Deadlock under recent 6.0

From: Kris Kennaway <kris_at_obsecurity.org>
Date: Sat, 18 Dec 2004 14:13:22 -0800
After updating it earlier this week, one of my SMP machines (with
SCHED_4BSD) is regularly deadlocking under load; nothing is reported
by WITNESS.  A sample process listing from DDB and some strack traces
are as follows:

db> ps
  pid   proc     uid  ppid  pgrp  flag   stat  wmesg    wchan  cmd
83025 c8142dc8    0 83014 77576 0004000 [CPU 1] kldload
83019 cb6a55e8   22 83010 83010 0000100 [SLPQ select 0xc077bc44][SLP] sshd
83014 c5e625e8    0 82843 77576 0004000 [SLPQ wait 0xc5e625e8][SLP] sh
83010 c817e7e0    0   525 83010 0004100 [SLPQ sbwait 0xc7d11d40][SLP] sshd
83005 c5a1d7e0 1002 83002 16151 0000002 [SLPQ nanslp 0xc075088c][SLP] ptimeout.i386
83004 cb62c3f0 1002 83002 16151 0004002 [SLPQ select 0xc077bc44][SLP] ssh
83002 c5e703f0 1002 82909 16151 0004002 [SLPQ wait 0xc5e703f0][SLP] ptimeout.i386
82909 c5a1a000 1002 82907 16151 0004002 [SLPQ wait 0xc5a1a000][SLP] sh
82907 c817f9d8 1002 16151 16151 0004002 [SLPQ wait 0xc817f9d8][SLP] sh
82874 c81427e0    0   647   647 0004002 [SLPQ nanslp 0xc075088c][SLP] sleep
82843 cb62d5e8    0 82842 77576 0004000 [SLPQ wait 0xcb62d5e8][SLP] make
82842 c5cd93f0    0 82752 77576 0004000 [SLPQ wait 0xc5cd93f0][SLP] sh
82753 c60c0000    0 82751 77576 0000000 [SLPQ nanslp 0xc075088c][SLP] pnohang
82752 c60b8bd0    0 82751 77576 0004000 [SLPQ wait 0xc60b8bd0][SLP] make
82751 cb62cbd0    0 79383 77576 0004000 [SLPQ wait 0xcb62cbd0][SLP] pnohang
81203 c81569d8 1002 39242 16151 0004002 [LOCK  Giant c5aeac00] ssh
79383 c5e681f8    0 77577 77576 0004000 [SLPQ wait 0xc5e681f8][SLP] sh
77577 c8141bd0    0 77576 77576 0004000 [SLPQ wait 0xc8141bd0][SLP] sh
77576 cb62c000    0 77574 77576 0004000 [SLPQ pause 0xcb62c034][SLP] csh
77574 c81417e0    0   525 77574 0004100 [SLPQ select 0xc077bc44][SLP] sshd
77573 c5e62000 1002 77571 16151 0000002 [SLPQ nanslp 0xc075088c][SLP] ptimeout.i386
77572 c5b03000 1002 77571 16151 0004002 [SLPQ select 0xc077bc44][SLP] ssh
77571 c817f7e0 1002 77540 16151 0004002 [SLPQ wait 0xc817f7e0][SLP] ptimeout.i386
77540 c60c09d8 1002 77539 16151 0004002 [SLPQ wait 0xc60c09d8][SLP] sh
77539 c5e61dc8 1002 16151 16151 0004002 [SLPQ wait 0xc5e61dc8][SLP] sh
59056 c5e6fbd0 1002 59054 16151 0000002 [SLPQ nanslp 0xc075088c][SLP] ptimeout.i386
59055 c60bc3f0 1002 59054 16151 0004002 [LOCK  Giant c5aeac00] ssh
59054 cb6a73f0 1002 58912 16151 0004002 [SLPQ wait 0xcb6a73f0][SLP] ptimeout.i386
58912 c5e62dc8 1002 58911 16151 0004002 [SLPQ wait 0xc5e62dc8][SLP] sh
58911 c60b79d8 1002 16151 16151 0004002 [SLPQ wait 0xc60b79d8][SLP] sh
47177 c817e000 1002 47175 16151 0000002 [SLPQ nanslp 0xc075088c][SLP] ptimeout.i386
47176 c5cd95e8 1002 47175 16151 0004002 [LOCK  Giant c5aeac00] ssh
47175 c5b0a3f0 1002 47097 16151 0004002 [SLPQ wait 0xc5b0a3f0][SLP] ptimeout.i386
