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Re: kern/54908: kernel semi-lock-up



The following reply was made to PR kern/54908; it has been noted by GNATS.

From: Martin Husemann <martin%duskware.de@localhost>
To: gnats-bugs%netbsd.org@localhost
Cc: 
Subject: Re: kern/54908: kernel semi-lock-up
Date: Thu, 30 Jan 2020 13:51:30 +0100

 With todays current it did not lock up completely but was still (apparently)
 fully functional, only that one test case hung inside the kernel and did
 not return to userland (I ktrac'ed the process after I found it hung and
 did not get any output).
 
 Ddb output in that state below. The hanging test case is=20
 lib/librumpclient/t_exec:threxec
 
 Martin
 
 db{0}> ps
 PID    LID S CPU     FLAGS       STRUCT LWP *               NAME WAIT
 28346    1 3   0        80           99ab9d00               tcsh ttyraw
 29251   82 2   1         0           99353b40          h_execthr
 29251   81 2   1         0           99b68940          h_execthr
 29251   80 2   1         0           998a04c0          h_execthr
 29251   79 2   1         0           99ba1740          h_execthr
 29251   78 2   1         0           99b8e0c0          h_execthr
 29251   77 2   1         0           99ad87c0          h_execthr
 29251   76 2   1         0           99ad7d00          h_execthr
 29251   75 2   1         0           99b9c440          h_execthr
 29251   74 2   1         0           99bb2340          h_execthr
 29251   73 2   1         0           99ae0640          h_execthr
 29251   72 2   1         0           99bb2600          h_execthr
 29251   71 2   1         0           99ab6c80          h_execthr
 29251   70 2   1         0           99b34340          h_execthr
 29251   69 2   1         0           99ae8700          h_execthr
 29251   68 2   1         0           99ae00c0          h_execthr
 29251   67 2   1         0           99bbd0c0          h_execthr
 29251   66 2   1         0           99ac5cc0          h_execthr
 29251   65 2   1         0           99b055c0          h_execthr
 29251   64 2   1         0           99b09080          h_execthr
 29251   63 2   1         0           99b23740          h_execthr
 29251   62 2   1         0           94397a80          h_execthr
 29251   61 2   1         0           99b34b80          h_execthr
 29251   60 2   1         0           99ad7200          h_execthr
 29251   59 2   1         0           99b64380          h_execthr
 29251   58 2   1         0           99ac1980          h_execthr
 29251   57 2   1         0           99b51200          h_execthr
 29251   56 2   1         0           99b72440          h_execthr
 29251   55 3   1        80           99b80500          h_execthr parked
 29251   54 3   1        80           99b8e640          h_execthr parked
 29251   53 3   1        80           99ac6d00          h_execthr parked
 29251   52 3   1        80           99349d40          h_execthr parked
 29251   51 3   1        80           99ad7780          h_execthr parked
 29251   50 3   1        80           99b5b880          h_execthr parked
 29251   49 3   1        80           99353300          h_execthr parked
 29251   48 3   1        80           993780c0          h_execthr parked
 29251   47 3   1        80           99b1dc80          h_execthr parked
 29251   46 3   1        80           99b26780          h_execthr parked
 29251   45 3   1        80           99ad8500          h_execthr parked
 29251   44 3   1        80           99bae5c0          h_execthr parked
 29251   43 3   1        80           99ae5140          h_execthr parked
 29251   42 3   1        80           99ad5a00          h_execthr parked
 29251   41 3   1        80           99b8e900          h_execthr parked
 29251   40 3   1        80           99ba4d00          h_execthr parked
 29251   39 3   1        80           99b34080          h_execthr parked
 29251   38 3   1        80           943977c0          h_execthr parked
 29251   37 3   1        80           943e3bc0          h_execthr parked
 29251   36 3   1        80           99325a00          h_execthr parked
