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Re: something's wrong



Hello,

Today I met hangup on 2 logical cpu box.

This box runs -current 2013.11.15.16.06.06 UTC with LOCKDEBUG.
I was doing ./build release for amd64 from HEAD tree
and running systat on console.
There are no network traffics other than ntp and incoming bcast/mcast.

There are no processes waiting on xchicv.
All tstile process waits on proc_lock.

I'll try to do same ./build on main build box w/ 8 threads.


fatal breakpoint trap in supervisor mode
trap type 1 code 0 rip ffffffff8015716d cs 8 rflags 202 cr2 7f7ff780c3d0 ilevel 
8 rsp fffffe8001003a78
curlwp 0xfffffe813fb27880 pid 0.2 lowest kstack 0xfffffe8001000000
Stopped in pid 0.2 (system) at  netbsd:breakpoint+0x5:  leave
db{0}> ps
PID    LID S CPU     FLAGS       STRUCT LWP *               NAME WAIT
219      1 3   1         0   fffffe811bee9980                 as tstile
17285    1 3   1         0   fffffe81108ef560   x86_64--netbsd-o tstile
8698     1 3   0         0   fffffe810c426000                cc1 tstile
14847    1 3   0         0   fffffe811bee9540   x86_64--netbsd-g tstile
24274    1 3   0        80   fffffe811fdea4e0                 sh wait
14676    1 3   0     40000   fffffe81116b0140                 sh wait
4749     1 3   0     40000   fffffe81393ceb00   x86_64--netbsd-g tstile
16793    1 3   1     40080   fffffe81393ce6c0                 sh wait
24919    1 3   0         0   fffffe81209a74a0             nbmake tstile
19658    1 3   0        80   fffffe810912b600                 sh wait
29251    1 3   0         0   fffffe811d12a500             nbmake tstile
29617    1 3   0        80   fffffe813b4a7260                 sh wait
22220    1 3   0         0   fffffe813b4a76a0             nbmake tstile
14891    1 3   1        80   fffffe8111365040                 sh wait
15721    1 3   1        80   fffffe811fdea0a0             nbmake wait
10358    1 3   1        80   fffffe810afe62e0                 sh wait
4902     1 3   0         0   fffffe81393ce280             nbmake tstile
16408    1 3   0        80   fffffe81209a78e0                 sh wait
25141    1 3   0         0   fffffe813e634240             nbmake tstile
21682    1 3   0         0   fffffe8121c2b0e0             systat tstile
2631     1 3   0        80   fffffe8119ee52a0                 sh wait
2172     1 3   0         0   fffffe813f1a3600             nbmake tstile
2449     1 3   0        80   fffffe813d9712c0                 sh wait
2552     1 3   0         0   fffffe813e634680             nbmake tstile
2121     1 3   0        80   fffffe813d971b40                 sh wait
2206     1 3   0         0   fffffe81076ec1a0             nbmake tstile
538      1 3   0        80   fffffe813e634ac0                 sh wait
556      1 3   1        80   fffffe813f1a3a40                 sh wait
559      1 3   1        80   fffffe813f1e9a60                 sh wait
379      1 3   1        80   fffffe813f1a31c0               tcsh pause
372      1 3   1        80   fffffe81076ec5e0              login wait
341      1 3   0        80   fffffe813d8a7220               sshd select
311      1 3   0        80   fffffe813f1e9620             powerd kqueue
301      1 3   1        80   fffffe813eedc200               ntpd pause
176      1 2   0         0   fffffe813d8a7660            syslogd
1        1 3   1        80   fffffe810779c160               init wait
0       52 3   0       200   fffffe813eedca80            physiod physiod
0       51 3   0       200   fffffe81076eca20           aiodoned aiodoned
0       50 3   0       200   fffffe810775a120            ioflush syncer
0       49 3   0       200   fffffe810781c180           pgdaemon pgdaemon
0       45 3   1       200   fffffe810775a560               usb4 usbevt
0       44 3   1       200   fffffe810775a9a0               usb3 usbevt
0       43 3   0       200   fffffe810763f100               usb2 usbevt
0       42 3   0       200   fffffe810763f540               usb1 usbevt
0       41 3   0       200   fffffe810775b9c0               usb0 usbevt
0       40 3   0       200   fffffe810781c5c0               usb5 usbevt
