Hi All, I recently changed the kernel for my arm9 based system from linux 2.6.21 to linux 3.6.8. I then applied the patch as suggested in the Readme document. now, when I select the YAFFS2 package with the kernel configuration and compile I get the error message and I am not able to do any thing further. site used to download yaffs2... *it clone git://www.aleph1.co.uk/yaffs2* messages capturing the compilation error. esslsdk@esslsdk-desktop:~/linux_kernel/linux-3.6.8_newyffs$ make scripts/kconfig/conf --silentoldconfig Kconfig CHK include/linux/version.h CHK include/generated/utsrelease.h make[1]: `include/generated/mach-types.h' is up to date. CALL scripts/checksyscalls.sh CHK include/generated/compile.h CHK kernel/config_data.h CC fs/yaffs2/yaffs_ecc.o CC fs/yaffs2/yaffs_vfs.o fs/yaffs2/yaffs_vfs.c:438: warning: initialization from incompatible pointer type fs/yaffs2/yaffs_vfs.c:439: warning: initialization from incompatible pointer type fs/yaffs2/yaffs_vfs.c:443: warning: initialization from incompatible pointer type fs/yaffs2/yaffs_vfs.c:445: warning: initialization from incompatible pointer type fs/yaffs2/yaffs_vfs.c:478: error: unknown field 'write_super' specified in initializer fs/yaffs2/yaffs_vfs.c:478: warning: initialization from incompatible pointer type fs/yaffs2/yaffs_vfs.c: In function 'yaffs_evict_inode': fs/yaffs2/yaffs_vfs.c:873: error: implicit declaration of function 'end_writeback' fs/yaffs2/yaffs_vfs.c: In function 'yaffs_do_sync_fs': fs/yaffs2/yaffs_vfs.c:2203: error: 'struct super_block' has no member named 's_dirt' fs/yaffs2/yaffs_vfs.c:2214: error: 'struct super_block' has no member named 's_dirt' fs/yaffs2/yaffs_vfs.c:2216: error: 'struct super_block' has no member named 's_dirt' fs/yaffs2/yaffs_vfs.c: In function 'yaffs_put_super': fs/yaffs2/yaffs_vfs.c:2506: error: 'struct mtd_info' has no member named 'sync' fs/yaffs2/yaffs_vfs.c:2507: error: 'struct mtd_info' has no member named 'sync' fs/yaffs2/yaffs_vfs.c: In function 'yaffs_touch_super': fs/yaffs2/yaffs_vfs.c:2523: error: 'struct super_block' has no member named 's_dirt' fs/yaffs2/yaffs_vfs.c: In function 'yaffs_internal_read_super': fs/yaffs2/yaffs_vfs.c:2699: error: 'struct mtd_info' has no member named 'erase' fs/yaffs2/yaffs_vfs.c:2700: error: 'struct mtd_info' has no member named 'read' fs/yaffs2/yaffs_vfs.c:2701: error: 'struct mtd_info' has no member named 'write' fs/yaffs2/yaffs_vfs.c:2702: error: 'struct mtd_info' has no member named 'read_oob' fs/yaffs2/yaffs_vfs.c:2703: error: 'struct mtd_info' has no member named 'write_oob' fs/yaffs2/yaffs_vfs.c:2704: error: 'struct mtd_info' has no member named 'block_isbad' fs/yaffs2/yaffs_vfs.c:2705: error: 'struct mtd_info' has no member named 'block_markbad' fs/yaffs2/yaffs_vfs.c:2729: error: 'struct mtd_info' has no member named 'erase' fs/yaffs2/yaffs_vfs.c:2730: error: 'struct mtd_info' has no member named 'block_isbad' fs/yaffs2/yaffs_vfs.c:2731: error: 'struct mtd_info' has no member named 'block_markbad' fs/yaffs2/yaffs_vfs.c:2731: error: 'struct mtd_info' has no member named 'read' fs/yaffs2/yaffs_vfs.c:2731: error: 'struct mtd_info' has no member named 'write' fs/yaffs2/yaffs_vfs.c:2733: error: 'struct mtd_info' has no member named 'read_oob' fs/yaffs2/yaffs_vfs.c:2733: error: 'struct mtd_info' has no member named 'write_oob' fs/yaffs2/yaffs_vfs.c:2754: error: 'struct mtd_info' has no member named 'erase' fs/yaffs2/yaffs_vfs.c:2754: error: 'struct mtd_info' has no member named 'read' fs/yaffs2/yaffs_vfs.c:2754: error: 'struct mtd_info' has no member named 'write' fs/yaffs2/yaffs_vfs.c:2756: error: 'struct mtd_info' has no member named 'read_oob' fs/yaffs2/yaffs_vfs.c:2756: error: 'struct mtd_info' has no member named 'write_oob' fs/yaffs2/yaffs_vfs.c:2946: error: implicit declaration of function 'd_alloc_root' fs/yaffs2/yaffs_vfs.c:2946: warning: assignment makes pointer from integer without a cast fs/yaffs2/yaffs_vfs.c:2955: error: 'struct super_block' has no member named 's_dirt' make[2]: *** [fs/yaffs2/yaffs_vfs.o] Error 1 make[1]: *** [fs/yaffs2] Error 2 make: *** [fs] Error 2 Kindly let me know the workaround for this problem.I appreciate if any one can help me in fixing the problem. Ratheendran