On 5/3/19 7:44 PM, Pankaj Suryawanshi wrote: >> First possibility that comes to mind is that a usermodehelper got launched, and >> it then tried to fork with a very large active process image. Do we have any >> clues what was going on? Did a device get hotplugged? > > Yes,The system is android and it tries to allocate memory for video > player from CMA reserved memory using custom octl call for dma apis. The stacktrace doesn't look like a CMA allocation though. That would be doing alloc_contig_range(), not kmalloc(). Could be some CMA area setup issue? > Please let me know how to overcome this issues, or how to reduce > fragmentation of memory so that higher order allocation get suuceed ? > > Thanks >
