Message-ID: <4B76D3E7.6000904@forouher.de>
Date:	Sat, 13 Feb 2010 17:31:35 +0100
From:	Dariush Forouher <dariush@...ouher.de>
To:	linux-kernel@...r.kernel.org
Subject: ACPI/ata regression with hotplugging the dvd drive

Hi,

since at least 2.6.32-rc6 inserting the dvd drive into my laptop at runtime
doesn't work anymore.

Usually (e.g. with 2.6.32) the kernel would print something like the following:

ACPI: \_SB_.PCI0.IDE1.PRI_.MAST - docking
ata4: exception Emask 0x10 SAct 0x0 SErr 0x0 action 0xe frozen
ata4: ACPI event
ata4: soft resetting link
ata4.00: ATAPI: TSSTcorp DVD+/-RW TS-L632H, D200, max UDMA/33
ata4.00: configured for UDMA/33
ata4: EH complete
scsi 3:0:0:0: CD-ROM            TSSTcorp DVD+-RW TS-L632H D200 PQ: 0 ANSI: 5
sr0: scsi3-mmc drive: 6x/24x writer cd/rw xa/form2 cdda tray
Uniform CD-ROM driver Revision: 3.20
sr 3:0:0:0: Attached scsi CD-ROM sr0
sr 3:0:0:0: Attached scsi generic sg1 type 5

And then udev would go on and create the appropriate dev nodes etc.

But with current 2.6.33-rc's the freshly connected drive isn't recognized anymore.
The kernel doesn't give out any related messages and udev doesn't do anything either.

If I boot with the drive already placed in the bay, then it's recognized correctly
during start up.

Due to the total lack of kernel messages I'm kind of wondering if maybe some new
config option concerning hotplug or ACPI has been introduced between 2.6.32 and 2.6.33
which I simply forgot to enable. A diff between the old/new kernel configs doesn't
show anything suspicious, though.

The Laptop is a Dell Latitude D630.

Any ideas?

regards
Dariush

$ lspci
00:00.0 Host bridge: Intel Corporation Mobile PM965/GM965/GL960 Memory Controller Hub (rev 0c)
00:02.0 VGA compatible controller: Intel Corporation Mobile GM965/GL960 Integrated Graphics Controller (rev 0c)
00:02.1 Display controller: Intel Corporation Mobile GM965/GL960 Integrated Graphics Controller (rev 0c)
00:1a.0 USB Controller: Intel Corporation 82801H (ICH8 Family) USB UHCI Controller #4 (rev 02)
00:1a.1 USB Controller: Intel Corporation 82801H (ICH8 Family) USB UHCI Controller #5 (rev 02)
00:1a.7 USB Controller: Intel Corporation 82801H (ICH8 Family) USB2 EHCI Controller #2 (rev 02)
00:1b.0 Audio device: Intel Corporation 82801H (ICH8 Family) HD Audio Controller (rev 02)
00:1c.0 PCI bridge: Intel Corporation 82801H (ICH8 Family) PCI Express Port 1 (rev 02)
00:1c.1 PCI bridge: Intel Corporation 82801H (ICH8 Family) PCI Express Port 2 (rev 02)
00:1c.5 PCI bridge: Intel Corporation 82801H (ICH8 Family) PCI Express Port 6 (rev 02)
00:1d.0 USB Controller: Intel Corporation 82801H (ICH8 Family) USB UHCI Controller #1 (rev 02)
00:1d.1 USB Controller: Intel Corporation 82801H (ICH8 Family) USB UHCI Controller #2 (rev 02)
00:1d.2 USB Controller: Intel Corporation 82801H (ICH8 Family) USB UHCI Controller #3 (rev 02)
00:1d.7 USB Controller: Intel Corporation 82801H (ICH8 Family) USB2 EHCI Controller #1 (rev 02)
00:1e.0 PCI bridge: Intel Corporation 82801 Mobile PCI Bridge (rev f2)
00:1f.0 ISA bridge: Intel Corporation 82801HEM (ICH8M) LPC Interface Controller (rev 02)
00:1f.1 IDE interface: Intel Corporation 82801HBM/HEM (ICH8M/ICH8M-E) IDE Controller (rev 02)
00:1f.2 SATA controller: Intel Corporation 82801HBM/HEM (ICH8M/ICH8M-E) SATA AHCI Controller (rev 02)
00:1f.3 SMBus: Intel Corporation 82801H (ICH8 Family) SMBus Controller (rev 02)
09:00.0 Ethernet controller: Broadcom Corporation NetXtreme BCM5755M Gigabit Ethernet PCI Express (rev 02)
0c:00.0 Network controller: Intel Corporation PRO/Wireless 4965 AG or AGN [Kedron] Network Connection (rev 61)


View attachment "dmesg-32.log" of type "text/x-log" (55737 bytes)

View attachment "dmesg-33.log" of type "text/x-log" (53234 bytes)

View attachment "config-2.6.33-rc7" of type "text/plain" (57724 bytes)

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