The following reply was made to PR port-i386/37637; it has been noted by GNATS.

From: Bernd Ernesti <pr200709@veego.de>
To: gnats-bugs@NetBSD.org
Cc: 
Subject: Re: port-i386/37637: MP kernel hangs before starting init
Date: Mon, 31 Dec 2007 20:58:30 +0100

 On Mon, Dec 31, 2007 at 10:00:07AM +0000, Andrew Doran wrote:
 >  On Sun, Dec 30, 2007 at 10:55:02AM +0000, Bernd Ernesti wrote:
 >  
 >  >  Adding two prinfts around
 >  >          for (pdev = pdevinit; pdev->pdev_attach != NULL; pdev++)
 >  >                  (*pdev->pdev_attach)(pdev->pdev_count);
 >  >  shows that it really stops here.
 >  
 >  Ok, can you do a printf("%x\n", pdev->pdev_attach) on each iteration through
 >  the loop? Using nm to match the address you can then find which driver is
 >  causing the boot to hang.
 
 Hmm, that wouldn't work:
 
 /src/sys/kern/init_main.c:499: warning: format '%x' expects type 'unsigned int', but argument 2 has type 'void (*)(int)'
 
 I changed it to:
 printf("%x\n", (int32_t)pdev->pdev_attach);
 
 And got this (the corresponding nm values are at the end):
 
 [..]
 audio0 at auich0: full duplex, independent
 Before pseudo-devices attachments (this is a printf without DELAY before the loop)
 c03e36c0
 c0113680
 crypto: assign driver 0, flags 2
 crypto: driver 0 registers alg 1 flags 0 maxoplen 0
 crypto: driver 0 registers alg 2 flags 0 maxoplen 0
 crypto: driver 0 registers alg 3 flags 0 maxoplen 0
 crypto: driver 0 registers alg 4 flags 0 maxoplen 0
 crypto: driver 0 registers alg 5 flags 0 maxoplen 0
 crypto: driver 0 registers alg 17 flags 0 maxoplen 0
 crypto: driver 0 registers alg 6 flags 0 maxoplen 0
 crypto: driver 0 registers alg 7 flags 0 maxoplen 0                     
 crypto: driver 0 registers alg 15 flags 0 maxoplen 0                    
 crypto: driver 0 registers alg 8 flags 0 maxoplen 0                     
 crypto: driver 0 registers alg 16 flags 0 maxoplen 0                    
 crypto: driver 0 registers alg 9 flags 0 maxoplen 0
 crypto: driver 0 registers alg 10 flags 0 maxoplen 0
 crypto: driver 0 registers alg 13 flags 0 maxoplen 0
 crypto: driver 0 registers alg 14 flags 0 maxoplen 0
 crypto: driver 0 registers alg 11 flags 0 maxoplen 0
 crypto: driver 0 registers alg 18 flags 0 maxoplen 0
 c03c0330
 c03c0de0
 Kernel lock error: _kernel_lock: spinout
 
 lock address : 0x00000000c08aaa80 type     :               spin
 shared holds :                  0 exclusive:                  1
 shares wanted:                  0 exclusive:                  1
 current cpu  :                  1 last held:                  0
 current lwp  : 0x00000000cc36f600 last held: 0x00000000c08382e0
 last locked  : 0x00000000c03d80ca unlocked : 0x00000000c04091b7
 initialized  : 0x00000000c03d7f69
 curcpu holds :                  0 wanted by: 0x00000000cc36f600
 
 c03c3b60
 panic: c03d22a0
 LOCKDEBUGc0472030
 
 Stopped in pid 0.30 (system) at netbsd:breakpoint+0x1:  ret
 db{1}> bt
 breakpoint(c07c8a03,c07c458c,c06b5637,c07c452b,c08b7be0) at netbsd:breakpoint+0x1
 lockdebug_abort1(c07c452b,1,ffea185,5,0) at netbsd:lockdebug_abort1+0x6b
 lockdebug_abort(c08aaa80,c0837b84,c06b5637,c07c452b,0) at netbsd:lockdebug_abort+0x74
 _kernel_lock(1,cc36f600,0,c01002bd,0) at netbsd:_kernel_lock+0x244
 
 
 Corresponding values from nm:
 c03e36c0 T cpuctlattach
 c0113680 T swcryptoattach
 c03c0330 T bioattach
 c03c0de0 T ccdattach
 c03c3b60 T cgdattach
 c03d22a0 T vndattach
 c0472030 T bpfilterattach
 
 Bernd