I think I'm seeing the same issue, but not sure. Let me know if I should
file a new bug:
```
[31816.378948] bad: scheduling from the idle thread!
[31816.378950] CPU: 19 PID: 0 Comm: swapper/19 Tainted: GW OEL
4.4.0-21-generic #37-Ubuntu
[31816.378950] Hardware name: Supermicro
That patch was released in Ubuntu-4.4.0-35.54
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Title:
NVMe triggering kernel panic followed by "bad: scheduling from the
idle
A couple issues here. The nvme driver was ported from 4.5, but the block
layer was based on 4.4, so there was a mismatch in how to handle
timeouts. That was this launchpad:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1597908
But also, there is a bug handling legacy IRQ that only
Paul - have you confirmed that you are no longer seeing the issue? If
yes, please update this bug with the info.
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Title:
NVMe
There isn't a kernel in proposed at the moment, but I've tested using
the latest in yakkety and it seems to be working fine.
I don't have a simple replication case for the bug, unfortunately. It
just seems to happen for (hand-wavey guess) 50% of boots.
So far I've got this 4.8.0-19-generic
Can you test the Yakkety proposed kernel and post back if it resolves
this bug?
See https://wiki.ubuntu.com/Testing/EnableProposed for documentation how
to enable and use -proposed.
** Changed in: linux (Ubuntu)
Status: Confirmed => Triaged
** Tags added: kernel-da-key
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** Changed in: linux (Ubuntu)
Importance: Undecided => High
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Title:
NVMe triggering kernel panic followed by "bad: scheduling
gzip'd copy of the kern.log showing the error.
** Attachment added: "kern.log.gz"
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1626679/+attachment/4746377/+files/kern.log.gz
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