Kernel hangs on reboot on system with 05/2013~06/2013 CURRENT sources

[Florian Smeets]

On 06/25/2013 22:45, Garrett Cooper wrote:
>     Long story short is that I've run into an issue on several VM
> images and real machines where UFS on mpt fails to reboot because it
> hangs in the kernel. I don't have any specific details, other than it
> occurs regularly with cam/mpt on VMware boxes running builds; however
> I've also seen this occur with a Dell box that has an mpt SAS
> controller with 2 zpools and gobs of RAM. Does anyone know of any
> issues in this area [recently]?
>     This set of issues appears to have started cropping up after
> 03/2013, because I was running reliable builds off those sources.
> Thanks!
> -Garrett
> 

Yes, I saw the same thing today when rebooting a box running r251905:
Tue Jun 18 10:12:42 CEST 2013 with ahci on a zfs only system.

I update this box about once a week, that previous kernel was from Jun
11. and that still rebooted successfully. As the kernel from June 18. is
now kernel.old I don't know the SVN rev for the June 11 kernel, but it
looks like it was broken between June 11. and 18.

However my workstation, also running a kernel from June 18. does still
reboot OK, it's using ahci and UFS.

Florian

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