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port-sparc/55204: process startup failure: _lwp_ctl: Cannot allocate memory



>Number:         55204
>Category:       port-sparc
>Synopsis:       process startup failure: _lwp_ctl: Cannot allocate memory
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    port-sparc-maintainer
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Fri Apr 24 17:15:00 +0000 2020
>Originator:     Tobias Ulmer
>Release:        9.0_STABLE
>Organization:
>Environment:
NetBSD ss20.tmux.org 9.0_STABLE NetBSD 9.0_STABLE (GENERIC.MP) #1: Thu Apr 23 18:57:02 CEST 2020  tobiasu%ss20.tmux.org@localhost:/home/tobiasu/netbsd/src/sys/arch/sparc/compile/GENERIC.MP sparc
>Description:
HW: 2x150 HyperSPARC 512MB mem 1G swap, dmesg below

After about half a day or so compiling pkgsrc, random processes start to fail with the message "_lwp_ctl: Cannot allocate memory"

tar: _lwp_ctl: Cannot allocate memory

checking with ktruss, this error indeed comes from _lwp_ctl in libc (my guess) startup code.

The system remains wedged in this state with plenty of free memory. Instead of tar, the affected command may also be pkg_info, perl, pkg_admin, etc while others remain unfazed. One time perl didn't start but vim and g++ were happy to compile some c++. Swap is unused.

I've put some instrumentation in the error path for https://nxr.netbsd.org/xref/src/sys/kern/kern_lwp.c#1978

lwp_ctl_alloc: lcp uvm_map returned 12 lp_uao=0xf1831450 lp_cur=0 lp_max=10000 lp_uva=ed180000                                                                      
lwp_ctl_alloc: lcp_uaddr=e lcp_kaddr=f0000000 lcp_nfree=12 lcp_rotor=15 lcp_bitmap[0]=b

showing the lp and lcp struct members in hex

another:

lwp_ctl_alloc: lcp uvm_map returned 12 lp_uao=0xf1e024b8 lp_cur=0 lp_max=10000 lp_uva=ed480000                                                                      
lwp_ctl_alloc: lcp_uaddr=d lcp_kaddr=f0000000 lcp_nfree=12 lcp_rotor=13 lcp_bitmap[0]=b


During one run, this message showed up, but it's not clear if they're related:
autoconfiguration error: xcall(cpu0,0xf0008ea4) from 0xf000ba00: couldn't ping cpus: cpu1

The second CPU seems to work, work scheduled on it was processed fine.


Some vmstat and dmesg output:


     4096 bytes per page
        1 page color
   126764 pages managed
    79092 pages free
    22428 pages active
     1986 pages inactive
        0 pages paging
     2373 pages wired
        0 zero pages
        1 reserve pagedaemon pages
       10 reserve kernel pages
     2476 boot kernel pages
    20502 kernel pool pages
     9174 anonymous pages
    13295 cached file pages
     4318 cached executable pages
      512 minimum free pages
      682 target free pages
    42254 maximum wired pages
        1 swap devices
   262144 swap pages
        0 swap pages in use
        0 swap allocations
 81464102 total faults taken
 74008780 traps
 20738857 device interrupts
  6519934 CPU context switches
 41690049 software interrupts
 40677430 system calls
        0 pagein requests
        0 pageout requests
        0 pages swapped in
        0 pages swapped out
   174681 forks total
   102476 forks blocked parent
   102476 forks shared address space with parent
        0 pagealloc zero wanted and avail
 17388915 pagealloc zero wanted and not avail
        0 aborts of idle page zeroing
 25246580 pagealloc desired color avail
        0 pagealloc desired color not avail
 25159731 pagealloc local cpu avail
    86849 pagealloc local cpu not avail
        0 faults with no memory
        0 faults with no anons
        0 faults had to wait on pages
        0 faults found released page
    18181 faults relock (18179 ok)
  3784363 anon page faults
        0 anon retry faults
  5244053 amap copy faults
  3888776 neighbour anon page faults
 67364837 neighbour object page faults
 19288381 locked pager get faults
    18181 unlocked pager get faults
  2185426 anon faults
  1598940 anon copy on write faults
 14535715 object faults
  4752710 promote copy faults
 17380153 promote zero fill faults
        0 times daemon wokeup
        0 revolutions of the clock hand
        0 pages freed by daemon
        0 pages scanned by daemon
        0 anonymous pages scanned by daemon
        0 object pages scanned by daemon
        0 pages reactivated
        0 pages found busy by daemon
        0 total pending pageouts
        0 pages deactivated
 19827576 total name lookups
 16818896 good hits
  1082687 negative hits
    47656 bad hits
     1019 false hits
  1845634 miss
    31684 too long
   495128 pass2 hits
   520518 2passes
          cache hits (84% pos + 5% neg) system 2% per-process
          deletions 0%, falsehits 0%, toolong 0%




