Working on workqueues
Working on workqueues
Posted Apr 20, 2020 6:33 UTC (Mon) by jshen28 (guest, #127275)Parent article: Working on workqueues
> problems with writeback could create no end of trouble when the system is under memory pressure.
Could something help add some backgrounds to this line? thank you.
Posted Apr 20, 2020 10:15 UTC (Mon)
by Wol (subscriber, #4433)
[Link]
If you're short of memory, but you can't free up buffers (and memory) because you need a little bit of extra memory before you can flush said buffers ...
Cheers,
Working on workqueues
What I think "writeback" means is flushing stuff to disk. The problem with that, is that this sometimes requires allocating memory. CATCH 22!
Wol