Date: Tue, 27 Dec 2005 22:43:55 +0100 (CET) From: Goran Gajic <ggajic@afrodita.rcub.bg.ac.yu> To: freebsd-current@www.freebsd.org Subject: LOR+PANIC in 7.0-CURRENT Message-ID: <Pine.LNX.4.63.0512272241020.21806@afrodita.rcub.bg.ac.yu>
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FreeBSD 7.0-CURRENT FreeBSD 7.0-CURRENT #16: Mon Dec 26 19:39:26 CET 2005 root@:/usr/src/sys/i386/compile/TEST i386 lock order reversal: (sleepable after non-sleepable) 1st 0xc2b77498 inp (tcpinp) @ netinet/tcp_input.c:743 2nd 0xc0967ec4 user map (user map) @ 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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