Re: [REGRESSION] mm: filemap_map_pages NULL pointer dereference

2016-02-07 Thread Jeremiah Mahler
Konstantin, Andrew, On Fri, Feb 05, 2016 at 02:19:40PM -0800, Andrew Morton wrote: > On Fri, 5 Feb 2016 10:05:02 -0800 Jeremiah Mahler wrote: > [...] > > This should fix it up. > > From: Konstantin Khlebnikov > Subject: radix-tree: fix oops after radix_tree_iter_retry > > Helper radix_tree_i

Re: [REGRESSION] mm: filemap_map_pages NULL pointer dereference

2016-02-07 Thread Jeremiah Mahler
Konstantin, On Sun, Feb 07, 2016 at 11:27:53AM +0300, Konstantin Khlebnikov wrote: > On Sat, Feb 6, 2016 at 9:18 PM, Jeremiah Mahler wrote: [...] > >> -static __always_inline unsigned > >> +static __always_inline long > >> radix_tree_chunk_size(struct radix_tree_iter *iter) > >> { > >> re

Re: [REGRESSION] mm: filemap_map_pages NULL pointer dereference

2016-02-07 Thread Konstantin Khlebnikov
On Sat, Feb 6, 2016 at 9:18 PM, Jeremiah Mahler wrote: > Andrew, > > On Fri, Feb 05, 2016 at 02:19:40PM -0800, Andrew Morton wrote: >> On Fri, 5 Feb 2016 10:05:02 -0800 Jeremiah Mahler wrote: >> > [...] >> > unable to handle kernel NULL pointer dereference >> >> This should fix it up. >> > [...

Re: [REGRESSION] mm: filemap_map_pages NULL pointer dereference

2016-02-06 Thread Jeremiah Mahler
Andrew, On Fri, Feb 05, 2016 at 02:19:40PM -0800, Andrew Morton wrote: > On Fri, 5 Feb 2016 10:05:02 -0800 Jeremiah Mahler wrote: > [...] > > unable to handle kernel NULL pointer dereference > > This should fix it up. > [...] > > include/linux/radix-tree.h |6 +++--- > 1 file changed,

Re: [REGRESSION] mm: filemap_map_pages NULL pointer dereference

2016-02-05 Thread Andrew Morton
On Fri, 5 Feb 2016 10:05:02 -0800 Jeremiah Mahler wrote: > On a Lenovo X1 Carbon running -next (20160201+, 20160203+) I have > experienced several system hangs. I usually notice it first when > my browser (Chrome) stops responding but then other programs will stop > responding as well. The only

Re: [REGRESSION] mm: filemap_map_pages NULL pointer dereference

2016-02-05 Thread Andrew Morton
On Fri, 5 Feb 2016 10:05:02 -0800 Jeremiah Mahler wrote: > all, > > On a Lenovo X1 Carbon running -next (20160201+, 20160203+) I have > experienced several system hangs. I usually notice it first when > my browser (Chrome) stops responding but then other programs will stop > responding as well.