Re: "fs/namei.c: keep track of nd->root refcount status" causes boot panic

2019-09-05 Thread Al Viro
On Thu, Sep 05, 2019 at 02:43:12PM +0530, Naresh Kamboju wrote: > Hi Christoph and Al Viro, > > Linux next 20190904 boot PASS now. > May i know which patch fixed this problem ? commit 84a2bd39405ffd5fa6d6d77e408c5b9210da98de Author: Al Viro Date: Tue Jul 16 21:20:17 2019 -0400

Re: "fs/namei.c: keep track of nd->root refcount status" causes boot panic

2019-09-05 Thread Kevin Easton
On Tue, Sep 03, 2019 at 06:56:10PM +0100, Al Viro wrote: > On Tue, Sep 03, 2019 at 08:39:30AM -0700, Christoph Hellwig wrote: > > > > There's much nastier situation than "new upstream kernel released, > > > need to rebuild" - it's bisect in mainline trying to locate something... > > > > I really

Re: "fs/namei.c: keep track of nd->root refcount status" causes boot panic

2019-09-05 Thread Naresh Kamboju
Hi Christoph and Al Viro, Linux next 20190904 boot PASS now. May i know which patch fixed this problem ? - Naresh

Re: "fs/namei.c: keep track of nd->root refcount status" causes boot panic

2019-09-04 Thread Christoph Hellwig
On Tue, Sep 03, 2019 at 06:56:10PM +0100, Al Viro wrote: > On Tue, Sep 03, 2019 at 08:39:30AM -0700, Christoph Hellwig wrote: > > > > There's much nastier situation than "new upstream kernel released, > > > need to rebuild" - it's bisect in mainline trying to locate something... > > > > I really

Re: "fs/namei.c: keep track of nd->root refcount status" causes boot panic

2019-09-03 Thread Theodore Y. Ts'o
On Tue, Sep 03, 2019 at 06:50:24AM -0700, Christoph Hellwig wrote: > On Tue, Sep 03, 2019 at 02:48:32PM +0100, Al Viro wrote: > > Not sure what would be the best way to do it... I don't mind breaking > > the out-of-tree modules, whatever their license is; what I would rather > > avoid is _quiet_

Re: "fs/namei.c: keep track of nd->root refcount status" causes boot panic

2019-09-03 Thread Al Viro
On Tue, Sep 03, 2019 at 08:39:30AM -0700, Christoph Hellwig wrote: > > There's much nastier situation than "new upstream kernel released, > > need to rebuild" - it's bisect in mainline trying to locate something... > > I really don't get the point. And it's not like we've card about > this

Re: "fs/namei.c: keep track of nd->root refcount status" causes boot panic

2019-09-03 Thread Christoph Hellwig
On Tue, Sep 03, 2019 at 02:53:54PM +0100, Al Viro wrote: > On Tue, Sep 03, 2019 at 06:50:24AM -0700, Christoph Hellwig wrote: > > On Tue, Sep 03, 2019 at 02:48:32PM +0100, Al Viro wrote: > > > Not sure what would be the best way to do it... I don't mind breaking > > > the out-of-tree modules,

Re: "fs/namei.c: keep track of nd->root refcount status" causes boot panic

2019-09-03 Thread Al Viro
On Tue, Sep 03, 2019 at 06:50:24AM -0700, Christoph Hellwig wrote: > On Tue, Sep 03, 2019 at 02:48:32PM +0100, Al Viro wrote: > > Not sure what would be the best way to do it... I don't mind breaking > > the out-of-tree modules, whatever their license is; what I would rather > > avoid is _quiet_

Re: "fs/namei.c: keep track of nd->root refcount status" causes boot panic

2019-09-03 Thread Naresh Kamboju
Hi On Tue, 3 Sep 2019 at 19:01, Al Viro wrote: > > On Tue, Sep 03, 2019 at 01:37:19PM +0100, Al Viro wrote: > > On Tue, Sep 03, 2019 at 12:21:36AM -0400, Qian Cai wrote: > > > The linux-next commit "fs/namei.c: keep track of nd->root refcount > > > status” [1] causes boot panic on all > > >

Re: "fs/namei.c: keep track of nd->root refcount status" causes boot panic

2019-09-03 Thread Christoph Hellwig
On Tue, Sep 03, 2019 at 02:48:32PM +0100, Al Viro wrote: > Not sure what would be the best way to do it... I don't mind breaking > the out-of-tree modules, whatever their license is; what I would rather > avoid is _quiet_ breaking of such. Any out of tree module running against an upstream

