Subject: Hang w/NetBSD 2.0 on AlphaPC 164
To: None <port-alpha@netbsd.org>
From: Dave Huang <khym@azeotrope.org>
List: port-alpha
Date: 02/04/2005 12:46:10
My AlphaPC 164 running NetBSD 2.0 just hung in that all user processes
seemed to quit running. However, it still responded to pings, and I
was able to break into ddb from the serial console. Any thoughts as to
what this means, or something I can try if it happens again? I've
already rebooted, but I believe the same thing happened a few months
ago with a 2.0 beta.

~#Stopped in pid 98.1 (cyberpower) at     netbsd:cpu_Debugger+0x4:        ret     z
ero,(ra)
db> t
cpu_Debugger() at netbsd:cpu_Debugger+0x4
comintr() at netbsd:comintr+0x794
alpha_shared_intr_dispatch() at netbsd:alpha_shared_intr_dispatch+0x6c
sio_iointr() at netbsd:sio_iointr+0x4c
interrupt() at netbsd:interrupt+0x290
XentInt() at netbsd:XentInt+0x1c
--- interrupt (from ipl 0) ---
trap() at netbsd:trap+0x40
XentMM() at netbsd:XentMM+0x20
--- memory management fault ---
memcpy() at netbsd:memcpy+0x19c
copyout() at netbsd:copyout+0x4c
sys_select() at netbsd:sys_select+0x3a0
syscall_plain() at netbsd:syscall_plain+0xc4
XentSys() at netbsd:XentSys+0x5c
--- syscall (93) ---
--- user mode ---
db> c
~#Stopped in pid 98.1 (cyberpower) at     netbsd:cpu_Debugger+0x4:        ret     z
ero,(ra)
db> t
cpu_Debugger() at netbsd:cpu_Debugger+0x4
comintr() at netbsd:comintr+0x794
alpha_shared_intr_dispatch() at netbsd:alpha_shared_intr_dispatch+0x6c
sio_iointr() at netbsd:sio_iointr+0x4c
interrupt() at netbsd:interrupt+0x290
XentInt() at netbsd:XentInt+0x1c
--- interrupt (from ipl 0) ---
pmap_changebit() at netbsd:pmap_changebit+0x28
pmap_emulate_reference() at netbsd:pmap_emulate_reference+0x1f4
trap() at netbsd:trap+0x590
XentMM() at netbsd:XentMM+0x20
--- memory management fault ---
memcpy() at netbsd:memcpy+0x19c
copyout() at netbsd:copyout+0x4c
sys_select() at netbsd:sys_select+0x3a0
syscall_plain() at netbsd:syscall_plain+0xc4
XentSys() at netbsd:XentSys+0x5c
--- syscall (93) ---
--- user mode ---
db> ps
 PID           PPID     PGRP        UID S   FLAGS LWPS          COMMAND    WAIT
 22758         1078     1078          0 2  0x4100    1            local   lockf
 2857          1078     1078         12 2  0x4100    1            smtpd
 8182          1078     1078         12 2  0x4100    1             lmtp  select
 5748          1078     1078         12 2  0x4100    1             lmtp  select
 15943        14798    14798       1029 2       0    1             perl
 21419         1078     1078         12 2  0x4100    1            smtpd   lockf
 16109         1078     1078         12 2  0x4100    1           pickup
 14986        14798    14798       1029 2       0    1             perl
 19668         1078     1078          0 2  0x4100    1            local
 23923         1078     1078         12 2  0x4100    1          cleanup   lockf
 20986         1078     1078         12 2  0x4100    1          cleanup
 14847        14882    14847        500 2  0x4002    1              ftp
 29769         1078     1078         12 2  0x4100    1  trivial-rewrite  select
 2878          6984     2878        500 2  0x4102    1     screen-4.0.1
 6984         19521     6984        500 2  0x4002    1             tcsh   pause
 19521        29856    29856        500 2   0x100    1             sshd
 29856          621    29856          0 2   0x100    1             sshd   netio
 7498           639      639          0 2   0x101    1             smbd
 400          12402      400        500 2  0x4402    2        python2.4       *
 14798            1    14798       1029 2       0    1             perl
 12402          812    12402        500 2  0x4002    1             tcsh   pause
 11048        12736    11048        500 2  0x4002    1              ssh  select
 12736          812    12736        500 2  0x4002    1             tcsh   pause
 16612        14882    16612          0 4  0x5002    1             tcsh
 14882          812    14882        500 2  0x4002    1             tcsh   pause
 9372           685     9372          0 4  0x5002    1             tcsh
 4159           717      717      32765 2   0x100    1            httpd  select
 4344           717      717      32765 2   0x100    1            httpd   lockf
 893              1      193          0 2  0x4001    1       couriertls  select
 315            193      193        500 2  0x4000    1            imapd  select
 567            431      567        500 2  0x400b    1             mutt
 431            812      431        500 2  0x4002    1             tcsh   pause
 685            812      685        500 2  0x4002    1             tcsh   ttyin
 812              1      812        500 2   0x101    1     screen-4.0.1  select
 737            472      717          0 2  0x4000    1         cronolog  piperd
 736            471      717          0 2  0x4000    1         cronolog  piperd
 415            537      717          0 2  0x4000    1         cronolog  piperd
 798            717      717      32765 2   0x100    1            httpd   lockf
 285            717      717      32765 2   0x100    1            httpd   lockf
 1244           717      717      32765 2   0x100    1            httpd   lockf
 859            717      717      32765 2   0x100    1            httpd   lockf
 794            717      717      32765 2   0x100    1            httpd   lockf
