*** This bug is a duplicate of bug 952556 ***
https://bugs.launchpad.net/bugs/952556
** This bug has been marked a duplicate of bug 952556
[Precise] [Hardware-killer] HD restarts every few seconds
** No longer affects: linux (Ubuntu)
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Tracking it through more files than I can recall, I found that /usr/lib
/pm-utils/power.d/95hdparm-apm calls /lib/hdparm/hdparm-functions which
includes the following lines:
if hdparm_is_on_battery; then
hdparm_set_option -B127
Changing -B127 to -B254 seems to prevent APM causing
Some further experimentation has revealed that the issue may be with the
drive Advanced Power Management function.
When operating on AC power, "hdparm -B /dev/sda" gives APM_level = 254
A few seconds after removing AC power, "hdparm -B /dev/sda" gives APM_level =
127
Running like this for a few
@VS:
I tried but that had no effect. Thanks for the suggestion.
I've tried running Fedora 17 (Beta) with kernel 3.3.3 - this works fine with no
issues.
That points to it being Ubuntu related as the issue is present in Ubuntu with
kernel 3.2.0-24 AND 3.4 mainline, but not present in Fedora 17 wit
I believe this might be related to what I'm seeing in bug 993507. Do the
errors go away if you manually run "echo max_performance | sudo tee
/sys/class/scsi_host/host*/link_power_management_policy" when on
battery?
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Bugs, whi
** Changed in: linux
Status: Unknown => Confirmed
** Changed in: linux
Importance: Unknown => High
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https://bugs.launchpad.net/bugs/984308
Title:
ATA failures when operating
@Colin,
Thanks for the suggestion - I actually tried this (along with "sudo
pm-powersave false" when running on battery) to no avail.
I also suspected a pm-utils script.
I also tried putting an copying the scripts from /usr/lib/pm-
utils/power.d to /etc/pm/power.d/ and running "chmod a-x" on all
@David, it would be useful to factor out all the pm-utils/power.d
scripts, so on AC power can you run:
sudo pm-powersave true
and see if the problem is triggered by this.
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** Changed in: linux (Ubuntu)
Status: Confirmed => Triaged
** Also affects: linux via
http://bugzilla.kernel.org/show_bug.cgi?id=43117
Importance: Unknown
Status: Unknown
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Upstream (kernel) issue number is 43117.
Please see https://bugzilla.kernel.org/show_bug.cgi?id=43117
Note: This is the first time I have reported a kernel bug and as such
there is a high likelihood that it is miscategorised or otherwise poorly
filed. Any advice or help would be appreciated.
** B
@Joseph:
Yes, I have tested with 3.4 rc3 and the issue persists.
I will try to open an upstream bug report shortly.
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https://bugs.launchpad.net/bugs/984308
Title:
ATA failures when oper
** Changed in: linux (Ubuntu)
Status: New => Confirmed
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https://bugs.launchpad.net/bugs/984308
Title:
ATA failures when operating on battery power in Ubuntu 12.04
To manage noti
So you've tested the latest v3.4 kernel[0] and it also has this bug? If
so, Would it be possible for you to open an upstream bug report at
bugzilla.kernel.org [1]? That will allow the upstream Developers to
examine the issue, and may provide a quicker resolution to the bug.
If you are comfortabl
** Description changed:
When operating on battery power (not AC), multiple ATA failures occur.
- This issue was not present in Ubuntu 11.10 but is obserable in Ubuntu 12.04
beta 2 and Xubuntu 12.04 beta 2. The issue also occurs in Ubuntu 12.04 daily
(17/04/2012) with latest updates (via apt).
Additionally - I have tried specifying libata.force=noncq kernel option
on boot to no effect.
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https://bugs.launchpad.net/bugs/984308
Title:
ATA failures when operating on battery power
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https://bugs.launchpad.net/bugs/984308
Title:
ATA failures when operating on battery power in Ubuntu 12.04
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