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Bug #1634

Updated by tuxillo about 7 years ago

Our dragonfly box has got a panic last night. it runs master from last week. 

 

 I wrote down some text from the panic: 

 

 mp_lock = 00000002; cpuid = 2 

 

 Trace beginning at frame    0xe42d3b88 

 

 panic(...) 
 
 panic(...) 
 
 exponential_backoff(ff010000, 1 ,3c, e4ad1320, c727dbb) 
 
 spin_lock_wr_contested(e4ad1320, 0000000) 
 
 crfree(e4ad12b0,2, e42f3cc4, c00ef73, e42f3c00) 
 
 nlookup_done(e42f3c00, e4960720, c0304fe3, 0, c0384b5c) 
 
 sys_lstat(e32f3cf0,6,0,0dd9fce18) 
 
 syscall2(e42f3d440) 

 

 Whoever can understand this, can you tell me what happened and how can 
 
 this be fixed? 

 

 Also, is there any way to automate this: when panic occurs, automatically 
 
 start a memory dump process and then automatically reboot? I've been going 
 
 to the data center way too many times recently to investigate why the box 
 
 has crashed and it would be very helpful. 

 

 Petr

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