Archive for February, 2005

::whatthread and MDB modules

A long time ago I described a debugging problem where it was necessary to determine which threads owned a reader lock. In particular, I used the heuristic that if the address of the rwlock is in a particular thread’s stack, then it most likely held by the thread (and can be verified by examining the [...]

Posted on February 2, 2005 at 2:33 pm by eschrock · Permalink · Comments Closed
In: OpenSolaris

DTrace and customer service

Today, I thought I’d share a real-world experience that might portray DTrace in a slightly different light than you’re used to. The other week, I was helping a customer with the following question: Why is automountd constantly taking up 1.2% of CPU time? The first thought that came to mind was a broken automountd. But [...]

Posted on February 1, 2005 at 10:57 am by eschrock · Permalink · 6 Comments
In: OpenSolaris