Derrick Greenspan

icon indicating a website link https://derrickgreenspan.github.io/

icon company UCF icon location Winter Springs, Florida, USA icon location I am Derrick Greenspan. I have a PhD in Computer Science, and am a post-doctoral fellow at the University of Central Florida (UCF).

Results 6 comments of Derrick Greenspan

Snapshots do not work on DAX mmap()'d files without commenting out lines mm/memory.c:1549-1552

I now believe I understand the consequences of commenting that code out: snapshots will destroy mmap()'d DAX data. Commenting out `entry=pte_mkyoung(*pte)` and `entry=maybe_mkwrite(pte_mkdirty(entry, vma);` fixes that.

Snapshots do not work on DAX mmap()'d files without commenting out lines mm/memory.c:1549-1552

> Thanks for the findings. I guess the fix you suggested is not part of NOVA, right? So it is a workround? Yes, this fix is a workaround, not part...

Snapshots do not work on DAX mmap()'d files without commenting out lines mm/memory.c:1549-1552

Hmm. Is there any way you could try taking snapshots of mmap'd() data yourself and see if it works without modification? Has NOVA been used this way on actual persistent...

Snapshots do not work on DAX mmap()'d files without commenting out lines mm/memory.c:1549-1552

Ok, are there other maintaners working on NOVA who I could contact? Thank you! Derrick Greenspan MSCS PhD Graduate Research Assistant ________________________________ From: Andiry Xu ***@***.***> Sent: Tuesday, June 29,...

Dead lock contention for DAX-mmap page fault with snapshot taking

Am I mistaken, or is this still not resolved?

bar not filled for example clustered_stack

@naveedum -- unfortunately, it seems like that only works if you're running on MacOSX. On Linux, the solution is to build GNUplot 4.6 from https://sourceforge.net/projects/gnuplot/files/gnuplot/4.6.0/ . Place the resulting binary...