Re: [RFC v6 PATCH 2/2] mm: mmap: zap pages with read mmap_sem in munmap

On 8/8/18 2:22 AM, Vlastimil Babka wrote: On 08/08/2018 03:51 AM, Yang Shi wrote: On 8/6/18 10:45 PM, Michal Hocko wrote: On Mon 06-08-18 15:19:06, Yang Shi wrote: On 8/6/18 1:52 PM, Michal Hocko wrote: On Mon 06-08-18 13:48:35, Yang Shi wrote: On 8/6/18 1:41 PM, Michal Hocko wrote: On M

Re: [RFC v6 PATCH 2/2] mm: mmap: zap pages with read mmap_sem in munmap

On 08/08/2018 03:51 AM, Yang Shi wrote: > On 8/6/18 10:45 PM, Michal Hocko wrote: >> On Mon 06-08-18 15:19:06, Yang Shi wrote: >>> >>> On 8/6/18 1:52 PM, Michal Hocko wrote: On Mon 06-08-18 13:48:35, Yang Shi wrote: > On 8/6/18 1:41 PM, Michal Hocko wrote: >> On Mon 06-08-18 09:46:30,

Re: [RFC v6 PATCH 2/2] mm: mmap: zap pages with read mmap_sem in munmap

On 8/6/18 10:45 PM, Michal Hocko wrote: On Mon 06-08-18 15:19:06, Yang Shi wrote: On 8/6/18 1:52 PM, Michal Hocko wrote: On Mon 06-08-18 13:48:35, Yang Shi wrote: On 8/6/18 1:41 PM, Michal Hocko wrote: On Mon 06-08-18 09:46:30, Yang Shi wrote: On 8/6/18 2:40 AM, Michal Hocko wrote: On F

Re: [RFC v6 PATCH 2/2] mm: mmap: zap pages with read mmap_sem in munmap

On Mon 06-08-18 15:19:06, Yang Shi wrote: > > > On 8/6/18 1:52 PM, Michal Hocko wrote: > > On Mon 06-08-18 13:48:35, Yang Shi wrote: > > > > > > On 8/6/18 1:41 PM, Michal Hocko wrote: > > > > On Mon 06-08-18 09:46:30, Yang Shi wrote: > > > > > On 8/6/18 2:40 AM, Michal Hocko wrote: > > > > > > O

Re: [RFC v6 PATCH 2/2] mm: mmap: zap pages with read mmap_sem in munmap

On 8/6/18 1:52 PM, Michal Hocko wrote: On Mon 06-08-18 13:48:35, Yang Shi wrote: On 8/6/18 1:41 PM, Michal Hocko wrote: On Mon 06-08-18 09:46:30, Yang Shi wrote: On 8/6/18 2:40 AM, Michal Hocko wrote: On Fri 03-08-18 14:01:58, Yang Shi wrote: On 8/3/18 2:07 AM, Michal Hocko wrote: On Fr

Re: [RFC v6 PATCH 2/2] mm: mmap: zap pages with read mmap_sem in munmap

On Mon 06-08-18 13:48:35, Yang Shi wrote: > > > On 8/6/18 1:41 PM, Michal Hocko wrote: > > On Mon 06-08-18 09:46:30, Yang Shi wrote: > > > > > > On 8/6/18 2:40 AM, Michal Hocko wrote: > > > > On Fri 03-08-18 14:01:58, Yang Shi wrote: > > > > > On 8/3/18 2:07 AM, Michal Hocko wrote: > > > > > > O

Re: [RFC v6 PATCH 2/2] mm: mmap: zap pages with read mmap_sem in munmap

On 8/6/18 1:41 PM, Michal Hocko wrote: On Mon 06-08-18 09:46:30, Yang Shi wrote: On 8/6/18 2:40 AM, Michal Hocko wrote: On Fri 03-08-18 14:01:58, Yang Shi wrote: On 8/3/18 2:07 AM, Michal Hocko wrote: On Fri 27-07-18 02:10:14, Yang Shi wrote: [...] If the vma has VM_LOCKED | VM_HUGETLB

