Re: RCU stall and the system boot hang with nfsroot

2016-01-05 Thread Paul E. McKenney
On Tue, Jan 05, 2016 at 03:57:54PM +0800, Aaron Ma wrote: > On Tue, Jan 5, 2016 at 5:18 AM, Paul E. McKenney > wrote: > > On Mon, Jan 04, 2016 at 06:01:37PM +0800, Aaron Ma wrote: > >> On Fri, Jan 1, 2016 at 3:49 AM, Paul E. McKenney > >> wrote: > >> > On Wed, Dec 30, 2015 at 09:41:45AM -0800, Pa

Re: RCU stall and the system boot hang with nfsroot

2016-01-04 Thread Aaron Ma
On Tue, Jan 5, 2016 at 5:18 AM, Paul E. McKenney wrote: > On Mon, Jan 04, 2016 at 06:01:37PM +0800, Aaron Ma wrote: >> On Fri, Jan 1, 2016 at 3:49 AM, Paul E. McKenney >> wrote: >> > On Wed, Dec 30, 2015 at 09:41:45AM -0800, Paul E. McKenney wrote: >> >> On Wed, Dec 30, 2015 at 03:03:33PM +0800,

Re: RCU stall and the system boot hang with nfsroot

2016-01-04 Thread Paul E. McKenney
On Mon, Jan 04, 2016 at 06:01:37PM +0800, Aaron Ma wrote: > On Fri, Jan 1, 2016 at 3:49 AM, Paul E. McKenney > wrote: > > On Wed, Dec 30, 2015 at 09:41:45AM -0800, Paul E. McKenney wrote: > >> On Wed, Dec 30, 2015 at 03:03:33PM +0800, Aaron Ma wrote: > >> > On Wed, Dec 30, 2015 at 7:42 AM, Paul E.

Re: RCU stall and the system boot hang with nfsroot

2016-01-04 Thread Aaron Ma
On Fri, Jan 1, 2016 at 3:49 AM, Paul E. McKenney wrote: > On Wed, Dec 30, 2015 at 09:41:45AM -0800, Paul E. McKenney wrote: >> On Wed, Dec 30, 2015 at 03:03:33PM +0800, Aaron Ma wrote: >> > On Wed, Dec 30, 2015 at 7:42 AM, Paul E. McKenney >> > wrote: > > [ . . . ] > >> > cfg80211: Calling CRDA t

Re: RCU stall and the system boot hang with nfsroot

2015-12-31 Thread Paul E. McKenney
On Wed, Dec 30, 2015 at 09:41:45AM -0800, Paul E. McKenney wrote: > On Wed, Dec 30, 2015 at 03:03:33PM +0800, Aaron Ma wrote: > > On Wed, Dec 30, 2015 at 7:42 AM, Paul E. McKenney > > wrote: [ . . . ] > > cfg80211: Calling CRDA to update world regulatory domain > > cfg80211: Calling CRDA to upda

Re: RCU stall and the system boot hang with nfsroot

2015-12-30 Thread Paul E. McKenney
On Wed, Dec 30, 2015 at 03:03:33PM +0800, Aaron Ma wrote: > On Wed, Dec 30, 2015 at 7:42 AM, Paul E. McKenney > wrote: > > On Tue, Dec 29, 2015 at 05:34:38PM +0800, Aaron Ma wrote: > >> Add paul...@linux.vnet.ibm.com > >> > >> On Tue, Dec 29, 2015 at 5:32 PM, Aaron Ma wrote: > >> > Hi, Paul: > >>

Re: RCU stall and the system boot hang with nfsroot

2015-12-29 Thread Aaron Ma
On Wed, Dec 30, 2015 at 7:42 AM, Paul E. McKenney wrote: > On Tue, Dec 29, 2015 at 05:34:38PM +0800, Aaron Ma wrote: >> Add paul...@linux.vnet.ibm.com >> >> On Tue, Dec 29, 2015 at 5:32 PM, Aaron Ma wrote: >> > Hi, Paul: >> > I found the linux-stable-4.1.15 with rt15 patches boot hang sometimes.

Re: RCU stall and the system boot hang with nfsroot

2015-12-29 Thread Paul E. McKenney
On Tue, Dec 29, 2015 at 05:34:38PM +0800, Aaron Ma wrote: > Add paul...@linux.vnet.ibm.com > > On Tue, Dec 29, 2015 at 5:32 PM, Aaron Ma wrote: > > Hi, Paul: > > I found the linux-stable-4.1.15 with rt15 patches boot hang sometimes. > > Hardware is Grantley-EP and WildcatPass. I must confess tha

Re: RCU stall and the system boot hang with nfsroot

2015-12-29 Thread Aaron Ma
Add paul...@linux.vnet.ibm.com On Tue, Dec 29, 2015 at 5:32 PM, Aaron Ma wrote: > Hi, Paul: > I found the linux-stable-4.1.15 with rt15 patches boot hang sometimes. > Hardware is Grantley-EP and WildcatPass. > No response by sysrq. > > Did you found any issue about this? Or how can I address this