From: Anthony Liguori <anthony@codemonkey.ws>
To: Paolo Bonzini <pbonzini@redhat.com>
Cc: Kevin Wolf <kwolf@redhat.com>,
Anthony Liguori <aliguori@us.ibm.com>,
Venkateswararao Jujjuri <jvrao@linux.vnet.ibm.com>,
Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>,
qemu-devel@nongnu.org
Subject: Re: [Qemu-devel] [PATCH 1/2] coroutine: introduce coroutines
Date: Wed, 11 May 2011 07:51:33 -0500 [thread overview]
Message-ID: <4DCA8655.3070807@codemonkey.ws> (raw)
In-Reply-To: <4DCA7B64.7000900@redhat.com>
On 05/11/2011 07:04 AM, Paolo Bonzini wrote:
> On 05/11/2011 12:15 PM, Stefan Hajnoczi wrote:
>> +#ifdef __i386__
>> + asm volatile(
>> + "mov %%esp, %%ebx;"
>> + "mov %0, %%esp;"
>> + "pushl %1;"
>> + "call _trampoline;"
>> + "mov %%ebx, %%esp;"
>> + : : "r" (co->stack + co->stack_size), "r" (co) : "ebx"
>> + );
>
> This is incomplete, it should set FS:[4] and FS:[8] to top and bottom of
> stack respectively, otherwise exception handling (including SIGSEGV) is
> broken. But I think for Windows it's anyway better to use fibers. Commit
> this and either I or Stefan Weil will fix it. :)
>
> Acked-by: Paolo Bonzini <pbonzini@redhat.com>
How about a generic thread fallback? That's what we do in gtk-vnc and
it solves the portability issue in a very robust way.
Regards,
Anthony Liguori
>
> Paolo
>
next prev parent reply other threads:[~2011-05-11 12:51 UTC|newest]
Thread overview: 30+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-05-11 10:15 [Qemu-devel] [PATCH 0/2] Coroutines for better asynchronous programming Stefan Hajnoczi
2011-05-11 10:15 ` [Qemu-devel] [PATCH 1/2] coroutine: introduce coroutines Stefan Hajnoczi
2011-05-11 11:20 ` Kevin Wolf
2011-05-11 12:04 ` Paolo Bonzini
2011-05-11 12:15 ` Kevin Wolf
2011-05-11 12:51 ` Anthony Liguori [this message]
2011-05-11 12:52 ` Paolo Bonzini
2011-05-11 13:05 ` Anthony Liguori
2011-05-11 13:45 ` Paolo Bonzini
2011-05-11 13:51 ` Daniel P. Berrange
2011-05-24 19:37 ` Jamie Lokier
2011-05-24 19:58 ` Stefan Hajnoczi
2011-05-24 20:51 ` Jamie Lokier
2011-05-25 7:09 ` Stefan Hajnoczi
2011-05-25 18:54 ` Richard Henderson
2011-05-24 21:21 ` Anthony Liguori
2011-05-25 7:32 ` Paolo Bonzini
2011-05-24 21:22 ` Anthony Liguori
2011-05-25 11:43 ` Bastien ROUCARIES
2011-05-11 12:36 ` Anthony Liguori
2011-05-11 12:46 ` Paolo Bonzini
2011-05-11 12:54 ` Stefan Hajnoczi
2011-05-11 13:08 ` Kevin Wolf
2011-05-11 19:12 ` Stefan Weil
2011-05-12 7:59 ` Kevin Wolf
2011-05-12 9:51 ` Jan Kiszka
2011-05-12 9:59 ` Stefan Hajnoczi
2011-05-24 19:54 ` Jamie Lokier
2011-05-12 10:02 ` Kevin Wolf
2011-05-11 10:15 ` [Qemu-devel] [PATCH 2/2] coroutine: add check-coroutine automated tests Stefan Hajnoczi
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