On 2010-09-23 14:38, Nikolaus Jeremic wrote: > Hello, > > I am using fio for benchmarking of SSDs and noticed that fio causes a > segfault after writing about 260000 MB with block size of 4069 bytes > at random in one job. Writing the same or just bigger amount of data > sequentially in 1 MB blocks works well. The situation is reproducible > with several fio versions, i.e. 1.34, 1.41, 1.43, 1.43.2 as of > 09/16/2010. That's not good. To help me with this, please do: - Edit the Makefile in fio, remove the -O2 in there. - make clean && make - Run ulimit -c10000000000 or something large like that - Now reproduce the problem. Fio will segfault again, and produce a core file. - compress the fio executable and core file and send them to me. -- 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