Kernel build problem

[Keith Owens]

On Wed, 01 Sep 2004 07:07:15 -0700, 
"Vladimir G. Ivanovic" <vladimir at acm.org> wrote:
>Keith,
>
>Thanks for your quick response!
>
>1. Should I file a Fedora bug?

Waste of time.  RedHat do not want kdb in their trees.

>3. I'm now getting a different error:
>
>   gcc -Wp,-MD,kdb/modules/.kdbm_pg.o.d -nostdinc -iwithprefix include -D__KERNEL__ -Iinclude -Iinclude2 -I/usr/src/linux-2.6.8-1.533/include -I/usr/src/linux-2.6.8-1.533/kdb/modules -Ikdb/modules -Wall -Wstrict-prototypes -Wno-trigraphs -fno-strict-aliasing -fno-common -pipe -msoft-float -m32 -fno-builtin-sprintf -fno-builtin-log2 -fno-builtin-puts -mpreferred-stack-boundary=2 -march=pentium3 -fno-optimize-sibling-calls -I/usr/src/linux-2.6.8-1.533/include/asm-i386/mach-default -Iinclude/asm-i386/mach-default -O2 -g -Wdeclaration-after-statement  -DKBUILD_BASENAME=kdbm_pg -DKBUILD_MODNAME=kdbm_pg -c -o kdb/modules/kdbm_pg.o /usr/src/linux-2.6.8-1.533/kdb/modules/kdbm_pg.c
>   /usr/src/linux-2.6.8-1.533/kdb/modules/kdbm_pg.c: In function `kdbm_show_page':
>   /usr/src/linux-2.6.8-1.533/kdb/modules/kdbm_pg.c:284: error: `PG_maplock' undeclared (first use in this function)
>   /usr/src/linux-2.6.8-1.533/kdb/modules/kdbm_pg.c:284: error: (Each undeclared identifier is reported only once
>   /usr/src/linux-2.6.8-1.533/kdb/modules/kdbm_pg.c:284: error: for each function it appears in.)
>
>The only occurrence of PG_maplock is on line 284 of kdbm_pg.c. Should I
>be using a v4.4-2.6.8 patch instead?

One of the Fedora patches has deleted PG_maplock from
include/linux/page-flags.h.  Comparing 2.6.8 with FC3 shows these
differences.

--- 2.6.8/include/linux/page-flags.h
+++ FC3/include/linux/page-flags.h
@@ -69,14 +69,11 @@
 #define PG_private		12	/* Has something at ->private */
 #define PG_writeback		13	/* Page is under writeback */
 #define PG_nosave		14	/* Used for system suspend/resume */
-#define PG_maplock		15	/* Lock bit for rmap to ptes */
+#define PG_compound		15	/* Part of a compound page */
 
 #define PG_swapcache		16	/* Swap page: swp_entry_t in private */
 #define PG_mappedtodisk		17	/* Has blocks allocated on-disk */
 #define PG_reclaim		18	/* To be reclaimed asap */
-#define PG_compound		19	/* Part of a compound page */
-
-#define PG_anon			20	/* Anonymous: anon_vma in mapping */
 
 
 /*
@@ -236,6 +233,7 @@
 #define PageReserved(page)	test_bit(PG_reserved, &(page)->flags)
 #define SetPageReserved(page)	set_bit(PG_reserved, &(page)->flags)
 #define ClearPageReserved(page)	clear_bit(PG_reserved, &(page)->flags)
+#define __ClearPageReserved(page)	__clear_bit(PG_reserved, &(page)->flags)
 
 #define SetPagePrivate(page)	set_bit(PG_private, &(page)->flags)
 #define ClearPagePrivate(page)	clear_bit(PG_private, &(page)->flags)
@@ -292,10 +290,6 @@
 #define SetPageCompound(page)	set_bit(PG_compound, &(page)->flags)
 #define ClearPageCompound(page)	clear_bit(PG_compound, &(page)->flags)
 
-#define PageAnon(page)		test_bit(PG_anon, &(page)->flags)
-#define SetPageAnon(page)	set_bit(PG_anon, &(page)->flags)
-#define ClearPageAnon(page)	clear_bit(PG_anon, &(page)->flags)
-
 #ifdef CONFIG_SWAP
 #define PageSwapCache(page)	test_bit(PG_swapcache, &(page)->flags)
 #define SetPageSwapCache(page)	set_bit(PG_swapcache, &(page)->flags)


You will have to adjust the kdb code to compensate.  It is a pity that
RedHat do not want kdb, it means that RH users have a lot of trouble
trying to debug their systems.  OTOH SuSE are happy to include kdb in
their distributions.

---------------------------
Use http://oss.sgi.com/ecartis to modify your settings or to unsubscribe.