0       39 3   0       200   fffffe810781ca00              npfgc npfgccv
0       38 3   0       200   fffffe810775b580              unpgc unpgc
0       37 3   1       200   fffffe810775b140        vmem_rehash vmem_rehash
0       36 3   0       200   fffffe810779c5a0          coretemp1 coretemp1
0       35 3   1       200   fffffe810779c9e0          coretemp0 coretemp0
0       26 3   0       200   fffffe810763f980            atabus1 atath
0       25 3   1       200   fffffe81076210e0            atabus0 atath
0       24 3   0       200   fffffe8107621520         usbtask-dr usbtsk
0       23 3   0       200   fffffe8107621960         usbtask-hc usbtsk
0       22 3   1       200   fffffe81074ef0c0            xcall/1 xcall
0       21 1   1       200   fffffe81074ef500          softser/1
0       20 3   1       200   fffffe81074ef940          softclk/1 tstile
0       19 1   1       200   fffffe81074b00a0          softbio/1
0       18 1   1       200   fffffe81074b04e0          softnet/1
0    >  17 7   1       201   fffffe81074b0920             idle/1
0       16 3   0       200   fffffe813f37a080             sysmon smtaskq
0       15 3   0       200   fffffe813f37a4c0         pmfsuspend pmfsuspend
0       14 3   0       200   fffffe813f37a900           pmfevent pmfevent
0       13 3   0       200   fffffe813f70c060         sopendfree sopendfr
0       12 3   0       200   fffffe813f70c4a0           nfssilly nfssilly
0       11 3   0       200   fffffe813f70c8e0            cachegc cachegc
0       10 3   1       200   fffffe813fb10040              vrele vrele
0        9 3   0       200   fffffe813fb10480             vdrain vdrain
0        8 3   0       200   fffffe813fb108c0          modunload mod_unld
0        7 3   0       200   fffffe813fb1c020            xcall/0 xcall
0        6 1   0       200   fffffe813fb1c460          softser/0
0        5 3   0       200   fffffe813fb1c8a0          softclk/0 tstile
0        4 1   0       200   fffffe813fb27000          softbio/0
0        3 1   0       200   fffffe813fb27440          softnet/0
0    >   2 7   0       201   fffffe813fb27880             idle/0
0        1 3   0       200   ffffffff806c39e0            swapper tstile
db{0}> ps/w
PID   LID          COMMAND     EMUL  PRI WAIT-MSG    WAIT-CHANNEL
219      1               as   netbsd   30 tstile       fffffe813fda5f00
17285    1 x86_64--netbsd-o   netbsd   30 tstile       fffffe813fda5f00
8698     1              cc1   netbsd   26 tstile       fffffe813fda5f00
14847    1 x86_64--netbsd-g   netbsd   30 tstile       fffffe813fda5f00
24274    1               sh   netbsd   30 wait         fffffe810ff26d20
14676    1               sh   netbsd   30 wait         fffffe8107793550
4749     1 x86_64--netbsd-g   netbsd   30 tstile       fffffe813fda5f00
16793    1               sh   netbsd   30 wait         fffffe8139973580
24919    1           nbmake   netbsd   30 tstile       fffffe813fda5f00
19658    1               sh   netbsd   27 wait         fffffe811e1a9d48
29251    1           nbmake   netbsd   41 tstile       fffffe813fda5f00
29617    1               sh   netbsd   28 wait         fffffe8111530ac8
22220    1           nbmake   netbsd   42 tstile       fffffe813fda5f00
14891    1               sh   netbsd   28 wait         fffffe813d9b3578
15721    1           nbmake   netbsd   28 wait         fffffe8139973d30
10358    1               sh   netbsd   27 wait         fffffe81115305a8
4902     1           nbmake   netbsd   43 tstile       fffffe813fda5f00
16408    1               sh   netbsd   27 wait         fffffe811d069ac0
25141    1           nbmake   netbsd   43 tstile       fffffe813fda5f00
21682    1           systat   netbsd   43 tstile       fffffe813fda5f00
2631     1               sh   netbsd   27 wait         fffffe810ff26a90
2172     1           nbmake   netbsd   43 tstile       fffffe813fda5f00
2449     1               sh   netbsd   36 wait         fffffe810ff262e0
2552     1           nbmake   netbsd   43 tstile       fffffe813fda5f00
2121     1               sh   netbsd   36 wait         fffffe810ff26800
2206     1           nbmake   netbsd   43 tstile       fffffe813fda5f00