Re: "fs/namei.c: keep track of nd->root refcount status" causes boot panic

2019-09-03 Thread Al Viro
On Tue, Sep 03, 2019 at 06:04:56AM -0700, Christoph Hellwig wrote: > On Tue, Sep 03, 2019 at 01:37:19PM +0100, Al Viro wrote: > > On Tue, Sep 03, 2019 at 12:21:36AM -0400, Qian Cai wrote: > > > The linux-next commit "fs/namei.c: keep track of nd->root refcount > > > status” [1] causes boot panic

Re: "fs/namei.c: keep track of nd->root refcount status" causes boot panic

2019-09-03 Thread Al Viro
On Tue, Sep 03, 2019 at 01:37:19PM +0100, Al Viro wrote: > On Tue, Sep 03, 2019 at 12:21:36AM -0400, Qian Cai wrote: > > The linux-next commit "fs/namei.c: keep track of nd->root refcount status” > > [1] causes boot panic on all > > architectures here on today’s linux-next (0902). Reverted it

Re: "fs/namei.c: keep track of nd->root refcount status" causes boot panic

2019-09-03 Thread Christoph Hellwig
On Tue, Sep 03, 2019 at 01:37:19PM +0100, Al Viro wrote: > On Tue, Sep 03, 2019 at 12:21:36AM -0400, Qian Cai wrote: > > The linux-next commit "fs/namei.c: keep track of nd->root refcount status” > > [1] causes boot panic on all > > architectures here on today’s linux-next (0902). Reverted it

Re: "fs/namei.c: keep track of nd->root refcount status" causes boot panic

2019-09-03 Thread Al Viro
On Tue, Sep 03, 2019 at 12:21:36AM -0400, Qian Cai wrote: > The linux-next commit "fs/namei.c: keep track of nd->root refcount status” > [1] causes boot panic on all > architectures here on today’s linux-next (0902). Reverted it will fix the > issue. OK, I see what's going on. Incremental to

Re: "fs/namei.c: keep track of nd->root refcount status" causes boot panic

2019-09-03 Thread Sachin Sant
> On 03-Sep-2019, at 1:43 PM, Naresh Kamboju wrote: > > On Tue, 3 Sep 2019 at 09:51, Qian Cai wrote: >> >> The linux-next commit "fs/namei.c: keep track of nd->root refcount status” >> [1] causes boot panic on all >> architectures here on today’s linux-next (0902). Reverted it will fix the

Re: "fs/namei.c: keep track of nd->root refcount status" causes boot panic

2019-09-03 Thread Naresh Kamboju
On Tue, 3 Sep 2019 at 09:51, Qian Cai wrote: > > The linux-next commit "fs/namei.c: keep track of nd->root refcount status” > [1] causes boot panic on all > architectures here on today’s linux-next (0902). Reverted it will fix the > issue. I have same problem and reverting this patch fixed the

RE: "fs/namei.c: keep track of nd->root refcount status" causes boot panic

2019-09-03 Thread Dexuan Cui
FYI: this is a slightly different call-trace. I believe this also show a memory corruption... [ 17.848975] Run /init as init process Loading, please wait... starting version 239 [ 18.045913] BUG: unable to handle page fault for address: 8884bb8f4b98 [ 18.046012] #PF: supervisor write

RE: "fs/namei.c: keep track of nd->root refcount status" causes boot panic

2019-09-02 Thread Dexuan Cui
> From: Dexuan-Linux Cui > Sent: Monday, September 2, 2019 10:22 PM > To: Qian Cai > Cc: Al Viro ; linux-fsde...@vger.kernel.org; LKML > ; Dexuan Cui ; Lili Deng > (Wicresoft North America Ltd) > Subject: Re: "fs/namei.c: keep track of nd->root refcount status&quo

Re: "fs/namei.c: keep track of nd->root refcount status" causes boot panic

2019-09-02 Thread Dexuan-Linux Cui
On Mon, Sep 2, 2019 at 9:22 PM Qian Cai wrote: > > The linux-next commit "fs/namei.c: keep track of nd->root refcount status” > [1] causes boot panic on all > architectures here on today’s linux-next (0902). Reverted it will fix the > issue. I believe I'm seeing the same issue with