From: "Alex Bennée" <alex.bennee@linaro.org>
To: Peter Maydell <peter.maydell@linaro.org>
Cc: QEMU Developers <qemu-devel@nongnu.org>,
Richard Henderson <rth@twiddle.net>
Subject: Re: [Qemu-devel] tcg/translate-all.c:169: tb_lock: Assertion `!have_tb_lock' failed when doing cpu_restore_state in usermode
Date: Tue, 10 Oct 2017 11:54:58 +0100 [thread overview]
Message-ID: <87y3oj9ssd.fsf@linaro.org> (raw)
In-Reply-To: <CAFEAcA92r=9F=1TTj3YznUSGZR_zzmThfPWvx=ryLjhJFmj__w@mail.gmail.com>
Peter Maydell <peter.maydell@linaro.org> writes:
> On 10 October 2017 at 10:53, Alex Bennée <alex.bennee@linaro.org> wrote:
>>
>> Peter Maydell <peter.maydell@linaro.org> writes:
>>
>>> Running the test program
>>> http://people.linaro.org/~peter.maydell/thumb-over-page
>>> (source at http://people.linaro.org/~peter.maydell/thumb-over-page.c)
>>> in the usermode emulator:
>>> ./build/x86/arm-linux-user/qemu-arm
>>> ~/linaro/qemu-misc-tests/thumb-over-page
>>
>> Does this fail when run via system mode as well?
>
> Nope, only usermode. (Makes sense, since the handle_cpu_signal()
> codepath is only used in usermode emulation.)
But surely system emulation has to deal with the same rolling over a
page issue. How is it's resolution different?
>
> thanks
> -- PMM
--
Alex Bennée
next prev parent reply other threads:[~2017-10-10 10:55 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-10-06 17:36 [Qemu-devel] tcg/translate-all.c:169: tb_lock: Assertion `!have_tb_lock' failed when doing cpu_restore_state in usermode Peter Maydell
2017-10-10 9:53 ` Alex Bennée
2017-10-10 10:07 ` Peter Maydell
2017-10-10 10:41 ` Paolo Bonzini
2017-10-10 10:52 ` Peter Maydell
2017-10-10 11:01 ` Paolo Bonzini
2017-10-10 10:54 ` Alex Bennée [this message]
2017-10-10 11:07 ` Peter Maydell
2017-11-03 16:11 ` Peter Maydell
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