Re: [PATCH v2 00/11] Introduces new count-based method for monitoring lockless pagetable wakls

2019-09-24 Thread Leonardo Bras
John Hubbard writes: > Also, which tree do these patches apply to, please? I will send a v3 that applies directly over v5.3, and make sure to include mm mailing list. Thanks! signature.asc Description: This is a digitally signed message part

Re: [PATCH v2 00/11] Introduces new count-based method for monitoring lockless pagetable wakls

2019-09-23 Thread Leonardo Bras
On Mon, 2019-09-23 at 13:51 -0700, John Hubbard wrote: > Also, which tree do these patches apply to, please? > > thanks, They should apply on top of v5.3 + one patch: https://patchwork.ozlabs.org/patch/1164925/ I was working on top of this patch, because I thought it would be merged fast. But

Re: [PATCH v2 00/11] Introduces new count-based method for monitoring lockless pagetable wakls

2019-09-20 Thread Leonardo Bras
If a process (qemu) with a lot of CPUs (128) try to munmap() a large chunk of memory (496GB) mapped with THP, it takes an average of 275 seconds, which can cause a lot of problems to the load (in qemu case, the guest will lock for this time). Trying to find the source of this bug, I found out

Re: [PATCH v2 00/11] Introduces new count-based method for monitoring lockless pagetable wakls

2019-09-20 Thread Leonardo Bras
On Fri, 2019-09-20 at 16:50 -0300, Leonardo Bras wrote: > *** BLURB HERE *** Sorry, something gone terribly wrong with my cover letter. I will try to find it and send here, or rewrite it. Best regards, signature.asc Description: This is a digitally signed message part

[PATCH v2 00/11] Introduces new count-based method for monitoring lockless pagetable wakls

2019-09-20 Thread Leonardo Bras
*** BLURB HERE *** Leonardo Bras (11): powerpc/mm: Adds counting method to monitor lockless pgtable walks asm-generic/pgtable: Adds dummy functions to monitor lockless pgtable walks mm/gup: Applies counting method to monitor gup_pgd_range powerpc/mce_power: Applies counting method to