Richard Henderson <richard.hender...@linaro.org> writes: > On 4/1/24 10:39, Sven Schnelle wrote: >> Richard Henderson <richard.hender...@linaro.org> writes: >>>> For unknown reasons, Java 1.5 on 64-bit HP-UX 11.11 does signed >>>> computation of the new IAOQ value in the signal handler. In the >>>> current code these bits are not masked when returning to narrow >>>> mode, causing java to crash. >>>> Signed-off-by: Sven Schnelle <sv...@stackframe.org> >> INT 3530: instruction tlb miss fault @ 0000000000000000:ffffffffc0000007 >> for 0000000000000000:40000000c0000004 >> INT 3531: external interrupt @ 0000000000000000:ffffffffc0000007 for >> 0000000000000000:40000000c0000004 >> INT 3532: instruction tlb miss fault @ 0000000000000000:ffffffffc0000007 >> for 0000000000000000:40000000c0000004 >> INT 3533: external interrupt @ 0000000000000000:ffffffffc0000007 for >> 0000000000000000:40000000c0000004 >> So the PSW indicates narrow mode, but IAOQ seems to contain all the >> ffff... bits. > > I believe that the IAOQ *should* contain all of the bits. The bits > should only be discarded when we form the GVA -- exactly like "ldb > 0(r2)", where r2 contains all of the offset bits. In particular, I > believe that "b,l .+8,r2" should copy all of those bits to r2 from > IAOQ_Back+4 and the fact that mainline crops those bits is a bug. > > >> Also interesting is that the second TLB miss (INT 3530) >> misses the Space ID. > > That is a bit curious, yes. > >> Any thoughts? Otherwise i need to investigate and make a wrong patch >> again :-) >> The only patch i have on top which touches target/hppa is the space >> id >> hashing mask patch: > > Ok. I do have an hppa 11.11 iso -- for clarity, what is your command-line?
I'm using: ./build/qemu-system-hppa -M C3700 -m 1024 -cdrom /home/svens/parisc/hpux/11.11/HP-UX 11.11 (2004-12) - TCOE - Core OS, Install and Recovery - DVD.iso -bios /home/svens/seabios-hppa/out-64/hppa-firmware64.img -nographic -hda /home/svens/parisc/hpux1111.img -boot d The qemu i'm using is: https://github.com/svenschnelle/qemu/tree/devel You also need a special seabios-hppa version, because a special console driver is needed: https://github.com/hdeller/seabios-hppa/tree/devel
