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Subject: Re: fio signal 11
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From: Jens Axboe <axboe@kernel.dk>
Message-ID: <575EF50D.5010005@kernel.dk>
Date: Mon, 13 Jun 2016 12:01:49 -0600
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To: Jeff Furlong <jeff.furlong@hgst.com>, Sitsofe Wheeler <sitsofe@gmail.com>
Cc: "fio@vger.kernel.org" <fio@vger.kernel.org>, Jan Kara <jack@suse.cz>
List-ID: <fio@vger.kernel.org>

On 06/13/2016 11:58 AM, Jeff Furlong wrote:
> I'd like to use the latest git version so that I can pickup patch 356014ff351c6eb69339652650af5f6af72e5c22 to fix the ramp time issue.
>
> I tried the latest git version fio-2.11-21-g2b762, but got a new issue:
>
> [New LWP 120298]
> [New LWP 120281]
> [Thread debugging using libthread_db enabled]
> Using host libthread_db library "/lib64/libthread_db.so.1".
> Core was generated by `fio --name=test_job --ioengine=libaio --direct=1 --rw=write --iodepth=32'.
> Program terminated with signal 11, Segmentation fault.
> #0  __add_log_sample (iolog=iolog@entry=0x7f8376222c30, val=2230, ddir=ddir@entry=DDIR_WRITE, bs=bs@entry=0, t=t@entry=1056000,
>      offset=offset@entry=0) at stat.c:2015
> 2015			s->val = val;
> (gdb) bt
> #0  __add_log_sample (iolog=iolog@entry=0x7f8376222c30, val=2230, ddir=ddir@entry=DDIR_WRITE, bs=bs@entry=0, t=t@entry=1056000,
>      offset=offset@entry=0) at stat.c:2015
> #1  0x0000000000422411 in __add_log_sample (offset=0, t=1056000, bs=0, ddir=DDIR_WRITE, val=<optimized out>, iolog=0x7f8376222c30)
>      at stat.c:2004
> #2  __add_stat_to_log (log_max=<optimized out>, elapsed=1056000, ddir=DDIR_WRITE, iolog=0x7f8376222c30) at stat.c:2091
> #3  _add_stat_to_log (log_max=<optimized out>, elapsed=<optimized out>, iolog=0x7f8376222c30) at stat.c:2103
> #4  add_log_sample (td=td@entry=0x7f8361f3d000, iolog=0x7f8376222c30, val=2230, ddir=ddir@entry=DDIR_WRITE, bs=1048576,
>      offset=offset@entry=0) at stat.c:2139
> #5  0x000000000042f45f in add_log_sample (offset=0, bs=<optimized out>, ddir=DDIR_WRITE, val=<optimized out>, iolog=<optimized out>,
>      td=0x7f8361f3d000) at stat.c:2357
> #6  add_iops_samples (t=0x7f835a4bae50, td=0x7f8361f3d000) at stat.c:2362
> #7  calc_log_samples () at stat.c:2402
> #8  0x0000000000467508 in helper_thread_main (data=0x7f8376222d90) at helper_thread.c:125
> #9  0x00007f8377e7cdf5 in start_thread () from /lib64/libpthread.so.0
> #10 0x00007f83779a61ad in clone () from /lib64/libc.so.6
>
> Maybe I should try the ramp time patch only on 2.11 release?

What did you run to cause this crash? Looks like only some of the 
arguments got shown.

-- 
Jens Axboe