On (02/26/19 19:24), Tetsuo Handa wrote: > Does memory allocation by network stack / driver while trying to emit > the messages include __GFP_DIRECT_RECLAIM flag (e.g. GFP_KERNEL) ? > Commit 400e22499dd92613821 handles only memory allocations with > __GFP_DIRECT_RECLAIM flag. If memory allocation when trying to emit > the messages does not include __GFP_DIRECT_RECLAIM flag (e.g. > GFP_ATOMIC / GFP_NOWAIT), doesn't this particular problem still exist? Console drivers are always called from atomic contexts (including IRQ->printk->console_driver paths); if any console driver does a GFP_KERNEL allocation then it should be fixed. -ss