 29251   35 3   1        80           9326bcc0          h_execthr parked
 29251   34 3   1        80           99b2c240          h_execthr parked
 29251   33 3   1        80           991e8700          h_execthr parked
 29251   32 3   1        80           99b3e3c0          h_execthr parked
 29251   31 3   1        80           943e3380          h_execthr parked
 29251   30 3   1        80           998a1500          h_execthr parked
 29251   29 3   1        80           99aea1c0          h_execthr parked
 29251   28 3   1        80           99b97140          h_execthr parked
 29251   27 2   1         0           94397d40          h_execthr
 29251   26 2   1         0           9938f140          h_execthr
 29251   25 2   1         0           99b2f040          h_execthr
 29251   24 2   1         0           998b7400          h_execthr
 29251   23 2   1         0           99ad0140          h_execthr
 29251   22 2   1         0           99b0f640          h_execthr
 29251   21 2   1         0           99ab94c0          h_execthr
 29251   20 2   1         0           99b5f340          h_execthr
 29251   19 2   1         0           99ae8c80          h_execthr
 29251   18 2   1         0           99ae5c40          h_execthr
 29251   17 2   1         0           9989e740          h_execthr
 29251   16 2   1         0           99ac1140          h_execthr
 29251   15 2   1         0           99ac2180          h_execthr
 29251   14 2   1         0           99b97400          h_execthr
 29251   13 2   1         0           99ba1a00          h_execthr
 29251   12 2   1         0           998ac100          h_execthr
 29251   11 2   1         0           993535c0          h_execthr
 29251   10 2   1         0           998aa900          h_execthr
 29251    9 2   1         0           998aa0c0          h_execthr
 29251    8 2   1         0           9938a680          h_execthr
 29251    7 2   1         0           99adbb40          h_execthr
 29251    6 2   1         0           99ac1c40          h_execthr
 29251    5 2   1         0           9938ac00          h_execthr
 29251    4 2   1         0           99b380c0          h_execthr
 29251    3 2   1         0           99ab8480          h_execthr
 29251    2 3   1        80           99b7b780          h_execthr kqueue
 29251    1 2   1         0           9989d440          h_execthr
 29307    1 3   0        80           99333a40          atf-check wait
 26269   36 5   1         0           998a1240        rump_server
 26269   23 3   1        80           99b78740        rump_server parked
 26269  149 3   1        80           99b1d180        rump_server parked
 26269  148 3   1        80           99b1a400        rump_server parked
 26269  147 3   1        80           99b13680        rump_server parked
 26269  146 3   1        80           99b0f900        rump_server parked
 26269  145 3   1        80           99b09b80        rump_server parked
 26269  144 3   1        80           99b05b40        rump_server parked
 26269  143 3   1        80           99abc040        rump_server parked
 26269  142 3   1        80           99abb500        rump_server parked
 26269  141 3   1        80           99ab9780        rump_server parked
 26269  140 3   1        80           99ac5a00        rump_server parked
 26269  139 3   1        80           99ac29c0        rump_server parked
 26269  135 3   1        80           99abcb40        rump_server parked
 26269  133 3   1        80           99b9cc80        rump_server parked
 26269  123 3   1        80           99b57500        rump_server parked
 26269   82 3   1        80           99b7b4c0        rump_server parked
 26269   22 3   1        80           99378640        rump_server poll
 26269   21 3   1        80           943a1300        vmem_rehash parked
 26269   20 3   1        80           943e63c0           aiodoned parked
 26269   19 3   0        80           998a3040            ioflush nanoslp
 26269   18 3   0        80           931f9700            cachegc nanoslp
 26269   17 3   1        80           943e6680             vdrain parked
