fio-2.0.14 crashes with "Assertion failed: (data->fail_ok), function axmap_set_fn, file lib/axmap.c, line 233."

fio-2.0.14 crashes with "Assertion failed: (data->fail_ok), function axmap_set_fn, file lib/axmap.c, line 233."

[Lev Serebryakov]

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Hello, Fio.

  FreeBSD 9.1-STABLE, dual-core machine with 6GiB of physical RAM, job
 file with 8 jobs with filesize=1G-2G (attached).

   fio --latency-log --bandwidth-log torrent-like.fio

 crashes after file layout:

file-1: (g=0): rw=randrw, bs=64-64/128K-128K/128K-128K, ioengine=psync, iodepth=1
file-2: (g=0): rw=randrw, bs=64-64/128K-128K/128K-128K, ioengine=psync, iodepth=1
file-3: (g=0): rw=randrw, bs=64-64/128K-128K/128K-128K, ioengine=psync, iodepth=1
file-4: (g=0): rw=randrw, bs=64-64/128K-128K/128K-128K, ioengine=psync, iodepth=1
file-5: (g=0): rw=randrw, bs=64-64/128K-128K/128K-128K, ioengine=psync, iodepth=1
file-6: (g=0): rw=randrw, bs=64-64/128K-128K/128K-128K, ioengine=psync, iodepth=1
file-7: (g=0): rw=randrw, bs=64-64/128K-128K/128K-128K, ioengine=psync, iodepth=1
file-8: (g=0): rw=randrw, bs=64-64/128K-128K/128K-128K, ioengine=psync, iodepth=1
fio-2.0.14
Starting 8 threads
file-1: Laying out IO file(s) (1 file(s) / 1910MB)
file-2: Laying out IO file(s) (1 file(s) / 1910MB)
file-3: Laying out IO file(s) (1 file(s) / 1910MB)
file-4: Laying out IO file(s) (1 file(s) / 1910MB)
file-5: Laying out IO file(s) (1 file(s) / 1910MB)
file-6: Laying out IO file(s) (1 file(s) / 1910MB)
file-7: Laying out IO file(s) (1 file(s) / 1910MB)
file-8: Laying out IO file(s) (1 file(s) / 1910MB)
Assertion failed: (data->fail_ok), function axmap_set_fn, file lib/axmap.c, line 233.
Аварийное завершение(core dumped)


-- 
// Black Lion AKA Lev Serebryakov <lev@serebryakov.spb.ru>

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[global]
description=Random R/W with 25:75 R:W, 64K blocks and many threads on big files
readwrite=randrw:1
rw_sequencer=identical
fallocate=none
fadvise_hint=0
blocksize=64K-128K
blocksize_unaligned=0
nrfiles=1
ioengine=psync
fsync=0
overwrite=1
fsync_on_close=1
norandommap=0
thread
size=4G

[file-1]
name=file-1
filesize=1G-4G

[file-2]
name=file-2
filesize=1G-4G

[file-3]
name=file-3
filesize=1G-4G

[file-4]
name=file-4
filesize=1G-4G

[file-5]
name=file-5
filesize=1G-4G

[file-6]
name=file-6
filesize=1G-4G

[file-7]
name=file-7
filesize=1G-4G

[file-8]
name=file-8
filesize=1G-4G

Re: fio-2.0.14 crashes with "Assertion failed: (data->fail_ok), function axmap_set_fn, file lib/axmap.c, line 233."

[Jens Axboe]

On Wed, Mar 06 2013, Lev Serebryakov wrote:
> Hello, Fio.
> 
>   FreeBSD 9.1-STABLE, dual-core machine with 6GiB of physical RAM, job
>  file with 8 jobs with filesize=1G-2G (attached).
> 
>    fio --latency-log --bandwidth-log torrent-like.fio
> 
>  crashes after file layout:
> 
> file-1: (g=0): rw=randrw, bs=64-64/128K-128K/128K-128K, ioengine=psync, iodepth=1
> file-2: (g=0): rw=randrw, bs=64-64/128K-128K/128K-128K, ioengine=psync, iodepth=1
> file-3: (g=0): rw=randrw, bs=64-64/128K-128K/128K-128K, ioengine=psync, iodepth=1
> file-4: (g=0): rw=randrw, bs=64-64/128K-128K/128K-128K, ioengine=psync, iodepth=1
> file-5: (g=0): rw=randrw, bs=64-64/128K-128K/128K-128K, ioengine=psync, iodepth=1
> file-6: (g=0): rw=randrw, bs=64-64/128K-128K/128K-128K, ioengine=psync, iodepth=1
> file-7: (g=0): rw=randrw, bs=64-64/128K-128K/128K-128K, ioengine=psync, iodepth=1
> file-8: (g=0): rw=randrw, bs=64-64/128K-128K/128K-128K, ioengine=psync, iodepth=1
> fio-2.0.14
> Starting 8 threads
> file-1: Laying out IO file(s) (1 file(s) / 1910MB)
> file-2: Laying out IO file(s) (1 file(s) / 1910MB)
> file-3: Laying out IO file(s) (1 file(s) / 1910MB)
> file-4: Laying out IO file(s) (1 file(s) / 1910MB)
> file-5: Laying out IO file(s) (1 file(s) / 1910MB)
> file-6: Laying out IO file(s) (1 file(s) / 1910MB)
> file-7: Laying out IO file(s) (1 file(s) / 1910MB)
> file-8: Laying out IO file(s) (1 file(s) / 1910MB)
> Assertion failed: (data->fail_ok), function axmap_set_fn, file lib/axmap.c, line 233.

I've noticed that you used bs= and gave a range, that wont work. Fio
should fail to parse that, but alas, it does not and you get this:

        file-8: (g=0): rw=randrw, bs=64-64/128K-128K/128K-128K, ioengine=psync, iodepth=1

which is 64b reads, 128K writes, 128K trims. I will look into why this
doesn't fail to parse, but in the mean time, you want to use
bsrange=64k-128k which will do what you intend it to.

-- 
Jens Axboe