From: Amit Shah
If the host is slow in reading data or doesn't read data at all,
blocking write calls not only blocked the program that called write()
but the entire guest itself.
To overcome this, let's not block till the host signals it has given
back the virtio ring element we passed it. Ins
Hi,
On 10/19/2010 09:32 AM, Amit Shah wrote:
> On (Tue) Oct 19 2010 [09:23:00], Hans de Goede wrote:
3) This patch will cause processes filling the virtqueue fast enough to
block
to never wake up again, due to a missing waitqueue wakeup, see:
https://bugzilla.redhat.co
On (Tue) Oct 19 2010 [09:23:00], Hans de Goede wrote:
> >>3) This patch will cause processes filling the virtqueue fast enough to
> >>block
> >>to never wake up again, due to a missing waitqueue wakeup, see:
> >>https://bugzilla.redhat.com/show_bug.cgi?id=643750
> >
> >Doesn't happen in my
Hi,
On 10/19/2010 09:10 AM, Amit Shah wrote:
> On (Tue) Oct 19 2010 [08:55:16], Hans de Goede wrote:
>> Hi,
>>
>> On 10/19/2010 07:45 AM, Amit Shah wrote:
>>> If the host is slow in reading data or doesn't read data at all,
>>> blocking write calls not only blocked the program that called write()
On (Tue) Oct 19 2010 [08:57:43], Hans de Goede wrote:
> Hi,
>
> Ok replying to my own reply, because I misread the code.
>
> On 10/19/2010 08:55 AM, Hans de Goede wrote:
> >Hi,
> >
> >On 10/19/2010 07:45 AM, Amit Shah wrote:
> >>If the host is slow in reading data or doesn't read data at all,
> >
On (Tue) Oct 19 2010 [08:55:16], Hans de Goede wrote:
> Hi,
>
> On 10/19/2010 07:45 AM, Amit Shah wrote:
> >If the host is slow in reading data or doesn't read data at all,
> >blocking write calls not only blocked the program that called write()
> >but the entire guest itself.
> >
> >To overcome t
Hi,
Ok replying to my own reply, because I misread the code.
On 10/19/2010 08:55 AM, Hans de Goede wrote:
> Hi,
>
> On 10/19/2010 07:45 AM, Amit Shah wrote:
>> If the host is slow in reading data or doesn't read data at all,
>> blocking write calls not only blocked the program that called write()
Hi,
On 10/19/2010 07:45 AM, Amit Shah wrote:
> If the host is slow in reading data or doesn't read data at all,
> blocking write calls not only blocked the program that called write()
> but the entire guest itself.
>
> To overcome this, let's not block till the host signals it has given
> back the
If the host is slow in reading data or doesn't read data at all,
blocking write calls not only blocked the program that called write()
but the entire guest itself.
To overcome this, let's not block till the host signals it has given
back the virtio ring element we passed it. Instead, send the buf