538      1               sh   netbsd   37 wait         fffffe813ef277e8
556      1               sh   netbsd   43 wait         fffffe81077937e0
559      1               sh   netbsd   43 wait         fffffe813ef27d08
379      1             tcsh   netbsd   43 pause        fffffe813f1a31c0
372      1            login   netbsd   43 wait         fffffe8107793a70
341      1             sshd   netbsd   43 select       fffffe813fd9bb80
311      1           powerd   netbsd   43 kqueue       fffffe813e2e06e8
301      1             ntpd   netbsd   43 pause        fffffe813eedc200
176      1          syslogd   netbsd   43              0
1        1             init   netbsd   43 wait         fffffe8107793d00
0       52           system   netbsd  123 physiod      fffffe813f35dd88
0       51           system   netbsd  125 aiodoned     fffffe813f35de88
0       50           system   netbsd  124 syncer       fffffe810775a120
0       49           system   netbsd  126 pgdaemon     ffffffff8074d39c
0       45           system   netbsd   96 usbevt       fffffe8107626470
0       44           system   netbsd   96 usbevt       ffff800007720430
0       43           system   netbsd   96 usbevt       ffff80000771e430
0       42           system   netbsd   96 usbevt       ffff80000771c430
0       41           system   netbsd   96 usbevt       ffff80000771a430
0       40           system   netbsd   96 usbevt       fffffe8107514480
0       39           system   netbsd   96 npfgccv      ffffffff806ea7b0
0       38           system   netbsd   96 unpgc        ffffffff8074b400
0       37           system   netbsd  125 vmem_rehash  fffffe813fb21308
0       36           system   netbsd   43 coretemp1    fffffe813fb214c8
0       35           system   netbsd   43 coretemp0    fffffe813fb215c8
0       26           system   netbsd   96 atath        fffffe810763b5f0
0       25           system   netbsd   96 atath        fffffe810763b368
0       24           system   netbsd   96 usbtsk       ffffffff8074b538
0       23           system   netbsd   96 usbtsk       ffffffff8074b4f8
0       22           system   netbsd  127 xcall        fffffe81074ae0d8
0       21           system   netbsd  223              0
0       20           system   netbsd  220 tstile       fffffe813fda5f00
0       19           system   netbsd  221              0
0       18           system   netbsd  222              0
0    >  17           system   netbsd    0              0
0       16           system   netbsd   96 smtaskq      ffffffff807482a0
0       15           system   netbsd   43 pmfsuspend   fffffe813fb21cc8
0       14           system   netbsd   43 pmfevent     fffffe813fb21d88
0       13           system   netbsd   96 sopendfr     ffffffff8074b3a0
0       12           system   netbsd   43 nfssilly     fffffe813fb21e88
0       11           system   netbsd  125 cachegc      fffffe813f70c8e0
0       10           system   netbsd  125 vrele        ffffffff806d0a80
0        9           system   netbsd  125 vdrain       ffffffff806d0b00
0        8           system   netbsd  125 mod_unld     ffffffff806dd770
0        7           system   netbsd  127 xcall        ffffffff806bc6d8
0        6           system   netbsd  223              0
0        5           system   netbsd  220 tstile       fffffe813fda5f00
0        4           system   netbsd  221              0
0        3           system   netbsd  222              0
0    >   2           system   netbsd    0              0
0        1           system   netbsd  125 tstile       fffffe813fda5f00
db{0}> show lock fffffe813fda5f00
lock address : 0xfffffe813fda5f00 type     :     sleep/adaptive
initialized  : 0xffffffff80269a5d
shared holds :                  0 exclusive:                  1
shares wanted:                  0 exclusive:                 17
current cpu  :                  0 last held:                  0
current lwp  : 0xfffffe813fb27880 last held: 0xfffffe8119ba9a00
last locked* : 0xffffffff8025cf2e unlocked : 0xffffffff8025bb77
owner field  : 0xfffffe8119ba9a00 wait/spin:                1/0

Turnstile chain at 0xffffffff806cf2c0.
=> Turnstile at 0xfffffe813f0e4488 (wrq=0xfffffe813f0e44a8, rdq=0xfffffe813f0e44
b8).
