I compiled kernels with the patch for u16.04 and u18.04, seems to be working
for me:
https://t12.catchmedia.com/kernel_adaptec/
No warranties, use on your own risk.
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This happened because guest used lots of memory on NUMA machine. The KSM
might merge similar memory pages of different VMs, sitting on different
NUMA memory regions, causing the affected processes to crawl.
Disabled KSM merge_across_nodes:
echo 2 > /sys/kernel/mm/ksm/run && sleep 300 && cat
The guest used lots of memory on NUMA machine. Turned out KSM merged
some of the processes pages causing the particular processes to crawl.
Disabled KSM merge_across_nodes and it solved the problem:
echo 2 > /sys/kernel/mm/ksm/run && sleep 300 && cat
/sys/kernel/mm/ksm/pages_shared
echo 0 >
I am seeing this bug on a ubuntu 16.04 box running on proxmox 5.1.
Running 4.4.0-72-generic x86_64 guest (linux-image-4.4.0-72-generic).
Under heavy I/O sometimes the guest get stuck for couple of seconds and this
error is printed:
[538796.529342] hrtimer: interrupt took 37764682 ns
After that
I had the same problem, the laptop Dell Studio 1569 have been freezing
after 3-4 hours of work (ubuntu 13.04 amd64).
I tried to install bcmwl-kernel 6.30.223, disabled apport, disabled
Intel SpeedStep, used acpi=off noapic kernel args, to no avail.
Upgraded kernel to version 3.10.0.6 (taken from
Public bug reported:
Kernel 3.11.0-1-generic (installed on ubuntu 13.04 amd64).
Laptop Dell Studio 1569
# lspci | grep network
03:00.0 Network controller: Intel Corporation Centrino Advanced-N 6200 (rev 35)
ifconfig -a shows nothing (besides the loopback).
Comparing
Public bug reported:
kernel 3.11.0.1-generic from ubuntu 13.10 (installed on top of ubuntu
13.04):
Kernel module r8169 is present in config file
/boot/config-3.11.0-1-generic, but missing from the deb package, thus
wired network is not available.
** Affects: linux (Ubuntu)
Importance:
Because of the bug, the machine has no network, so can't run the apport-
collect command.
** Changed in: linux (Ubuntu)
Status: Incomplete = Confirmed
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Sorry, it does have the configuration lines (e.g. the modules are
compiled), but the final module files are not packaged into deb package
properly.
So it is essentially duplicate of bug #1211680
** Changed in: linux (Ubuntu)
Status: Incomplete = Confirmed
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