Ploop hands off bio processing to its kernel thread. This might result
to a dead lock as described below:
1. Several processes performing memcg reclaim isolate a bunch of
reclaimable pages and all get stuck in shrink_page_list waiting for
a page writeback to finish. Page writeback is up
On Thu, Nov 26, 2015 at 06:08:25PM +0300, Vladimir Davydov wrote:
> mmap_region workflow regarding locked pages was changed during rebase
> from RH6 to RH7. The patch porting locked pages accounting did not allow
> for that.
>
> Presumably, this should fix UB_LOCKEDPAGES leak on CT stop:
>
>
mmap_region workflow regarding locked pages was changed during rebase
from RH6 to RH7. The patch porting locked pages accounting did not allow
for that.
Presumably, this should fix UB_LOCKEDPAGES leak on CT stop:
Ub 101 helds 8 in lockedpages on put
UB: leaked beancounter 101
Kirill, please review.
--
Best regards,
Konstantin Khorenko,
Virtuozzo Linux Kernel Team
On 11/25/2015 06:42 PM, Vladimir Davydov wrote:
The comment to shrink_slab states that the portion of kmem objects
scanned by it equals the portion of lru pages scanned by shrink_zone
over
Kirill, please review.
--
Best regards,
Konstantin Khorenko,
Virtuozzo Linux Kernel Team
On 11/26/2015 06:08 PM, Vladimir Davydov wrote:
mmap_region workflow regarding locked pages was changed during rebase
from RH6 to RH7. The patch porting locked pages accounting did not allow
for that.
