panic SCHED_ULE

From: Norikatsu Shigemura <nork_at_FreeBSD.org>
Date: Sun, 6 Feb 2005 20:08:19 +0900 (JST)
	In recently 6-current with SMP(PentiumIII-S x2), I contacted
	a scheduler panic while `make -j1024 buildworld'.
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FreeBSD 6.0-CURRENT #10: Sun Feb  6 19:10:30 JST 2005
    nork_at_nadesico.ninth-nine.com:/devel/obj/usr/src/sys/NADESICO
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	How should this problem be fixed?
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SMP: AP CPU #1 Launched!
Trying to mount root from ufs:/dev/ad0s1a

FreeBSD/i386 (nadesico.ninth-nine.com) (dcons)

login: info: [drm] Loading R200 Microcode
[thread pid 36 tid 100012 ]
Stopped at      sched_add+0xf:  movl    0x4(%eax),%ecx
db> where
Tracing pid 36 tid 100012 td 0xc2bbb320
sched_add(0,0,e400ca84,246,c446819c,11800,4bc21b1e,0,c446621c) at sched_add+0xf
setrunqueue(c40d0af0,0,246,28000000,c2bbb320) at setrunqueue+0x4e
sched_thread_priority(c40d0af0,28,e400caa0,c049ea35,10) at sched_thread_priority+0xb9
propagate_priority(c06d08e0,c2bbb320,0,0,0) at propagate_priority+0x50
turnstile_wait(c06df98c,c40d0af0,34,14,c2fce354) at turnstile_wait+0x23c
_mtx_lock_sleep(c06df98c,c2bbb320,0,0,0) at _mtx_lock_sleep+0x91
tcp_input(c2fce300,14,c0627713,c06d08e0,e400cc24) at tcp_input+0xf34
ip_input(c2fce300,1,dbeb7139,fff3ccd4,ffc00014) at ip_input+0xf2
netisr_processqueue(246,c9,90afd8e9,e1fc0d15,1f4) at netisr_processqueue+0x5c
swi_net(0,0,0,0,0) at swi_net+0x117
ithread_loop(c2c00580,e400cd48,53bff9ff,3fffff9f,fefbfbbf) at ithread_loop+0xb3
fork_exit(c048f870,c2c00580,e400cd48) at fork_exit+0x62
fork_trampoline() at fork_trampoline+0x8
--- trap 0x1, eip = 0, esp = 0xe400cd7c, ebp = 0 ---
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Received on Sun Feb 06 2005 - 10:08:21 UTC

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