Stijn Volckaert, so your hardware may be tracked, could you please file a new
report by executing the following in a terminal while booted into a Ubuntu
repository kernel (not a mainline one) via:
ubuntu-bug linux
For more on this, please read the official Ubuntu documentation:
Ubuntu Bug Contro
I reverted that same commit in my own kernel source and the problem is
back. This wasn't the root cause.
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Title:
B75 Chipset I/O Pro
This kernel has some other problems. it doesn't seem to contain the
graphics driver for my card and I can't reboot. However, over ssh I get:
stijn@rogue:~$ dd if=/dev/zero of=/home/stijn/test bs=1M count=1k
1024+0 records in
1024+0 records out
1073741824 bytes (1.1 GB) copied, 6.3337 s, 170 MB/s
The bisect identified the following commit:
commit 252c3d84ed398b090ac2dace46fc6faa6cfaea99
Author: RongQing.Li
Date: Thu Jan 12 22:33:46 2012 +
ipv6: release idev when ip6_neigh_lookup failed in icmp6_dst_alloc
I'm not sure if this is the real root cause. However, I built a
mainline
not fixed
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Title:
B75 Chipset I/O Problems
Status in “linux” package in Ubuntu:
Confirmed
Bug description:
I built a new syste
** Tags added: bios-outdated-f11
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Title:
B75 Chipset I/O Problems
Status in “linux” package in Ubuntu:
Confirmed
Bug description
I built the next test kernel, up to the following commit:
252c3d84ed398b090ac2dace46fc6faa6cfaea99
The test kernel can be downloaded from:
http://kernel.ubuntu.com/~jsalisbury/lp1107150
Can you test that kernel and report back if it has the bug or not. I
will build the next test kernel based on y
not fixed
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Title:
B75 Chipset I/O Problems
Status in “linux” package in Ubuntu:
Confirmed
Bug description:
I built a new syste
I built the next test kernel, up to the following commit:
412662d204eca981458156fd64d9d5f3b533d7b6
The test kernel can be downloaded from:
http://kernel.ubuntu.com/~jsalisbury/lp1107150
Can you test that kernel and report back if it has the bug or not. I
will build the next test kernel based on y
still broken
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Title:
B75 Chipset I/O Problems
Status in “linux” package in Ubuntu:
Confirmed
Bug description:
I built a new sy
I built the next test kernel, up to the following commit:
1886e5d2c694e7fb59434c717e704e7fd8475d2e
The test kernel can be downloaded from:
http://kernel.ubuntu.com/~jsalisbury/lp1107150
Can you test that kernel and report back if it has the bug or not. I
will build the next test kernel based on y
just tested. The x86 kernel still has the bug.
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Title:
B75 Chipset I/O Problems
Status in “linux” package in Ubuntu:
Confirmed
B
I skipped that commit since the x86 kernel would not build.
I built the next test kernel, up to the following commit:
747465ef7a082033e086dedc8189febfda43b015
The test kernel can be downloaded from:
http://kernel.ubuntu.com/~jsalisbury/lp1107150
Can you test that kernel and report back if it has
Yes, as Stjin says, the provided URL doesn't contain an x86 kernel.
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Title:
B75 Chipset I/O Problems
Status in “linux” package in
Great to finally see this bug being worked on... I found a bunch of
similar bug reports that were finally closed (and supposedly solved)
because the original bug reporter ended up installing a 64-bit kernel
instead.
Here's what I found out so far:
* This bug only affects writing to block devices.
I built the next test kernel, up to the following commit:
010e646ba2fdfc558048a97da746381c35836280
The test kernel can be downloaded from:
http://kernel.ubuntu.com/~jsalisbury/lp1107150
Can you test that kernel and report back if it has the bug or not. I
will build the next test kernel based on y
That kernel doesn't have the bug.
No significant difference between the 8 GB vs 16 GB case. On my machine
with kernels that experience the bug, reading package lists can go into
the double digits on kernels that experience the bug.
# uname -a
Linux mediaserver 3.2.0-030200-generic #201311141219 S
Thanks for the feedback, everyone. I restarted the kernel bisect.
I built the next test kernel, up to the following commit:
7c9c684160bc2c6668abbd2701b440e18bb9ef35
The test kernel can be downloaded from:
http://kernel.ubuntu.com/~jsalisbury/lp1107150
Can you test that kernel and report back if
@jsalisbury,
I can verify both that the i386 kernels at the referenced PPA are PAE
enabled and that Linux kernel 3.12.0 still exhibits the bug.
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@jsalisbury,
The reference you give does not seem to have PAE kernels; at least there
are no packages with -pae in the name. Did packages got unified
32-bit/PAE/64-bit with 3.12?
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@Michisteiner,
Can you confirm the issue also happens in the final 3.12 version:
http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.12-saucy/
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FYI: the same problem seems also still present in Saucy / kernel
3.11.0-12. Without lowering considerably the RAM at boot-time (e.g.,
12GB instead of built-in 16GB) I/O write performance is horrible (and
even with 12GB it does not seem right and deteriorates over time ...)
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The problem is still an issue on i686 PAE kernel in raring.
Got a Lenovo W520 Laptop with 24GiB of RAM. "apt-get update" takes several
minutes.
However I found a workaround as alternative to removing the memory physically.
Add "mem=0x2" kernel boot parameter in /etc/default/grub in run
up
** Changed in: linux (Ubuntu)
Status: Incomplete => Confirmed
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Title:
B75 Chipset I/O Problems
Status in “linux” package in
I was having the problem originally described: very slow 'reading
package lists' in 'apt-get update'
Using 32 bit kernel 3.5.0-39-generic on latest thinkpad X230 with 16 GB
RAM. Samsung 840 pro.
Either of two things made the problem go away:
- reduce RAM to 8 GB
- downgrade to kernel 3.2.0-52
At this point it would be best to test v3.11-rc2 instead of v3.10-rc6:
http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.11-rc2-saucy/
** Changed in: linux (Ubuntu)
Status: Confirmed => Incomplete
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