Re: BUG in 3.19.0-rc3+

2015-01-11 Thread Oded Gabbay
On 01/11/2015 12:57 PM, Chris Clayton wrote: > Thanks Konstantin. > > [snip] > Looks like degree (%edx) is 1 on anon-vma desruction. Probably I've overlooked some weird conrner case in vma splitting/merging. Could you try this patch. It disables vma merging end eliminat

Re: BUG in 3.19.0-rc3+

2015-01-11 Thread Chris Clayton
Thanks Konstantin. [snip] >>> >>> Looks like degree (%edx) is 1 on anon-vma desruction. >>> Probably I've overlooked some weird conrner case in vma splitting/merging. >>> >>> Could you try this patch. It disables vma merging end eliminates half >>> of complicated paths. >>> As I see merging is op

Re: BUG in 3.19.0-rc3+

2015-01-11 Thread Konstantin Khlebnikov
On Sun, Jan 11, 2015 at 12:52 PM, Oded Gabbay wrote: > > > On 01/11/2015 11:37 AM, Konstantin Khlebnikov wrote: >> On Sun, Jan 11, 2015 at 11:16 AM, Chris Clayton >> wrote: >>> Hi, >>> >>> I've done the bisect and the outcome is below, but, because I almost always >>> forget to mention it, I'll

Re: BUG in 3.19.0-rc3+

2015-01-11 Thread Chris Clayton
On 01/11/15 09:52, Oded Gabbay wrote: > > > On 01/11/2015 11:37 AM, Konstantin Khlebnikov wrote: >> On Sun, Jan 11, 2015 at 11:16 AM, Chris Clayton >> wrote: >>> Hi, >>> >>> I've done the bisect and the outcome is below, but, because I almost always >>> forget to mention it, I'll say here tha

Re: BUG in 3.19.0-rc3+

2015-01-11 Thread Oded Gabbay
On 01/11/2015 11:37 AM, Konstantin Khlebnikov wrote: > On Sun, Jan 11, 2015 at 11:16 AM, Chris Clayton > wrote: >> Hi, >> >> I've done the bisect and the outcome is below, but, because I almost always >> forget to mention it, I'll say here that I >> am running a 32 bit user space on a 64 bit ke

Re: BUG in 3.19.0-rc3+

2015-01-11 Thread Konstantin Khlebnikov
On Sun, Jan 11, 2015 at 11:16 AM, Chris Clayton wrote: > Hi, > > I've done the bisect and the outcome is below, but, because I almost always > forget to mention it, I'll say here that I > am running a 32 bit user space on a 64 bit kernel. > > On 01/10/15 20:17, Chris Clayton wrote: >> Hi, >> >> I

Re: BUG in 3.19.0-rc3+

2015-01-11 Thread Chris Clayton
Hi, I've done the bisect and the outcome is below, but, because I almost always forget to mention it, I'll say here that I am running a 32 bit user space on a 64 bit kernel. On 01/10/15 20:17, Chris Clayton wrote: > Hi, > > I'm getting a bug a BUG report from a kernel built from a pull (earlier