IPv6 LOR

Tilman Linneweh arved at arved.at
Sat Aug 6 19:44:55 GMT 2005


Hi,

Today i tried to configure IPv6 on a RELENG_6 box with an axe(4) USB 
NIC.

I got these two traces in my log:

Aug  6 21:35:18 via kernel: Sleeping on "usbsyn" with the following 
non-sleepabl
e locks held:
Aug  6 21:35:18 via kernel: exclusive sleep mutex inp (raw6inp) r = 0 
(0xc133a9b
4) locked @ /usr/RELENG_6/src/sys/netinet6/raw_ip6.c:624
Aug  6 21:35:18 via kernel: exclusive sleep mutex rip r = 0 
(0xc079628c) locked
@ /usr/RELENG_6/src/sys/netinet6/raw_ip6.c:611
Aug  6 21:35:18 via kernel: KDB: stack backtrace:
Aug  6 21:35:18 via kernel: 
kdb_backtrace(2,c15fdc48,c1194780,2,d350b970) at kdb
_backtrace+0x29
Aug  6 21:35:18 via kernel: witness_warn(5,0,c06d85fe,c06cfc71) at 
witness_warn+
0x18e
Aug  6 21:35:18 via kernel: msleep(c23f0600,0,4c,c06cfc71,0) at 
msleep+0x42
Aug  6 21:35:18 via kernel: 
usbd_transfer(c23f0600,d350b9d0,c04d0825,c23f0600,24
6) at usbd_transfer+0x121
Aug  6 21:35:18 via kernel: 
usbd_sync_transfer(c23f0600,246,c074c360,d350b9cc,0)
  at usbd_sync_transfer+0x11
Aug  6 21:35:18 via kernel: 
usbd_do_request_flags_pipe(c1574400,c23e5a80,d350ba2
8,d350ba5e,0) at usbd_do_request_flags_pipe+0x5d
Aug  6 21:35:18 via kernel: 
usbd_do_request_flags(c1574400,d350ba28,d350ba5e,0,0
) at usbd_do_request_flags+0x20
Aug  6 21:35:18 via kernel: usbd_do_request(c1574400,d350ba28,d350ba5e) 
at usbd_
do_request+0x1a
Aug  6 21:35:18 via kernel: axe_cmd(c23d4500,200f,0,0,d350ba5e) at 
axe_cmd+0x74
Aug  6 21:35:18 via kernel: 
axe_setmulti(c23d4500,c23b4080,c23b4080,c1564680,c11
c9400) at axe_setmulti+0x2f
Aug  6 21:35:18 via kernel: axe_ioctl(c11c9400,80206932,0) at 
axe_ioctl+0x13e
Aug  6 21:35:18 via kernel: if_delmulti(c11c9400,c23ea640) at 
if_delmulti+0x199
Aug  6 21:35:18 via kernel: in6_delmulti(c1fe3bc0) at in6_delmulti+0x4f
Aug  6 21:35:18 via kernel: ip6_freemoptions(c11cb9c0,0) at 
ip6_freemoptions+0x3
7
Aug  6 21:35:18 via kernel: 
in6_pcbdetach(c133a924,c133a9b4,0,c06ec94e,270) at i
n6_pcbdetach+0x184
Aug  6 21:35:18 via kernel: rip6_detach(c14a342c) at rip6_detach+0x96
Aug  6 21:35:18 via kernel: 
soclose(c14a342c,c126b5e8,0,d350bb5c,c05045b8) at so
close+0x1e0
Aug  6 21:35:18 via kernel: soo_close(c126b5e8,c1194780) at 
soo_close+0x4b
Aug  6 21:35:18 via kernel: 
fdrop_locked(c126b5e8,c1194780,c1070784,0,c06d4c2e)
at fdrop_locked+0x88
Aug  6 21:35:18 via kernel: 
fdrop(c126b5e8,c1194780,d350bba8,c053ff84,c06d4c2e)
at fdrop+0x24
Aug  6 21:35:18 via kernel: closef(c126b5e8,c1194780) at closef+0x35f
Aug  6 21:35:18 via kernel: fdfree(c1194780,c15fdd94,0,c06db654,6ac) at 
fdfree+0
x473
Aug  6 21:35:18 via kernel: 
exit1(c1194780,100,d350bd30,c0696c87,c1194780) at ex
it1+0x3f6
Aug  6 21:35:18 via kernel: exit1(c1194780,d350bd04,1,2,296) at exit1
Aug  6 21:35:18 via kernel: syscall(3b,3b,3b,0,8057300) at syscall+0x22f
Aug  6 21:35:18 via kernel: Xint0x80_syscall() at Xint0x80_syscall+0x1f
Aug  6 21:35:18 via kernel: --- syscall (1, FreeBSD ELF32, sys_exit), 
eip = 0x28
0bd383, esp = 0xbfbfe17c, ebp = 0xbfbfe198 ---


