I've remarked that the change to udev rules proposed as a workaround
does not work, since attribute power/async is not even present under the
/sys tree.
My output for udevinfo for one of my HDDs :
administrateur@pcathlon64:~$ sudo udevadm info -a -p /sys/block/sda
[sudo] password for administrateur:
Udevadm info starts with the device specified by the devpath and then
walks up the chain of parent devices. It prints for every device
found, all possible attributes in the udev rules key format.
A rule to match, can be composed by the attributes of the device
and the attributes from one single parent device.
looking at device
'/devices/pci0000:00/0000:00:05.0/ata1/host0/target0:0:0/0:0:0:0/block/sda':
KERNEL=="sda"
SUBSYSTEM=="block"
DRIVER==""
ATTR{ro}=="0"
ATTR{size}=="1953525168"
ATTR{stat}==" 43323 186686 3049670 698632 4428 7667 293952
81904 0 144364 780504"
ATTR{range}=="16"
ATTR{discard_alignment}=="0"
ATTR{events}==""
ATTR{ext_range}=="256"
ATTR{events_poll_msecs}=="-1"
ATTR{alignment_offset}=="0"
ATTR{inflight}==" 0 0"
ATTR{removable}=="0"
ATTR{capability}=="50"
ATTR{events_async}==""
looking at parent device
'/devices/pci0000:00/0000:00:05.0/ata1/host0/target0:0:0/0:0:0:0':
KERNELS=="0:0:0:0"
SUBSYSTEMS=="scsi"
DRIVERS=="sd"
ATTRS{rev}=="05.0"
ATTRS{type}=="0"
ATTRS{scsi_level}=="6"
ATTRS{model}=="WDC WD1002FAEX-0"
ATTRS{state}=="running"
ATTRS{queue_type}=="simple"
ATTRS{iodone_cnt}=="0xbfa2"
ATTRS{iorequest_cnt}=="0xc6b7"
ATTRS{queue_ramp_up_period}=="120000"
ATTRS{timeout}=="30"
ATTRS{evt_media_change}=="0"
ATTRS{ioerr_cnt}=="0x12"
ATTRS{queue_depth}=="31"
ATTRS{vendor}=="ATA "
ATTRS{device_blocked}=="0"
ATTRS{iocounterbits}=="32"
looking at parent device
'/devices/pci0000:00/0000:00:05.0/ata1/host0/target0:0:0':
KERNELS=="target0:0:0"
SUBSYSTEMS=="scsi"
DRIVERS==""
looking at parent device '/devices/pci0000:00/0000:00:05.0/ata1/host0':
KERNELS=="host0"
SUBSYSTEMS=="scsi"
DRIVERS==""
looking at parent device '/devices/pci0000:00/0000:00:05.0/ata1':
KERNELS=="ata1"
SUBSYSTEMS==""
DRIVERS==""
looking at parent device '/devices/pci0000:00/0000:00:05.0':
KERNELS=="0000:00:05.0"
SUBSYSTEMS=="pci"
DRIVERS=="sata_nv"
ATTRS{irq}=="21"
ATTRS{subsystem_vendor}=="0x1043"
ATTRS{broken_parity_status}=="0"
ATTRS{class}=="0x010185"
ATTRS{consistent_dma_mask_bits}=="32"
ATTRS{dma_mask_bits}=="32"
ATTRS{local_cpus}=="00000000,00000000,00000000,00000000,00000000,00000000,00000000,0000000f"
ATTRS{device}=="0x037f"
ATTRS{enable}=="1"
ATTRS{msi_bus}==""
ATTRS{local_cpulist}=="0-3"
ATTRS{vendor}=="0x10de"
ATTRS{subsystem_device}=="0x8239"
ATTRS{numa_node}=="0"
ATTRS{d3cold_allowed}=="1"
looking at parent device '/devices/pci0000:00':
KERNELS=="pci0000:00"
SUBSYSTEMS==""
DRIVERS==""
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https://bugs.launchpad.net/bugs/1181878
Title:
Driver for hdd Western Digital Caviar Black 500 GB / 1 TB prevent
suspend
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1181878/+subscriptions
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