tstile in less than a day

Are there known locking issues with MP sparc64? I got this in less than a 
day of compiling (after setting SSIZE to 4). This is on an NFS mount.

Now that I have a kernel compiled with LOCKDEBUG, it, so far, seems fine.



login: ~
SC Alert: SC Request to send Break to host.
Stopped in pid 0.16 (system) at netbsd:cpu_Debugger+0x4:        nop
db{1}>
db{1}> bt
sparc_interrupt(3dc848000, 3dc848000, 3200, 51eb851f, 32, 0) at 
netbsd:sparc_int
errupt+0x294
db{1}> ps
PID    LID S CPU     FLAGS       STRUCT LWP *               NAME WAIT
5159     1 3   1         0          113628a00               halt tstile
22331    1 3   0         0          1136285e0             reboot tstile
5090     1 3   1        80          112a0b9e0               tcsh pause
7443     1 3   1         0          1136281c0                 sh nfsrcv
27114    1 3   1         0          11235f580                 sh wait
10734    1 3   0   1000000          112a0b1a0         cc-wrapper tstile
12389    1 3   1   1000000          1135ff640         cc-wrapper netio
534      1 3   1   1000000          1124fc520              gmake nfsrcv
2669     1 3   1        80          1162b7aa0                 sh wait
20156    1 3   1         0          113628e20               make tstile
24617    1 3   1        80          112a0a540                 sh wait
21753    1 3   1         0          1124fd180               make nfsrcv
18941    1 3   1        80          1134dba20                 sh wait
14511    1 3   1        80          11235f9a0                 sh wait
73       1 3   0        80          1134da9a0               tcsh pause
632      1 3   0        80          1134db1e0               tcsh pause
48       1 3   1        80          112204900               tcsh pause
405      1 3   1        80          1134db600               tmux kqueue
580      1 3   0        80          1122040c0               tcsh pause
797      1 3   1        80          112a0ad80               sshd select
722      1 3   1        80          112a0a120               sshd select



sparky# ps axl -O laddr | grep tile
    0 22331 1136285e0     1     0 127 -20   5968   1032 tstile D<s  ? 
0:00.11 reboot
    0  5159 113628a00  5090     0 117   0   7008   1520 tstile D+   pts/0 
0:00.08 halt
1000 10734 112a0b1a0     1 28317 127   0   6944   1272 tstile D    pts/1 
0:00.02 gcc -E
1000 20156 113628e20 24617     0 117   0  14448   8328 tstile D    pts/1 
0:01.39 /usr/bi