=> 0 waiting readers:
=> 17 waiting writers: 0xfffffe81074ef940 0xfffffe813fb1c8a0 0xffffffff806c39e0 0
xfffffe8121c2b0e0 0xfffffe813b4a76a0 0xfffffe81393ce280 0xfffffe813e634240 0xfff
ffe813f1a3600 0xfffffe813e634680 0xfffffe81076ec1a0 0xfffffe811d12a500 0xfffffe8
11bee9540 0xfffffe81393ceb00 0xfffffe81108ef560 0xfffffe811bee9980 0xfffffe81209
a74a0 0xfffffe810c426000
db{0}> p *proc_lock
fffffe813fda5f00
db{0}> bt/a fffffe813d8a7660
trace: pid 176 lid 1 at 0xfffffe80013db980
sleepq_block() at netbsd:sleepq_block+0xf0
cv_timedwait_sig() at netbsd:cv_timedwait_sig+0x126
kevent1() at netbsd:kevent1+0x478
sys___kevent50() at netbsd:sys___kevent50+0x33
syscall() at netbsd:syscall+0x9a
--- syscall (number 435) ---
7f7ff5e3b08a:
db{0}> bt/a fffffe81074b0920
trace: pid 0 lid 17 at 0xfffffe800103fc20
idle_loop() at netbsd:idle_loop+0x196
cpu_hatch() at netbsd:cpu_hatch+0x17b
mpbios_pci_attach_hook() at netbsd:mpbios_pci_attach_hook+0x22b
db{0}> bt/a fffffe813fb27880
trace: pid 0 lid 2 at 0xfffffe8001003a78
breakpoint() at netbsd:breakpoint+0x5
comintr() at netbsd:comintr+0x51d
Xintr_ioapic_edge1() at netbsd:Xintr_ioapic_edge1+0xea
--- interrupt ---
x86_stihlt() at netbsd:x86_stihlt+0x6
acpicpu_cstate_idle_enter() at netbsd:acpicpu_cstate_idle_enter+0x48
acpicpu_cstate_idle() at netbsd:acpicpu_cstate_idle+0xbc
idle_loop() at netbsd:idle_loop+0x196
db{0}> bt/a fffffe811bee9980
trace: pid 219 lid 1 at 0xfffffe8001463a70
sleepq_block() at netbsd:sleepq_block+0xa4
turnstile_block() at netbsd:turnstile_block+0x34e
mutex_enter() at netbsd:mutex_enter+0x2e4
exit1() at netbsd:exit1+0x1a3
sys_exit() at netbsd:sys_exit+0x3e
syscall() at netbsd:syscall+0x9a
--- syscall (number 1) ---
7f7ff710b89a:
db{0}> bt/a fffffe81108ef560
trace: pid 17285 lid 1 at 0xfffffe800148f800
sleepq_block() at netbsd:sleepq_block+0xa4
turnstile_block() at netbsd:turnstile_block+0x34e
mutex_enter() at netbsd:mutex_enter+0x2e4
execve_runproc() at netbsd:execve_runproc+0xb54
execve1() at netbsd:execve1+0x40
syscall() at netbsd:syscall+0x9a
--- syscall (number 59) ---
7f7ff6c3b12a:
db{0}> bt/a fffffe810c426000
trace: pid 8698 lid 1 at 0xfffffe8001453a70
sleepq_block() at netbsd:sleepq_block+0xa4
turnstile_block() at netbsd:turnstile_block+0x34e
mutex_enter() at netbsd:mutex_enter+0x2e4
exit1() at netbsd:exit1+0x1a3
sys_exit() at netbsd:sys_exit+0x3e
syscall() at netbsd:syscall+0x9a
--- syscall (number 1) ---
7f7ff6d0b89a:
db{0}> bt/a fffffe811bee9540
trace: pid 14847 lid 1 at 0xfffffe80014db9e0
sleepq_block() at netbsd:sleepq_block+0xa4
turnstile_block() at netbsd:turnstile_block+0x34e
mutex_enter() at netbsd:mutex_enter+0x2e4
cv_wait() at netbsd:cv_wait+0x122
fork1() at netbsd:fork1+0x795
sys___vfork14() at netbsd:sys___vfork14+0x35
syscall() at netbsd:syscall+0x9a
--- syscall (number 282) ---
7f7ff7480a0c:
db{0}> bt/a fffffe81393ceb00
trace: pid 4749 lid 1 at 0xfffffe800141f970
sleepq_block() at netbsd:sleepq_block+0xa4
turnstile_block() at netbsd:turnstile_block+0x34e
