siftr LOR: PFil hook read/write mutex vs. tcp

[Sergey Kandaurov]

On 6 November 2010 20:27, Bruce Cran <bruce at cran.org.uk> wrote:
> 1st 0xffffffff80990308 PFil read/write mutex (PFil hook read/write
> mutex @ /usr/src/head/sys/net/pfil.c:77
> 2nd 0xffffffff80991528 tcp (tcp)
> @ /usr/src/head/sys/modules/siftr/../../netinet/siftr.c:702
> KDB: stack backtrace:
> db_trace_self_wrapper()
> kdb_backtrace()
> _witness_debugger()
> witness_checkorder()
> _rw_rlock()
> siftr_chkpkt()
> pfil_run_hooks()
> ip_input()
> netisr_dispatch_src()
> ether_demux()
> ether_input()
> msk_handle_events()
> msk_intr()
> intr_event_execute_handlers()
> ithread_loop()
> fork_exit()
> fork_trampoline()
> --- trap 0, rip = 0, rsp = 0xffffff8123559cf0, rbp = 0 ---
>

AFAIK, this LOR is documented in siftr(4) as harmless.

-- 
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