Ubuntu
linux package

  1. Disco (19.04)
  2. Bug #1823753
  3. Comment #4

Comment 4 for bug 1823753

Revision history for this message
dann frazier (dannf) wrote :

I enabled CMA_DEBUG & CMA_DEBUGFS and booted w/ cma=128M so that we can see the CMA state when no allocations fail.

root@d06-4:/sys/kernel/debug/cma/cma-reserved# cat count
32768
root@d06-4:/sys/kernel/debug/cma/cma-reserved# cat used
15630

Looks like we're actually using ~61M - and perhaps the alignment requirements are pushing us over the 64M barrier (cma=64M still results in some cma_alloc failures).