Memory resource pool statistics
Name        Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle
L1 pagetable 1024     156    0        0    39     0    39    39     0   inf    0
L2/L3 pagetable 256 6250872  1  6249730   153     0   153   153     0   inf   73
amappl        48     1477    0        0    18     0    18    18     0   inf    0
anonpl        16    64389    0        0   254     0   254   254     0   inf    0
biopl        192      217    0        0    11     0    11    11     0   inf    0
buf16k      16384     152 4060      103    28    15    13    13     1     1    0
buf1k       1024     4098 1643     3690    18     9     9    12     1     1    0
buf2k       2048     5623 19136    3657   114    52    62    62     1     1    0
buf4k       4096    49361 6373    44729   680   219   461   507     1     1    0
buf512b      512    76884    0    66961   219    56   163   184     1     1    0
buf64k      65536      20    0        0    21     0    21    21     1     1    1
buf8k       8192       14    0       13     2     1     1     2     1     1    0
bufpl        192    30419    0        0  1449     0  1449  1449     0   inf    0
cwdi          64       79    0        0     2     0     2     2     0   inf    0
execargs    262144 150328    0   150328     3     0     3     3     0    16    3
extent        24  1978560    0  1978552     1     0     1     1     0   inf    0
fcrpl        120      631    0      630     2     0     2     2     2   inf    1
fdfile        64      870    0        0    14     0    14    14     0   inf    0
ffsdino1     128    26201    0        0   846     0   846   846     0   inf    0
ffsino       200    26201    0        0  1311     0  1311  1311     0   inf    0
file          64      368    0        0     6     0     6     6     0   inf    0
filedesc     704       79    0        0    16     0    16    16     0   inf    0
in6pcbpl     184     2859    0     2853     1     0     1     1     0   inf    0
inmltpl       32        2    0        0     1     0     1     1     0   inf    0
inpcbpl      144     2250    0     2243     1     0     1     1     0   inf    0
kcpuset       64      120    0        0     2     0     2     2     0   inf    0
kcredpl      192      200    0        0    10     0    10    10     0   inf    0
kmem-1024   1024      760    0        0   190     0   190   190     0   inf    0
kmem-112     112       96    0        0     3     0     3     3     0   inf    0
kmem-128     128      281    0        0    10     0    10    10     0   inf    0
kmem-16       16     1453    0        0     6     0     6     6     0   inf    0
kmem-160     160      330    0        0    14     0    14    14     0   inf    0
kmem-192     192      129    0        0     7     0     7     7     0   inf    0
kmem-2048   2048      101    0        0    51     0    51    51     0   inf    0
kmem-224     224      162    0        0     9     0     9     9     0   inf    0
kmem-24       24      632    0        0     4     0     4     4     0   inf    0
kmem-256     256      114    0        0     8     0     8     8     0   inf    0
kmem-32       32      414    0        0     4     0     4     4     0   inf    0
kmem-320     320      270    0        0    23     0    23    23     0   inf    0
kmem-384     384      198    0        0    20     0    20    20     0   inf    0
kmem-40       40     3804    0        0    38     0    38    38     0   inf    0
kmem-4096   4096       39    0        0    39     0    39    39     0   inf    0
kmem-448     448      245    0        0    28     0    28    28     0   inf    0
kmem-48       48      500    0        0     6     0     6     6     0   inf    0
kmem-512     512       90    0        0    12     0    12    12     0   inf    0
kmem-56       56      299    0        0     5     0     5     5     0   inf    0
kmem-64       64      211    0        0     4     0     4     4     0   inf    0
kmem-768     768      185    0        0    37     0    37    37     0   inf    0
kmem-80       80      686    0        0    14     0    14    14     0   inf    0
kmem-96       96      336    0        0     8     0     8     8     0   inf    0
ksiginfo     120       30    0        0     1     0     1     1     0   inf    0
kva-12288   12288       6    0        0     1     0     1     1     0   inf    0
kva-16384   16384       3    0        0     1     0     1     1     0   inf    0
kva-20480   20480       1    0        0     1     0     1     1     0   inf    0
kva-32768   32768       4    0        0     1     0     1     1     0   inf    0
kva-4096    4096     7679    0        0   120     0   120   120     0   inf    0
kva-65536   65536       2    0        0     1     0     1     1     0   inf    0
