Re: Inappropriate ioctl error on Solaris with direct=1

[Jens Axboe <jaxboe@fusionio.com>]

On 2010-11-16 14:14, Sebastian Kayser wrote:
> Hi,
> 
> I would like to provide fio packages for Solaris 10 (via opencsw.org).
> Building 1.44.2 worked fine, but when running fio with direct=1, it
> fails with an ioctl error. Is this to be expected?
> 
> # uname -a
> SunOS ray42 5.10 Generic_141415-04 i86pc i386 i86pc
> 
> # fio --version
> fio 1.44.2
> 
> # fio --name=test --size=1g --rw=write --filename=foo --runtime=60 --direct=1
> test: (g=0): rw=write, bs=4K-4K/4K-4K, ioengine=sync, iodepth=1
> Starting 1 process
> test: Laying out IO file(s) (1 file(s) / 1024MB)
> fio: pid=2476, err=25/file:ioengines.c:404, func=fio_set_odirect, error=Inappropriate ioctl for device
> 
> 
> # truss -ftopen,ioctl fio --name=test --size=1g --rw=write --filename=foo --runtime=60 --direct=1
> ...
> 2472:   ioctl(1, TCGETA, 0x08045814)                    = 0
> test: (g=0): rw=write, bs=4K-4K/4K-4K, ioengine=sync, iodepth=1
> 2472:   open64("/tmp/.fio_mutex.psaa1e", O_RDWR|O_CREAT|O_EXCL, 0600) = 8
> 2472:   open64("/tmp/.fio_mutex.qsaa1e", O_RDWR|O_CREAT|O_EXCL, 0600) = 9
> Starting 1 process
> test: Laying out IO file(s) (1 file(s) / 1024MB)
> 2472:   open64("foo", O_WRONLY|O_CREAT, 0644)           = 10
> 2473:   open64("foo", O_RDWR|O_CREAT, 0600)             = 7
> 2473:   ioctl(7, _ION('f', 76, 0), 0x00000001)          Err#25 ENOTTY
> fio: pid=2473, err=25/file:ioengines.c:404, func=fio_set_odirect, error=Inappropriate ioctl for device

Not sure what the situation is on Solaris, but at least on Linux the
file system has to support direct IO. What file system do you have on
/tmp? Does it work if you place the files somewhere else?

> On a related note: do you guys have access to Solaris systems? If not, we
> do happily provide access to our build farm (Solaris 8/9/10, x86/SPARC,
> equipped with gcc3/4 and Sun Studio 11/12) for upstream mainainers [1]. So
> just let me know, if this sounds beneficial to you.

I used to have a small T2 box on my desk that could boot into Solaris,
that's where I did the initial port and testing. But I don't anymore.
But to be honest, I would rather rely on someone trusted to tell me that
it works on platform XYZ, I just don't have the resources to run a full
battery of tests on all the platforms that fio supports every time I do
a release.

-- 
Jens Axboe