mutex_enter() at netbsd:mutex_enter+0x2e4
cv_wait_sig() at netbsd:cv_wait_sig+0x128
do_sys_wait() at netbsd:do_sys_wait+0x213
sys___wait450() at netbsd:sys___wait450+0x3c
syscall() at netbsd:syscall+0x9a
--- syscall (number 449) ---
7f7ff743ad2a:
db{0}> bt/a fffffe81209a74a0
trace: pid 24919 lid 1 at 0xfffffe80014079b0
sleepq_block() at netbsd:sleepq_block+0xa4
turnstile_block() at netbsd:turnstile_block+0x34e
mutex_enter() at netbsd:mutex_enter+0x2e4
do_sys_wait() at netbsd:do_sys_wait+0x4e
sys___wait450() at netbsd:sys___wait450+0x3c
syscall() at netbsd:syscall+0x9a
--- syscall (number 449) ---
7f7ff743ad2a:
db{0}> bt/a fffffe811d12a500
trace: pid 29251 lid 1 at 0xfffffe80013c79b0
sleepq_block() at netbsd:sleepq_block+0xa4
turnstile_block() at netbsd:turnstile_block+0x34e
mutex_enter() at netbsd:mutex_enter+0x2e4
do_sys_wait() at netbsd:do_sys_wait+0x4e
sys___wait450() at netbsd:sys___wait450+0x3c
syscall() at netbsd:syscall+0x9a
--- syscall (number 449) ---
7f7ff743ad2a:
db{0}> bt/a fffffe813b4a76a0
trace: pid 22220 lid 1 at 0xfffffe80014cb9b0
sleepq_block() at netbsd:sleepq_block+0xa4
turnstile_block() at netbsd:turnstile_block+0x34e
mutex_enter() at netbsd:mutex_enter+0x2e4
do_sys_wait() at netbsd:do_sys_wait+0x4e
sys___wait450() at netbsd:sys___wait450+0x3c
syscall() at netbsd:syscall+0x9a
--- syscall (number 449) ---
7f7ff743ad2a:
db{0}> bt/a fffffe81393ce280
trace: pid 4902 lid 1 at 0xfffffe800145f9b0
sleepq_block() at netbsd:sleepq_block+0xa4
turnstile_block() at netbsd:turnstile_block+0x34e
mutex_enter() at netbsd:mutex_enter+0x2e4
do_sys_wait() at netbsd:do_sys_wait+0x4e
sys___wait450() at netbsd:sys___wait450+0x3c
syscall() at netbsd:syscall+0x9a
--- syscall (number 449) ---
7f7ff743ad2a:
db{0}> bt/a fffffe813e634240
trace: pid 25141 lid 1 at 0xfffffe80013eb9b0
sleepq_block() at netbsd:sleepq_block+0xa4
turnstile_block() at netbsd:turnstile_block+0x34e
mutex_enter() at netbsd:mutex_enter+0x2e4
do_sys_wait() at netbsd:do_sys_wait+0x4e
sys___wait450() at netbsd:sys___wait450+0x3c
syscall() at netbsd:syscall+0x9a
--- syscall (number 449) ---
7f7ff743ad2a:
db{0}> bt/a fffffe8121c2b0e0
trace: pid 21682 lid 1 at 0xfffffe80014af8f0
sleepq_block() at netbsd:sleepq_block+0xa4
turnstile_block() at netbsd:turnstile_block+0x34e
mutex_enter() at netbsd:mutex_enter+0x2e4
sysctl_vm_meter() at netbsd:sysctl_vm_meter+0x102
sysctl_dispatch() at netbsd:sysctl_dispatch+0xc6
sys___sysctl() at netbsd:sys___sysctl+0xeb
syscall() at netbsd:syscall+0x9a
--- syscall (number 202) ---
7f7ff60fd8aa:
db{0}> bt/a fffffe813f1a3600
trace: pid 2172 lid 1 at 0xfffffe80013b79b0
sleepq_block() at netbsd:sleepq_block+0xa4
turnstile_block() at netbsd:turnstile_block+0x34e
mutex_enter() at netbsd:mutex_enter+0x2e4
do_sys_wait() at netbsd:do_sys_wait+0x4e
sys___wait450() at netbsd:sys___wait450+0x3c
syscall() at netbsd:syscall+0x9a
--- syscall (number 449) ---
7f7ff743ad2a:
db{0}> bt/a fffffe813e634680