john    10734  0.0  0.0   6944   1272 pts/1  D     6:53PM 0:00.02 gcc -E 
-P -x c++ -DLANGUAGE_GOBJECT=1 -DENABLE
_DIRECTORY_UPLOAD=0 -DENABLE_MEDIA_STREAM=0 
-DENABLE_CSS_BOX_DECORATION_BREAK=1 -DENABLE_BLOB=1 
-DENABLE_REQUEST_ANIMATION_FRAME=1 -DENABLE_METER_ELEMENT=1 
-DENABLE_LEGACY_NOTIFICATIONS=0 -DENABLE_WEB_AUDIO=1 
-DENABLE_DOM4_EVENTS_CONSTRUCTOR=0 -DENABLE_LINK_PREFETCH=0 
-DENABLE_CHANNEL_MESSAGING=1 -DENABLE_IFRAME_SEAMLESS=1 -DENABLE_3D
_RENDERING=1 -DENABLE_INPUT_TYPE_DATE=0 
-DENABLE_INPUT_TYPE_DATETIMELOCAL=0 -DENABLE_CSS_EXCLUSIONS=0 
-DENABLE_CSS_FILTERS=1 -DENABLE_FILTERS=1 -DENABLE_XHR_TIMEOUT=1 
-DENABLE_PROXIMITY_EVENTS=0 -DENABLE_VIDEO_TRACK=1 -DENAB
LE_CUSTOM_SCHEME_HANDLER=0 -DENABLE_CSS3_TEXT=0 
-DENABLE_SATURATED_LAYOUT_ARITHMETIC=1 -DENABLE_ORIENTATION_EVENTS=0 
-DENABLE_NAVIGATOR_CONTENT_UTILS=0 -DENABLE_GAMEPAD=0 
-DENABLE_MOUSE_CURSOR_SCALE=0 -DENABLE_DASHBOARD_SUPP
ORT=0 -DENABLE_INPUT_TYPE_TIME=0 -DENABLE_CSS_IMAGE_ORIENTATION=0 
-DENABLE_WEBGL=1 -DENABLE_RESOURCE_TIMING=0 -D
ENABLE_CANVAS_PATH=0 -DENABLE_WEB_SOCKETS=1 -DENABLE_TEMPLATE_ELEMENT=1 
-DENABLE_DATALIST_ELEMENT=0 -DENABLE_GEO
LOCATION=0 -DENABLE_CSS_TRANSFORMS_ANIMATIONS_UNPREFIXED=0 
-DENABLE_NETSCAPE_PLUGIN_API=1 -DENABLE_TEXT_AUTOSIZI
NG=0 -DENABLE_INSPECTOR=1 -DENABLE_CANVAS_PROXY=0 
-DENABLE_DOWNLOAD_ATTRIBUTE=0 -DENABLE_MEDIA_CAPTURE=0 
-DENABLE_SHADOW_DOM=0 -DENABLE_VIBRATION=0 -DENABLE_FONT_LOAD_EVENTS=0 
-DENABLE_LEGACY_CSS_VENDOR_PREFIXES=0 -DENABLE_C
SS3_CONDITIONAL_RULES=0 -DENABLE_MHTML=1 -DENABLE_DEVICE_ORIENTATION=0 
-DENABLE_DETAILS_ELEMENT=1 -DENABLE_SUBPIXEL_LAYOUT=1 
-DENABLE_CSS_DEVICE_ADAPTATION=0 -DENABLE_CSP_NEXT=0 
-DENABLE_CSS_REGIONS=1 -DENABLE_INDEXED_DATABA
SE=0 -DENABLE_VIEW_MODE_CSS_MEDIA=1 -DENABLE_ICONDATABASE=1 
-DENABLE_SQL_DATABASE=1 -DENABLE_LEGACY_VENDOR_PREFIXES=1 
-DENABLE_NOTIFICATIONS=0 -DENABLE_LEGACY_WEB_AUDIO=0 -DENABLE_WEB_TIMING=1 
-DENABLE_MEDIA_SOURCE=0 -DENABL
E_INPUT_TYPE_MONTH=0 -DENABLE_NETWORK_INFO=0 
-DENABLE_CSS_IMAGE_RESOLUTION=0 -DENABLE_DATA_TRANSFER_ITEMS=0 -DEN
ABLE_SCRIPTED_SPEECH=0 -DENABLE_HIGH_DPI_CANVAS=0 
-DENABLE_INPUT_TYPE_DATETIME_INCOMPLETE=0 -DENABLE_SPELLCHECK=1 
-DENABLE_INPUT_TYPE_COLOR=0 -DENABLE_CSS_COMPOSITING=0 -DENABLE_QUOTA=0 
-DENABLE_INPUT_SPEECH=0 -DENABLE_INPUT
_TYPE_WEEK=0 -DENABLE_PROMISES=1 -DENABLE_USER_TIMING=0 
-DENABLE_PAGE_VISIBILITY_API=1 -DENABLE_CSS_SHAPES=0 
-DENABLE_BATTERY_STATUS=0 -DENABLE_ACCELERATED_2D_CANVAS=0 
-DENABLE_CSS_STICKY_POSITION=1 -DENABLE_MEDIA_STATISTICS
=0 -DENABLE_SHARED_WORKERS=1 -DENABLE_TOUCH_ICON_LOADING=0 
-DENABLE_PERFORMANCE_TIMELINE=0 -DENABLE_VIDEO=1 -DENABLE_TOUCH_EVENTS=1 
-DENABLE_CSS_IMAGE_SET=1 -DENABLE_MATHML=1 -DENABLE_FTPDIR=0 
-DENABLE_SMOOTH_SCROLLING=1 -DE
NABLE_FULLSCREEN_API=1 -DENABLE_PROGRESS_ELEMENT=1 
-DENABLE_INDEXED_DATABASE=0 ./Source/WebCore/html/HTMLElement
.idl (cc-wrapper)