 26269   16 3   1        80           94397500            pdaemon parked
 26269   15 3   1        80           998a3b40            xcall/1 parked
 26269   14 3   1        80           99349a80             sipbnc parked
 26269   13 2   1         0           99325480           rumpclk1
 26269   12 3   1        80           93113140            xcall/0 parked
 26269   11 3   1        80           9938a3c0             rsi1/0 parked
 26269   10 3   1        80           991ce980             rsi0/0 parked
 26269    9 3   1        80           940ec4c0             rsi1/3 parked
 26269    8 3   0        80           998a3880             rsi0/3 parked
 26269    7 3   1        80           998a5b80             rsi1/2 parked
 26269    6 3   0        80           998a0d00             rsi0/2 parked
 26269    5 3   0        80           943e3640             sipbnc parked
 26269    4 2   1         0           9938fc40           rumpclk0
 26269    3 3   1        80           99373080             rsi1/1 parked
 26269    2 3   0        80           9938f980             rsi0/1 parked
 26269    1 3   0        80           943a1880        rump_server psem
 6297     1 3   1        80           998a17c0                 sh wait
 1457     1 3   0        80           940ecd00               tail kqueue
 983      1 3   0        80           94397240               tcsh pause
 423      1 3   0        80           940ec780               sshd select
 693      1 3   0        80           930b5100               sshd poll
 675      1 3   0        80           93113980                tee pipe_rd
 652      1 3   0        80           931f99c0         atf-report pipe_rd
 139      1 3   0        80           9326b740                tee pipe_rd
 564      1 2   1   1000000           9326b1c0            atf-run
 591      1 3   0        80           92e72cc0                 sh wait
 637      1 3   1        80           930b5680                 sh wait
 539      1 3   0        80           9307fbc0              login wait
 521      1 3   0        80           9326ba00               cron nanoslp
 403      1 3   1        80           931136c0              inetd kqueue
 462      1 3   0        80           9326b480               sshd select
 412      1 2   1   1000000           93113c40               ntpd
 170      1 3   0        80           931f9180            rpcbind poll
 260      1 3   0        80           931f9440            syslogd kqueue
 223      1 2   1         0           930b5c00             dhcpcd
 1        1 3   0        80           92fe6340               init wait
 0       55 3   0       200           993334c0             ktrace ktrwait
 0       36 3   0       200           92fe6b80            physiod physiod
 0       59 3   0       200           9307f900           aiodoned aiodoned
 0       58 2   1       200           9307f640            ioflush
 0       57 3   0       200           9307f380          pooldrain xclocv
 0    >  56 7   1  20000200           9307f0c0           pgdaemon
 0       35 3   0       200           92e72a00               usb3 usbevt
 0       34 3   0       200           92e72740               usb2 usbevt
 0       33 3   0       200           92e72480               usb1 usbevt
 0       54 3   0       200           92fe68c0               usb0 usbevt
 0       53 2   1       200           92fe6600            npfgc-0
 0       52 3   0       200           92fe6080            rt_free rt_free
 0       51 3   0       200           92fdfb40              unpgc unpgc
 0       50 3   0       200           92fdf880    key_timehandler key_timeha=
 ndler
 
 0       49 3   1       200           92fdf5c0    icmp6_wqinput/1 icmp6_wqin=
 put
 0       48 3   0       200           92fdf300    icmp6_wqinput/0 icmp6_wqin=
 put
 0       47 3   0       200           92fdf040          nd6_timer nd6_timer
 0       46 3   1       200           92e97d40    carp6_wqinput/1 carp6_wqin=
 put
 0       45 3   0       200           92e97a80    carp6_wqinput/0 carp6_wqin=
 put
 0       44 3   1       200           92e977c0     carp_wqinput/1 carp_wqinp=
 ut
 0       40 3   0       200           92e721c0     carp_wqinput/0 carp_wqinp=
