> > I'm tracking a problem that's leading me through DSI and DTLB miss > exceptions on an MPC8347 (e300c1 core), and I've come across an oddity > that I'm hoping someone can explain. > > When a DTLB Miss exception can't find a PTE for the virtual address being > written/read, it dummies up the SPRs for a DSI exception and then calls > directly into the DSI exception code. Just before the DTLB miss code > stores a value into DSISR it sets bit 2, which for a DSI exception is a > reserved bit and should be cleared. There's no comment on the code > (.../arch/powerpc/kernel/head_32.S line 619 of the 2.6.33-rc1 kernel). Can > anyone tell me why this bit is getting set?
Probably for generic handling in do_page_fault() Jocke _______________________________________________ Linuxppc-dev mailing list Linuxppc-dev@lists.ozlabs.org https://lists.ozlabs.org/listinfo/linuxppc-dev
