On 06.12.24 19:26, William Roche wrote:
On 12/3/24 16:00, David Hildenbrand wrote:
On 03.12.24 15:39, William Roche wrote:
[...]
Our new Qemu code is testing first the fallocate+MADV_DONTNEED procedure
for standard sized pages (in ram_block_discard_range()) and only folds
back to the mmap() use
On 12/3/24 16:00, David Hildenbrand wrote:
On 03.12.24 15:39, William Roche wrote:
[...]
Our new Qemu code is testing first the fallocate+MADV_DONTNEED procedure
for standard sized pages (in ram_block_discard_range()) and only folds
back to the mmap() use if it fails. So maybe my proposal to imp
On 03.12.24 15:39, William Roche wrote:
On 12/3/24 15:08, David Hildenbrand wrote:
[...]
Let me take a look at your tool below if I can find an explanation of
what is happening, because it's weird :)
[...]
At the end of this email, I included the source code of a simplistic
test case that s
On 12/3/24 15:08, David Hildenbrand wrote:
[...]
Let me take a look at your tool below if I can find an explanation of
what is happening, because it's weird :)
[...]
At the end of this email, I included the source code of a simplistic
test case that shows that the page is replaced in the c
On 03.12.24 01:15, William Roche wrote:
On 12/2/24 17:00, David Hildenbrand wrote:
On 02.12.24 16:41, William Roche wrote:
Hello David,
Hi,
sorry for reviewing yet, I was rather sick the last 1.5 weeks.
I hope you get well soon!
Getting there, thanks! :)
I've finally tested many page
On 12/2/24 17:00, David Hildenbrand wrote:
On 02.12.24 16:41, William Roche wrote:
Hello David,
Hi,
sorry for reviewing yet, I was rather sick the last 1.5 weeks.
I hope you get well soon!
I've finally tested many page mapping possibilities and tried to
identify the error injection reacti
Hello David,
I've finally tested many page mapping possibilities and tried to
identify the error injection reaction on these pages to see if mmap()
can be used to recover the impacted area.
I'm using the latest upstream kernel I have for that:
6.12.0-rc7.master.20241117.ol9.x86_64
But I also g
On 02.12.24 16:41, William Roche wrote:
Hello David,
Hi,
sorry for reviewing yet, I was rather sick the last 1.5 weeks.
I've finally tested many page mapping possibilities and tried to
identify the error injection reaction on these pages to see if mmap()
can be used to recover the impacted
From: William Roche
Hi David,
Here is an new version of our code, but I still need to double check
the mmap behavior in case of a memory error impact on:
- a clean page of an empty file or populated file
- already mapped using MAP_SHARED or MAP_PRIVATE
to see if mmap() can recover the area or no