 ut
 0       39 3   1       200           92e924c0     icmp_wqinput/1 icmp_wqinp=
 ut
 0       38 3   0       200           92e92780     icmp_wqinput/0 icmp_wqinp=
 ut
 0       37 3   0       200           92e92200           rt_timer rt_timer
 0       32 2   1       200           92e92a40        vmem_rehash
 0       43 3   0       200           92e97500             sdmmc1 mmctaskq
 0       42 3   0       200           92e97240             sdmmc0 mmctaskq
 0       41 3   0       200           92e92d00            axp20x0 axp20x0
 0       31 2   1       200           92e1bc80               iic2
 0       30 2   1       200           92e1b9c0               iic1
 0       29 3   1       200           92e1b700            atabus0 atath
 0       28 3   0       200           92e1b440         usbtask-dr usbtsk
 0       27 3   0       200           92e1b180         usbtask-hc usbtsk
 0       26 2   1       200           92a0dc40               iic0
 0       25 2   1       200           92a0d980            xcall/1
 0       24 1   1       200           92a0d6c0          softser/1
 0       23 1   1       200           92a0d400          softclk/1
 0       22 1   1       200           92a0d140          softbio/1
 0       21 1   1       200           929f8c00          softnet/1
 0       20 1   1       201           929f8940             idle/1
 0       19 3   0       200           929f8680           lnxpwrwq lnxpwrwq
 0       18 3   0       200           929f83c0           lnxlngwq lnxlngwq
 0       17 3   0       200           929f8100           lnxsyswq lnxsyswq
 0       16 3   0       200           929f3bc0           lnxrcugc lnxrcugc
 0       15 3   0       200           929f3900             sysmon smtaskq
 0       14 3   0       200           929f3640         pmfsuspend pmfsuspend
 0       13 3   0       200           929f3380           pmfevent pmfevent
 0       12 3   0       200           929f30c0         sopendfree sopendfr
 0       11 3   0       200           928dbb80           nfssilly nfssilly
 0       10 2   1       200           928db8c0            cachegc
 0        9 3   0       200           928db600             vdrain vdrain
 0        8 3   0       200           928db340          modunload mod_unld
 0        7 3   0       200           928db080            xcall/0 xcall
 0        6 1   0       200           928d8b40          softser/0
 0    >   5 7   0  20000200           928d8880          softclk/0
 0        4 1   0       200           928d85c0          softbio/0
 0        3 1   0       200           928d8300          softnet/0
 0    >   2 7   0  20000201           928d8040             idle/0
 0        1 3   0       200           807ec580            swapper uvm
 db{0}> show uvem=08 =08m=08 =08=08 =08mexp
 Current UVM status:
   pagesize=3D4096 (0x1000), pagemask=3D0xfff, pageshift=3D12, ncolors=3D1
   510689 VM pages: 40014 active, 20037 inactive, 2197 wired, 403266 free
   pages  6074 anon, 52650 file, 3525 exec
   freemin=3D512, free-target=3D682, wired-max=3D170229
   resv-pg=3D1, resv-kernel=3D10, zeropages=3D0
   bootpages=3D9975, poolpages=3D36763
   faults=3D10490891, traps=3D10708462, intrs=3D2544140, ctxswitch=3D2252057
    softint=3D1430455, syscalls=3D102759012
   fault counts:
     noram=3D0, noanon=3D0, pgwait=3D0, pgrele=3D0
     ok relocks(total)=3D7738(7738), anget(retrys)=3D3322063(0), amapcopy=3D=
 1683486
     neighbor anon/obj pg=3D2256366/18276006, gets(lock/unlock)=3D3991464/79=
 33
     cases: anon=3D2113084, anoncow=3D1208979, obj=3D3522882, prcopy=3D46838=
 7, przero=3D220
 9116
   daemon and swap counts:
     woke=3D1, revs=3D32, scans=3D0, obscans=3D0, anscans=3D0
     busy=3D0, freed=3D0, reactivate=3D0, deactivate=3D20102
     pageouts=3D0, pending=3D0, nswget=3D0
     nswapdev=3D1, swpgavail=3D524533
     swpages=3D524533, swpginuse=3D0, swpgonly=3D0, paging=3D0
 db{0}> c
 +=1B[29G=1B[K
 
 [/tmp] root@space-truckin #=20
 
 [/tmp] root@space-truckin # ++++Stopped in pid 0.5 (system) at  netbsd:cpu_=
 Debugger+0x4:        bx      r14
 db{0}> show uvmexp
 Current UVM status:
   pagesize=3D4096 (0x1000), pagemask=3D0xfff, pageshift=3D12, ncolors=3D1
