On Mon, 2007-04-09 at 16:32 +0530, Vivek Kutal wrote: > On Mon, 2007-04-09 at 10:38 +0300, Tzahi Fadida wrote: > > Hi, > > Please CMIIW. > > On 32bit systems: > > Regarding ZONE_HIMEM which is 128MB virtual memory in size. > > With kmap you can address using this 128MB of virtual memory > > The upper 128MB is not just used for kmap.....that place is reserved for > vmalloc + kmap + fixed virtual address mapping. > Right.. > The window to map high memory using kmap is only 2MB. Depends, The kmap window is actually one PageTable, which may contain 1024/512 entries depending upon PAE extension enabled or not. which is again defined by LAST_PKMAP. cheers, sandeep -- To unsubscribe from this list: send an email with "unsubscribe kernelnewbies" to ecartis@xxxxxxxxxxxx Please read the FAQ at http://kernelnewbies.org/FAQ
