I haven't noticed the last time any issues. Also on testing this with
the kernel 3.16.0.9.10 the booting time is stable and nothing hangs
anymore. But the issue that the booting time in generic is slower than
some kernels before does still exist. But I have opened another report
for this:
Utopic is now updates to the 3.16 kernel. Before we continue the
bisect, can you apply the latest Utopic updates and confirm if this bug
still exists or not?
** Changed in: linux (Ubuntu)
Status: Confirmed = Incomplete
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** Tags added: latest-bios-1.40
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https://bugs.launchpad.net/bugs/1325819
Title:
I/O performance problems with kernel 3.15.x
Status in “linux” package in Ubuntu:
I started a kernel bisect between v3.13 final and v3.14-rc1. The kernel
bisect will require testing of about 7-10 test kernels.
I built the first test kernel, up to the following commit:
365c483f190fea03971b3eca8d68406f425777b5
The test kernel can be downloaded from:
365c483f190fea03971b3eca8d68406f425777b5 works fine but there is
something other very interesting: This kernel has an extreme performance
boost in booting time on my system. It boots now about 2-3 seconds
faster (~10-15%) compared to the working kernels. Normally I have
noticed within the last
Are you able to reproduce the bug easily? If so, we can test some
upstream kernels[0] to try and find the last good kernel and first bad
kernel. If we can find those two, I can perform a kernel bisect to
identify the specific commit that introduced the regression.
[0]
I have now tested some different versions to find the first problematic
version. On the last test I have booted multiple times with kernel
3.13.11.2-trusty and all was working fine. But on booting multiple times
with kernel 3.14-rc1-trusty I have always noticed this I/O issue.
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** Changed in: linux (Ubuntu)
Status: Incomplete = Confirmed
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https://bugs.launchpad.net/bugs/1325819
Title:
I/O performance problems with kernel 3.15.x
Status in
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