Re: [ceph-users] machine hangs & soft lockups with 10.2.2 / kernel 4.4.0

2017-01-24 Thread Peter Maloney
linux-stable/Documentation/oops-tracing.txt: > 8: 'D' if the kernel has died recently, i.e. there was an OOPS or BUG. > 15: 'L' if a soft lockup has previously occurred on the system. Your first entry already has D and L... can you try to get the first one before D or L were flagged? What your l

Re: [ceph-users] machine hangs & soft lockups with 10.2.2 / kernel 4.4.0

2017-01-23 Thread jiajia zhong
try a newer kernel. like 4.8 2017-01-24 0:37 GMT+08:00 Matthew Vernon : > Hi, > > We have a 9-node ceph cluster, running 10.2.2 and kernel 4.4.0 (Ubuntu > Xenial). We're seeing both machines freezing (nothing in logs on the > machine, which is entirely unresponsive to anything except the power >

Re: [ceph-users] machine hangs & soft lockups with 10.2.2 / kernel 4.4.0

2017-01-23 Thread Matthew Vernon
On 23/01/17 16:40, Tu Holmes wrote: > While I know this seems a silly question, are your monitoring nodes > spec'd the same? Oh, sorry, I should have said that. All 9 machines have osds on (1 per disk); additionally 3 of the nodes are also mons and 3 (a different 3) are rgws. One of the freezing

Re: [ceph-users] machine hangs & soft lockups with 10.2.2 / kernel 4.4.0

2017-01-23 Thread Tu Holmes
While I know this seems a silly question, are your monitoring nodes spec'd the same? //Tu On Mon, Jan 23, 2017 at 8:38 AM Matthew Vernon wrote: > Hi, > > We have a 9-node ceph cluster, running 10.2.2 and kernel 4.4.0 (Ubuntu > Xenial). We're seeing both machines freezing (nothing in logs on the

[ceph-users] machine hangs & soft lockups with 10.2.2 / kernel 4.4.0

2017-01-23 Thread Matthew Vernon
Hi, We have a 9-node ceph cluster, running 10.2.2 and kernel 4.4.0 (Ubuntu Xenial). We're seeing both machines freezing (nothing in logs on the machine, which is entirely unresponsive to anything except the power button) and suffering soft lockups. Has anyone seen similar? Googling hasn't found a