Date: Sun, 7 Nov 2010 01:34:48 +0300 From: Sergey Kandaurov <pluknet@gmail.com> To: Bruce Cran <bruce@cran.org.uk> Cc: bzeeb+freebsd+lor@zabbadoz.net, current@freebsd.org Subject: Re: siftr LOR: PFil hook read/write mutex vs. tcp Message-ID: <AANLkTi=GgP5jND16X%2Bdcpfb7CokkcAJnyx%2B7ekDM4Gtc@mail.gmail.com> In-Reply-To: <20101106172725.00004b20@unknown> References: <20101106172725.00004b20@unknown>
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On 6 November 2010 20:27, Bruce Cran <bruce@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. -- wbr, pluknet
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