ifconfig, socket locking, diagnostic panic, whee

["Jonathan A. Kollasch" <jakllsch%kollasch.net@localhost>]

Hi,

So, I got this lovely panic:

# ifconfig -a                                                                  
xennet0: flags=8822<BROADCAST,NOTRAILERS,SIMPLEX,MULTICAST> mtu 1500
        capabilities=2800<TCP4CSUM_Tx,UDP4CSUM_Tx>
        enabled=0
        address: 00:16:3e:06:6f:a0
panic: kernel diagnostic assertion "solocked(so)" failed: file 
"/local/netbsd-5/src/sys/kern/uipc_socket.c", line 519
Stopped in pid 273.1 (ifconfig) at      netbsd:breakpoint+0x4:  popl    %ebp
db> bt
breakpoint(c0441fd3,caf1ac28,c0457fc0,c03a8ba7,0) at netbsd:breakpoint+0x4
panic(c044bd44,c0410578,c0410e79,c043b150,207) at netbsd:panic+0x1c2
__kernassert(c0410578,c043b150,207,c0410e79,0) at netbsd:__kernassert+0x39
socreate(7,caf1aca0,2,0,cacbd260) at netbsd:socreate+0x1dc
fsocreate(7,0,2,0,cacbd260) at netbsd:fsocreate+0x7b
sys___socket30(cacbd260,caf1ad00,caf1ad28,caf1ad40,c039cdce) at 
netbsd:sys___socket30+0x35
syscall(caf1ad48,1f,1f,1f,1f) at netbsd:syscall+0xaa
db> 

This is reproducible for me.

This is a XEN3PAE kernel, 4.99.61,
sources might be a day or three out of date.

Maybe someone wants to know.

        Jonathan Kollasch

Attachment: pgp_DD3TQxUb5.pgp
Description: PGP signature