Jeff Dike writes:
 > Nikita@Namesys.COM said:
 > > pte_addr_t and CLOCK_TICK_RATE were undefined. 
 > 
 > Undefined WHERE?  You could send me a snippet of your build log.

Oops, sorry. See below.

 > 
 > > By the way, I am talking about Linus BK tree, rather than patches you
 > > have posted.
 > 
 > I would not have sent it to Linus if it didn't build.  Like I said, it builds
 > here fine.  I want to know where it breaks, so I can see it for myself, so
 > I can be sure the fix is right.
 > 

make[1]: Entering directory `/home/nikita/projects/2.5/scripts'
make[1]: Leaving directory `/home/nikita/projects/2.5/scripts'
make -C arch/um/sys-i386/util mk_sc
make[1]: Entering directory `/home/nikita/projects/2.5/arch/um/sys-i386/util'
make[1]: `mk_sc' is up to date.
make[1]: Leaving directory `/home/nikita/projects/2.5/arch/um/sys-i386/util'
  Generating include/linux/version.h (unchanged)
  Starting the build. KBUILD_BUILTIN=1 KBUILD_MODULES=
make[1]: Entering directory `/home/nikita/projects/2.5/init'
  gcc -Wp,-MD,./.main.o.d -D__KERNEL__ -I/home/nikita/projects/2.5/include -Wall -Wstrict-prototypes -Wno-trigraphs -O2  -fno-strict-aliasing -fno-common -g  -U__i386__ -Ui386 -D__arch_um__ -DSUBARCH=\"i386\" -D_LARGEFILE64_SOURCE -I/home/nikita/projects/2.5/arch/um/include -Derrno=kernel_errno -nostdinc -iwithprefix include    -DKBUILD_BASENAME=main   -c -o main.o main.c
In file included from /home/nikita/projects/2.5/include/linux/pagemap.h:7,
                 from /home/nikita/projects/2.5/include/linux/blkdev.h:9,
                 from /home/nikita/projects/2.5/include/linux/blk.h:4,
                 from main.c:25:
/home/nikita/projects/2.5/include/linux/mm.h:164: parse error before `pte_addr_t'
/home/nikita/projects/2.5/include/linux/mm.h:164: warning: no semicolon at end of struct or union
/home/nikita/projects/2.5/include/linux/mm.h:164: warning: no semicolon at end of struct or union
/home/nikita/projects/2.5/include/linux/mm.h:165: warning: type defaults to `int' in declaration of `pte'
/home/nikita/projects/2.5/include/linux/mm.h:165: warning: data definition has no type or storage class
/home/nikita/projects/2.5/include/linux/mm.h:182: parse error before `}'
In file included from /home/nikita/projects/2.5/include/linux/pagemap.h:7,
                 from /home/nikita/projects/2.5/include/linux/blkdev.h:9,
                 from /home/nikita/projects/2.5/include/linux/blk.h:4,
                 from main.c:25:
/home/nikita/projects/2.5/include/linux/mm.h: In function `put_page':
/home/nikita/projects/2.5/include/linux/mm.h:217: dereferencing pointer to incomplete type
/home/nikita/projects/2.5/include/linux/mm.h:217: dereferencing pointer to incomplete type
/home/nikita/projects/2.5/include/linux/mm.h:217: dereferencing pointer to incomplete type
/home/nikita/projects/2.5/include/linux/mm.h:217: dereferencing pointer to incomplete type
/home/nikita/projects/2.5/include/linux/mm.h: In function `page_zone':
/home/nikita/projects/2.5/include/linux/mm.h:282: dereferencing pointer to incomplete type
/home/nikita/projects/2.5/include/linux/mm.h:283: warning: control reaches end of non-void function
/home/nikita/projects/2.5/include/linux/mm.h: In function `set_page_zone':
/home/nikita/projects/2.5/include/linux/mm.h:287: dereferencing pointer to incomplete type
/home/nikita/projects/2.5/include/linux/mm.h:288: dereferencing pointer to incomplete type
/home/nikita/projects/2.5/include/linux/mm.h: In function `page_mapped':
