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re: kern/45647: kill from ddb broken

The following reply was made to PR kern/45647; it has been noted by GNATS.

From: matthew green <>
To: (YAMAMOTO Takashi)
Subject: re: kern/45647: kill from ddb broken
Date: Fri, 02 Dec 2011 21:21:58 +1100

 > > You could probably just mutex_tryenter(&proc_lock) and print a message if 
 > > it fails.
 > i don't think tryenter is expected to handle cases like this.
 > and of course, the mutex is not an only problem.
 > IMO we should just close this PR.
 > features like this has always been "works only if you are lucky enough".
 they never work for DIAG kernels now.  it's pretty annoying.  a
 "might work sometimes" fix is much better than simply failing.

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