   510689 VM pages: 40014 active, 20037 inactive, 2197 wired, 403193 free
   pages  6074 anon, 52650 file, 3525 exec
   freemin=3D512, free-target=3D682, wired-max=3D170229
   resv-pg=3D1, resv-kernel=3D10, zeropages=3D0
   bootpages=3D9975, poolpages=3D36829
   faults=3D10490891, traps=3D10708491, intrs=3D2546750, ctxswitch=3D2252292
    softint=3D1432291, syscalls=3D102759089
   fault counts:
     noram=3D0, noanon=3D0, pgwait=3D0, pgrele=3D0
     ok relocks(total)=3D7738(7738), anget(retrys)=3D3322063(0), amapcopy=3D=
 1683486
     neighbor anon/obj pg=3D2256366/18276006, gets(lock/unlock)=3D3991464/79=
 33
     cases: anon=3D2113084, anoncow=3D1208979, obj=3D3522882, prcopy=3D46838=
 7, przero=3D220
 9116
   daemon and swap counts:
     woke=3D1, revs=3D32, scans=3D0, obscans=3D0, anscans=3D0
     busy=3D0, freed=3D0, reactivate=3D0, deactivate=3D20102
     pageouts=3D0, pending=3D0, nswget=3D0
     nswapdev=3D1, swpgavail=3D524533
     swpages=3D524533, swpginuse=3D0, swpgonly=3D0, paging=3D0
 db{0}> bt
 0x9ba5bebc: netbsd:com_common_getc+0xc
 0x9ba5bedc: netbsd:wsscreen_getc_poll+0x68
 0x9ba5bf24: netbsd:callout_softclock+0x398
 0x9ba5bfac: netbsd:softint_dispatch+0x140
 Bad frame pointer: 0x80b14f54
 db{0}> ps
 PID    LID S CPU     FLAGS       STRUCT LWP *               NAME WAIT
 28346    1 3   0        80           99ab9d00               tcsh ttyraw
 29251   82 2   1         0           99353b40          h_execthr
 29251   81 2   1         0           99b68940          h_execthr
 29251   80 2   1         0           998a04c0          h_execthr
 29251   79 2   1         0           99ba1740          h_execthr
 29251   78 2   1         0           99b8e0c0          h_execthr
 29251   77 2   1         0           99ad87c0          h_execthr
 29251   76 2   1         0           99ad7d00          h_execthr
 29251   75 2   1         0           99b9c440          h_execthr
 29251   74 2   1         0           99bb2340          h_execthr
 29251   73 2   1         0           99ae0640          h_execthr
 29251   72 2   1         0           99bb2600          h_execthr
 29251   71 2   1         0           99ab6c80          h_execthr
 29251   70 2   1         0           99b34340          h_execthr
 29251   69 2   1         0           99ae8700          h_execthr
 29251   68 2   1         0           99ae00c0          h_execthr
 29251   67 2   1         0           99bbd0c0          h_execthr
 29251   66 2   1         0           99ac5cc0          h_execthr
 29251   65 2   1         0           99b055c0          h_execthr
 29251   64 2   1         0           99b09080          h_execthr
 29251   63 2   1         0           99b23740          h_execthr
 29251   62 2   1         0           94397a80          h_execthr
 29251   61 2   1         0           99b34b80          h_execthr
 29251   60 2   1         0           99ad7200          h_execthr
 29251   59 2   1         0           99b64380          h_execthr
 29251   58 2   1         0           99ac1980          h_execthr
 29251   57 2   1         0           99b51200          h_execthr
 29251   56 2   1         0           99b72440          h_execthr
 29251   55 3   1        80           99b80500          h_execthr parked
 29251   54 3   1        80           99b8e640          h_execthr parked
 29251   53 3   1        80           99ac6d00          h_execthr parked
 29251   52 3   1        80           99349d40          h_execthr parked
 29251   51 3   1        80           99ad7780          h_execthr parked
 29251   50 3   1        80           99b5b880          h_execthr parked
 29251   49 3   1        80           99353300          h_execthr parked
 29251   48 3   1        80           993780c0          h_execthr parked
 29251   47 3   1        80           99b1dc80          h_execthr parked
 29251   46 3   1        80           99b26780          h_execthr parked
 29251   45 3   1        80           99ad8500          h_execthr parked
 29251   44 3   1        80           99bae5c0          h_execthr parked
 29251   43 3   1        80           99ae5140          h_execthr parked
 29251   42 3   1        80           99ad5a00          h_execthr parked
 29251   41 3   1        80           99b8e900          h_execthr parked
 29251   40 3   1        80           99ba4d00          h_execthr parked
 29251   39 3   1        80           99b34080          h_execthr parked
 29251   38 3   1        80           943977c0          h_execthr parked
 29251   37 3   1        80           943e3bc0          h_execthr parked
 29251   36 3   1        80           99325a00          h_execthr parked
 29251   35 3   1        80           9326bcc0          h_execthr parked
 29251   34 3   1        80           99b2c240          h_execthr parked
 29251   33 3   1        80           991e8700          h_execthr parked
 29251   32 3   1        80           99b3e3c0          h_execthr parked
 29251   31 3   1        80           943e3380          h_execthr parked
 29251   30 3   1        80           998a1500          h_execthr parked
 29251   29 3   1        80           99aea1c0          h_execthr parked
 29251   28 3   1        80           99b97140          h_execthr parked
 29251   27 2   1         0           94397d40          h_execthr
 29251   26 2   1         0           9938f140          h_execthr
 29251   25 2   1         0           99b2f040          h_execthr
 29251   24 2   1         0           998b7400          h_execthr
 29251   23 2   1         0           99ad0140          h_execthr
 29251   22 2   1         0           99b0f640          h_execthr
 29251   21 2   1         0           99ab94c0          h_execthr
 29251   20 2   1         0           99b5f340          h_execthr
 29251   19 2   1         0           99ae8c80          h_execthr
 29251   18 2   1         0           99ae5c40          h_execthr
 29251   17 2   1         0           9989e740          h_execthr
 29251   16 2   1         0           99ac1140          h_execthr
 29251   15 2   1         0           99ac2180          h_execthr
 29251   14 2   1         0           99b97400          h_execthr
 29251   13 2   1         0           99ba1a00          h_execthr
 29251   12 2   1         0           998ac100          h_execthr
 29251   11 2   1         0           993535c0          h_execthr
 29251   10 2   1         0           998aa900          h_execthr
 29251    9 2   1         0           998aa0c0          h_execthr
 29251    8 2   1         0           9938a680          h_execthr
 29251    7 2   1         0           99adbb40          h_execthr
 29251    6 2   1         0           99ac1c40          h_execthr
 29251    5 2   1         0           9938ac00          h_execthr
 29251    4 2   1         0           99b380c0          h_execthr
 29251    3 2   1         0           99ab8480          h_execthr
 29251    2 3   1        80           99b7b780          h_execthr kqueue
 29251    1 2   1         0           9989d440          h_execthr
 29307    1 3   0        80           99333a40          atf-check wait
 26269   36 5   1         0           998a1240        rump_server
 26269   23 3   1        80           99b78740        rump_server parked
 26269  149 3   1        80           99b1d180        rump_server parked
 26269  148 3   1        80           99b1a400        rump_server parked
 26269  147 3   1        80           99b13680        rump_server parked
 26269  146 3   1        80           99b0f900        rump_server parked
 26269  145 3   1        80           99b09b80        rump_server parked
 26269  144 3   1        80           99b05b40        rump_server parked
 26269  143 3   1        80           99abc040        rump_server parked
 26269  142 3   1        80           99abb500        rump_server parked
 26269  141 3   1        80           99ab9780        rump_server parked
 26269  140 3   1        80           99ac5a00        rump_server parked
 26269  139 3   1        80           99ac29c0        rump_server parked
 26269  135 3   1        80           99abcb40        rump_server parked
 26269  133 3   1        80           99b9cc80        rump_server parked
 26269  123 3   1        80           99b57500        rump_server parked
 26269   82 3   1        80           99b7b4c0        rump_server parked
 26269   22 3   1        80           99378640        rump_server poll
 26269   21 3   1        80           943a1300        vmem_rehash parked
 26269   20 3   1        80           943e63c0           aiodoned parked
 26269   19 3   0        80           998a3040            ioflush nanoslp
 26269   18 3   0        80           931f9700            cachegc nanoslp
 26269   17 3   1        80           943e6680             vdrain parked
 26269   16 3   1        80           94397500            pdaemon parked
 26269   15 3   1        80           998a3b40            xcall/1 parked
 26269   14 3   1        80           99349a80             sipbnc parked
 26269   13 2   1         0           99325480           rumpclk1
 26269   12 3   1        80           93113140            xcall/0 parked
 26269   11 3   1        80           9938a3c0             rsi1/0 parked
 26269   10 3   1        80           991ce980             rsi0/0 parked
 26269    9 3   1        80           940ec4c0             rsi1/3 parked
 26269    8 3   0        80           998a3880             rsi0/3 parked
 26269    7 3   1        80           998a5b80             rsi1/2 parked
 26269    6 3   0        80           998a0d00             rsi0/2 parked
 26269    5 3   0        80           943e3640             sipbnc parked
 26269    4 2   1         0           9938fc40           rumpclk0
 26269    3 3   1        80           99373080             rsi1/1 parked
 26269    2 3   0        80           9938f980             rsi0/1 parked
 26269    1 3   0        80           943a1880        rump_server psem
 6297     1 3   1        80           998a17c0                 sh wait
 1457     1 3   0        80           940ecd00               tail kqueue
 983      1 3   0        80           94397240               tcsh pause
 423      1 3   0        80           940ec780               sshd select
 693      1 3   0        80           930b5100               sshd poll
 675      1 3   0        80           93113980                tee pipe_rd
 652      1 3   0        80           931f99c0         atf-report pipe_rd
 139      1 3   0        80           9326b740                tee pipe_rd
 564      1 2   1   1000000           9326b1c0            atf-run
 591      1 3   0        80           92e72cc0                 sh wait
 637      1 3   1        80           930b5680                 sh wait
 539      1 3   0        80           9307fbc0              login wait
 521      1 3   0        80           9326ba00               cron nanoslp
 403      1 3   1        80           931136c0              inetd kqueue
 462      1 3   0        80           9326b480               sshd select
 412      1 2   1   1000000           93113c40               ntpd
 170      1 3   0        80           931f9180            rpcbind poll
 260      1 3   0        80           931f9440            syslogd kqueue
 223      1 2   1         0           930b5c00             dhcpcd
 1        1 3   0        80           92fe6340               init wait
 0       55 3   0       200           993334c0             ktrace ktrwait
 0       36 3   0       200           92fe6b80            physiod physiod
 0       59 3   0       200           9307f900           aiodoned aiodoned
 0       58 2   1       200           9307f640            ioflush
 0       57 3   0       200           9307f380          pooldrain xclocv
 0    >  56 7   1  20000200           9307f0c0           pgdaemon
 0       35 3   0       200           92e72a00               usb3 usbevt
 0       34 3   0       200           92e72740               usb2 usbevt
 0       33 3   0       200           92e72480               usb1 usbevt
 0       54 3   0       200           92fe68c0               usb0 usbevt
 0       53 2   1       200           92fe6600            npfgc-0
 0       52 3   0       200           92fe6080            rt_free rt_free
 0       51 3   0       200           92fdfb40              unpgc unpgc
 0       50 3   0       200           92fdf880    key_timehandler key_timeha=
 ndler
 
