>>Did saved Os gp in SAL OS state somehow get overridden before >>ia64_set_kernel_registers prior to invocation of ia64_init_handler? >> >>I assume the following code (in ia64_set_kernel_registers ) >should restore >>correct GP value. >> >>ia64_set_kernel_registers: >> ... >> ;; >> ld8 r1=[temp4] // OS GP from SAL OS state > >Yes, but this gp value is physical address. >In the next line, gp is changed to virtual address. > >DATA_PA_TO_VA(r1,temp1) > >This macro just sets region7 bit, so gp value becomes region7 address. Ok, could you please confirm what is the value of r1 before DATA_PA_TO_VA(r1, temp1)? I guess we need to set r1 = __gp in ia64_set_kernel_registers. If not, this is a bug. Am I right? Thanks, Luming - To unsubscribe from this list: send the line "unsubscribe linux-ia64" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
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