Sun System Handbook - ISO 3.4 June 2011 Internal/Partner Edition | |||
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Solution Type Problem Resolution Sure Solution 1002446.1 : TTYMON on v240 consumes excessive cpu time.
PreviouslyPublishedAs 203419 Symptoms Installed Bi-Directional modem on ttyb on Sun Fire[TM] V240. # pmadm -l PMTAG PMTYPE SVCTAG FLGS ID <PMSPECIFIC> zsmon ttymon ttyb u root /dev/term/b b - /usr/bin/login - 57600 ldterm,ttcompat login: - - n #Modem - Bidirectional Though, modem is not in use its ttymon process is consuming close to 40% cpu time. # ps -ef | grep ttymon PID USERNAME THR PRI NICE SIZE RES STATE TIME CPU COMMAND 440 root 1 20 0 1840K 1128K run 3328.4 97.53% ttymon Resolution This is known problem with V240's running Solaris[TM]10 or 9 with a Bi-Directional modem configured on ttyb. May also occur with Solaris[TM] 8 07/03. The problem is caused by a regression introduced with the fix for bug 4028137 - serial line hangs and gets "link down". The problem will occur if the following patches are installed. Solaris[TM]10 w/ 118557-04, 119574-02 and 118868-01 Solution- 1.) Install 118557-05 or above. 2.) Upgrade to s10u3_02. Solaris[TM] 9 w/ 113077-17 and 123056-01 Solution- Install 113077-20 or above Solaris[TM] 8 w/ 109793-28 or above. Solution- Install 109793-31 or above Alternate solution to the above. Possible hung login process. Kill ttymon process. It will respawn a new ttymon process. Relief/Workaround Solaris[TM] 9: Backout 113077-17 and 123056-01 then install 113077-16 or below only. Solaris[TM] 8: Backout 109793-28 to 109793-27 or below. Additional Information Problem may also appear with Sun Fire[TM] V210. Setting ttyb-ignore-cd to false has no effect. Product Solaris 9 Operating System SPARC Platform Edition Solaris 10 Operating System Solaris 8 HW 07/03 Sun Fire V240 Server Sun Fire V210 Server v240, sun fire, modem, ttymon, cpu, consume Previously Published As 86736 Change History Date: 2007-07-06 User Name: 95826 Action: Approved Comment: - verified metadata - review date ok : 2008-07-05 - checked for TM - none added - checked audience : contract - no further edit required Publishing Version: 8 Date: 2007-07-05 User Name: 95826 Action: Accept Comment: Version: 0 Attachments This solution has no attachment |
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