kva-8192    8192       10    0        0     1     0     1     1     0   inf    0
llentrypl    184        2    0        0     1     0     1     1     0   inf    0
lockf         64       17    0        0     1     0     1     1     0   inf    0
lwppl        704      119    0        0    24     0    24    24     0   inf    0
mbpl         256       70    0        0     6     0     6     6     1   inf    1
mclpl       2048       66    0        0    37     0    37    37     4  8184    4
mutex         64    27877    0        0   443     0   443   443     0   inf    0
ncache       128    26215    0        0   846     0   846   846     0   inf    0
ncr53c9x_ecb  56   481098    0   481098     2     0     2     2     1   inf    2
pcache       576       88    0        4    12     0    12    12     0   inf    0
pcachecpu     64       90    0        0     2     0     2     2     0   inf    0
pcglarge     512      911    0        0   114     0   114   114     0   inf    0
pcgnormal    128     3426    0        0   111     0   111   111     0   inf    0
pdict16       48      102    0       90     1     0     1     1     0   inf    0
pdict32       64        4    0        0     1     0     1     1     0   inf    0
phpool-128    48      272    0       56     3     0     3     3     0   inf    0
phpool-256    64       10    0        0     1     0     1     1     0   inf    0
phpool-32     32     1680    0      287    12     0    12    12     0   inf    1
phpool-64     40      138    0        9     2     0     2     2     0   inf    0
piperd       216       48    0        0     3     0     3     3     0   inf    0
pipewr       216       50    0        0     3     0     3     3     0   inf    0
plimitpl     216       39    0        0     3     0     3     3     0   inf    0
pmappl      2960       78    0        0    78     0    78    78     0   inf    0
pnbufpl     1024       39    0        0    10     0    10    10     0   inf    0
procpl       576       78    0        0    12     0    12    12     0   inf    0
proparay      32       39    0        0     1     0     1     1     0   inf    0
propdict      32      142    0       47     1     0     1     1     0   inf    0
propnmbr      40       14    0        0     1     0     1     1     0   inf    0
propstng      24      243    0       91     1     0     1     1     0   inf    0
pstatspl     312       78    0        0     6     0     6     6     0   inf    0
ptimerpl     256       56    0       47     1     0     1     1     0   inf    0
ptimerspl    152       56    0       47     1     0     1     1     0   inf    0
pvtable       16 73857149    0 73845053    92     0    92    92     3   inf   36
ractx         32     3912    0        0    31     0    31    31     0   inf    0
rndctx        16       10    0        0     1     0     1     1     0   inf    0
rndsample    528       14    0        0     2     0     2     2     0   586    0
rndtemp      512        3    0        0     1     0     1     1     0   inf    0
rtentpl      216       28    0        2     2     0     2     2     0   inf    0
rwlock        64        6    0        0     1     0     1     1     0   inf    0
sackholepl    24        2    0        2     1     0     1     1     0   inf    1
scxspl       168   481096    0   481096     6     0     6     6     1   inf    6
segmap      1024   668571    0   668468    45     0    45    45     0   inf   17
sigacts     2056       79    0        0    79     0    79    79     0   inf    0
socket       336      141    0        0    12     0    12    12     0   inf    0
synpl        208        1    0        1     1     0     1     1     0   inf    1
tcpcbpl      528      213    0      210     1     0     1     1     0   inf    0
tcpipqepl     32        3    0        3     1     0     1     1     0   inf    1
tmpfs_node   168        1    0        0     1     0     1     1     0   inf    0
tstilepl      56      119    0        0     2     0     2     2     0   inf    0
uarea       8192      119    0        0   119     0   119   119     0   inf    0
ufsdir       264        8    0        0     1     0     1     1     0   inf    0
vcachepl     200    26217    0        0  1311     0  1311  1311     0   inf    0
vmembt        32     1178    0        0    10     0    10    10     0   inf    0
vmmpepl       88     3089    0        0    68     0    68    68     0   inf    0
vmsppl       216       78    0        0     5     0     5     5     0   inf    0
wapbldealloc  24     5656    0     5656     3     0     3     3     0   inf    3
wapblentrypl  24     6939    0     6939     1     0     1     1     0   inf    1
wapblinopl    24   132655    0   132652     1     0     1     1     0   inf    0
Totals           84421932 31213 84125347 9427   352  9075

In use 61489K, total allocated 81892K; utilization 75.1%

Pool cache statistics.
Name          Spin GrpSz Full Emty PoolLayer CacheLayer  Hit%    CpuLayer  Hit%
amappl           0    14   46    4      1477     118703  98.8     6358681  98.1
anonpl          31    62  892    6     64389     493683  87.0    47885943  99.0
biopl            0    14   13    1       217       2184  90.1      199921  98.9
bufpl            0    14  957    9     30419      33792  10.0       82796  59.2
cwdi             0    14    2    0        79       1043  92.4      350742  99.7
fdfile           0    62    5    0       870       1025  15.1      787390  99.9
ffsdino1        15    14  161   27     26201     233782  88.8     3186691  92.7
ffsino          15    14  161   27     26201     233782  88.8     3186691  92.7
file             0    14   10    1       368       2282  83.9     5579876 100.0
filedesc         0    14    2    0        79       1043  92.4      350742  99.7
kcpuset          0    14    0    0       120        120   0.0         120   0.0
kcredpl          0    14    0    1       200        206   2.9      142378  99.9
kmem-1024        0    14   43    1       760       2589  70.6      343693  99.2
kmem-112         0    14    2    2        96        284  66.2      373771  99.9
kmem-128         0    14    5    1       281       8314  96.6     1680503  99.5
kmem-16          2    14   31    3      1453     183500  99.2    16284323  98.9
kmem-160         0    14    5    1       330       1065  69.0      779275  99.9
kmem-192         0    14    4    1       129        679  81.0     1147458  99.9
kmem-2048        0    14    0    1       101        109   7.3      684038 100.0
kmem-224         0    14    3    1       162        803  79.8      875122  99.9
kmem-24          0    14    9    2       632      10879  94.2    15014541  99.9
kmem-256         0    14    2    1       114        614  81.4     2581141 100.0
kmem-32          0    14    4    1       414       1050  60.6      529862  99.8
kmem-320         0    14    7    0       270      13179  98.0     2845412  99.5
kmem-384         0    14    4    1       198       1984  90.0      534513  99.6
kmem-40          0    14   12  245      3804       6050  37.1     1496862  99.6
kmem-4096        0    14    0    0        39         41   4.9      644999 100.0
kmem-448         0    14    6    1       245       4805  94.9      617362  99.2
kmem-48          0    14   11    2       500      18989  97.4     2695558  99.3
kmem-512         0    14    2    1        90        266  66.2      382961  99.9
kmem-56          0    14    2    2       299        837  64.3      447642  99.8
kmem-64          0    14    3    1       211       1004  79.0      333316  99.7
kmem-768         0    14    6    1       185        629  70.6      390810  99.8
kmem-80          2    14   20    1       686      52082  98.7     4286787  98.8
kmem-96          0    14    3    0       336        629  46.6      379003  99.8
ksiginfo         0    14    0    1        30       5202  99.4      143216  96.4
kva-12288        0    14    0    0         6          8  25.0          12  33.3
kva-16384        0    14    0    0         3          3   0.0           3   0.0
kva-20480        0    14    0    0         1          2  50.0           4  50.0
kva-32768        0    14    0    0         4          6  33.3          11  45.5
kva-4096         0    14    0    1      7679       7703   0.3     2677769  99.7
kva-65536        0    14    0    0         2          2   0.0           2   0.0
kva-8192         0    14    0    0        10         12  16.7          20  40.0
lockf            0    14    0    0        17         19  10.5         575  96.7
lwppl            0    14    1    1       119        862  86.2      350576  99.8
mbpl             0    14    3    0        70       4109  98.3      322476  98.7
mclpl            0    14    3    0        66       2331  97.2       46453  95.0
mutex           40    14  194   13     27877     340695  91.8     8692462  96.1
ncache           2    14   66  491     26215     275169  90.5     3851705  92.9
piperd           0    14    0    1        48        362  86.7      151069  99.8
pipewr           0    14    1    0        50        671  92.5      151376  99.6
plimitpl         0    14    0    1        39        109  64.2       63891  99.8
pmappl           0    14    1    1        78       1025  92.4      350725  99.7
pnbufpl          0    14    0    1        39        159  75.5    27339782 100.0
procpl           0    14    1    1        78        821  90.5      350521  99.8
pstatspl         0    14    1    1        78        821  90.5      350521  99.8
ractx            0    14  181   70      3912       4965  21.2       26744  81.4
rndctx           0    14    0    0        10         12  16.7        7413  99.8
rndsample        0    14    0    0        14         16  12.5       17221  99.9
rndtemp          0    14    0    0         3          5  40.0        7428  99.9
rwlock           0    14    0    0         6          6   0.0           6   0.0
sigacts          0    14    2    0        79       1043  92.4      350742  99.7
socket           0    14    0    1       141        183  23.0       16687  98.9
tstilepl         0    14    1    1       119        862  86.2      350576  99.8
uarea            0    14    1    1       119        862  86.2      350584  99.8
ufsdir           0    14    0    0         8         10  20.0       73120 100.0
vcachepl        23    14  160   28     26217     233977  88.8     3253713  92.8
vmmpepl        144    14   74   13      3089     769221  99.6    24923961  96.9
vmsppl           0    14    1    1        78       1025  92.4      350725  99.7



