ti-glsdk_dra7xx-evm_7_03_00_03: 在kernel里不能保留0x85a000000开始的物理内存

我在kernel里面保留了一段内存(0x85a00000, 这段内存是ipu1写入，然后，a15读取的)，但是一旦这么做，kernel就会遇到各种问题，最终挂掉了。

请问这是为什么呢

Shine：

请问用的是哪款器件？

Zhonghua Ke：

回复 Shine:

jacinto6.

我在dts中保留内存：

ipu1video_rev: ipu1video_rev@85a00000 { reg = <0x85a00000 0xAE0000>; status = "okay"; };

因为这一块是IPU1要用的，如果不保留起来会被malloc分配到，数据就被IPU1踩掉了。

然而，内存保留成功会，系统就起不来了：

udevd[1131]: worker [1136] terminated by signal 11 (Segmentation fault)

udevd[1131]: worker [1136] failed while handling '/devices/44000000.ocp/48880000.omap_dwc3_1/48890000.usb/xhci-hcd.0.auto/usb1/1-1/1-1.2/1-1.2:1.0/host1/target1:0:0/1:0:0:0'

[ 7.354244] EXT4-fs (sda2): re-mounted. Opts: (null)

[ 7.372253] EXT4-fs error (device sda2): ext4_iget:4095: inode #104: comm S07bootlogd: bad extra_isize (8217 != 256)[ 7.408641] random: dd urandom read with 61 bits of entropy available[ 7.476714] EXT4-fs error (device sda2): ext4_lookup:1429: inode #131: comm sh: deleted inode referenced: 146[ 7.487204] EXT4-fs error (device sda2): ext4_lookup:1429: inode #131: comm sh: deleted inode referenced: 146[ 7.499945] EXT4-fs error (device sda2): ext4_lookup:1429: inode #131: comm ln: deleted inode referenced: 146[ 7.510513] EXT4-fs error (device sda2): ext4_lookup:1429: inode #131: comm ln: deleted inode referenced: 146[ 7.520874] EXT4-fs error (device sda2): ext4_lookup:1429: inode #131: comm ln: deleted inode referenced: 146ln: /var/lock: Input/output error[ 7.547551] EXT4-fs error (device sda2): ext4_iget:4095: inode #143: comm sh: bad extra_isize (325 != 256)[ 7.557740] EXT4-fs error (device sda2): ext4_iget:4095: inode #143: comm sh: bad extra_isize (325 != 256)[ 7.570168] EXT4-fs error (device sda2): ext4_iget:4095: inode #143: comm ln: bad extra_isize (325 != 256)[ 7.580290] EXT4-fs error (device sda2): ext4_iget:4095: inode #143: comm ln: bad extra_isize (325 != 256)ln: /var/tmp: Input/output errormkdir: can't create directory '/var/lock/': Input/output errorchmod: /var/lock/subsys: Input/output error/etc/init.d/rc: line 45: 1387 Segmentation fault ( trap – INT QUIT TSTP; scriptname=$1; shift; . $scriptname )

Shine：

回复 Zhonghua Ke:

jacinto6器件论坛不支持，既然你已经在用了，可以找你的TI销售获取技术支持。

Zhonghua Ke：

回复 Shine:

感觉这好像跟器件没有关系。

好吧，还是谢谢你