Hey, Thanks for the patch. I got log output but I had two clients hanging in the same way with the attached patch. $ patch -p0 < stat.patch patching file b/stat.c patching file b/stat.h Hunk #1 succeeded at 213 (offset -5 lines). I was using --output <filename> Worth mentioning here is that on the NFS server the output file is written to is issuing a stat(1) on the above output file once per second. Could it cause any prolems? Thanks! Michael On Thu, Jul 10, 2014 at 1:44 AM, Jens Axboe <axboe@xxxxxxxxx> wrote: > On 2014-07-10 00:56, Michael Mattsson wrote: >> >> Hey, >> I've got 8 identical CentOS 6.5 clients that randomly keeps hanging >> fio when using --status-interval. I've tried fio 2.1.4 and fio 2.1.10 >> they both behave the same. I've also tried piping the output to tee >> instead of redirecting to a file. I also tried --output and specified >> output file, still same problem. My fio command runs through its tests >> flawlessly without --status-interval and exits cleanly every time. >> There could be anywhere from 0 to 5 clients that gets affected. >> Running strace on the process that seem hung yields the following >> output: >> >> $ strace -p 31055 >> Process 31055 attached - interrupt to quit >> futex(0x7f346ede802c, FUTEX_WAIT, 1, NULL > > > Strange, it must be stuck on the stat mutex, but I don't immediately see why > that would happen. Does the attached patch make any difference for you, both > in getting rid of the hang but still producing output at the desired > intervals? > > -- > Jens Axboe > -- To unsubscribe from this list: send the line "unsubscribe fio" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
