昨天用linux2.6.38的內核，用NFS啓動，執行server_arm失敗，今天我仍是用NFS啓動，根文件系統不改，只換內核，linux
換成linux2.6.28.6ide
解壓友善提供的linux-2.6.28.6-20111212.tar.gz文件，工具
執行如下命令：url
[root@localhost linux-2.6.28.6]# cp config_mini6410_s70 .config我用的是s70的7寸屏，
而後執行spa
[root@localhost linux-2.6.28.6]# make menuconfig因爲個人攝像頭查過VID是0ac8，屬於中星微，因此我用中星微驅動查找工具，發現個人攝像頭屬於UVC，
不須要另外驅動，內核裏有集成，因此在內核裏檢查是否有選上便可。.net
Linux Kernel Configuration3d
->Device Driverscode
->Multimedia devicesserver
->Video capture adaptersblog
->V4L USB devices
->(*)USB Video Class(UVC)
[*]UVC input events device support
不知道怎麼查本身攝像頭VID的能夠看這裏點我進入。
另外放上中星微驅動查找工具點我打開（115）.
好了，編譯好生成zImage，燒進開發板，NFS啓動。
一樣執行./server_arm，出現如下內容：
[root@Lc-system /]# ./server_arm start 2.0... Unable to handle kernel NULL pointer dereference at virtual address 00000000 pgd = cf094000 [00000000] *pgd=5f04b031, *pte=00000000, *ppte=00000000 Internal error: Oops: 17 [#1] Modules linked in: CPU: 0 Not tainted (2.6.28.6-FriendlyARM #1) PC is at memcpy+0x48/0x330 LR is at s3c_fimc_v4l2_enum_fmt_vid_cap+0x40/0x50 pc : [<c02208c8>] lr : [<c02ec744>] psr: 80000013 sp : cf5d3a74 ip : 00000000 fp : cf5d3aac r10: c0671980 r9 : 00000001 r8 : c0405602 r7 : cf5cbf00 r6 : 00000000 r5 : cf5d3c78 r4 : c0671980 r3 : 00000000 r2 : ffffffc0 r1 : 00000000 r0 : cf5d3c78 Flags: Nzcv IRQs on FIQs on Mode SVC_32 ISA ARM Segment user Control: 00c5387d Table: 5f094008 DAC: 00000015 Process server_arm (pid: 887, stack limit = 0xcf5d2260) Stack: (0xcf5d3a74 to 0xcf5d4000) 3a60: cf5d3c78 00000000 cf5cbf00 3a80: c0405602 cf5d3c78 c0671980 c02ec744 c02ec704 cf5d3c78 c04a0b5c c0621608 3aa0: cf5d3b9c cf5d3ab0 c027a964 c02ec710 cf5d3ad4 cf5d3ac0 c0442890 c01110a4 3ac0: cf311910 cf311900 cf5d3aec cf5d3ad8 c042ee6c c0442880 cf311800 00000000 3ae0: cf5d3b04 cf5d3af0 00000000 c042adc4 cf5d3b14 cf5d3b00 c0442890 c01110a4 3b00: 00000000 cf311acc c063e744 3d137e0d cf5d3b74 cf5d3b20 c01382f4 c0136dc0 3b20: 00000044 cf5c0680 00000000 00000000 c063e770 00000001 c063f084 00000000 3b40: c063e744 c063e744 c04284dc 001200d2 c063f080 cf0870c0 00000000 00000002 3b60: cf266880 c063e744 cf5d3bdc cf5d3b78 c01386f8 cf5d3e30 cf245100 cf5cbf00 3b80: c027a33c 00000000 cf5d3c78 00000001 cf5d3d24 cf5d3ba0 c027fecc c027a348 3ba0: c06719e4 cf5d3bac 00000000 00000000 00000000 00000000 00000000 00000000 3bc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 3be0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 3c00: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 3c20: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 3c40: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 3c60: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 3c80: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 3ca0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 3cc0: 00000000 00000000 000000ac 00000004 00000000 00000000 00000000 00000000 3ce0: 00000000 00000000 00000000 00000000 00000000 00000000 000000d8 cf5d3e30 3d00: c04a0b5c c0621608 cf5cbf00 803c7601 00000000 c0671980 cf5d3d34 cf5d3d28 3d20: c0280f98 c027fd10 