Re: [Qemu-devel] Improve QEMU performance with LLVM codegen and other techniques

[Max Filippov]

>  Misgenerated code might not be an issue now since we have tested our 
> framework
> in LLVM-only mode. I think the problem still is about the link/unlink stuff.
> The first problem I have while lowering the threshold is the broken one 
> generate
> a few traces (2, actually) that a work one doesn't. When boot the linux image
> downloaded from the QEMU website, the system hangs on the booting process (see
> attach if you're interested). Simply put, the system hangs after printing

There's no attachment in this mail. I can try to help you resolving it
if you provide more information.

>  ..TIMER: vector=0x31 apic1=0 pin1=2 apic2=-1 pin2=-1
>
> which turns out should be function check_timer (arch/i386/kernel/io_apic.c). I

If it hangs inside QEMU itself then you may try to backport commit
4f61927a41a098d06e642ffdea5fc285dc3a0e6b that fixes
infinite loop caused by hpet interrupt probing.

-- 
Thanks.
-- Max