GiB)
[    2.518751] sd 0:0:0:0: [sda] Write Protect is off
[    2.518757] sd 0:0:0:0: [sda] Mode Sense: 00 3a 00 00
[    2.518810] sd 0:0:0:0: [sda] Write cache: enabled, read cache: enabled,
doesn't support DPO or FUA
[    2.548221]  sda: sda1 sda2 sda3 sda4
[    2.549024] sd 0:0:0:0: [sda] Attached SCSI disk
[    3.650505] scsi 1:0:0:0: Direct-Access     Multiple Card  Reader
1.00 PQ: 0 ANSI: 0
[    4.608143] sd 1:0:0:0: [sdb] Attached SCSI removable disk