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[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] Re: [Xen-devel] network hang
"full queue wasn't stopped" should never be printed. If you can
reproduce this message then it is worth printing some more info at th
esame point -- for example, np->tx->req_prod, np->tx->resp_prod,
np->tx_resp_cons. This will let us see whether the ring is indeed full.
If the network stack/driver has got itself into a state wher eit can print
this message, I'm not surprised it hangs for a while.
e.g., add this where that message gets printed in netfront.c:
{
unsigned long flags;
local_irq_save(flags);
printk(KERN_ALERT "full=%d req_prod=%08x rsp_prod=%08x"
"rsp_cons=%08x\n", np->tx_full, np->tx->req_prod,
np->tx->resp_prod, np->tx_resp_cons);
local_irq_restore(flags);
}
-- Keir
> I'm playing with nbd+raid1, and am finding that during a resync the network
> in xenU is dying and simply not sending packets anymore. At first I thought
> this was a bridging problem, but in xen0 I have removed the vif from the
> bridge and given it its own ip address, and given the eth interface in xenU a
> similar ip address, but no traffic is passing anymore.
>
> After a while though, it seemed to come good again and I was able to add the
> interface to the bridge again and it started working.
>
> The only strange thing in the kernel logs was this in xenU:
>
> eth0: full queue wasn't stopped!
>
> but i'm not sure at what point this was logged though.
>
> James
-=- MIME -=-
--_5CA9A503-EEF7-4FB1-8592-2E2052031B95_
Content-Type: text/plain;
charset="iso-8859-1"
Content-Transfer-Encoding: quoted-printable
I'm playing with nbd+raid1, and am finding that during a resync the network=
in xenU is dying and simply not sending packets anymore. At first I though=
t this was a bridging problem, but in xen0 I have removed the vif from the =
bridge and given it its own ip address, and given the eth interface in xenU=
a similar ip address, but no traffic is passing anymore.
After a while though, it seemed to come good again and I was able to add th=
e interface to the bridge again and it started working.
The only strange thing in the kernel logs was this in xenU:
eth0: full queue wasn't stopped!
but i'm not sure at what point this was logged though.
James
--_5CA9A503-EEF7-4FB1-8592-2E2052031B95_
Content-Type: text/html;
charset="iso-8859-1"
Content-Transfer-Encoding: quoted-printable
<HTML dir=3Dltr><HEAD></HEAD>
<BODY>
<DIV><FONT face=3DArial color=3D#000000 size=3D2>I'm playing with nbd+raid1=
, and am finding that during a resync the network in xenU is dying and simp=
ly not sending packets anymore. At first I thought this was a bridging prob=
lem, but in xen0 I have removed the vif from the bridge and given it its ow=
n ip address, and given the eth interface in xenU a similar ip address, but=
no traffic is passing anymore.</FONT></DIV>
<DIV><FONT face=3DArial size=3D2></FONT> </DIV>
<DIV><FONT face=3DArial size=3D2>After a while though, it seemed to come go=
od again and I was able to add the interface to the bridge again and it sta=
rted working.</FONT></DIV>
<DIV><FONT face=3DArial size=3D2></FONT> </DIV>
<DIV><FONT face=3DArial size=3D2>The only strange thing in the kernel logs =
was this in xenU:</FONT></DIV>
<DIV><FONT face=3DArial size=3D2></FONT> </DIV>
<DIV><FONT face=3DArial size=3D2>eth0: full queue wasn't stopped!<BR></DIV>=
</FONT>
<DIV><FONT face=3DArial size=3D2>but i'm not sure at what point this was lo=
gged though.</FONT></DIV>
<DIV><FONT face=3DArial size=3D2></FONT> </DIV>
<DIV><FONT face=3DArial size=3D2>James</FONT></DIV>
<DIV><FONT face=3DArial size=3D2></FONT> </DIV>
<DIV><FONT face=3DArial size=3D2></FONT> </DIV></BODY></HTML>
--_5CA9A503-EEF7-4FB1-8592-2E2052031B95_--
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