Control: severity -1 important On Mon, 2023-07-24 at 15:40 +0200, Christian Göttsche wrote: > Package: src:linux > Version: 6.4.4-1 > Severity: serious > > Dear Maintainer, > > Kernel 6.4.4 is affected by a regression causing one core be report > high IO wait utilization. > > See https://lore.kernel.org/lkml/12251678.o9o76zd...@natalenko.name/
There is no such thing as a CPU having "high IO wait utilization". When tasks are in I/O wait state, they are not using a CPU. Unfortunately, for historical reasons Linux includes such tasks in the load average and reports a CPU as being in I/O wait state when it's idle and the last task running on it went into I/O wait state (at least I think that's what the rule is). So this bug is about an unwanted change in task/CPU state reporting, not tasks suddenly using much more CPU time. For that reason, I don't think it should "serious", i.e. a blocker for testing propagation. Ben. -- Ben Hutchings Never attribute to conspiracy what can adequately be explained by stupidity.
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