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Re: [Qemu-devel] [PATCH 0/6] Drop the irredeemably racy cpu_unlink_tb()

From: Michael Tokarev
Subject: Re: [Qemu-devel] [PATCH 0/6] Drop the irredeemably racy cpu_unlink_tb()
Date: Thu, 09 May 2013 14:05:14 +0400
User-agent: Mozilla/5.0 (X11; Linux i686 on x86_64; rv:17.0) Gecko/17.0 Icedove/17.0

09.05.2013 13:01, Peter Maydell wrote:
> On 9 May 2013 09:09, Michael Tokarev <address@hidden> wrote:
>> Now, the resulting thing compiles (ha!), but I'm not
>> really sure how to test it.  I ran a few random apps
>> using qemu-i386 and qemu-arm, it appears to work.
> You need to test TCG system emulation too, and in
> particular something with multiple guest CPU cores.

As suggested on IRC, I ran a proposed omp testcase (in
LP:668799) in a armel chroot created by the same
patched qemu-arm-static, with 6 and 60 threads, and
tried running a few java binaries I've found -- that
works well from creating system to building and running
testcases.  I also tried the same with qemu-system-i386
(without kvm), installing a system using patched qemu,
and running multi-threaded apps in it.

At least I don't see any obvious new breakages due to
my backport, but I can definitely go further than with
unpatched qemu.

So this is at least promising, so far... ;)



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