Thiemo Seufer wrote: > Vorobiev Dmitri wrote: >> Theodore Tso wrote: >>> If you really insist I suppose we could have a MIPS specific patch >>> where we allocate a 4k page and zero it, so we can use it from our >>> kernel code because you don't want to export and make available the >>> ZERO_PAGE that gets used by the rest of the kernel, but that seems >>> awfully silly, and would be a waste of 4k of memory..... Someone from >>> MIPS land would have to test it, as well, as I dont think any of the >>> ext4 developers have access to a MIPS platform. >> Ted, Ralf seems to be unwilling to accept the ZERO_PAGE() export. If you >> send the MIPS-specific patch, I can do the testing for you as I have a >> MIPS Malta board at my disposal. > > AFAIU the problematic case are systems with R4000/R4400 SC/MC CPUs > since they use 8 zero pages of different color. Have a look at > arch/mips/mm/init.c:setup_zero_pages. OK, thanks for the info. However, I won't be able to tackle into the issue during this and the next week as I'm having a business trip. Therefore, if the issue is urgent, I'd be grateful if someone could take over. Thanks, Dmitri
