On 26.06.13 03:19, Attilio Rao wrote: > On Tue, Jun 25, 2013 at 11:27 PM, Florian Smeets <flo_at_smeets.im> wrote: >> 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. > > Can you break into KDB once the loop happens? > I cannot reproduce on kernels from yesterday/today. So for me the case is closed. Florian
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