svn commit: r284153 - head/sys/kern

Ruslan Bukin br at freebsd.org
Tue Jun 9 10:23:35 UTC 2015


On Mon, Jun 08, 2015 at 02:04:45PM -0400, John Baldwin wrote:
> On Monday, June 08, 2015 03:46:29 PM Ruslan Bukin wrote:
> > For some reason it hangs for me after 'random' lines on arm64
> 
> Are you using dtrace?  It looks like sdt was using the public symbol before
> but in a context where the caller held the lock.  I will revert this for now.
> I think I can perhaps make it 'automatic' by having it acquire a read lock
> (possibly recursing) if it doesn't already hold a write lock.
> 

Yes, I'm using DTrace. And you right: if I remove dtrace_sdt from kernel,
then the same revision works fine for me.

Ruslan



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