spin lock sleepq chain held by 0xc0fc3540 for > 5 seconds

Hi

Had this twice on my dual PII server runnning current.  It was doing
a make world -j8 both times.

FreeBSD 5.2-CURRENT #4: Thu May  6 15:58:56 SAST 2004



spin lock sleepq chain held by 0xc0fc3540 for > 5 seconds
panic: spin lock held too long
at line 599 in file ../../../kern/kern_mutex.c
cpuid = 0; 
Stack backtrace:
backtrace(100,c4c447e0,3938700,c0667474,4) at backtrace+0x12
__panic(c0613962,257,c061394a,c0613921,c0615ed7) at __panic+0x12a
_mtx_lock_spin(c0667474,0,0,0) at _mtx_lock_spin+0x8a
sleepq_lookup(c065daa0,c4b853f0,ffffffff,ffffffff,d3184c48) at sleepq_lookup+0x60
sleepq_broadcast(c065daa0,0,ffffffff,d3184c54,c04db2d4) at sleepq_broadcast+0x12
wakeup(c065daa0,d3184c68,c04f4ed6,c4b853f0,c4b96660) at wakeup+0xf
setrunnable(c4b853f0) at setrunnable+0x84
sleepq_wakeup_thread(c4b96660,c4b853f0,ffffffff) at sleepq_wakeup_thread+0xfe
sleepq_broadcast(c4b84a50,0,ffffffff,d3184cdc,c04bf4c2) at sleepq_broadcast+0x29
wakeup(c4b84a50) at wakeup+0xf
exit1(c4c447e0,0,d3184d40,c05daf93,c4c447e0) at exit1+0x1316
exit1(c4c447e0,d3184d14,1,2,246) at exit1
syscall(2f,2f,2f,bfbfe8ec,bfbfe934) at syscall+0x283
Xint0x80_syscall() at Xint0x80_syscall+0x1f
--- syscall (1), eip = 0x8053273, esp = 0xbfbfe8b8, ebp = 0xbfbfe8c4 ---
boot() called on cpu#0

syncing disks, buffers remaining... spin lock sched lock held by 0xc4c447e0 for > 5 seconds
spin lock sleepq chain held by 0xc0fc3540 for > 5 seconds
panic: spin lock held too long
at line 599 in file ../../../kern/kern_mutex.ccpuid = 0; 
boot() called on cpu#0
Uptime: 5h23m47s
spin lock sleepq chain held by 0xc0fc3540 for > 5 seconds
panic: spin lock held too long
at line 599 in file ../../../kern/kern_mutex.ccpuid = 0; 
boot() called on cpu#0
Uptime: 5h23m47s
spin lock sleepq chain held by 0xc0fc3540 for > 5 seconds
panic: spin lock held too long
at line 599 in file ../../../kern/kern_mutex.ccpuid = 0; 
boot() called on cpu#0
Uptime: 5h23m47s
spin lock sleepq chain held by 0xc0fc3540 for > 5 seconds
panic: spin lock held too long
at line 599 in file ../../../kern/kern_mutex.ccpuid = 0; 
boot() called on cpu#0
Uptime: 5h23m47s

Fatal double fault:
eip = 0xc05e9b49
esp = 0xd3182f8c
ebp = 0xd3183010
cpuid = 0; apic id = 00
panic: double fault
at line 844 in file ../../../i386/i386/trap.ccpuid = 0; 
boot() called on cpu#0
Uptime: 5h23m47s
spin lock sleepq chain held by 0xc0fc3540 for > 5 seconds
panic: spin lock held too long
at line 599 in file ../../../kern/kern_mutex.ccpuid = 0; 
boot() called on cpu#0
Uptime: 5h23m47s


--
Ian Freislich