Re: Kernel task 276 consumes 100% of io bandwidth on boo drive

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On 05/09/2018 10:58 AM, JD wrote:
>   276 be/3 root        0.00 B/s    0.00 B/s 0.00 % 99.85 % [jbd2/sda3-8]
> 
> When I booted, drive was clean!!
> 
> All my current running processes (i.e. ones I started), are quiescent.
> 
> Whith glitches like these, it makes a LOT more difficult to honetsly tell
> students why they should switch to Fedora, "because it is better????".

Whoa, whoa! jdb2 is the ext4 journalling daemon. It wouldn't be sucking
up that kind of CPU continuously unless something is flogging the
filesystem and that's what you have to look for.

It's not clear which device is getting hammered, so I'd run something
like "iostat -p ALL 2" or something to see which device is getting
poked, then chase things down from there (such as seeing what has open
files on that device via lsof). Find the offending process, kill it and
I'll bet that calms down. My first guess is something is doing a
boatload of logging and that may not be obvious from a simple "ps"
listing.

That being said, keep in mind that Fedora is bleeding edge stuff. You're
undoubtedly going to get glitches but I seriously doubt this is a
Fedora-specific issue. If you want stable, long lived stuff, use CentOS.
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-                Huked on foniks reely wurked for me!                -
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