Re: [PATCH 4.19 23/30] x86_64: increase stack size for KASAN_EXTRA

2019-02-21 Thread Greg Kroah-Hartman
On Thu, Feb 21, 2019 at 06:30:08PM +0300, Andrey Ryabinin wrote: > > > On 2/21/19 6:26 PM, Greg Kroah-Hartman wrote: > > On Thu, Feb 21, 2019 at 06:00:06PM +0300, Andrey Ryabinin wrote: > >> On 2/21/19 5:36 PM, Greg Kroah-Hartman wrote: > >>> 4.19-stable review patch. If anyone has any

Re: [PATCH 4.19 23/30] x86_64: increase stack size for KASAN_EXTRA

2019-02-21 Thread Andrey Ryabinin
On 2/21/19 6:26 PM, Greg Kroah-Hartman wrote: > On Thu, Feb 21, 2019 at 06:00:06PM +0300, Andrey Ryabinin wrote: >> On 2/21/19 5:36 PM, Greg Kroah-Hartman wrote: >>> 4.19-stable review patch. If anyone has any objections, please let me know. >>> >> >> Drop it please. It increases kernel stack

Re: [PATCH 4.19 23/30] x86_64: increase stack size for KASAN_EXTRA

2019-02-21 Thread Greg Kroah-Hartman
On Thu, Feb 21, 2019 at 06:00:06PM +0300, Andrey Ryabinin wrote: > On 2/21/19 5:36 PM, Greg Kroah-Hartman wrote: > > 4.19-stable review patch. If anyone has any objections, please let me know. > > > > Drop it please. It increases kernel stack up to 4-order which is above >

Re: [PATCH 4.19 23/30] x86_64: increase stack size for KASAN_EXTRA

2019-02-21 Thread Andrey Ryabinin
On 2/21/19 5:36 PM, Greg Kroah-Hartman wrote: > 4.19-stable review patch. If anyone has any objections, please let me know. > Drop it please. It increases kernel stack up to 4-order which is above PAGE_ALLOC_COSTLY_ORDER. This changes behavior of the fork() by making it fail with -ENOMEM due

[PATCH 4.19 23/30] x86_64: increase stack size for KASAN_EXTRA

2019-02-21 Thread Greg Kroah-Hartman
4.19-stable review patch. If anyone has any objections, please let me know. -- From: Qian Cai commit a8e911d13540487942d53137c156bd7707f66e5d upstream. If the kernel is configured with KASAN_EXTRA, the stack size is increasted significantly because this option sets