Ok, I think this is an oops, and since it's bisected down to the same
commit that some other oopses were bisected down to at boot-time, it's
probably the same thing: something is calling "netif_wake_queue()" without
having called "netif_start_queue()".
Or, to be more precise, in the case of suspending, something has probably
called "dev_deactivate()" because of a link event or something like that,
which seems to be a total piece-of-sh*t code that sets the qdisc back to
the "illegal" noop_qdisc (thus causing oopses if some qdisc event
happens), but does so *before* al the qdisc's have been quiesced (which it
must do - because otherwise they may keep coming), so the same problem
that plagued netif_wake_queue() will happen.
I don't really know the code very well (I'm waiting for David to fix up
the mess), but I can imagine that the appended patch may at least turn the
dead machine into a single warning and hopefully a working setup. Can you
please try?
Linus
---
net/core/dev.c | 3 ++-
1 files changed, 2 insertions(+), 1 deletions(-)
diff --git a/net/core/dev.c b/net/core/dev.c
index 2eed17b..43ab4f5 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -1325,7 +1325,8 @@ static void dev_queue_xmit_nit(struct sk_buff *skb, struct net_device *dev)
void __netif_schedule(struct Qdisc *q)
{
- BUG_ON(q == &noop_qdisc);
+ if (WARN_ON_ONCE(q == &noop_qdisc))
+ return;
if (!test_and_set_bit(__QDISC_STATE_SCHED, &q->state)) {
struct softnet_data *sd;
--
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