On Tue, Aug 18, 2009 at 4:03 AM, <[email protected]> wrote: > Hi, > > I trying to allocate huge amount of memory >4GB (64bit) in LKM: > > kmalloc - has limit. > multiple kmalloc (about 2000) - kernel panic. > vmalloc - has limit (aswell as multiple vmalloc). > appending kernel parameter vmalloc=2048M - kernel panic on boot. > > So, is there the way to allocate huge amount of memory? > Haven't tried alloc_bootmem yet - is it the answer? > > kernel 2.6.24.5
How about HugeTLB? the one that will use 2MB or 4MB page size.... but I never read exactly which APIs you have to use. I also don't know whether the reserved virtual address space range is sufficient for your need, but since we're talking about 64 bit kernel here, I guess you have plenty of room. -- regards, Mulyadi Santosa Freelance Linux trainer blog: the-hydra.blogspot.com -- To unsubscribe from this list: send an email with "unsubscribe kernelnewbies" to [email protected] Please read the FAQ at http://kernelnewbies.org/FAQ