Re: [RFC v6 PATCH 2/2] mm: mmap: zap pages with read mmap_sem in munmap

On Mon 06-08-18 09:46:30, Yang Shi wrote: > > > On 8/6/18 2:40 AM, Michal Hocko wrote: > > On Fri 03-08-18 14:01:58, Yang Shi wrote: > > > > > > On 8/3/18 2:07 AM, Michal Hocko wrote: > > > > On Fri 27-07-18 02:10:14, Yang Shi wrote: [...] > > > > > If the vma has VM_LOCKED | VM_HUGETLB | VM_PFN

Re: [RFC v6 PATCH 2/2] mm: mmap: zap pages with read mmap_sem in munmap

On 8/6/18 2:40 AM, Michal Hocko wrote: On Fri 03-08-18 14:01:58, Yang Shi wrote: On 8/3/18 2:07 AM, Michal Hocko wrote: On Fri 27-07-18 02:10:14, Yang Shi wrote: When running some mmap/munmap scalability tests with large memory (i.e. 300GB), the below hung task issue may happen occasional

Re: [RFC v6 PATCH 2/2] mm: mmap: zap pages with read mmap_sem in munmap

On Fri 03-08-18 14:01:58, Yang Shi wrote: > > > On 8/3/18 2:07 AM, Michal Hocko wrote: > > On Fri 27-07-18 02:10:14, Yang Shi wrote: > > > When running some mmap/munmap scalability tests with large memory (i.e. > > > > 300GB), the below hung task issue may happen occasionally. > > > INFO: task ps

Re: [RFC v6 PATCH 2/2] mm: mmap: zap pages with read mmap_sem in munmap

On 8/3/18 2:07 AM, Michal Hocko wrote: On Fri 27-07-18 02:10:14, Yang Shi wrote: When running some mmap/munmap scalability tests with large memory (i.e. 300GB), the below hung task issue may happen occasionally. INFO: task ps:14018 blocked for more than 120 seconds. Tainted: G

Re: [RFC v6 PATCH 2/2] mm: mmap: zap pages with read mmap_sem in munmap

On Fri 27-07-18 02:10:14, Yang Shi wrote: > When running some mmap/munmap scalability tests with large memory (i.e. > > 300GB), the below hung task issue may happen occasionally. > > INFO: task ps:14018 blocked for more than 120 seconds. >Tainted: GE 4.9.79-009.ali3000.alios7.x

Re: [RFC v6 PATCH 2/2] mm: mmap: zap pages with read mmap_sem in munmap

On 7/27/18 1:15 AM, Laurent Dufour wrote: On 26/07/2018 20:10, Yang Shi wrote: When running some mmap/munmap scalability tests with large memory (i.e. 300GB), the below hung task issue may happen occasionally. INFO: task ps:14018 blocked for more than 120 seconds. Tainted: G

Re: [RFC v6 PATCH 2/2] mm: mmap: zap pages with read mmap_sem in munmap

On 26/07/2018 20:10, Yang Shi wrote: > When running some mmap/munmap scalability tests with large memory (i.e. >> 300GB), the below hung task issue may happen occasionally. > > INFO: task ps:14018 blocked for more than 120 seconds. >Tainted: GE 4.9.79-009.ali3000.alios7.x86_64

Re: [RFC v6 PATCH 2/2] mm: mmap: zap pages with read mmap_sem in munmap

On 7/26/18 11:34 AM, Mika Penttilä wrote: On 26.07.2018 21:10, Yang Shi wrote: When running some mmap/munmap scalability tests with large memory (i.e. 300GB), the below hung task issue may happen occasionally. INFO: task ps:14018 blocked for more than 120 seconds. Tainted: G

Re: [RFC v6 PATCH 2/2] mm: mmap: zap pages with read mmap_sem in munmap

On 26.07.2018 21:10, Yang Shi wrote: > When running some mmap/munmap scalability tests with large memory (i.e. >> 300GB), the below hung task issue may happen occasionally. > INFO: task ps:14018 blocked for more than 120 seconds. >Tainted: GE 4.9.79-009.ali3000.alios7.x86_64

[RFC v6 PATCH 2/2] mm: mmap: zap pages with read mmap_sem in munmap

When running some mmap/munmap scalability tests with large memory (i.e. > 300GB), the below hung task issue may happen occasionally. INFO: task ps:14018 blocked for more than 120 seconds. Tainted: GE 4.9.79-009.ali3000.alios7.x86_64 #1 "echo 0 > /proc/sys/kernel/hung_task_timeo