Copyright (c) 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005,
[     1.000000]     2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017,
[     1.000000]     2018, 2019, 2020 The NetBSD Foundation, Inc.  All rights reserved.
[     1.000000] Copyright (c) 1982, 1986, 1989, 1991, 1993
[     1.000000]     The Regents of the University of California.  All rights reserved.

[     1.000000] NetBSD 9.0_STABLE (GENERIC.MP) #1: Thu Apr 23 18:57:02 CEST 2020
[     1.000000] 	tobiasu%ss20.tmux.org@localhost:/home/tobiasu/netbsd/src/sys/arch/sparc/compile/GENERIC.MP
[     1.000000] total memory = 511 MB
[     1.000000] avail memory = 495 MB
[     1.000000] timecounter: Timecounters tick every 10.000 msec
[     1.000000] Kernelized RAIDframe activated
[     1.000000] bootpath: /iommu@f,e0000000/sbus@f,e0001000/espdma@f,400000/esp@f,800000/sd@3,0
[     1.000000] mainbus0 (root): SUNW,SPARCstation-20: hostid 72f1d9cc
[     1.000000] cpu0 at mainbus0: mid 8: Ross,RT626 @ 150 MHz, on-chip FPU
[     1.000000] cpu0: 512K byte write-back, 32 bytes/line, sw flush: cache enabled
[     1.000000] cpu1 at mainbus0: mid 10: Ross,RT626 @ 150 MHz, on-chip FPU
[     1.000000] cpu1: 512K byte write-back, 32 bytes/line, sw flush: cache enabled
[     1.000000] sx0 at mainbus0 ioaddr 0x80000000
[     1.000000] sx0: architecture rev. 3 chip rev. 3
[     1.000000] obio0 at mainbus0
[     1.000000] clock0 at obio0 slot 0 offset 0x200000: mk48t08
[     1.000000] timer0 at obio0 slot 0 offset 0x300000: delay constant 73, frequency = 2000000 Hz
[     1.000000] timecounter: Timecounter "timer-counter" frequency 2000000 Hz quality 100
[     1.000006] zs0 at obio0 slot 0 offset 0x100000 level 12 softpri 6
[     1.000006] zstty0 at zs0 channel 0
[     1.000006] zstty1 at zs0 channel 1
[     1.000006] zs1 at obio0 slot 0 offset 0x0 level 12 softpri 6
[     1.000006] zstty4 at zs1 channel 0
[     1.000006] kbd0 at zstty4 (console input)
[     1.000006] zstty5 at zs1 channel 1
[     1.000006] ms0 at zstty5
[     1.000006] wsmouse0 at ms0 mux 0
[     1.000006] fdc0 at obio0 slot 0 offset 0x700000 level 11 softpri 4: chip 82077
[     1.000006] fd0 at fdc0 drive 0: 1.44MB 80 cyl, 2 head, 18 sec
[     1.000006] auxreg0 at obio0 slot 0 offset 0x800000
