LOR

[Craig Rodrigues]

Hi,

I have been getting this LOR for a while,
and have been getting numerous kernel
panics related to running natd.

Sam Leffler is looking into it, but he is hard
at work fixing other problems in the networking
code as he strives to make it MPSAFE.


On Mon, Nov 03, 2003 at 09:24:14AM -0800, Maksim Yevmenkin wrote:
> Dear Hackers,
> 
> got this LOR this morning. sorry if already known/fixed.
> 
> beetle% uname -a
> FreeBSD beetle.digisle.com 5.1-CURRENT FreeBSD 5.1-CURRENT #0: Sat Nov  1
> 00:35:49 PST 2003     max at beetle.digisle.com:/usr/obj/usr/src/sys/BEETLE  i386
> beetle% 
> 
> lock order reversal
>  1st 0xc1ea534c inp (inp) @ /usr/src/sys/netinet/udp_usrreq.c:1042
>  2nd 0xc068982c div (div) @ /usr/src/sys/netinet/ip_divert.c:224
> Stack backtrace:
> backtrace(c0611668,c068982c,c0622a00,c0622a00,c06172a3) at backtrace+0x17
> witness_lock(c068982c,8,c06172a3,e0,0) at witness_lock+0x672
> _mtx_lock_flags(c068982c,0,c06172a3,e0,0) at _mtx_lock_flags+0xba
> divert_packet(c12ce600,0,21dc,32,68) at divert_packet+0x123
> ip_output(c12ce600,0,c1ea52dc,0,0) at ip_output+0x851
> udp_output(c1ea52a0,c12ce600,c1d472f0,0,c1d7c260) at udp_output+0x403
> udp_send(c1e9f880,0,c12ce600,c1d472f0,0) at udp_send+0xb7
> sosend(c1e9f880,c1d472f0,cd9bac48,c12ce600,0) at sosend+0x44d
> kern_sendit(c1d7c260,4,cd9bacc0,0,0) at kern_sendit+0x17c
> sendit(c1d7c260,4,cd9bacc0,0,812e01c) at sendit+0x16e
> sendto(c1d7c260,cd9bad10,c06247eb,3f0,6) at sendto+0x5b
> syscall(2f,2f,2f,bfbffdbc,812c07c) at syscall+0x2c0
> Xint0x80_syscall() at Xint0x80_syscall+0x1d
> --- syscall (133), eip = 0x28150fdf, esp = 0xbfbff6fc, ebp = 0xbfbffbf8 ---
> 
> 
> 
> 
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-- 
Craig Rodrigues        
http://crodrigues.org
rodrigc at crodrigues.org