Re: LOR+PANIC in 7.0-CURRENT

Please provide the dmesg and your kernel config files when reporting  
crash...


Le 27 déc. 05 à 22:43, Goran Gajic a écrit :

> FreeBSD  7.0-CURRENT FreeBSD 7.0-CURRENT #16: Mon Dec 26 19:39:26  
> CET 2005 root_at_:/usr/src/sys/i386/compile/TEST  i386
>
>
>  lock order reversal: (sleepable after non-sleepable)
>  1st 0xc2b77498 inp (tcpinp) _at_ netinet/tcp_input.c:743
>  2nd 0xc0967ec4 user map (user map) _at_ vm/vm_map.c:2993
>  KDB: stack backtrace:
>  kdb_backtrace(0,ffffffff,c0977848,c0977488,c092ad8c) at  
> kdb_backtrace+0x29
>  witness_checkorder(c0967ec4,9,c08b631d,bb1) at witness_checkorder 
> +0x580
>  _sx_xlock(c0967ec4,c08b6314,bb1) at _sx_xlock+0x50
>  _vm_map_lock_read(c0967e80,c08b6314,bb1,216da80,c216c6ec) at  
> _vm_map_lock_read+0x33
>  vm_map_lookup(cbfd9888,0,2,cbfd988c,cbfd987c) at vm_map_lookup+0x28
>  vm_fault(c0967e80,0,2,8,c216da80) at vm_fault+0x65
>  trap_pfault(cbfd99a4,0,44) at trap_pfault+0xee
>  trap(c2160008,cbfd0028,c0690028,44,c28baa63) at trap+0x3cd
>  calltrap() at calltrap+0x5
>  --- trap 0xc, eip = 0xc0829b36, esp = 0xcbfd99e4, ebp = 0xcbfd9a14  
> ---
>  generic_bcopy(c28baa63,6d,c228a438,c228a438,c0929784) at  
> generic_bcopy+0x1a
>  pppasyncstart(c243a600,c227210c,0,c08a5fee,3af) at pppasyncstart 
> +0x108
>  pppoutput(c2272000,c2a52500,c2846330,c2437ba0,c2849c00) at  
> pppoutput+0x2b2
>  ip_output(c2a52500,0,cbfd9ac8,0,0) at ip_output+0x7b6
>  tcp_output(c2b74c94) at tcp_output+0xff6
>  tcp_input(c2a52400,14,138,16055b93,0) at tcp_input+0x2bff
>  ip_input(c2a52400) at ip_input+0x5a1
>  netisr_processqueue(c09b5098) at netisr_processqueue+0x6e
>  swi_net(0) at swi_net+0xc2
>  ithread_execute_handlers(c216c684,c216a400) at  
> ithread_execute_handlers+0xe6
>  ithread_loop(c21566f0,cbfd9d38,c21566f0,c0659f00,0) at ithread_loop 
> +0x66
>  fork_exit(c0659f00,c21566f0,cbfd9d38) at fork_exit+0xa4
>  fork_trampoline() at fork_trampoline+0x8
>  --- trap 0x1, eip = 0, esp = 0xcbfd9d6c, ebp = 0 ---
>
>
>  Fatal trap 12: page fault while in kernel mode
>  fault virtual address  = 0x0
>  fault code             = supervisor read, page not present
>  instruction pointer    = 0x20:0xc0829b36
>  stack pointer          = 0x28:0xcca66c5c
>  frame pointer          = 0x28:0xcca66c88
>  code segment           = base 0x0, limit 0xfffff, type 0x1b
>  = DPL 0, pres 1, def32 1, gran 1
>  processor eflags       = interrupt enabled, resume, IOPL = 0
>  current process                = 28 (swi0: sio)
>
> For some reason I couldn't use kgdb to do bactrace:
>
> # kgdb  /usr/src/sys/i386/compile/TEST/kernel.debug  /var/crash/ 
> vmcore.0
> kgdb: cannot read PTD
> #
>
>
> Regards,
> gg.
>
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Olivier Warin - http://xview.net
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