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Date:      Thu, 2 Nov 2000 13:24:14 +0000
From:      Steve Dobson <sdobson@allstor-sw.com>
To:        freebsd-questions@freebsd.org
Subject:   Serial device busy
Message-ID:  <20001102132414.A10001@penfold.software.plasmon>

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Hi Experts

I have a FreeBSD 4.1 installation to which I am trying to port one an application
we had working on 3.0.

When it tries to open /dev/cuaa0 is errors with Device busy.
But there is very little running
# ps auxw
USER     PID %CPU %MEM   VSZ  RSS  TT  STAT STARTED      TIME COMMAND
root    2664  0.0  0.2   400  228  p0  R+    2:28PM   0:00.00 ps auxw
root       1  0.0  0.2   456  200  ??  ILs  Wed11AM   0:00.01 /sbin/init --
root       2  0.0  0.0     0    0  ??  DL   Wed11AM   0:05.09  (pagedaemon)
root       3  0.0  0.0     0    0  ??  DL   Wed11AM   0:00.00  (vmdaemon)
root       4  0.0  0.0     0    0  ??  DL   Wed11AM   0:02.67  (bufdaemon)
root       5  0.0  0.0     0    0  ??  DL   Wed11AM   0:13.54  (syncer)
root     110  0.0  0.4   904  556  ??  Ss   Wed11AM   0:00.72 syslogd -s
daemon   113  0.0  0.4   924  544  ??  Is   Wed11AM   0:00.01 /usr/sbin/portmap
root     132  0.0  0.5  1028  648  ??  Is   Wed11AM   0:00.04 inetd -wW
root     134  0.0  0.5   948  596  ??  Ss   Wed11AM   0:00.89 cron
root     137  0.0  0.7  1424  932  ??  Ss   Wed11AM   0:00.88 sendmail: accepting connections on port 25 (sendmail)
root     140  0.0  0.5   952  592  ??  Ss   Wed11AM   0:01.33 rlogind
dobbo    141  0.0  0.6  1048  728  p0  Is   Wed11AM   0:00.64 -bash (bash)
root    2292  0.0  0.7  1384  936  p0  I    11:18AM   0:00.12 -su (csh)
root    2296  0.0  0.6  1044  736  p0  S    11:18AM   0:00.21 bash
root    2298  0.0  0.5   952  632  ??  Is   11:19AM   0:00.24 rlogind
dobbo   2299  0.0  0.6  1048  732  p1  Is+  11:19AM   0:00.41 -bash (bash)
root    2315  0.0  2.3  6816 2940  p0  S    11:21AM   0:00.30 /usr/local/ORBacus/bin/nameserv -i
root       0  0.0  0.0     0    0  ??  DLs  Wed11AM   0:00.09  (swapper)

What has grabbed the serial port? I don't see any gettys that might be using it.

Steve
-- 
Steve Dobson                  E-mail:       sdobson@allstor-sw.com
Unix Architect                Tel (Direct): +44 1763 264441
Allstor Software Ltd.             (R'tion): +44 1763 262963
Whiting Way                   Fax:          +44 1763 264444
Melbourn, Herts, UK SG8 6EN 


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