Can those experiencing this issue try the following kernel boot option (& un-blacklist any previously blacklisted drivers):
nohz=off
This disables the 'tickless' aspect of the tickless kernel (enabled by default in Gutsy & perhaps other releases). ksoftirqd appears to be getting bombarded by by requests (probably from not quite fully polished hardware drivers). This may solve the issue.
Can those experiencing this issue try the following kernel boot option (& un-blacklist any previously blacklisted drivers):
nohz=off
This disables the 'tickless' aspect of the tickless kernel (enabled by default in Gutsy & perhaps other releases). ksoftirqd appears to be getting bombarded by by requests (probably from not quite fully polished hardware drivers). This may solve the issue.