trace: pid 2552 lid 1 at 0xfffffe80013e79b0
sleepq_block() at netbsd:sleepq_block+0xa4
turnstile_block() at netbsd:turnstile_block+0x34e
mutex_enter() at netbsd:mutex_enter+0x2e4
do_sys_wait() at netbsd:do_sys_wait+0x4e
sys___wait450() at netbsd:sys___wait450+0x3c
syscall() at netbsd:syscall+0x9a
--- syscall (number 449) ---
7f7ff743ad2a:
db{0}> bt/a fffffe81076ec1a0
trace: pid 2206 lid 1 at 0xfffffe80013af9b0
sleepq_block() at netbsd:sleepq_block+0xa4
turnstile_block() at netbsd:turnstile_block+0x34e
mutex_enter() at netbsd:mutex_enter+0x2e4
do_sys_wait() at netbsd:do_sys_wait+0x4e
sys___wait450() at netbsd:sys___wait450+0x3c
syscall() at netbsd:syscall+0x9a
--- syscall (number 449) ---
7f7ff743ad2a:
db{0}> bt/a fffffe81074ef940
trace: pid 0 lid 20 at 0xfffffe800104bba0
sleepq_block() at netbsd:sleepq_block+0xa4
turnstile_block() at netbsd:turnstile_block+0x34e
mutex_enter() at netbsd:mutex_enter+0x2e4
timer_intr() at netbsd:timer_intr+0x1d
softint_dispatch() at netbsd:softint_dispatch+0xd9
DDB lost frame for netbsd:Xsoftintr+0x4f, trying 0xfffffe800104bd80
Xsoftintr() at netbsd:Xsoftintr+0x4f
--- interrupt ---
0:
db{0}> bt/a fffffe813fb1c8a0
trace: pid 0 lid 5 at 0xfffffe800100fb10
sleepq_block() at netbsd:sleepq_block+0xa4
turnstile_block() at netbsd:turnstile_block+0x34e
mutex_enter() at netbsd:mutex_enter+0x2e4
ttysigintr() at netbsd:ttysigintr+0x2d
softint_dispatch() at netbsd:softint_dispatch+0xd9
DDB lost frame for netbsd:Xsoftintr+0x4f, trying 0xfffffe800100fd80
Xsoftintr() at netbsd:Xsoftintr+0x4f
--- interrupt ---
0:
db{0}> bt/a ffffffff806c39e0
trace: pid 0 lid 1 at 0xffffffff8080ed60
sleepq_block() at netbsd:sleepq_block+0xa4
turnstile_block() at netbsd:turnstile_block+0x34e
mutex_enter() at netbsd:mutex_enter+0x2e4
sched_pstats() at netbsd:sched_pstats+0x4e
uvm_scheduler() at netbsd:uvm_scheduler+0x4d
main() at netbsd:main+0x6e9
db{0}> bt/a fffffe81074ef500
trace: pid 0 lid 21 at 0x0
db{0}> bt/a fffffe81074b00a0
trace: pid 0 lid 19 at 0x0
db{0}> bt/a fffffe81074b04e0
trace: pid 0 lid 18 at 0x0
db{0}> bt/a fffffe813fb1c460
trace: pid 0 lid 6 at 0x0
db{0}> bt/a fffffe813fb27000
trace: pid 0 lid 4 at 0xffffffff80733130
?() at fffffe8100000000
db{0}> bt/a fffffe813fb27440
trace: pid 0 lid 3 at 0x1
?() at fffffe813d4bea00
fatal page fault in supervisor mode
trap type 6 code 0 rip ffffffff8015bc93 cs 8 rflags 10246 cr2 9 ilevel 8 rsp 
fffffe8001002e10
curlwp 0xfffffe813fb27880 pid 0.2 lowest kstack 0xfffffe8001000000
kernel: page fault trap, code=0
Faulted in DDB; continuing...
db{0}> bt/a fffffe81074ef0c0
trace: pid 0 lid 22 at 0xfffffe8001053c00
sleepq_block() at netbsd:sleepq_block+0xa4
cv_wait() at netbsd:cv_wait+0x11a
xc_thread() at netbsd:xc_thread+0xb9
db{0}> bt/a fffffe813fb1c020
trace: pid 0 lid 7 at 0xfffffe8001017c00
sleepq_block() at netbsd:sleepq_block+0xa4
cv_wait() at netbsd:cv_wait+0x11a
xc_thread() at netbsd:xc_thread+0xb9
db{0}>


Thanks,
--
t-hash



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