kern/104624: Sound, mouse and keyboard badly interrupted while I/O (disk, net)

[Alexander Best]

On Thu Dec 23 10, Bruce Cran wrote:
> On Thu, 23 Dec 2010 18:37:20 +0000
> Alexander Best <arundel at freebsd.org> wrote:
> 
> > is this output right at the beginning normal?
> > 
> > fio: this platform does not support process shared mutexes, forcing
> > use of threads. Use the 'thread' option to get rid of this warning.
> > f1: (g=0): rw=write, bs=4K-4K/4K-4K, ioengine=sync, iodepth=1 ...
> > f1: (g=0): rw=write, bs=4K-4K/4K-4K, ioengine=sync, iodepth=1
> > fio: this platform does not support process shared mutexes, forcing
> > use of threads. Use the 'thread' option to get rid of this warning.
> > f2: (g=1): rw=randwrite, bs=4K-4K/4K-4K, ioengine=sync, iodepth=1 ...
> > f2: (g=1): rw=randwrite, bs=4K-4K/4K-4K, ioengine=sync, iodepth=1
> > fio: this platform does not support process shared mutexes, forcing
> > use of threads. Use the 'thread' option to get rid of this warning.
> > f3: (g=2): rw=read, bs=4K-4K/4K-4K, ioengine=sync, iodepth=1 ...
> > f3: (g=2): rw=read, bs=4K-4K/4K-4K, ioengine=sync, iodepth=1
> > fio: this platform does not support process shared mutexes, forcing
> > use of threads. Use the 'thread' option to get rid of this warning.
> > f4: (g=3): rw=randread, bs=4K-4K/4K-4K, ioengine=sync, iodepth=1 ...
> > f4: (g=3): rw=randread, bs=4K-4K/4K-4K, ioengine=sync, iodepth=1
> > Starting 12 threads and 4 processes
> 
> Yes - it just means that FreeBSD doesn't support pshared mutexes. You
> can add "thread" to the job file to stop the warning.

just wanted to report that this doesn't seem to be a SMP issue.

kern.smp.disabled: 1 makes no difference.

cheers.
alex

> 
> -- 
> Bruce Cran

-- 
a13x