http://bugzilla.kernel.org/show_bug.cgi?id=14100
Summary: re-suspend on wakeup due to ata exceptions
Product: ACPI
Version: 2.5
Kernel Version: 2.6.30-1-amd64, 2.6.31-rc6-amd64
Platform: All
OS/Version: Linux
Tree: Mainline
Status: NEW
Severity: normal
Priority: P1
Component: Power-Sleep-Wake
AssignedTo: acpi_power-sleep-w...@kernel-bugs.osdl.org
ReportedBy: amyo...@gmail.com
Regression: Yes
This is the upstream propagation of Debian bug
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=544169
Sorry, I am not much into the kernel/C development, so cannot provide a
detailed analysis myself.
After I migrated my Lenovo X61 Tablet laptop running Debian Squeeze/testing
from latest 2.6.26 kernel (linux-image-2.6.26-2-amd64=2.6.26-17lenny2) to
2.6.30 kernel (linux-image-2.6.30-1-amd64=2.6.30-6), the wake-up process after
Suspend-To-Ram (by closing the lid) with about 1/2 (or more, though not always)
probability ends in re-Suspend.
That is: I open the lid, the laptop wakes up, the screen changes to text mode,
several error lines are printed, and in a second it goes STR again. Sometimes I
managed to log in to KDE before it resuspends. If, after resuspend, with the
lid open, I press the power button to wake it up again, it wakes up properly
and does not resuspend.
I managed to shot the error lines which are printed before the laptop suspends.
Each line contain some kind of timestamp; I am printing it for the first line
and changing it to xxxxx.xxxxxx for the next lines. If for some reason you need
the exact photo (instead of my retype which may contain mistypes), please
request it:
------------------------Error starts here------------------------
[18153.323052] e1000e 0000:00:19.0: pci_enable_pcie_error_reporting failed
0xfffffffb
[xxxxx.xxxxxx] ata1: exception Emask 0x10 SAct 0x0 SErr 0x0 action 0xf t4
[xxxxx.xxxxxx] ata1: irq_stat 0x00400040, connection status changed
[xxxxx.xxxxxx] CPU1: Temperature/speed normal
[xxxxx.xxxxxx] e1000e 0000:00:19.0: pci_enable_pcie_error_reporting failed
0xfffffffb
[xxxxx.xxxxxx] ata1: exception Emask 0x10 SAct 0x0 SErr 0x0 action 0x9 t4
[xxxxx.xxxxxx] ata1: irq_stat 0x00400040, connection status changed
[xxxxx.xxxxxx] e1000e 0000:00:19.0: pci_enable_pcie_error_reporting failed
0xfffffffb
[xxxxx.xxxxxx] ata1: exception Emask 0x10 SAct 0x0 SErr 0x0 action 0x9 t4
[xxxxx.xxxxxx] ata1: irq_stat 0x00400040, connection status changed
[xxxxx.xxxxxx] e1000e 0000:00:19.0: pci_enable_pcie_error_reporting failed
0xfffffffb
[xxxxx.xxxxxx] ata1: exception Emask 0x10 SAct 0x0 SErr 0x0 action 0x9 t4
[xxxxx.xxxxxx] ata1: irq_stat 0x00400040, connection status changed
[xxxxx.xxxxxx] e1000e 0000:00:19.0: pci_enable_pcie_error_reporting failed
0xfffffffb
[xxxxx.xxxxxx] ata1: exception Emask 0x10 SAct 0x0 SErr 0x0 action 0xf t4
[xxxxx.xxxxxx] ata1: irq_stat 0x00400040, connection status changed
[xxxxx.xxxxxx] CPU1: Temperature/speed normal
[xxxxx.xxxxxx] e1000e 0000:00:19.0: pci_enable_pcie_error_reporting failed
0xfffffffb
[xxxxx.xxxxxx] ata1: exception Emask 0x10 SAct 0x0 SErr 0x0 action 0x9 t4
[xxxxx.xxxxxx] ata1: irq_stat 0x00400040, connection status changed
[xxxxx.xxxxxx] e1000e 0000:00:19.0: pci_enable_pcie_error_reporting failed
0xfffffffb
[xxxxx.xxxxxx] ata1: exception Emask 0x10 SAct 0x0 SErr 0x0 action 0xf t4
[xxxxx.xxxxxx] ata1: irq_stat 0x00400040, connection status changed
------------------------ Error ends here ------------------------
The similar behaviour also occured with all the previous 2.6.30RC and 2.6.29
kernels; iirc it has not occured with 2.6.28 line, though I don't have any
2.6.28 packages to confirm. It NEVER occured for many months of using 2.6.26
line.
By additional request in bugs.debian.org, I tried the 2.6.31-rc6 kernel, with
the same (still resuspends) result.
Please request me whatever additional information/tests I may provide to you.
Thanks in advance.
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