> I'm trying to relocate the bootwrapper from the default address > (0x400000) to a higher address (e.g. 0x800000) in order to support a > larger than 4MB initramfs. However the kernel panic when trying to > access the device tree blob which was relocated accordingly to a > higher address. The kernel message from __log_buf is shown below. > > The flat tree located at 0xbe4300 as the kerne message showed. Why > cannot the kernel access this area? No TLB set for this area? > > <1>Unable to handle kernel paging request for data at address 0xc0be4308 > <1>Faulting instruction address: 0xc01fdabc > <4>Oops: Kernel access of bad area, sig: 11 [#1]
Before the flat tree was accessed, I checked the DTLB and didn't find any entry related to 0xc0be4300. After the exception, I found the following DTLBs. 30 : 02 c0be4000 4KB ------ -> 00000000 31 : 00 fa000000 8MB VI-S-M -> fa000000 The DTLB#30 doesn't seem right. Why would it map to 0x0? I think this should be something like 00be4000? Thanks, -Shawn. _______________________________________________ Linuxppc-dev mailing list Linuxppc-dev@lists.ozlabs.org https://lists.ozlabs.org/listinfo/linuxppc-dev
