Re: FIO enter dead-loop to look for new file

On Mon, Feb 25 2008, Zhang, Yanmin wrote:
> On Wed, 2008-02-13 at 16:58 +0800, Zhang, Yanmin wrote:
> > On Tue, 2008-02-05 at 10:06 +0100, Jens Axboe wrote:
> > > On Tue, Feb 05 2008, Jens Axboe wrote:
> > > > On Tue, Feb 05 2008, Zhang, Yanmin wrote:
> > > > > On Mon, 2008-02-04 at 11:01 +0100, Jens Axboe wrote:
> > > > > > On Mon, Feb 04 2008, Zhang, Yanmin wrote:
> > > > > > > On Mon, 2008-02-04 at 17:03 +0800, Zhang, Yanmin wrote:
> > > > > > > > When I used below job file to test, it hangs. I used gdb to check it and found
> > > > > > > > thread_main keeps calling clear_io_state over and over again. Every sub-process
> > > > > > > > has one file, but it doesn't finish its task after it finishs the file, so it
> > > > > > > > calls do_io again and again although it has no more file.
> > > > > > > >
> > > > > > > > If change bsrange=4k-4k, it does work. if it's 2k-4k, it also doesn't work.
> > > > > > > If I use bs=2k to replace bsrange, it looks like it does work although
> > > > > > > my testing is still running.
> > > > > >
> > > > > > Can you try the current version, I fixed some bugs in this area on
> > > > > > friday? Either use git to download it, or just use
> > > > > >
> > > > > > http://brick.kernel.dk/snaps/fio-git-latest.tar.gz
> > > > > I tried it. with bsrange=2k-4k, it doesn't hang. However, there is
> > > > > anthoer issue. I used 9 disks and every disk has a 1GB file. Every 2
> > > > > threads do I/O on one file, so there are 18 threads and 9 groups. With
> > > > > the new fio-git, the status shows there are just 4 threads working on
> > > > > I/O. The result also showed 5 groups has no result.
> This issue appears again in the latest tarball of Feb. 21st.

That's odd, and you state that the fix is missing. Perhaps my git tar
ball script is broken. What does git log say in the directory of the
downloaded tar ball?

-- 
Jens Axboe