Would it be possible for you to test the latest upstream kernel? Refer
to https://wiki.ubuntu.com/KernelMainlineBuilds . Please test the latest
v3.14 kernel[0].
If this bug is fixed in the mainline kernel, please add the following
tag 'kernel-fixed-upstream'.
If the mainline kernel does not fix
A bisect was performed in bug 1107150, but the bad commit was never
identified. After testing the mainline kernel, we can also perform a
bisect and may have better luck identifying the cause of this
regression.
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btw: do not bother looking at the ``nox2apic
rcutree.rcu_idle_gp_delay=1'' boot options. i added them lately trying
to overcome some nvidia-related problems. The problem here exists when
these options were not specified ...
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** Changed in: linux (Ubuntu)
Status: New = Confirmed
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https://bugs.launchpad.net/bugs/1290337
Title:
I/O slow down on 32-bit PAE systems
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