47097 c5e61bd0 1002 47096 16151 0004002 [SLPQ wait 0xc5e61bd0][SLP] sh
47096 c5e6f1f8 1002 16151 16151 0004002 [SLPQ wait 0xc5e6f1f8][SLP] sh
39242 c81785e8 1002 39241 16151 0004002 [SLPQ wait 0xc81785e8][SLP] sh
39241 c8141000 1002 16151 16151 0004002 [SLPQ wait 0xc8141000][SLP] sh
38761 c8155dc8 1002 38759 16151 0000002 [SLPQ nanslp 0xc075088c][SLP] ptimeout.i386
38760 c8156bd0 1002 38759 16151 0004002 [SLPQ select 0xc077bc44][SLP] ssh
38759 c7d05000 1002 38625 16151 0004002 [SLPQ wait 0xc7d05000][SLP] ptimeout.i386
38687 c5e619d8 1002 38684 16151 0000002 [SLPQ nanslp 0xc075088c][SLP] ptimeout.i386
38686 cb62c5e8 1002 38684 16151 0004002 [LOCK  Giant c5aeac00] ssh
38684 c5b095e8 1002 38571 16151 0004002 [SLPQ wait 0xc5b095e8][SLP] ptimeout.i386
38625 c60b8dc8 1002 38624 16151 0004002 [SLPQ wait 0xc60b8dc8][SLP] sh
38624 cb62ddc8 1002 16151 16151 0004002 [SLPQ wait 0xcb62ddc8][SLP] sh
38571 c8155000 1002 38570 16151 0004002 [SLPQ wait 0xc8155000][SLP] sh
38570 c81779d8 1002 16151 16151 0004002 [SLPQ wait 0xc81779d8][SLP] sh
10235 c5e6f9d8 1002 10233 16151 0000002 [SLPQ nanslp 0xc075088c][SLP] ptimeout.i386
10234 cb6a43f0 1002 10233 16151 0004002 [LOCK  Giant c5aeac00] ssh
10233 c7d055e8 1002  9773 16151 0004002 [SLPQ wait 0xc7d055e8][SLP] ptimeout.i386
 9773 c5e611f8 1002  9770 16151 0004002 [SLPQ wait 0xc5e611f8][SLP] sh
 9770 c81415e8 1002 16151 16151 0004002 [SLPQ wait 0xc81415e8][SLP] sh
20341 c5e715e8 1002 20339 16151 0000002 [SLPQ nanslp 0xc075088c][SLP] ptimeout.i386
20340 c8178dc8 1002 20339 16151 0004002 [LOCK  Giant c5aeac00] ssh
20339 c5e617e0 1002 20183 16151 0004002 [SLPQ wait 0xc5e617e0][SLP] ptimeout.i386
20183 c60b85e8 1002 20182 16151 0004002 [SLPQ wait 0xc60b85e8][SLP] sh
20182 c7d097e0 1002 16151 16151 0004002 [SLPQ wait 0xc7d097e0][SLP] sh
19748 cb6a53f0 1002 19746 16151 0000002 [SLPQ nanslp 0xc075088c][SLP] ptimeout.i386
19747 cb6a4000 1002 19746 16151 0004002 [SLPQ select 0xc077bc44][SLP] ssh
19746 c60bcdc8 1002 19710 16151 0004002 [SLPQ wait 0xc60bcdc8][SLP] ptimeout.i386
19710 c7d053f0 1002 19709 16151 0004002 [SLPQ wait 0xc7d053f0][SLP] sh
19709 c8177000 1002 16151 16151 0004002 [SLPQ wait 0xc8177000][SLP] sh
16151 cb62d9d8 1002   762 16151 0004002 [SLPQ select 0xc077bc44][SLP] make
11489 c60bc7e0   80   559   559 0000100 [LOCK  Giant c5aeac00] httpd
11404 cb6a41f8   80   559   559 0000100 [LOCK  Giant c5aeac00] httpd
11403 c5e719d8   80   559   559 0000100 [LOCK  Giant c5aeac00] httpd
11296 c5e621f8   80   559   559 0000100 [LOCK  Giant c5aeac00] httpd
74409 c817fbd0    0   643 74409 0004002 [SLPQ ttyin 0xc5792410][SLP] csh
68429 c5e707e0    0   643 68429 0004002 [SLPQ ttyin 0xc585b410][SLP] csh
 1305 c5cd8dc8   80   559   559 0000100 [LOCK  Giant c5aeac00] httpd
  762 c5ce03f0 1002   761   762 0004002 [SLPQ pause 0xc5ce0424][SLP] tcsh
