Re: NetBSD 10.0 - configure test process hang

To: Robert Elz <kre%munnari.OZ.AU@localhost>
Subject: Re: NetBSD 10.0 - configure test process hang
From: Riccardo Mottola <riccardo.mottola%libero.it@localhost>
Date: Fri, 15 Nov 2024 12:54:43 +0100

Hi,

Robert Elz wrote:
> "select" means it is waiting for something to happen, perhaps to read
> some output.
> 
> Its ancestor chain (parent, grandparent, ...) are pids 29639, 24416, 29612,
> 1736, 7001, 28722, 29395, 16410, 11612, 22302, 2638, 2040, 1949
> 
> all of which except the last two are in "wait" state, waiting for a
> child ("the" child I suspect) to complete.   The last two are so far
> up the food chain that even though they're not actually doing a wait,
> that's probably close enough to what they are doing (via a different
> mechanism perhaps).

wonder how that can help us. I hope it can be fixed.

I am continuing to build packages on my SS20 (some considerations
separately in another mail then). I usually stop and resume and things
go on, so the system is not locked up, howeve some process may require
some "kill -9" along in the build tree instead of just a ctrl-c
(sometimes enough) to cleanup.

e.g. here, building emacs

  INFO     Scraping files for diary-loaddefs.el...100%
  INFO     Scraping files for diary-loaddefs.el...done
  GEN      ../lisp/leim/quail/SW.el

hang. Top shows... "nothing".. No activity:

load averages:  0.00,  0.00,  0.00;               up 4+00:53:15
                                  10:50:21
37 processes: 36 sleeping, 1 on CPU
CPU states:  0.2% user,  0.0% nice,  0.8% system,  0.1% interrupt, 98.9%
idle
Memory: 169M Act, 92M Inact, 24K Wired, 47M Exec, 184M File, 21M Free
Swap: 1033M Total, 56M Used, 977M Free / Pools: 93M Used / Network:

  PID USERNAME PRI NICE   SIZE   RES STATE       TIME   WCPU    CPU COMMAND
    0 root     222    0     0K   14M nd6_ti/1   55:49  0.00%  0.00% [system]
24094 multix    43    0  7784K 1772K CPU/1       8:05  0.00%  0.00% top
13763 root      85    0    13M  952K poll/0      1:39  0.00%  0.00% telnetd
 2855 root      33    0    70M 3024K parked/1    0:51  0.00%  0.00% emacs
27032 root      34    0    80M   24M parked/0    0:38  0.00%  0.00%
bootstrap-emacs
 1023 multix    85    0    17M  964K poll/0      0:33  0.00%  0.00% sshd
22996 root      33    0    69M 3772K parked/0    0:31  0.00%  0.00% emacs
22429 root      85    0  8136K 1032K wait/0      0:22  0.00%  0.00% gmake
 1372 root      85    0    16M  964K kqueue/0    0:18  0.00%  0.00% master
 4441 root      82    0  8724K  836K wait/1      0:18  0.00%  0.00% make
23416 root      85    0  8040K 1040K wait/0      0:16  0.00%  0.00% gmake
10412 root      83    0  8184K  836K wait/0      0:15  0.00%  0.00% make
  698 root      85    0    12M 1188K kqueue/0    0:13  0.00%  0.00% syslogd
 1470 root      85    0  6588K 1004K nanosl/1    0:12  0.00%  0.00% cron
11050 root      85    0  8016K 1936K select/1    0:08  0.00%  0.00% gmake
 4550 root      84    0  8152K  832K wait/0      0:06  0.00%  0.00% make
16965 root      43    0    66M 3756K parked/0    0:06  0.00%  0.00% emacs
 8316 root      30    0    66M 3008K parked/1    0:06  0.00%  0.00% emacs
11173 root      29    0    76M   21M parked/1    0:06  0.00%  0.00%
bootstrap-emacs
 1880 postfix   85    0    16M 1444K kqueue/1    0:05  0.00%  0.00% qmgr
  187 root      85    0    16M  864K poll/1      0:05  0.00%  0.00% sshd
22838 root      83    0  7360K 1036K wait/0      0:04  0.00%  0.00% gmake
11060 root      78    0  7504K 2164K wait/1      0:04  0.00%  0.00% gmake
 7239 multix    85    0    13M 1124K poll/0      0:02  0.00%  0.00% sudo
13865 root      85    0    13M  800K wait/0      0:01  0.00%  0.00% login
19705 postfix   85    0    16M 3952K kqueue/0    0:00  0.00%  0.00% pickup
14492 root      85    0  6852K 1828K select/0    0:00  0.00%  0.00% gmake
11594 root      85    0  6228K 1016K wait/0      0:00  0.00%  0.00% sh
15741 multix    85    0  6908K  884K pause/0     0:00  0.00%  0.00% csh
  183 multix    85    0  7020K  864K pause/0     0:00  0.00%  0.00% csh
    1 root      85    0  6176K  800K wait/1      0:00  0.00%  0.00% init
 1139 root      85    0    16M  716K poll/0      0:00  0.00%  0.00% sshd
 1848 root      85    0  6200K  712K kqueue/0    0:00  0.00%  0.00% inetd
 5456 multix    85    0    13M  640K poll/1      0:00  0.00%  0.00% sudo
26961 root      83    0  6132K 1016K wait/1      0:00  0.00%  0.00% sh
 1469 root      81    0  5872K  768K ttyraw/0    0:00  0.00%  0.00% getty
24892 root      80    0  8780K 2356K select/1    0:00  0.00%  0.00% gmake

