cvs commit: src/sys/amd64/amd64 genassym.c src/sys/arm/arm genassym.c src/sys/conf options src/sys/i386/i386 genassym.c src/sys/kern subr_prf.c src/sys/powerpc/powerpc genassym.c src/sys/sparc64/sparc64 genassym.c src/sys/sun4v/conf GENERIC ...

[John Birrell]

On Thu, Nov 30, 2006 at 06:08:47AM +0000, Bjoern A. Zeeb wrote:
> On Thu, 30 Nov 2006, John Birrell wrote:
> 
> >jb          2006-11-30 04:17:05 UTC
> >
> > FreeBSD src repository
> >
> > Log:
> > Turn console printf buffering into a kernel option and only on
> > by default for sun4v where it is absolutely required.
> >
> > This change moves the buffer from struct pcpu to the stack to avoid
> > using the critical section which created a LOR in a couple of cases
> 
> is this a well known LOR that one can find on "The LOR Page"?
> http://sources.zabbadoz.net/freebsd/lor.html

No. It has only been seen by one or two people at the most. It is
related to witness and a USB event via kqueue from what I understand.
I haven't seen it myself.

--
John Birrell