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Date:      Thu, 19 Jul 2007 09:59:53 +0800
From:      "Jiawei Ye" <leafy7382@gmail.com>
To:        "Jeff Roberson" <jroberson@chesapeake.net>
Cc:        attilio@freebsd.org, current@freebsd.org, Rene Ladan <r.c.ladan@gmail.com>
Subject:   Re: ULE/SCHED_SMP diff for 7.0
Message-ID:  <c21e92e20707181859j7577df67vce1e00ea6b9dd45a@mail.gmail.com>
In-Reply-To: <20070718163259.S561@10.0.0.1>
References:  <20070716233030.D92541@10.0.0.1> <469E83F8.3090103@gmail.com> <20070718142649.Y561@10.0.0.1> <469E897B.7080100@gmail.com> <469E9AE4.6050007@FreeBSD.org> <469EA0A2.1080901@gmail.com> <20070718163259.S561@10.0.0.1>

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After running the new ULE 3.0 for 2 days, I got this panic when try to
install diablo-jdk

spin lock 0xc0baa380 (sched lock 1) held by 0xc4b1aaa0 (tid 100189) too long
panic: spin lock held too long
cpuid = 0
Uptime: 7h52m15s
Physical memory: 1003 MB
Dumping 213 MB: 198 182 166 150 134 118 102 86 70 54 38 22 6


(kgdb) bt
#0  doadump () at pcpu.h:195
#1  0xc074ffe7 in boot (howto=260) at /usr/src/sys/kern/kern_shutdown.c:409
#2  0xc07502db in panic (fmt=Variable "fmt" is not available.
) at /usr/src/sys/kern/kern_shutdown.c:563
#3  0xc0743c1f in _mtx_lock_spin_failed (m=0x0)
    at /usr/src/sys/kern/kern_mutex.c:424
#4  0xc0743ca5 in _mtx_lock_spin (m=0xc0baa380, tid=3366110272, opts=0,
    file=0x0, line=0) at /usr/src/sys/kern/kern_mutex.c:457
#5  0xc076bc84 in sched_add (td=0xc4b1aaa0, flags=0)
    at /usr/src/sys/kern/sched_ule.c:943
#6  0xc076c046 in sched_wakeup (td=0xc4b1aaa0)
    at /usr/src/sys/kern/sched_ule.c:1858
#7  0xc0758158 in setrunnable (td=0xc4b1aaa0)
    at /usr/src/sys/kern/kern_synch.c:505
#8  0xc077f0a9 in sleepq_resume_thread (sq=0xc3ee05e0, td=0xc4b1aaa0,
pri=Variable "pri" is not available.
)
    at /usr/src/sys/kern/subr_sleepqueue.c:658
#9  0xc077fbe3 in sleepq_broadcast (wchan=0xc8b07784, flags=3, pri=-1, queue=0)
    at /usr/src/sys/kern/subr_sleepqueue.c:753
#10 0xc07576e8 in _sx_xunlock_hard (sx=0xc8b07784, tid=3366110272, file=0x0,
    line=0) at /usr/src/sys/kern/kern_sx.c:623
#11 0xc0757edf in _sx_xunlock (sx=0xc8b07784, file=0x0, line=0) at sx.h:168
#12 0xc096ec58 in _vm_map_unlock_read (map=0xc8b07740, file=0x0, line=0)
    at /usr/src/sys/vm/vm_map.c:457
#13 0xc096ec81 in vm_map_lookup_done (map=0xc8b07740, entry=0xc8a20bb0)
    at /usr/src/sys/vm/vm_map.c:3317
#14 0xc096805a in unlock_and_deallocate (fs=0xe6a97ac4)
    at /usr/src/sys/vm/vm_fault.c:147
#15 0xc096a234 in vm_fault (map=0xc8b07740, vaddr=135495680,
    fault_type=2 '\002', fault_flags=8) at /usr/src/sys/vm/vm_fault.c:922
#16 0xc0a1295b in trap_pfault (frame=0xe6a97c24, usermode=0, eva=135499760)
    at /usr/src/sys/i386/i386/trap.c:761
#17 0xc0a133f9 in trap (frame=0xe6a97c24) at /usr/src/sys/i386/i386/trap.c:462
#18 0xc09f944b in calltrap () at /usr/src/sys/i386/i386/exception.s:139
#19 0xc0a10a51 in suword32 () at /usr/src/sys/i386/i386/support.s:1249
Previous frame inner to this frame (corrupt stack?)

Jiawei
-- 
"If it looks like a duck, walks like a duck, and quacks like a duck,
then to the end user it's a duck, and end users have made it pretty
clear they want a duck; whether the duck drinks hot chocolate or
coffee is irrelevant."



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