On Wed, 26 Oct 2016 16:15:24 +0000, Yotam Gigi wrote: > >-----Original Message----- > >From: Anna Schumaker [mailto:[email protected]] > >Sent: Wednesday, October 26, 2016 5:40 PM > >To: Yotam Gigi <[email protected]>; Jakub Kicinski <[email protected]>; Andy > >Adamson <[email protected]>; Anna Schumaker > ><[email protected]>; [email protected] > >Cc: [email protected]; Trond Myklebust <[email protected]>; > >Yotam Gigi <[email protected]>; mlxsw <[email protected]> > >Subject: Re: nfs NULL-dereferencing in net-next > > > >On 10/25/2016 01:19 PM, Yotam Gigi wrote: > >> > >>> -----Original Message----- > >>> From: [email protected] [mailto:[email protected]] > >On > >>> Behalf Of Jakub Kicinski > >>> Sent: Monday, October 17, 2016 10:20 PM > >>> To: Andy Adamson <[email protected]>; Anna Schumaker > >>> <[email protected]>; [email protected] > >>> Cc: [email protected]; Trond Myklebust > ><[email protected]> > >>> Subject: nfs NULL-dereferencing in net-next > >>> > >>> Hi! > >>> > >>> I'm hitting this reliably on net-next, HEAD at 3f3177bb680f > >>> ("fsl/fman: fix error return code in mac_probe()"). > >> > >> > >> I see the same thing. It happens constantly on some of my machines, making > >> > >them > >> completely unusable. > >> > >> I bisected it and got to the commit: > >> > >> commit 04ea1b3e6d8ed4978bb608c1748530af3de8c274 > >> Author: Andy Adamson <[email protected]> > >> Date: Fri Sep 9 09:22:27 2016 -0400 > >> > >> NFS add xprt switch addrs test to match client > >> > >> Signed-off-by: Andy Adamson <[email protected]> > >> Signed-off-by: Anna Schumaker <[email protected]> > > > >Thanks for reporting on this everyone! Does this patch help? > > Actually, I still see the same bug with the same trace.
I rebuild the latest net-next and I'm not seeing the trace any more... I'm only seeing this (with or without your patch): [ 23.465877] NFS: set_pnfs_layoutdriver: cl_exchange_flags 0x0 [ 23.473784] NFS: set_pnfs_layoutdriver: cl_exchange_flags 0x0 [ 23.588890] NFS: set_pnfs_layoutdriver: cl_exchange_flags 0x0 [ 23.596746] NFS: set_pnfs_layoutdriver: cl_exchange_flags 0x0 [ 23.781574] NFS: set_pnfs_layoutdriver: cl_exchange_flags 0x0 [ 23.789599] NFS: set_pnfs_layoutdriver: cl_exchange_flags 0x0 HTH
