panic: mb_dtor_mbuf: M_EXT set

[Christian Brueffer]

Hi,

got the following panic at boot after an update to RELENG_6 from
about 22:00 CET on an i386 SMP system.  As this is fully repdoducible,
I can provide more info if needed.


panic: mb_dtor_mbuf: M_EXT set
cpuid = 0
KDB: enter: panic
[thread pid 230 tid 100073 ]
Stopped at      kdb_enter+0x30: leave   
db> tr
Tracing pid 230 tid 100073 td 0xc3621300
kdb_enter(c07c0f49,0,c07bf27a,d7769a78,c3621300) at kdb_enter+0x30
panic(c07bf27a,c079477c,c07c285c,1,c374f000) at panic+0x14e
mb_dtor_mbuf(c374f000,100,0,956,0) at mb_dtor_mbuf+0x4a
uma_zfree_arg(c1050b40,c374f000,0) at uma_zfree_arg+0x2f
mb_free_ext(c374f000,0,0,0,d7769b18) at mb_free_ext+0x19a
m_freem(c374f000,0,c09623ca,5cc,c3401400) at m_freem+0x29
sf_stop(c33eb680,1,c09623ca,4c7,4ba) at sf_stop+0x125
sf_init_locked(c33eb74c,0,c09623ca,4ba,c3401400) at sf_init_locked+0x4d
sf_init(c33eb700,c083b840,1,8020690c,c3737b00) at sf_init+0x39
ether_ioctl(c3401400,8020690c,c3737b00,529,0) at ether_ioctl+0x67
sf_ioctl(c3401400,8020690c,c3737b00,c3737b7c,1) at sf_ioctl+0x10c
in_ifinit(c3401400,c3737b00,c363d150,0,1) at in_ifinit+0x208
in_control(c373c858,8040691a,c363d140,c3401400,c3621300) at in_control+0x986
ifioctl(c373c858,8040691a,c363d140,c3621300,2) at ifioctl+0x1cd
soo_ioctl(c3697990,8040691a,c363d140,c3306780,c3621300) at soo_ioctl+0x3ef
ioctl(c3621300,d7769d04,c,41d,3) at ioctl+0x45d
syscall(3b,3b,3b,8058ba0,1) at syscall+0x2c0
Xint0x80_syscall() at Xint0x80_syscall+0x1f
--- syscall (54, FreeBSD ELF32, ioctl), eip = 0x2814d287, esp = 0xbfbfe5fc, ebp = 0xbfbfee68 ---
db>

- Christian

-- 
Christian Brueffer	chris at unixpages.org	brueffer at FreeBSD.org
GPG Key:	 http://people.freebsd.org/~brueffer/brueffer.key.asc
GPG Fingerprint: A5C8 2099 19FF AACA F41B  B29B 6C76 178C A0ED 982D
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