db{1}> tr/a 112a0b1a0
trace: pid 10734 lid 1 at 0x3de3a65e1
db{1}> whatis 0x3de3a65e1
0x3de3a65e1 is 0x3de3a0430+25009, LWP 0x112a0b1a0's stack
0x3de3a65e1 is 0x3de3a0000+26081 in POOL 'uarea' (allocated)
0x3de3a65e1 is 0x3de330000+484833 from VMMAP 0x1cd9860
db{1}> tr/a 113628e20
trace: pid 20156 lid 1 at 0x3deac2a21
db{1}> whatis 0x3deac2a21
0x3deac2a21 is 0x3deabc430+26097, LWP 0x113628e20's stack
0x3deac2a21 is 0x3deabc000+27169 in POOL 'uarea' (allocated)
0x3deac2a21 is 0x3deabc000+27169 from VMMAP 0x1cd9860


db{1}> call fstrans_dump(0)
Fstrans locks by lwp:
5159.1   (/usr/sandbox/usr/pkgsrc) shared 1 cow 0
22331.1  (/usr/sandbox/usr/pkgsrc) shared 2 cow 0
7443.1   (/usr/sandbox/usr/pkgsrc) shared 1 cow 0
10734.1  (/usr/sandbox/usr/pkgsrc) shared 2 cow 0
12389.1  (/usr/sandbox/usr/pkgsrc) shared 3 cow 0
534.1    (/usr/sandbox/usr/pkgsrc) shared 1 cow 0
20156.1  (/usr/sandbox/usr/pkgsrc) shared 1 cow 0
21753.1  (/usr/sandbox/usr/pkgsrc) shared 1 cow 0
0.53     (/usr/sandbox/usr/pkgsrc) shared 2 cow 0
Fstrans state by mount:
0


db{1}> call dumpsys
Frame pointer is at 0xe0046ca1
Call traceback:
  netbsd:db_fncall+0xa0(0, 0, 0, 0, 1c96000, 1c9e1e0) fp = e0046d61
  netbsd:db_command+0xa8(112a0b1a0, 0, ffffffffffffffff, 10449e0, 2, b) fp 
= e0046e91
  netbsd:db_command_loop+0xb8(1c63a38, 0, 1cccc00, 1c63800, 18843e8, 
1c88a08) fp = e0046fd1
  netbsd:db_trap+0x104(1055768, 0, 193aa00, 1c63800, 1cccc00, 1c63a38) fp = 
e00470b1
  netbsd:kdb_trap+0xdc(101, 0, 0, e0048000, 1ccdc00, 0) fp = e0047171
  netbsd:trap+0x324(101, e0047c40, f, 1c03800, 1c00000, 1ce6000) fp = 
e0047221
  netbsd:1011490+0(e0047c40, 101, 1055760, 150006, 1c88a08, e0048000) fp = 
e0047391
  netbsd:comintr+0x574(112061ff0, 112061ff1, 11205c1c8, 100, f9, 
7fff2000085) fp = e0047571
  netbsd:sparc_interrupt+0x294(112061e08, 112061ff0, 1ce07f8, 112061e78, 1, 
11206615c) fp = e0047621
  netbsd:sched_idle+0x108(3dc848000, 3dc848000, 3200, 51eb851f, 32, 0) fp = 
3dc83f4c1

dumping to dev 7,1 offset 95
Skipping crash dump on recursive panic
panic: cpu1: ipi_send: couldn't send ipi to UPAID 1 (tried 10000 times)
cpu1: Begin traceback...
cpu1: End traceback...

cpu1: rebooting