/home/nikita/projects/2.5/include/linux/mm.h:331: dereferencing pointer to incomplete type
/home/nikita/projects/2.5/include/linux/mm.h:332: warning: control reaches end of non-void function
/home/nikita/projects/2.5/include/linux/mm.h: In function `set_page_dirty':
/home/nikita/projects/2.5/include/linux/mm.h:387: dereferencing pointer to incomplete type
/home/nikita/projects/2.5/include/linux/mm.h:390: dereferencing pointer to incomplete type
In file included from /home/nikita/projects/2.5/include/linux/pagemap.h:10,
                 from /home/nikita/projects/2.5/include/linux/blkdev.h:9,
                 from /home/nikita/projects/2.5/include/linux/blk.h:4,
                 from main.c:25:
/home/nikita/projects/2.5/include/linux/highmem.h: In function `kmap':
/home/nikita/projects/2.5/include/linux/highmem.h:23: arithmetic on pointer to an incomplete type
/home/nikita/projects/2.5/include/linux/highmem.h:23: arithmetic on pointer to an incomplete type
/home/nikita/projects/2.5/include/linux/highmem.h: In function `clear_user_highpage':
/home/nikita/projects/2.5/include/linux/highmem.h:36: arithmetic on pointer to an incomplete type
/home/nikita/projects/2.5/include/linux/highmem.h:36: arithmetic on pointer to an incomplete type
/home/nikita/projects/2.5/include/linux/highmem.h: In function `clear_highpage':
/home/nikita/projects/2.5/include/linux/highmem.h:43: arithmetic on pointer to an incomplete type
/home/nikita/projects/2.5/include/linux/highmem.h:43: arithmetic on pointer to an incomplete type
/home/nikita/projects/2.5/include/linux/highmem.h: In function `memclear_highpage_flush':
/home/nikita/projects/2.5/include/linux/highmem.h:58: arithmetic on pointer to an incomplete type
/home/nikita/projects/2.5/include/linux/highmem.h:58: arithmetic on pointer to an incomplete type
/home/nikita/projects/2.5/include/linux/highmem.h: In function `copy_user_highpage':
/home/nikita/projects/2.5/include/linux/highmem.h:69: arithmetic on pointer to an incomplete type
/home/nikita/projects/2.5/include/linux/highmem.h:69: arithmetic on pointer to an incomplete type
/home/nikita/projects/2.5/include/linux/highmem.h:70: arithmetic on pointer to an incomplete type
/home/nikita/projects/2.5/include/linux/highmem.h:70: arithmetic on pointer to an incomplete type
In file included from /home/nikita/projects/2.5/include/linux/blkdev.h:9,
                 from /home/nikita/projects/2.5/include/linux/blk.h:4,
                 from main.c:25:
/home/nikita/projects/2.5/include/linux/pagemap.h: In function `___add_to_page_cache':
/home/nikita/projects/2.5/include/linux/pagemap.h:69: dereferencing pointer to incomplete type
/home/nikita/projects/2.5/include/linux/pagemap.h:70: dereferencing pointer to incomplete type
/home/nikita/projects/2.5/include/linux/pagemap.h:71: dereferencing pointer to incomplete type
/home/nikita/projects/2.5/include/linux/pagemap.h: In function `wait_on_page_locked':
/home/nikita/projects/2.5/include/linux/pagemap.h:95: dereferencing pointer to incomplete type
/home/nikita/projects/2.5/include/linux/pagemap.h:95: dereferencing pointer to incomplete type
/home/nikita/projects/2.5/include/linux/pagemap.h: In function `wait_on_page_writeback':
/home/nikita/projects/2.5/include/linux/pagemap.h:104: dereferencing pointer to incomplete type
/home/nikita/projects/2.5/include/linux/pagemap.h:104: dereferencing pointer to incomplete type
make[1]: *** [main.o] Error 1
make[1]: Leaving directory `/home/nikita/projects/2.5/init'
make: *** [init] Error 2

I am attaching .config

 > 				Jeff
 > 

Nikita.