Aug  6 21:35:18 via kernel: lock order reversal
Aug  6 21:35:18 via kernel: 1st 0xc133a9b4 inp (raw6inp) @ 
/usr/RELENG_6/src/sys
/netinet6/raw_ip6.c:624
Aug  6 21:35:18 via kernel: 2nd 0xc0747060 Giant (Giant) @ 
/usr/RELENG_6/src/sys
/kern/kern_synch.c:236
Aug  6 21:35:18 via kernel: KDB: stack backtrace:
Aug  6 21:35:18 via kernel: 
kdb_backtrace(0,ffffffff,c07543c0,c0756328,c071d1c4)
  at kdb_backtrace+0x29
Aug  6 21:35:18 via kernel: witness_checkorder(c0747060,9,c06d8637,ec) 
at witnes
s_checkorder+0x564
Aug  6 21:35:18 via kernel: _mtx_lock_flags(c0747060,0,c06d8637,ec) at 
_mtx_lock
_flags+0x5b
Aug  6 21:35:18 via kernel: msleep(c23f0600,0,4c,c06cfc71,0) at 
msleep+0x386
Aug  6 21:35:18 via kernel: 
usbd_transfer(c23f0600,d350b9d0,c04d0825,c23f0600,24
6) at usbd_transfer+0x121
Aug  6 21:35:18 via kernel: 
usbd_sync_transfer(c23f0600,246,c074c360,d350b9cc,0)
  at usbd_sync_transfer+0x11
Aug  6 21:35:18 via kernel: 
usbd_do_request_flags_pipe(c1574400,c23e5a80,d350ba2
8,d350ba5e,0) at usbd_do_request_flags_pipe+0x5d
Aug  6 21:35:18 via kernel: 
usbd_do_request_flags(c1574400,d350ba28,d350ba5e,0,0
) at usbd_do_request_flags+0x20
Aug  6 21:35:18 via kernel: usbd_do_request(c1574400,d350ba28,d350ba5e) 
at usbd_
do_request+0x1a
Aug  6 21:35:18 via kernel: axe_cmd(c23d4500,200f,0,0,d350ba5e) at 
axe_cmd+0x74
Aug  6 21:35:18 via kernel: 
axe_setmulti(c23d4500,c23b4080,c23b4080,c1564680,c11
c9400) at axe_setmulti+0x2f
Aug  6 21:35:18 via kernel: axe_ioctl(c11c9400,80206932,0) at 
axe_ioctl+0x13e
Aug  6 21:35:18 via kernel: if_delmulti(c11c9400,c23ea640) at 
if_delmulti+0x199
Aug  6 21:35:18 via kernel: in6_delmulti(c1fe3bc0) at in6_delmulti+0x4f
Aug  6 21:35:18 via kernel: ip6_freemoptions(c11cb9c0,0) at 
ip6_freemoptions+0x3
7
Aug  6 21:35:18 via kernel: 
in6_pcbdetach(c133a924,c133a9b4,0,c06ec94e,270) at i
n6_pcbdetach+0x184
Aug  6 21:35:18 via kernel: rip6_detach(c14a342c) at rip6_detach+0x96
Aug  6 21:35:18 via kernel: 
soclose(c14a342c,c126b5e8,0,d350bb5c,c05045b8) at so
close+0x1e0
Aug  6 21:35:18 via kernel: soo_close(c126b5e8,c1194780) at 
soo_close+0x4b
Aug  6 21:35:18 via kernel: 
fdrop_locked(c126b5e8,c1194780,c1070784,0,c06d4c2e)
at fdrop_locked+0x88
Aug  6 21:35:18 via kernel: 
fdrop(c126b5e8,c1194780,d350bba8,c053ff84,c06d4c2e)
at fdrop+0x24
Aug  6 21:35:18 via kernel: closef(c126b5e8,c1194780) at closef+0x35f
Aug  6 21:35:18 via kernel: fdfree(c1194780,c15fdd94,0,c06db654,6ac) at 
fdfree+0
x473
Aug  6 21:35:18 via kernel: 
exit1(c1194780,100,d350bd30,c0696c87,c1194780) at ex
it1+0x3f6
Aug  6 21:35:18 via kernel: exit1(c1194780,d350bd04,1,2,296) at exit1
Aug  6 21:35:18 via kernel: syscall(3b,3b,3b,0,8057300) at syscall+0x22f
Aug  6 21:35:18 via kernel: Xint0x80_syscall() at Xint0x80_syscall+0x1f
Aug  6 21:35:18 via kernel: --- syscall (1, FreeBSD ELF32, sys_exit), 
eip = 0x28
0bd383, esp = 0xbfbfe17c, ebp = 0xbfbfe198 ---


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