  761 c5b0a9d8    0   664   761 0004102 [SLPQ wait 0xc5b0a9d8][SLP] su
  664 c5b0a5e8    0   643   664 0004002 [SLPQ pause 0xc5b0a61c][SLP] csh
  647 c578dbd0    0   644   647 0004002 [SLPQ wait 0xc578dbd0][SLP] sh
  644 c5b29dc8    0   643   644 0004002 [SLPQ pause 0xc5b29dfc][SLP] csh
  643 c5cd8000    0   642   643 0000000 [SLPQ select 0xc077bc44][SLP] screen
  642 c5a1abd0    0   640   642 0004002 [SLPQ pause 0xc5a1ac04][SLP] screen
  640 c5cd83f0    0   638   640 0004002 [SLPQ pause 0xc5cd8424][SLP] csh
  638 c5cd87e0    0   525   638 0004100 [LOCK  Giant c5aeac00] sshd
  606 c5b277e0   80   559   559 0000100 [LOCK  Giant c5aeac00] httpd
  605 c5b093f0   80   559   559 0000100 [LOCK  Giant c5aeac00] httpd
  604 c5b297e0   80   559   559 0000100 [LOCK  Giant c5aeac00] httpd
  603 c5b27bd0   80   559   559 0000100 [LOCK  Giant c5aeac00] httpd
  602 c5b035e8   80   559   559 0000100 [LOCK  Giant c5aeac00] httpd
  601 c5b0adc8    0     1   601 0004002 [SLPQ ttyin 0xc5856810][SLP] getty
  600 c5b091f8    0     1   600 0004002 [SLPQ ttyin 0xc5854810][SLP] getty
  599 c5a1a3f0    0     1   599 0004002 [SLPQ ttyin 0xc5854c10][SLP] getty
  598 c5b27000    0     1   598 0004002 [SLPQ ttyin 0xc5855010][SLP] getty
  597 c5b291f8    0     1   597 0004002 [SLPQ ttyin 0xc582a810][SLP] getty
  596 c5b03bd0    0     1   596 0004002 [SLPQ ttyin 0xc5829410][SLP] getty
  595 c5b09dc8    0     1   595 0004002 [SLPQ ttyin 0xc5813410][SLP] getty
  594 c5a1a7e0    0     1   594 0004002 [SLPQ ttyin 0xc582b010][SLP] getty
  593 c5b29bd0    0     1   593 0004002 [SLPQ ttyin 0xc582a410][SLP] getty
  588 c5b031f8    0     1   588 0000000 [LOCK  Giant c5aeac00] inetd
  566 c5b279d8    0     1   566 0000000 [SLPQ select 0xc077bc44][SLP] rsync
  559 c5b037e0    0     1   559 0000000 [SLPQ select 0xc077bc44][SLP] httpd
  546 c5b293f0    0     1   546 0000000 [SLPQ nanslp 0xc075088c][SLP] cron
  534 c5b039d8   25     1   534 0000100 [SLPQ pause 0xc5b03a0c][SLP] sendmail
  530 c5a1d9d8    0     1   530 0000100 [SLPQ select 0xc077bc44][SLP] sendmail
  525 c5a1dbd0    0     1   525 0000100 [SLPQ select 0xc077bc44][SLP] sshd
  510 c5a1a1f8    0     1   510 0000000 [SLPQ select 0xc077bc44][SLP] ntpd
  465 c5b0a000    0   460   460 0000000 [SLPQ - 0xc5ae7c00][SLP] nfsd
  463 c5b275e8    0   460   460 0000000 [SLPQ - 0xc5ae7200][SLP] nfsd
  462 c5b271f8    0   460   460 0000000 [SLPQ - 0xc59f3e00][SLP] nfsd
  461 c5b09000    0   460   460 0000000 [SLPQ - 0xc5ae7400][SLP] nfsd
  460 c5b273f0    0     1   460 0000000 [SLPQ select 0xc077bc44][SLP] nfsd
  458 c5b033f0    0     1   458 0000000 [SLPQ select 0xc077bc44][SLP] mountd
  389 c5b27dc8    0     1   389 0000000 [SLPQ select 0xc077bc44][SLP] rpcbind
  374 c5b09bd0   53     1   374 0008180 (threaded)  named
