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Re: [Qemu-devel] sorecvfrom freezes guest

From: Marc-André Lureau
Subject: Re: [Qemu-devel] sorecvfrom freezes guest
Date: Thu, 28 Feb 2019 12:14:45 +0100


On Thu, Feb 28, 2019 at 11:45 AM llyzs <address@hidden> wrote:
> Hi,
> I am having a guest freeze issue (win10), and through debugging I found out
> that sometimes sorecvfrom() is called from slirp.c because revents ==
> G_IO_IN, however inside sorecvfrom() function, ioctlsocket() returns 0
> bytes available and recvfrom could be blocking indefinitely. I am not sure
> the root cause of the situation, but I added a non-blocking check to
> recvfrom and it fixed my issue. My patch is as attached. Please check if
> this is a right fix.

Thank you for the patch.

Could you resend it inline, with the comment in the commit message?

Also add the subsystem maintainers in CC:

$ scripts/get_maintainer.pl -f slirp
Samuel Thibault <address@hidden> (maintainer:SLIRP)
Jan Kiszka <address@hidden> (maintainer:SLIRP)
address@hidden (open list:All patches CC here)

(see also https://wiki.qemu.org/Contribute/SubmitAPatch)

Marc-André Lureau

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