 0       49 3   1       200           92fdf5c0    icmp6_wqinput/1 icmp6_wqin=
 put
 0       48 3   0       200           92fdf300    icmp6_wqinput/0 icmp6_wqin=
 put
 0       47 3   0       200           92fdf040          nd6_timer nd6_timer
 0       46 3   1       200           92e97d40    carp6_wqinput/1 carp6_wqin=
 put
 0       45 3   0       200           92e97a80    carp6_wqinput/0 carp6_wqin=
 put
 0       44 3   1       200           92e977c0     carp_wqinput/1 carp_wqinp=
 ut
 0       40 3   0       200           92e721c0     carp_wqinput/0 carp_wqinp=
 ut
 0       39 3   1       200           92e924c0     icmp_wqinput/1 icmp_wqinp=
 ut
 0       38 3   0       200           92e92780     icmp_wqinput/0 icmp_wqinp=
 ut
 0       37 3   0       200           92e92200           rt_timer rt_timer
 0       32 2   1       200           92e92a40        vmem_rehash
 0       43 3   0       200           92e97500             sdmmc1 mmctaskq
 0       42 3   0       200           92e97240             sdmmc0 mmctaskq
 0       41 3   0       200           92e92d00            axp20x0 axp20x0
 0       31 2   1       200           92e1bc80               iic2
 0       30 2   1       200           92e1b9c0               iic1
 0       29 3   1       200           92e1b700            atabus0 atath
 0       28 3   0       200           92e1b440         usbtask-dr usbtsk
 0       27 3   0       200           92e1b180         usbtask-hc usbtsk
 0       26 2   1       200           92a0dc40               iic0
 0       25 2   1       200           92a0d980            xcall/1
 0       24 1   1       200           92a0d6c0          softser/1
 0       23 1   1       200           92a0d400          softclk/1
 0       22 1   1       200           92a0d140          softbio/1
 0       21 1   1       200           929f8c00          softnet/1
 0       20 1   1       201           929f8940             idle/1
 0       19 3   0       200           929f8680           lnxpwrwq lnxpwrwq
 0       18 3   0       200           929f83c0           lnxlngwq lnxlngwq
 0       17 3   0       200           929f8100           lnxsyswq lnxsyswq
 0       16 3   0       200           929f3bc0           lnxrcugc lnxrcugc
 0       15 3   0       200           929f3900             sysmon smtaskq
 0       14 3   0       200           929f3640         pmfsuspend pmfsuspend
 0       13 3   0       200           929f3380           pmfevent pmfevent
 0       12 3   0       200           929f30c0         sopendfree sopendfr
 0       11 3   0       200           928dbb80           nfssilly nfssilly
 0       10 2   1       200           928db8c0            cachegc
 0        9 3   0       200           928db600             vdrain vdrain
 0        8 3   0       200           928db340          modunload mod_unld
 0        7 3   0       200           928db080            xcall/0 xcall
 0        6 1   0       200           928d8b40          softser/0
 0    >   5 7   0  20000200           928d8880          softclk/0
 0        4 1   0       200           928d85c0          softbio/0
 0        3 1   0       200           928d8300          softnet/0
 0    >   2 7   0  20000201           928d8040             idle/0
 0        1 3   0       200           807ec580            swapper uvm
 db{0}> bt =08 =08/ =08 =08a 20000200
 address 0x20000200 is invalid
 trace: pid 1644185827 lid -2136022476
 [ 9397.2142093] uvm_fault(0x80aea758, c01000, 1) -> e
 [ 9397.2142093] Fatal kernel mode data abort: 'Translation Fault (S)'
 [ 9397.2142093] trapframe: 0x9ba5b550
 [ 9397.2142093] FSR=3D00000005, FAR=3D00c01661, spsr=3D600b0213
 [ 9397.2142093] r0 =3D806b2360, r1 =3D00000010, r2 =3D8f7f9aa7, r3 =3D00c01=
 655
 [ 9397.2142093] r4 =3D20000200, r5 =3D8047c0ac, r6 =3D80a82408, r7 =3D9ba5b=
 880
 [ 9397.2142093] r8 =3D807e1088, r9 =3D0000ffff, r10=3D00000000, r11=3D9ba5b=
 b5c
 [ 9397.2142093] r12=3D9ba5b460, ssp=3D9ba5b5a0, slr=3D8047bb98, pc =3D80083=
 618
 
  Faulted in DDB; continuing...
 db{0}> bt/a 9307f0c0
 trace: pid 0 lid 56 at 0x9be03ea4
 0x9be03ea4: 10
 --- tf 0x9be03fb0 ---
 db{0}> c
 


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