   thread 0xcb6cbcf0 ksegrp 0xc5b06000 [SLPQ kserel 0xc5b06034][SLP]
   thread 0xcb9522e0 ksegrp 0xc5b06000 [SLPQ select 0xc077bc44][SLP]
   thread 0xcb954b80 ksegrp 0xc5b06000 [LOCK  Giant c5aeac00]
   thread 0xc5b2a2e0 ksegrp 0xc5b28240 [SLPQ ksesigwait 0xc5b09d08][SLP]
  359 c5b097e0    0     1   359 0000000 [SLPQ select 0xc077bc44][SLP] syslogd
  305 c5b299d8    0     1   305 0000000 [SLPQ select 0xc077bc44][SLP] devd
  233 c5a1a5e8    0     1   233 0000000 [SLPQ pause 0xc5a1a61c][SLP] adjkerntz
  153 c5a1adc8    0     0     0 0000204 [SLPQ - 0xeec68d04][SLP] schedcpu
  152 c5a1d000    0     0     0 0000204 [SLPQ - 0xc078310c][SLP] nfsiod 3
  151 c5a1d1f8    0     0     0 0000204 [SLPQ - 0xc0783108][SLP] nfsiod 2
  150 c5a1d3f0    0     0     0 0000204 [SLPQ - 0xc0783104][SLP] nfsiod 1
  149 c5a1d5e8    0     0     0 0000204 [SLPQ - 0xc0783100][SLP] nfsiod 0
  148 c57257e0    0     0     0 0000204 [SLPQ vlruwt 0xc57257e0][SLP] vnlru
  147 c57259d8    0     0     0 0000204 [SLPQ syncer 0xc075060c][SLP] syncer
  146 c5725bd0    0     0     0 0000204 [SLPQ psleep 0xc077c1ac][SLP] bufdaemon
  145 c5725dc8    0     0     0 000020c [SLPQ pgzero 0xc0789994][SLP] pagezero
  144 c578a000    0     0     0 0000204 [SLPQ psleep 0xc07899e8][SLP] vmdaemon
  143 c578a1f8    0     0     0 0000204 [SLPQ psleep 0xc07899a4][SLP] pagedaemon
  142 c578a3f0    0     0     0 0000204 [IWAIT] swi0: sio
  141 c578a5e8    0     0     0 0000204 [SLPQ - 0xc582ee3c][SLP] fdc0
  140 c578a7e0    0     0     0 0000204 [SLPQ idle 0xc5788600][SLP] aic_recovery1
    9 c578a9d8    0     0     0 0000204 [SLPQ idle 0xc5788600][SLP] aic_recovery1
    8 c578abd0    0     0     0 0000204 [SLPQ idle 0xc5788800][SLP] aic_recovery0
    7 c578adc8    0     0     0 0000204 [SLPQ idle 0xc5788800][SLP] aic_recovery0
  139 c578d000    0     0     0 0000204 [IWAIT] swi6:+
    6 c578d1f8    0     0     0 0000204 [SLPQ - 0xc57914c0][SLP] thread taskq
  138 c578d3f0    0     0     0 0000204 [IWAIT] swi5:+
    5 c578d5e8    0     0     0 0000204 [SLPQ - 0xc575c580][SLP] kqueue taskq
  137 c570a7e0    0     0     0 0000204 [IWAIT] swi2: cambio
  136 c570a9d8    0     0     0 0000204 [IWAIT] swi6: task queue
  135 c570abd0    0     0     0 0000204 [SLPQ - 0xc074b240][SLP] yarrow
    4 c570adc8    0     0     0 0000204 [SLPQ - 0xc074dc88][SLP] g_down
    3 c5721000    0     0     0 0000204 [SLPQ - 0xc074dc84][SLP] g_up
    2 c57211f8    0     0     0 0000204 [SLPQ - 0xc074dc7c][SLP] g_event
  134 c57213f0    0     0     0 0000204 [IWAIT] swi3: vm
  133 c57215e8    0     0     0 000020c [LOCK  Giant c5aeac00] swi4: clock sio
  132 c57217e0    0     0     0 0000204 [IWAIT] swi1: net
  131 c57219d8    0     0     0 0000204 [IWAIT] irq0: clk
  130 c5721bd0    0     0     0 0000204 [IWAIT] irq119:
  129 c5721dc8    0     0     0 0000204 [IWAIT] irq118:
