Re: v4.6 kernel BUG at mm/rmap.c:1101!

2016-05-25 Thread Mika Westerberg
On Mon, May 23, 2016 at 05:18:55PM +0200, Andrea Arcangeli wrote: > > diff --git a/mm/rmap.c b/mm/rmap.c > > index 8a839935b18c..0ea5d9071b32 100644 > > --- a/mm/rmap.c > > +++ b/mm/rmap.c > > @@ -1098,6 +1098,8 @@ void page_move_anon_rmap(struct page *page, > > > > VM_BUG_ON_PAGE(!PageLocked

Re: v4.6 kernel BUG at mm/rmap.c:1101!

2016-05-24 Thread Mika Westerberg
On Tue, May 24, 2016 at 04:08:09PM +0200, Andrea Arcangeli wrote: > On Tue, May 24, 2016 at 11:12:23AM +0300, Mika Westerberg wrote: > > Hmm, the kernel shipped with Fedora 23 has that enabled: > > > > lahna % grep CONFIG_DEBUG_VM /boot/config-4.4.9-300.fc23.x86_64 > > CONFIG_DEBUG_VM=y > > # CON

Re: v4.6 kernel BUG at mm/rmap.c:1101!

2016-05-24 Thread Andrea Arcangeli
On Tue, May 24, 2016 at 11:12:23AM +0300, Mika Westerberg wrote: > Hmm, the kernel shipped with Fedora 23 has that enabled: > > lahna % grep CONFIG_DEBUG_VM /boot/config-4.4.9-300.fc23.x86_64 > CONFIG_DEBUG_VM=y > # CONFIG_DEBUG_VM_VMACACHE is not set > # CONFIG_DEBUG_VM_RB is not set Yes, it wo

Re: v4.6 kernel BUG at mm/rmap.c:1101!

2016-05-24 Thread Mika Westerberg
On Mon, May 23, 2016 at 05:08:26PM +0200, Andrea Arcangeli wrote: > On Mon, May 23, 2016 at 05:06:38PM +0300, Mika Westerberg wrote: > > Hi, > > > > After upgrading kernel of my desktop system from v4.6-rc7 to v4.6, I've > > started seeing following: > > > > [176611.093747] page:ea36

Re: v4.6 kernel BUG at mm/rmap.c:1101!

2016-05-23 Thread Andrea Arcangeli
On Mon, May 23, 2016 at 05:24:59PM +0300, Kirill A. Shutemov wrote: > On Mon, May 23, 2016 at 05:06:38PM +0300, Mika Westerberg wrote: > > Hi, > > > > After upgrading kernel of my desktop system from v4.6-rc7 to v4.6, I've > > started seeing following: > > > > [176611.093747] page:ea36000

Re: v4.6 kernel BUG at mm/rmap.c:1101!

2016-05-23 Thread Andrea Arcangeli
On Mon, May 23, 2016 at 05:06:38PM +0300, Mika Westerberg wrote: > Hi, > > After upgrading kernel of my desktop system from v4.6-rc7 to v4.6, I've > started seeing following: > > [176611.093747] page:ea36 count:1 mapcount:0 > mapping:880034d2e0a1 index:0x1f9b06600 compound_mapcou

Re: v4.6 kernel BUG at mm/rmap.c:1101!

2016-05-23 Thread Kirill A. Shutemov
On Mon, May 23, 2016 at 05:06:38PM +0300, Mika Westerberg wrote: > Hi, > > After upgrading kernel of my desktop system from v4.6-rc7 to v4.6, I've > started seeing following: > > [176611.093747] page:ea36 count:1 mapcount:0 > mapping:880034d2e0a1 index:0x1f9b06600 compound_mapcou

v4.6 kernel BUG at mm/rmap.c:1101!

2016-05-23 Thread Mika Westerberg
Hi, After upgrading kernel of my desktop system from v4.6-rc7 to v4.6, I've started seeing following: [176611.093747] page:ea36 count:1 mapcount:0 mapping:880034d2e0a1 index:0x1f9b06600 compound_mapcount: 0 [176611.093751] flags: 0x3fff844079(locked|uptodate|dirty|lru|active