Re: [patch] Real-Time Preemption, -RT-2.6.10-rc1-mm2-V0.7.1

[Ingo Molnar]

* Mark_H_Johnson@xxxxxxxxxxxx <Mark_H_Johnson@xxxxxxxxxxxx> wrote:

> 1) ksoftirqd/0/3 is trying to acquire this lock:
>  [dfb5c8a4] {r:0,a:-1,&n->lock}
> .. held by:       ksoftirqd/1/    6 [dff886f0,   0]
> ... acquired at:  arp_solicit+0x167/0x230
> ... trying at:   neigh_update+0x2a/0x390
> 
> 2) ksoftirqd/1/6 is blocked on this lock:
>  [c03c8900] {r:1,a:-1,ptype_lock}
> .. held by:       ksoftirqd/0/    3 [dffe8020,   0]
> ... acquired at:  net_rx_action+0x8e/0x200

this is a weird one. Note how ptype_lock is not shown to be owned by
ksoftirqd/0/3:

> ------------------------------
> | showing all locks held by: |  (ksoftirqd/0/3 [dffe8020,   0]):
> ------------------------------
> 
> #001:             [d9044c30] {r:0,a:-1,&tp->rx_lock}
> ... acquired at:  rtl8139_poll+0x48/0x180 [8139too]

neither does ptype_lock show up in the other logs you sent.

	Ingo
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