  128 c5725000    0     0     0 0000204 [IWAIT] irq117:
  127 c57251f8    0     0     0 0000204 [IWAIT] irq116:
  126 c57253f0    0     0     0 0000204 [IWAIT] irq115:
  125 c57255e8    0     0     0 0000204 [IWAIT] irq114:
  124 c56f57e0    0     0     0 0000204 [IWAIT] irq113:
  123 c56f59d8    0     0     0 0000204 [IWAIT] irq112:
  122 c56f5bd0    0     0     0 0000204 [IWAIT] irq111:
  121 c56f5dc8    0     0     0 0000204 [IWAIT] irq110:
  120 c5709000    0     0     0 0000204 [IWAIT] irq109:
  119 c57091f8    0     0     0 0000204 [IWAIT] irq108:
  118 c57093f0    0     0     0 0000204 [IWAIT] irq107:
  117 c57095e8    0     0     0 0000204 [IWAIT] irq106:
  116 c57097e0    0     0     0 0000204 [IWAIT] irq105:
  115 c57099d8    0     0     0 0000204 [IWAIT] irq104:
  114 c5709bd0    0     0     0 0000204 [IWAIT] irq103:
  113 c5709dc8    0     0     0 0000204 [IWAIT] irq102:
  112 c570a000    0     0     0 0000204 [IWAIT] irq101:
  111 c570a1f8    0     0     0 0000204 [IWAIT] irq100:
  110 c570a3f0    0     0     0 0000204 [IWAIT] irq99:
  109 c570a5e8    0     0     0 0000204 [IWAIT] irq98:
  108 c56e27e0    0     0     0 0000204 [IWAIT] irq97:
  107 c56e29d8    0     0     0 0000204 [IWAIT] irq96:
  106 c56e2bd0    0     0     0 0000204 [IWAIT] irq95:
  105 c56e2dc8    0     0     0 0000204 [IWAIT] irq94:
  104 c56f4000    0     0     0 0000204 [IWAIT] irq93:
  103 c56f41f8    0     0     0 0000204 [IWAIT] irq92:
  102 c56f43f0    0     0     0 0000204 [IWAIT] irq91:
  101 c56f45e8    0     0     0 0000204 [IWAIT] irq90:
  100 c56f47e0    0     0     0 0000204 [IWAIT] irq89:
   99 c56f49d8    0     0     0 0000204 [IWAIT] irq88:
   98 c56f4bd0    0     0     0 0000204 [IWAIT] irq87:
   97 c56f4dc8    0     0     0 0000204 [IWAIT] irq86:
   96 c56f5000    0     0     0 0000204 [IWAIT] irq85:
   95 c56f51f8    0     0     0 0000204 [IWAIT] irq84:
   94 c56f53f0    0     0     0 0000204 [IWAIT] irq83:
   93 c56f55e8    0     0     0 0000204 [IWAIT] irq82:
   92 c56d09d8    0     0     0 0000204 [IWAIT] irq81:
   91 c56d0bd0    0     0     0 0000204 [IWAIT] irq80:
   90 c56d0dc8    0     0     0 0000204 [IWAIT] irq79:
   89 c56e1000    0     0     0 0000204 [IWAIT] irq78:
   88 c56e11f8    0     0     0 0000204 [IWAIT] irq77: ahc1
   87 c56e13f0    0     0     0 0000204 [IWAIT] irq76: ahc0
   86 c56e15e8    0     0     0 0000204 [IWAIT] irq75:
   85 c56e17e0    0     0     0 0000204 [IWAIT] irq74:
   84 c56e19d8    0     0     0 0000204 [IWAIT] irq73:
   83 c56e1bd0    0     0     0 0000204 [IWAIT] irq72:
   82 c56e1dc8    0     0     0 0000204 [IWAIT] irq71:
   81 c56e2000    0     0     0 0000204 [IWAIT] irq70:
   80 c56e21f8    0     0     0 0000204 [IWAIT] irq69:
   79 c56e23f0    0     0     0 0000204 [IWAIT] irq68:
   78 c56e25e8    0     0     0 0000204 [IWAIT] irq67:
