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Date:      Thu, 18 Aug 2011 18:07:59 -0700
From:      Garrett Cooper <yanegomi@gmail.com>
To:        FreeBSD Current <freebsd-current@freebsd.org>
Cc:        freebsd-net@freebsd.org
Subject:   LOR in route.c // scope6.c
Message-ID:  <CAGH67wSS-Uxobeq3FgDq4VSSJYG8WDsVaDvXtt=uW%2BY8GS4wkA@mail.gmail.com>

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Hi,
    I've periodically seen the following LOR when trying to repro a
panic after restarting my network configuration:

:lock order reversal:
 1st 0xc4142f1c rtentry (rtentry) @ /usr/src/sys/net/routec:362
 2nd 0xc3d08604 if_afdata (if_afdata) @ /usr/src/sys/netinet6/scope6.c:417
KDB: stack backtrace:
db_trace_self_wrapper(...)
_witness_debugger(...)
_rw_wlock(...)
in6_setscope(...)
in6_purgeaddr(...)
in6_control(...)
ifioctl(...)
soo_ioctl(...)
kern_ioctl(...)
ioctl(...)
syscallenter(...)
syscall(...)
Xint0x80_syscall()

I don't have a full backtrace or core for this. This was running
r224948 UP with WITNESS.

Thanks,
-Garrett



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