[     1.000006] power0 at obio0 slot 0 offset 0xa01000 level 2
[     1.000006] iommu0 at mainbus0 ioaddr 0xe0000000: version 0x3/0x1, page-size 4096, range 64MB
[     1.000006] sbus0 at iommu0: clock = 25 MHz
[     1.000006] dma0 at sbus0 slot 15 offset 0x400000: DMA rev 2
[     1.000006] esp0 at dma0 slot 15 offset 0x800000 level 4: ESP200, 40MHz, SCSI ID 7
[     1.000006] scsibus0 at esp0: 8 targets, 8 luns per target
[     1.000006] ledma0 at sbus0 slot 15 offset 0x400010: DMA rev 2
[     1.000006] le0 at ledma0 slot 15 offset 0xc00000 level 6: address 08:00:20:f1:d9:cc
[     1.000006] le0: 8 receive buffers, 2 transmit buffers
[     1.000006] bpp0 at sbus0 slot 15 offset 0x4800000 level 2 (ipl 3): DMA rev 2
[     1.000006] dbri0 at sbus0 slot 14 offset 0x10000 level 9: rev e
[     1.000006] cgsix0 at sbus0 slot 0 offset 0x0 level 9: SUNW,501-2325, 1152 x 900, rev 11 (console)
[     1.000006] cgsix0: attached to /dev/fb0
[     1.000006] cgsix0: framebuffer size: 1 MB
[     1.000006] wsdisplay0 at cgsix0 kbdmux 1: console (std, vt100 emulation)
[     1.000006] wsmux1: connecting to wsdisplay0
[     1.000006] hme0 at sbus0 slot 2 offset 0x8c00000 level 4 (ipl 7): Sun Happy Meal Ethernet (SUNW,qfe)
[     1.000006] hme0: Ethernet address 08:00:20:f1:d9:cc
[     1.000006] qsphy0 at hme0 phy 1: QS6612 10/100 media interface, rev. 1
[     1.000006] qsphy0: 10baseT, 10baseT-FDX, 100baseTX, 100baseTX-FDX, auto
[     1.000006] hme1 at sbus0 slot 2 offset 0x8c10000 level 4 (ipl 7): Sun Happy Meal Ethernet (SUNW,qfe)
[     1.000006] hme1: Ethernet address 08:00:20:f1:d9:cc
[     1.000006] qsphy1 at hme1 phy 1: QS6612 10/100 media interface, rev. 1
[     1.000006] qsphy1: 10baseT, 10baseT-FDX, 100baseTX, 100baseTX-FDX, auto
[     1.000006] hme2 at sbus0 slot 2 offset 0x8c20000 level 4 (ipl 7): Sun Happy Meal Ethernet (SUNW,qfe)
[     1.000006] hme2: Ethernet address 08:00:20:f1:d9:cc
[     1.000006] qsphy2 at hme2 phy 1: QS6612 10/100 media interface, rev. 1
[     1.000006] qsphy2: 10baseT, 10baseT-FDX, 100baseTX, 100baseTX-FDX, auto
[     1.000006] hme3 at sbus0 slot 2 offset 0x8c30000 level 4 (ipl 7): Sun Happy Meal Ethernet (SUNW,qfe)
[     1.000006] hme3: Ethernet address 08:00:20:f1:d9:cc
[     1.000006] qsphy3 at hme3 phy 1: QS6612 10/100 media interface, rev. 1
