On Friday, May 13, 2011, Michael Leun wrote: > On Thu, 12 May 2011 00:25:34 +0200 > "Rafael J. Wysocki" <rjw@xxxxxxx> wrote: > > > There seems to be a problem on my Acer box which is related to DIPM > > and switching the power source. Namely, when I detach the AC adapter > > from the machine, the disk (which is an Intel SSD) freezes for a > > while and something like this appears in dmesg: > [...] > > Since updating to 2.6.39-rc7 (from 2.6.38.x) I have similar problems > with two notebooks using Intel ICH: > > Acer PTZ1825 > 00:1f.2 SATA controller: Intel Corporation ICH9M/M-E SATA AHCI > Controller (rev 03) (prog-if 01 [AHCI 1.0]) Subsystem: Acer > Incorporated [ALI] Device 0300 Flags: bus master, 66MHz, medium devsel, > latency 0, IRQ 42 I/O ports at 30e8 [size=8] > I/O ports at 30fc [size=4] > I/O ports at 30e0 [size=8] > I/O ports at 30f8 [size=4] > I/O ports at 3020 [size=32] > Memory at d4504000 (32-bit, non-prefetchable) [size=2K] > Capabilities: [80] MSI: Enable+ Count=1/16 Maskable- 64bit- > Capabilities: [70] Power Management version 3 > Capabilities: [a8] SATA HBA v1.0 > Capabilities: [b0] PCI Advanced Features > Kernel driver in use: ahci > > > Dell Latitude E6510 > 00:1f.2 SATA controller: Intel Corporation 5 Series/3400 Series Chipset > 6 port SATA AHCI Cont roller (rev 05) (prog-if 01 [AHCI 1.0]) > Subsystem: Dell Device 040b > Flags: bus master, 66MHz, medium devsel, latency 0, IRQ 41 > I/O ports at 8090 [size=8] > I/O ports at 8080 [size=4] > I/O ports at 8070 [size=8] > I/O ports at 8060 [size=4] > I/O ports at 8020 [size=32] > Memory at e9640000 (32-bit, non-prefetchable) [size=2K] > Capabilities: [80] MSI: Enable+ Count=1/1 Maskable- 64bit- > Capabilities: [70] Power Management version 3 > Capabilities: [a8] SATA HBA v1.0 > Capabilities: [b0] PCI Advanced Features > Kernel driver in use: ahci > > Patch not tried yet (do not know / not looked into yet where to change > for this chipset). > > Seems to be a 2.6.39-rcX regression? Well, that very well may be the case. Can you verify that it didn't happen with 2.6.38 and earlier? Rafael -- To unsubscribe from this list: send the line "unsubscribe linux-ide" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
