hi
thanks for taking the time to reply
Dr. David Alan Gilbert writes:
> > I suspect that this might be some problem on my side, as I couldn't
> > find any similar report (apart some old (qemu-2.8.50) threads, that
> > didn't help)
>
> Not necessarily; can you tell me:
> a) At what point does it fail - immediately when booting the guest?
> Some time during the boot? Later?
> b) What guest does it happen on?
a) the error happens almost immediately; I mean: when I run qemu from an
xterm, it doesn't even popup its window: it just dumps the error
message to the terminal and stops
b) the guest is an old windows XP OS; but, as I say above, all goes as
if qemu doesn't even load the OS image (at least this is my
impression)
Meantime, I have tried to (quick&dirty) disable the error
catching/asserting in i386/kvm.c:
install:41> diff ./qemu-3.1.0-rc1/target/i386/kvm.c.MSR_HACK
./qemu-3.1.0-rc1/target/i386/kvm.c
2205c2205
< if (ret < cpu->kvm_msr_buf->nmsrs) {
---
> if (1==0) {
2211c2211
< assert(ret == cpu->kvm_msr_buf->nmsrs);
---
> assert(1==1);
2524c2524
< if (ret < cpu->kvm_msr_buf->nmsrs) {
---
> if (1==0) {
2530c2530
< assert(ret == cpu->kvm_msr_buf->nmsrs);
---
> assert(1==1);
and that makes qemu start and work without apparent problems.
Of course, that is a crude and risky (I guess) workaround...
thanks again
ciao
-gabriele