 537            717      717          0 2  0x4000    1               sh    wait
 472            717      717          0 2  0x4000    1               sh    wait
 471            717      717          0 2  0x4000    1               sh    wait
 982            981      717          0 2  0x4000    1         cronolog  piperd
 981            717      717          0 2  0x4000    1               sh    wait
 852              1        1          0 2  0x4100    1         faxgetty
 723              1      723          0 2  0x4002    1            getty   ttyin
 466              1      466          0 2  0x4002    1            getty   ttyin
 849              1      849          0 2  0x4002    1            getty   ttyin
 720              1      720          0 2  0x4002    1            getty   ttyin
 847              1      847          0 2  0x4002    1            getty
 717              1      717          0 2       0    1            httpd
 200              1       11          0 2  0x4002    1         cronolog  piperd
 197              1      193          0 2  0x4000    1    courierlogger  piperd
 193              1      193          0 2     0x1    1      couriertcpd  select
 544              1      483          0 2  0x4000    1    courierlogger  piperd
 483              1      483          0 2     0x1    1      couriertcpd  select
 734            422      657          0 2       0    1 authdaemond.plai
 690            422      657          0 2       0    1 authdaemond.plai
 696            422      657          0 2       0    1 authdaemond.plai
 531            422      657          0 2       0    1 authdaemond.plai
 654            422      657          0 2       0    1 authdaemond.plai
 422            657      657          0 2  0x4000    1 authdaemond.plai
 657              1      657          0 2     0x1    1    courierlogger  piperd
 748              1      748          0 2       0    1             cron
 1082             1     1082          0 2   0x100    1             faxq  select
 234              1      234          0 2   0x100    1            hfaxd  select
 503            639      639          0 2     0x1    1             smbd   pause
 655              1      655          0 2       0    1            inetd  kqread
 639              1      639          0 2     0x1    1             smbd
 892           1078     1078         12 2  0x4100    1             qmgr
 1078             1     1078          0 2  0x4108    1           master
 624              1      624          0 2       0    1        snmptrapd
 621              1      621          0 2       0    1             sshd  select
 107            104      104       1027 2   0x100    1           upsmon
 104              1      104          0 2       0    1           upsmon  piperd
 101              1      101       1027 2   0x101    1             upsd
>98               1       98       1027 2   0x101    1       cyberpower
 790            730      730          0 2       0    1             nmbd  piperd
 730              1      730          0 2     0x1    1             nmbd
 564              1      564          0 2       0    1             ntpd
 525              1      525       1029 2   0x100    1        freshclam   pause
 528              1      528       1029 2   0x400    2            clamd       *
 382            351      351          0 2       0    1             nfsd    nfsd
 396            351      351          0 2       0    1             nfsd    nfsd
 307            351      351          0 2       0    1             nfsd    nfsd
 369            351      351          0 2       0    1             nfsd    nfsd
 351              1      351          0 2       0    1             nfsd    poll
 367              1      367          0 2       0    1           mountd
 302              1      302          0 2       0    1        mount_mfs  mfsidl
 274              1      274          0 2       0    1    rpc.yppasswdd
 280              1      280          0 2       0    1           ypbind
 279              1      279          0 2       0    1           ypserv
 251              1      251          0 2       0    1          rpcbind
 249              1      249         14 2   0x500    3            named       *
 221              1      221          0 2       0    1          syslogd    poll
 10               0        0          0 2 0x20200    1         aiodoned aiodone
 9                0        0          0 2 0x20200    1          ioflush
 8                0        0          0 2 0x20200    1       pagedaemon pgdaemo
 7                0        0          0 2 0x20200    1        atapibus0  sccomp
 6                0        0          0 2 0x20200    1          atabus3   atath
 5                0        0          0 2 0x20200    1          atabus2   atath
 4                0        0          0 2 0x20200    1          atabus1   atath
 3                0        0          0 2 0x20200    1          atabus0   atath
 2                0        0          0 2 0x20200    1         scsibus0  sccomp
 1                0        1          0 2  0x4000    1             init    wait
 0               -1        0          0 2 0x20200    1          swapper
d

-- 
Name: Dave Huang         |  Mammal, mammal / their names are called /
INet: khym@azeotrope.org |  they raise a paw / the bat, the cat /
FurryMUCK: Dahan         |  dolphin and dog / koala bear and hog -- TMBG
Dahan: Hani G Y+C 29 Y++ L+++ W- C++ T++ A+ E+ S++ V++ F- Q+++ P+ B+ PA+ PL++