cf5d3e24 cf5d3d38 c027a44c c0280e58 000000f8 00000000 3d40: 000000fc 00000000 00000100 00000000 00000104 00000000 00000108 00000000 3d60: 0000010c 00000000 00000110 00000000 00000114 00000000 00000118 00000000 3d80: 0000011c 00000000 00000120 00000000 00000124 00000000 00000128 00000000 3da0: 0000012c 00000000 00000130 00000000 00000134 00000000 c0671998 c0671998 3dc0: cf5d3dec cf5d3dd0 c044161c c01278cc 00000001 c0671998 c0671980 c06719e4 3de0: cf5d3dfc cf5d3df0 c0441684 c0441584 cf5d3e24 cf5d3e00 c02eb1a4 cf5cbf00 3e00: 00000000 cf5d3e30 00000000 00000000 00000000 803c7601 cf5d3edc cf5d3e28 3e20: c027d788 c027a348 00000002 0011a10c 2d633373 636d6966 00000030 00000000 3e40: 00000000 00000000 00000000 00000000 00000029 00000002 00000000 00000000 3e60: 00000000 00000000 00000000 00000000 cf5d3e9c cf5d3e80 c0155bd0 c01546e0 3e80: 00000000 00000000 cf5d3ed8 00000003 cf5d3f64 cf5d3ea0 c0160f64 c0155ba0 3ea0: 00000003 c0226078 cf5d3efc cf5d3eb8 c00f4430 cf5cbf00 803c7601 00000000 3ec0: ce8ac6e0 c00edf28 cf5d2000 00000000 cf5d3eec cf5d3ee0 c027d8bc c027d604 3ee0: cf5d3f0c cf5d3ef0 c0162764 c027d8ac 00002000 cf5cbf00 0011a10c 0011a10c 3f00: cf5d3f7c cf5d3f10 c0162f30 c0162708 cf06baa4 cf06ba80 cf5cbf00 00000020 3f20: cf06bac0 00000004 cf5d3f44 cf5d3f38 c04428d8 c022aef4 cf5d3f64 cf5d3f48 3f40: c01546cc c04428d4 00000004 cf5c6000 cf5cbf00 cf5cbf00 0011a10c 803c7601 3f60: 00000004 c00edf28 cf5d2000 00000000 cf5d3fa4 cf5d3f80 c0162fc4 c0162b18 3f80: 00000005 00000000 0006fc5c 00000000 0006fcf4 00000036 00000000 cf5d3fa8 3fa0: c00edd80 c0162f90 0006fc5c 00000000 00000004 803c7601 0011a10c 00000004 3fc0: 0006fc5c 00000000 0006fcf4 00000036 00000000 00000000 00000000 be878cec 3fe0: 00000000 be878cd0 00008478 0008755c 20000010 00000004 00000000 00000000 Backtrace: [<c02ec704>] (s3c_fimc_v4l2_enum_fmt_vid_cap+0x0/0x50) from [<c027a964>] (__vide o_do_ioctl+0x628/0x32bc) r6:c0621608 r5:c04a0b5c r4:cf5d3c78 r3:c02ec704 [<c027a33c>] (__video_do_ioctl+0x0/0x32bc) from [<c027fecc>] (v4l1_compat_get_ca pabilities+0x1c8/0x268) [<c027fd04>] (v4l1_compat_get_capabilities+0x0/0x268) from [<c0280f98>] (v4l_com pat_translate_ioctl+0x14c/0x288) [<c0280e4c>] (v4l_compat_translate_ioctl+0x0/0x288) from [<c027a44c>] (__video_d o_ioctl+0x110/0x32bc) [<c027a33c>] (__video_do_ioctl+0x0/0x32bc) from [<c027d788>] (__video_ioctl2+0x1 90/0x2a8) [<c027d5f8>] (__video_ioctl2+0x0/0x2a8) from [<c027d8bc>] (video_ioctl2+0x1c/0x2 0) [<c027d8a0>] (video_ioctl2+0x0/0x20) from [<c0162764>] (vfs_ioctl+0x68/0x78) [<c01626fc>] (vfs_ioctl+0x0/0x78) from [<c0162f30>] (do_vfs_ioctl+0x424/0x478) r6:0011a10c r5:0011a10c r4:cf5cbf00 r3:00002000 [<c0162b0c>] (do_vfs_ioctl+0x0/0x478) from [<c0162fc4>] (sys_ioctl+0x40/0x64) [<c0162f84>] (sys_ioctl+0x0/0x64) from [<c00edd80>] (ret_fast_syscall+0x0/0x2c) r7:00000036 r6:0006fcf4 r5:00000000 r4:0006fc5c Code: ba000002 f5d1f03c f5d1f05c f5d1f07c (e8b151f8) ---[ end trace 3f864f512b6122f5 ]--- Segmentation fault
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