Summary: linux-image-2.6.38-2-686 (Debian): Horrible Time Skew,
Eventual Near-zero Responsiveness
Kernel Version: 2.6.39-rc6
Created an attachment (id=59292)
Debian bug tracker log mailbox for #626427
This is initially basically a forward of Debian bug #626427 whose log can be
(Also attached as plaintext mailbox.)
The braille display is away for now, but it still managed to freeze after a
while longer without BRLTTY running. This is using 2.6.39 RC6.
In summary, the system will slow right down after an unspecified time, but more
frequently with BRLTTY running, it seems. Touching a backspace at an empty
shell line will result in a continuous beeping from the system speaker without
pause, but dnscache still serves data, even if no process or thread will start.
It will require a hard reset to make the system be usable again. The other
important manifestation is horrible clock drift. It looks like a regression
from 2.6.32 in the acpi_pm clocksource driver. The clocksource selected
automatically was tsc, though, after the kernel upgrade; it was acpi_pm before
then in 2.6.32, giving 0.13s drift, which I suppose is acceptable on my
hardware. Now it's somewhere like 500s behind at every update on tsc, and less
drastic but unusable back-and-forth with acpi_pm.
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