[     1.000006] qsphy3: 10baseT, 10baseT-FDX, 100baseTX, 100baseTX-FDX, auto
[     1.000006] eccmemctl0 at mainbus0 ioaddr 0x0: version 0x0/0x2
[     1.000006] timecounter: Timecounter "clockinterrupt" frequency 100 Hz quality 0
[     1.000006] cpu0: booting secondary processors: cpu1
[     1.454969] wskbd0 at kbd0: console keyboard, using wsdisplay0
[     1.473319] scsibus0: waiting 2 seconds for devices to settle...
[     4.216255] sd0 at scsibus0 target 3 lun 0: <SEAGATE, ST373207LC, D701> disk fixed
[     4.246244] sd0: 70007 MB, 90774 cyl, 2 head, 789 sec, 512 bytes/sect x 143374650 sectors
[     4.276245] sd0: sync (100.00ns offset 15), 8-bit (10.000MB/s) transfers, tagged queueing
[     4.766282] cd0 at scsibus0 target 6 lun 0: <TOSHIBA, XM-4101TASUNSLCD, 1084> cdrom removable
[     4.796271] cd0: async, 8-bit transfers
[     4.846280] dbri0: speakerbox detected
[     4.865853] dbri0: cs4215 rev E found at offset 8
[     4.865853] audio0 at dbri0: playback, capture, full duplex
[     4.876281] audio0: slinear_be:16 2ch 48000Hz, blk 40ms for playback
[     4.906278] audio0: slinear_be:16 2ch 48000Hz, blk 40ms for recording
[     4.936278] root on sd0a dumps on sd0b
[     4.986289] root file system type: ffs
[     5.016282] kern.module.path=/stand/sparc/9.0/modules
[ 39636.609933] autoconfiguration error: xcall(cpu0,0xf0008ea4) from 0xf000ba00: couldn't ping cpus: cpu1
[ 39636.629097] autoconfiguration error: xcall(cpu0,0xf0008ea4) from 0xf000ba00: couldn't ping cpus: cpu1
[ 39636.633279] autoconfiguration error: xcall(cpu0,0xf0008ea4) from 0xf000ba00: couldn't ping cpus: cpu1
[ 39636.647531] autoconfiguration error: xcall(cpu0,0xf0008ea4) from 0xf000ba00: couldn't ping cpus: cpu1
[ 43580.124760] lwp_ctl_alloc: lcp uvm_map returned 12 lp_uao=0xf1831450 lp_cur=0 lp_max=10000 lp_uva=ed180000
[ 43580.124760] lwp_ctl_alloc: lcp_uaddr=e lcp_kaddr=f0000000 lcp_nfree=12 lcp_rotor=15 lcp_bitmap=b
[ 43971.585957] lwp_ctl_alloc: lcp uvm_map returned 12 lp_uao=0xf1e024b8 lp_cur=0 lp_max=10000 lp_uva=ed480000
[ 43971.585957] lwp_ctl_alloc: lcp_uaddr=d lcp_kaddr=f0000000 lcp_nfree=12 lcp_rotor=13 lcp_bitmap=b

>How-To-Repeat:
Build stuff (-j2) for some time
>Fix:
unknown



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