Further update: AWS kernel experienced the same error messages after
just over 3 hours of runtime.
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https://bugs.launchpad.net/bugs/1719339
Title:
serial8250: too much work for irq3
S
** Tags added: canonical-is
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https://bugs.launchpad.net/bugs/1719339
Title:
serial8250: too much work for irq3
Status in QEMU:
New
Bug description:
It's know issue and sometimes
I'm seeing this on AWS EC2 when there's (apparently) high logging volume
to the console, very similarly to
https://www.reddit.com/r/sysadmin/comments/6zuqad/mongodb_aws_ec2_serial8250_too_much_work_for_irq4/
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On further investigation of my instance, there appeared to be no high
logging volume to the console, nor anything using the /dev/ttyS0 other
than agetty. Switching from the generic kernel to the AWS kernel seems
to have stabilised it.
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