the two bootstrap-emacs processes are parked. cpu 0.00%

 UID   PID  PPID   CPU PRI NI   VSZ   RSS WCHAN  STAT TTY       TIME COMMAND
   0  1469     1 17886  81  0  5872   768 ttyraw Is+  ttya   0:00.11
/usr/libexec/getty suncons constty
1000   183  1023     0  85  0  7020   864 pause  Is   pts/0  0:00.50 -csh
   0  7239   183   682  85  0 12976  1124 poll   I+   pts/0  0:02.78
sudo make install
   0  2855 22429 21845  33  0 71348  3024 parked Il   pts/1- 0:51.24
../src/emacs -batch --no-site-lisp --no-site-file --eval (setq
load-prefer-newer t) -f batch-byte-compile cedet/semantic/db-javascript.el
   0  4441 26961 13932  82  0  8724   836 wait   I+   pts/1  0:18.72
/usr/bin/make LOWER_OPSYS=netbsd _PKGSRC_BARRIER=yes
ALLOW_VULNERABLE_PACKAGES= package-install
   0  4550  5456  5127  84  0  8152   832 wait   I+   pts/1  0:06.55
make install
   0  5456  7239     0  85  0 12976   640 poll   Is   pts/1  0:00.03
sudo make install
   0  8316 22429 27067  43  0 67104  3008 parked Il   pts/1- 0:06.41
../src/emacs -batch --no-site-lisp --no-site-file --eval (setq
load-prefer-newer t) -f batch-byte-compile cedet/ede/proj-obj.el
   0 10412 11594  8589  83  0  8184   836 wait   I+   pts/1  0:15.48
/usr/bin/make _MAKE=/usr/bin/make OPSYS=NetBSD OS_VERSION=10.0
OPSYS_VERSION=100000 LOWER_OPSYS=netbsd _PKGSRCDIR=/usr/pkgsrc
PKGTOOLS_VERSION=20210410 UNPRIVILEGED_USER=root UN
   0 11050 11060     0  85  0  8016  1936 select I+   pts/1  0:08.02
/usr/pkg/bin/gmake -C src VCSWITNESS= BIN_DESTDIR=/usr/pkg/bin/
ELN_DESTDIR=/usr/pkg/lib/emacs/28.2/ all
   0 11060 22838 29228  78  0  7504  2164 wait   I+   pts/1  0:04.55
/usr/pkg/bin/gmake all
   0 11173 14492 58590  29  0 78240 21348 parked Il+  pts/1  0:06.95
../src/bootstrap-emacs -batch --no-site-lisp --no-site-file -l
titdic-cnv -f batch-titdic-convert -dir ./../lisp/leim/quail
CXTERM-DIC/Punct.tit
   0 11594  4550  3898  85  0  6228  1016 wait   I+   pts/1  0:00.14
/bin/sh -c set -e;\t\t\t\t\t\t\t\t test -n "" && echo 1>&2 "ERROR:"  &&
exit 1;  exec 3<&0;\t\t\t\t\t\t\t while read type pattern dir;
do\t\t\t\t\t test "$type" != "bootstrap" |
   0 14492 24892   682  85  0  6852  1828 select I+   pts/1  0:00.48
/usr/pkg/bin/gmake -C ../leim all EMACS=../src/bootstrap-emacs
