threads/118715: kse problem

[Gary Stanley]

>Number:         118715
>Category:       threads
>Synopsis:       kse problem
>Confidential:   no
>Severity:       serious
>Priority:       low
>Responsible:    freebsd-threads
>State:          open
>Quarter:        
>Keywords:       
>Date-Required:
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Sat Dec 15 09:30:01 UTC 2007
>Closed-Date:
>Last-Modified:
>Originator:     Gary Stanley
>Release:        6.3-PRERELEASE
>Organization:
>Environment:
reeBSD echo.summit-servers.com 6.3-PRERELEASE FreeBSD 6.3-PRERELEASE #2: Tue Nov 27 11:05:56 UTC 2007     root at echo.summit-servers.com:/usr/obj/usr/src/sys/Gary.6  i386
>Description:
After cvsupping a machine to 6.3 from november, my mono process hangs and consumes 99% CPU. A ktrace output is below:

 17821 mono     CALL  kse_release(0xbece01f8)
 17821 mono     RET   kse_release -1 errno 22 Invalid argument
 17821 mono     CALL  kse_release(0xbece01f8)
 17821 mono     RET   kse_release -1 errno 22 Invalid argument
 17821 mono     CALL  kse_release(0xbece01f8)
 17821 mono     RET   kse_release -1 errno 22 Invalid argument
 17821 mono     CALL  kse_release(0xbece01f8)
 17821 mono     RET   kse_release -1 errno 22 Invalid argument
 17821 mono     CALL  kse_release(0xbece01f8)
 17821 mono     RET   kse_release -1 errno 22 Invalid argument
 17821 mono     CALL  kse_release(0xbece01f8)
 17821 mono     RET   kse_release -1 errno 22 Invalid argument
 17821 mono     CALL  kse_release(0xbece01f8)
 17821 mono     RET   kse_release -1 errno 22 Invalid argument
 17821 mono     CALL  kse_release(0xbece01f8)
 17821 mono     RET   kse_release -1 errno 22 Invalid argument


>How-To-Repeat:
Unknown how to trigger. It seems when a mono process exits, it doesn't completely die. 

>Fix:
Unknown.


>Release-Note:
>Audit-Trail:
>Unformatted: