Re: ule+smp: small optimization for turnstile priority lending

2012-09-20 Thread David Xu
On 2012/09/18 22:05, Andriy Gapon wrote: Here is a snippet that demonstrates the issue on a supposedly fully loaded 2-processor system: 136794 0 3670427870244462 KTRGRAPH group:thread, id:Xorg tid 102818, state:running, attributes: prio:122 136793 0 3670427870241000 KTRGRAPH group:thread,

Re: fdgrowtable() cleanup

2012-09-20 Thread Konstantin Belousov
On Wed, Sep 19, 2012 at 09:04:30PM +0200, Dag-Erling Sm??rgrav wrote: Konstantin Belousov kostik...@gmail.com writes: Dag-Erling Sm??rgrav d...@des.no writes: I assume you mean assignments, not calculations. I trust the compiler to move them to where they are needed - a trivial

Re: ule+smp: small optimization for turnstile priority lending

2012-09-20 Thread Andriy Gapon
on 19/09/2012 10:33 Attilio Rao said the following: It is hard for me to tell if this is subject to same issues because I do not entirely understand where the locking was happening in your patch. Can you try testing this with your already KTR instrumented test and possibly report? The patch

Re: ule+smp: small optimization for turnstile priority lending

2012-09-20 Thread Andriy Gapon
on 20/09/2012 14:04 Andriy Gapon said the following: on 19/09/2012 10:33 Attilio Rao said the following: It is hard for me to tell if this is subject to same issues because I do not entirely understand where the locking was happening in your patch. Can you try testing this with your already

Re: ule+smp: small optimization for turnstile priority lending

2012-09-20 Thread Andriy Gapon
on 20/09/2012 14:04 Andriy Gapon said the following: on 19/09/2012 10:33 Attilio Rao said the following: It is hard for me to tell if this is subject to same issues because I do not entirely understand where the locking was happening in your patch. Can you try testing this with your already

Re: ule+smp: small optimization for turnstile priority lending

2012-09-20 Thread Attilio Rao
On 9/20/12, Andriy Gapon a...@freebsd.org wrote: on 19/09/2012 10:33 Attilio Rao said the following: It is hard for me to tell if this is subject to same issues because I do not entirely understand where the locking was happening in your patch. Can you try testing this with your already KTR

Re: FreeBSD 8.0 suddenly freezing

2012-09-20 Thread Dieter BSD
In the last 72 hours, we've had two different systems freeze; they don't apparently recognize any interrupts, they won't respond to ping, and they require a powercycle to reboot. We can't easily generate an NMI on these boxes. Just on the off chance, does this sound like a familiar -- and

Re: FreeBSD 8.0 suddenly freezing

2012-09-20 Thread Erich Dollansky
Hi, On Mon, 17 Sep 2012 15:21:59 -0600 Charles R Martin crmar...@corp.sgi.com wrote: We have a web host installation using FreeBSD 8.0, Tomcat, and Java. We ship many copies of this, and haven't changed the OS load in several months. In the last 72 hours, we've had two different systems