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Re: [Qemu-devel] [PATCH for-2.5] tcg: Increase the highwater reservation


From: Aurelien Jarno
Subject: Re: [Qemu-devel] [PATCH for-2.5] tcg: Increase the highwater reservation
Date: Fri, 4 Dec 2015 09:36:33 +0100
User-agent: Mutt/1.5.24 (2015-08-30)

On 2015-12-03 13:19, Aurelien Jarno wrote:
> On 2015-12-02 10:36, Richard Henderson wrote:
> > On 12/01/2015 08:32 AM, Aurelien Jarno wrote:
> > >On 2015-12-01 08:19, Richard Henderson wrote:
> > >>If there are a lot of guest memory ops in the TB, the amount of
> > >>code generated by tcg_out_tb_finalize could be well more than 1k.
> > >>In the short term, increase the reservation larger than any TB
> > >>seen in practice.
> > >>
> > >>Reported-by: Aurelien Jarno <address@hidden>
> > >>Signed-off-by: Richard Henderson <address@hidden>
> > >
> > >Thanks! I was testing the same patch locally after our discussion, and I
> > >confirm it fixes the issue.
> > 
> > Here's the proper patch for 2.6.  If you'd like to run it through your same
> > tests, please?
> 
> The patch looks fine to me, the only tiny nitpick I have is that you can
> return a bool instead of a hint.
> 
> I am currently testing it (which is basically running a glibc build and
> testsuite multiple time in a VM), I'll let you know the result by
> tomorrow. In the meantime, you can add:
> 
> Reviewed-by: Aurelien Jarno <address@hidden>

I haven't seen any crash so far, which is more time than it usually
needs to trigger the issue. So I guess we can consider that the patch is
correct. Therefore:

Tested-by: Aurelien Jarno <address@hidden>

-- 
Aurelien Jarno                          GPG: 4096R/1DDD8C9B
address@hidden                 http://www.aurel32.net



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