   77 c56bedc8    0     0     0 0000204 [IWAIT] irq66:
   76 c56cd000    0     0     0 0000204 [IWAIT] irq65:
   75 c56cd1f8    0     0     0 0000204 [IWAIT] irq64:
   74 c56cd3f0    0     0     0 0000204 [IWAIT] irq63:
   73 c56cd5e8    0     0     0 0000204 [IWAIT] irq62:
   72 c56cd7e0    0     0     0 0000204 [IWAIT] irq61:
   71 c56cd9d8    0     0     0 0000204 [IWAIT] irq60:
   70 c56cdbd0    0     0     0 0000204 [IWAIT] irq59:
   69 c56cddc8    0     0     0 0000204 [IWAIT] irq58:
   68 c56d0000    0     0     0 0000204 [IWAIT] irq57:
   67 c56d01f8    0     0     0 0000204 [IWAIT] irq56:
   66 c56d03f0    0     0     0 0000204 [IWAIT] irq55:
   65 c56d05e8    0     0     0 0000204 [IWAIT] irq54:
   64 c56d07e0    0     0     0 0000204 [IWAIT] irq53:
   63 c56a63f0    0     0     0 0000204 [IWAIT] irq52:
   62 c56a65e8    0     0     0 0000204 [IWAIT] irq51:
   61 c56a67e0    0     0     0 0000204 [IWAIT] irq50:
   60 c56a69d8    0     0     0 0000204 [IWAIT] irq49:
   59 c56a6bd0    0     0     0 0000204 [IWAIT] irq48:
   58 c56a6dc8    0     0     0 0000204 [IWAIT] irq47:
   57 c56be000    0     0     0 0000204 [IWAIT] irq46:
   56 c56be1f8    0     0     0 0000204 [IWAIT] irq45:
   55 c56be3f0    0     0     0 0000204 [IWAIT] irq44:
   54 c56be5e8    0     0     0 0000204 [IWAIT] irq43:
   53 c56be7e0    0     0     0 0000204 [IWAIT] irq42:
   52 c56be9d8    0     0     0 0000204 [IWAIT] irq41:
   51 c56bebd0    0     0     0 0000204 [IWAIT] irq40:
   50 c5699bd0    0     0     0 0000204 [IWAIT] irq39:
   49 c5699dc8    0     0     0 0000204 [IWAIT] irq38:
   48 c56a4000    0     0     0 0000204 [IWAIT] irq37:
   47 c56a41f8    0     0     0 0000204 [IWAIT] irq36:
   46 c56a43f0    0     0     0 0000204 [IWAIT] irq35:
   45 c56a45e8    0     0     0 0000204 [IWAIT] irq34:
   44 c56a47e0    0     0     0 0000204 [IWAIT] irq33:
   43 c56a49d8    0     0     0 0000204 [IWAIT] irq32:
   42 c56a4bd0    0     0     0 0000204 [IWAIT] irq31:
   41 c56a4dc8    0     0     0 0000204 [IWAIT] irq30:
   40 c56a6000    0     0     0 0000204 [IWAIT] irq29:
   39 c56a61f8    0     0     0 0000204 [IWAIT] irq28:
   38 c56895e8    0     0     0 0000204 [IWAIT] irq27:
   37 c56897e0    0     0     0 0000204 [IWAIT] irq26:
   36 c56899d8    0     0     0 0000204 [IWAIT] irq25:
   35 c5689bd0    0     0     0 0000204 [IWAIT] irq24:
   34 c5689dc8    0     0     0 0000204 [IWAIT] irq23:
   33 c5699000    0     0     0 0000204 [IWAIT] irq22:
   32 c56991f8    0     0     0 0000204 [IWAIT] irq21:
   31 c56993f0    0     0     0 0000204 [IWAIT] irq20:
   30 c56995e8    0     0     0 0000204 [IWAIT] irq19:
   29 c56997e0    0     0     0 0000204 [IWAIT] irq18: fxp1
   28 c56999d8    0     0     0 0000204 [IWAIT] irq17: fxp0
   27 c56471f8    0     0     0 0000204 [IWAIT] irq16:
   26 c56473f0    0     0     0 0000204 [IWAIT] irq15: ata1
   25 c56475e8    0     0     0 0000204 [IWAIT] irq14: ata0
   24 c56477e0    0     0     0 0000204 [IWAIT] irq13:
   23 c56479d8    0     0     0 0000204 [IWAIT] irq12:
   22 c5647bd0    0     0     0 0000204 [IWAIT] irq11:
   21 c5647dc8    0     0     0 0000204 [IWAIT] irq10:
   20 c5689000    0     0     0 0000204 [IWAIT] irq9:
   19 c56891f8    0     0     0 0000204 [IWAIT] irq8: rtc
   18 c56893f0    0     0     0 0000204 [IWAIT] irq7:
   17 c563e000    0     0     0 0000204 [IWAIT] irq6: fdc0
   16 c563e1f8    0     0     0 0000204 [IWAIT] irq5:
   15 c563e3f0    0     0     0 0000204 [IWAIT] irq4: sio0
   14 c563e5e8    0     0     0 0000204 [IWAIT] irq3: sio1
   13 c563e7e0    0     0     0 0000204 [IWAIT] irq1: atkbd0
   12 c563e9d8    0     0     0 000020c [CPU 0] idle: cpu0
   11 c563ebd0    0     0     0 000020c [Can run] idle: cpu1
    1 c563edc8    0     0     1 0004200 [SLPQ wait 0xc563edc8][SLP] init
   10 c5647000    0     0     0 0000204 [SLPQ ktrace 0xc074e818][SLP] ktrace
    0 c074dd80    0     0     0 0000200 [SLPQ sched 0xc074dd80][SLP] swapper
db> tr 83025
Tracing pid 83025 tid 100398 td 0xc8145b80
sched_switch(c0758848,c075f120,1,c0758848,c075f0e0) at sched_switch+0xfe
w_data(e8721c73,8b01c783,75db851b,83d231d0,d08914c4) at w_data+0x16a8
db> tr 133
Tracing pid 133 tid 100118 td 0xc56f7b80
sched_switch(c56f7b80,0,1,11a,96a33ef7) at sched_switch+0xfe
mi_switch(1,0,c06f4bb5,a4,c56f7b80) at mi_switch+0x1c2
turnstile_wait(c074ede0,c8145b80,c06f0f63,21e,c074ede0) at turnstile_wait+0x67f
_mtx_lock_sleep(c074ede0,c56f7b80,0,c06f2b48,f7) at _mtx_lock_sleep+0xc2
_mtx_lock_flags(c074ede0,0,c06f2b48,f7,570e5ee) at _mtx_lock_flags+0xb0
softclock(0,0,c06ef57c,257,0) at softclock+0x2fa
ithread_loop(c5738800,eebdcd48,c06ef359,30e,c5738800) at ithread_loop+0x1fb
fork_exit(c050f4af,c5738800,eebdcd48) at fork_exit+0xa6
fork_trampoline() at fork_trampoline+0x8
--- trap 0x1, eip = 0, esp = 0xeebdcd7c, ebp = 0 ---
db> tr 81203
Tracing pid 81203 tid 100379 td 0xc8143cf0
sched_switch(c8143cf0,0,1,11a,5aec0817) at sched_switch+0xfe
mi_switch(1,0,c06f4bb5,a4,c8143cf0) at mi_switch+0x1c2
turnstile_wait(c074ede0,c8145b80,c06f0f63,21e,c074ede0) at turnstile_wait+0x67f
_mtx_lock_sleep(c074ede0,c8143cf0,0,c06fab79,2fd) at _mtx_lock_sleep+0xc2
_mtx_lock_flags(c074ede0,0,c06fab79,2fd,f1667c18) at _mtx_lock_flags+0xb0
vn_ioctl(c5dc72a8,402c7413,cb9c0980,c7096000,c8143cf0) at vn_ioctl+0x3e
ioctl(c8143cf0,f1667d14,c,3ff,3) at ioctl+0x11e
syscall(2f,2f,2f,0,3) at syscall+0x13b
Xint0x80_syscall() at Xint0x80_syscall+0x1f
--- syscall (54, FreeBSD ELF32, ioctl), eip = 0x282cb783, esp = 0xbfbfc22c, ebp = 0xbfbfc248 ---
d
Received on Sat Dec 18 2004 - 21:13:23 UTC

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