   0 16965 23416 23592  43  0 67104  3756 parked Il   pts/1- 0:06.36
../src/emacs -batch --no-site-lisp --no-site-file --eval (setq
load-prefer-newer t) -f batch-byte-compile calc/calc-graph.el
   0 22429     1     0  85  0  8136  1032 wait   I    pts/1- 0:22.21
/usr/pkg/bin/gmake compile-targets NATIVE_DISABLED=
TARGETS=./emacs-lisp/eieio.elc ./emacs-lisp/eieio-base.elc
./cedet/semantic/db.elc ./abbrev.elc ./align.elc ./allout-widgets.
   0 22838  4441  9421  83  0  7360  1036 wait   I+   pts/1  0:04.63
/usr/pkg/bin/gmake -j2 -f Makefile bootstrap
   0 22996 23416 21365  33  0 70956  3772 parked Il   pts/1- 0:31.76
../src/emacs -batch --no-site-lisp --no-site-file --eval (setq
load-prefer-newer t) -f batch-byte-compile calc/calc-incom.el
   0 23416     1     0  85  0  8040  1040 wait   I    pts/1- 0:16.04
/usr/pkg/bin/gmake compile-targets NATIVE_DISABLED=
TARGETS=./emacs-lisp/eieio.elc ./emacs-lisp/eieio-base.elc
./cedet/semantic/db.elc ./abbrev.elc ./align.elc ./allout-widgets.
   0 24892 11050 21390  80  0  8780  2356 select I+   pts/1  0:00.84
/usr/pkg/bin/gmake -C ../lisp autoloads EMACS=../src/bootstrap-emacs
   0 26961 10412  9131  83  0  6132  1016 wait   I+   pts/1  0:00.09
/bin/sh -c set -e;\t\t\t\t\t if test -n "" &&  /usr/sbin/pkg_info -K
/var/db/pkg -qe emacs28-28.2nb15; then  echo ===\\> "Skipping
installation of already handled package";  els
   0 27032 14492 40649  34  0 82268 24116 parked Il+  pts/1  0:38.62
../src/bootstrap-emacs -batch --no-site-lisp --no-site-file -l
titdic-cnv -f batch-titdic-convert -dir ./../lisp/leim/quail
CXTERM-DIC/SW.tit
   0 13865 13763     0  85  0 13596   800 wait   Is   pts/2  0:01.41 login
1000 15741 13865     0  85  0  6908  1304 pause  S    pts/2  0:00.61 -csh
1000 21282 15741  1024  42  0  6208  1396 -      O+   pts/2  0:00.08 ps -al

what kind of hang/lock is going on?

I'm installing pstree now. Should help next time.

-R

References:
- Re: NetBSD 10.0 - configure test process hang
  - From: Riccardo Mottola
- NetBSD 10.0 - configure test process hang
  - From: Riccardo Mottola
- Re: NetBSD 10.0 - configure test process hang
  - From: Robert Elz
- Re: NetBSD 10.0 - configure test process hang
  - From: Robert Elz

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