Correct. Interplay between DFS referrals and vers=2.[01] seems to be where we're at... On Thu, Aug 16, 2018 at 3:46 PM Steve French <smfrench@xxxxxxxxx> wrote: > > and to clarify - DFS referral to Windows 2016 works with 3.0 or later, > but reboots with 2.0 or 2.1? > On Thu, Aug 16, 2018 at 3:42 PM Robin P. Blanchard > <robin.blanchard@xxxxxxxxx> wrote: > > > > Summary of regression between 4.17.14 and 4.18.0 > > > > pam_mount is/was red herring > > > > vers=2.0 and vers=2.1 trigger spontaneous reboots **using DFS pathing** to > > - Microsoft Windows Server 2008 R2 Enterprise > > - Microsoft Windows Server 2016 Datacenter > > > > mounting directly to one of the underlying DFS member servers does NOT > > trigger spontaneous reboot. > > > > > > On Thu, Aug 16, 2018 at 3:21 PM Steve French <smfrench@xxxxxxxxx> wrote: > > > > > > On Thu, Aug 16, 2018 at 3:14 PM Robin P. Blanchard > > > <robin.blanchard@xxxxxxxxx> wrote: > > > > > > > > On Thu, Aug 16, 2018 at 2:49 PM Tom Talpey <ttalpey@xxxxxxxxxxxxx> wrote: > > > > > > > > > > > -----Original Message----- > > > > > > From: linux-cifs-owner@xxxxxxxxxxxxxxx <linux-cifs-owner@xxxxxxxxxxxxxxx> On > > > > > > Behalf Of Robin P. Blanchard > > > > > > Sent: Thursday, August 16, 2018 3:34 PM > > > > > > To: Steve French <smfrench@xxxxxxxxx> > > > > > > Cc: linux-cifs@xxxxxxxxxxxxxxx > > > > > > Subject: Re: regression in CIFS(?) between 4.17.14 and 4.18.0 > > > > > > > > > > > > Ok. "Good" news. > > > > > > > > > > > > The issue is specific to vers=2.0. > > > > > > > > > > Your Windows Server 2008R2 target supports SMB2.1, is there some reason you > > > > > are not using the 2.1 dialect? It is *much* preferred to the baselevel 2.0, though of > > > > > course any 3.x is better still. > > > > > > > > > > Tom. > > > > > > > > Sure. This, however, doesn't explain the regression. > > > > > > > > FWIW - just rested: vers=2.1 also triggers spontaneous reboot > > > > > > So barring other differences in the server (unexpected return code > > > that Windows 2008R2 > > > returns that Samba or Windows 2012 or Windows 2016 or Mac servers or NetApp > > > wouldn't return) ... best theory is that only the older two dialects > > > SMB2.0 and SMB2.1 broke for your scenario, but only if mounted via pam_mount > > > not if mounted explicitly from bash? > > > > > > Is that correct? > > > > > > If anyone else is able to repro this let us know ASAP, and of course any data > > > on location of oops would be huge help ... perhaps build kernel with different > > > kconfig options for debugging > > > > > > -- > > > Thanks, > > > > > > Steve > > > > -- > Thanks, > > Steve
