Running Linux buzz 2.6.37-11-generic #25-Ubuntu SMP Tue Dec 21 23:42:56 UTC
2010 x86_64 GNU/Linux (latest natty kernel at the time of writing)
pm-utils:
Installed: 1.4.1-4
After unplugging the AC the pm-suspend log gets
"""
/usr/lib/pm-utils/power.d/readahead true: success.
Running hook /usr/lib/pm-utils/power.d/sata_alpm true:
Setting SATA APLM on host2 to min_power...Done.
Setting SATA APLM on host3 to min_power...Done.
Setting SATA APLM on host4 to min_power...Done.
Setting SATA APLM on host5 to min_power...Done.
"""
And subsequent usage of the system is rather hard. HDD led stays on for
prolonged periods of time, dmesg hangs for some seconds (i believe binary is
being read from disk), then the following can be found in the output:
"""
[13870.046027] ata3.00: exception Emask 0x0 SAct 0x0 SErr 0x150000 action 0x6
frozen
[13870.046044] ata3: SError: { PHYRdyChg CommWake Dispar }
[13870.046052] ata3.00: failed command: SET FEATURES
[13870.046070] ata3.00: cmd ef/05:fe:00:00:00/00:00:00:00:00/40 tag 0
[13870.046073] res 40/00:ff:00:00:00/00:00:00:00:00/40 Emask 0x4
(timeout)
[13870.046081] ata3.00: status: { DRDY }
[13870.046094] ata3: hard resetting link
[13870.390116] ata3: SATA link up 1.5 Gbps (SStatus 113 SControl 300)
[13870.693978] ata3.00: configured for UDMA/133
[13870.694151] ata3: EH complete
"""
I have disabled the aplm control by by placing
"""
#!/bin/sh
export SATA_ALPM_ENABLE=false
"""
to /etc/pm/config.d/00-no-sata-alpm but that is just a workaround which the
users will not be really happy with if it does not work out-of-the-box.
--
You received this bug notification because you are a member of Ubuntu
Bugs, which is subscribed to Ubuntu.
https://bugs.launchpad.net/bugs/539467
Title:
SATA link power management causes disk errors and corruption
--
ubuntu-bugs mailing list
[email protected]
https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
