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Date: Thu, 23 Oct 2014 23:17:35 -0600
From: Jens Axboe <axboe@kernel.dk>
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Subject: Re: fio hangs with --status-interval
References: <CAE56cDuAUkhEnjMqCSWDcWrdwJrbffMcDG+FeCw6+7GN+jrWUg@mail.gmail.com> <53BE5286.2060203@kernel.dk> <CAE56cDvPKq31NrawN_KZF2+eDHiMY2A7azsx8z_DQfG1=-_cnw@mail.gmail.com> <53BEF29E.3040500@kernel.dk> <CAE56cDv7UmeGN=1rwyhbv7v5LfUkv+ueOoi+6KhnaXZYNx_7Fg@mail.gmail.com> <53BFCF22.8020407@kernel.dk> <CAE56cDtO9v3h2TkiyXQQ8dakmPiE+e-+wSazAc=XESOWA954Tg@mail.gmail.com> <53C0F4EC.9010107@kernel.dk> <CAFTzLMPFs0E4XphF5o155GiFaae0gGqJySswXpKUPPokPWoebw@mail.gmail.com> <53CCCA96.7010703@kernel.dk> <CAFTzLMP5GRx6R2HCykKN4pjkPLwHGafMc2HNh4gUONRRjBgYFg@mail.gmail.com> <53D20AA8.6020700@kernel.dk> <53D20DB8.10100@kernel.dk> <CAFTzLMPE+h_v8ydUP+iuCwJErQLuU=ZNcuKKcuxuZztandp+mQ@mail.gmail.com> <53D61053.9030902@kernel.dk> <CAFTzLMMP1tWNQ0tHj62enk-emhtX9sHv5wq+UCJpXO71RhB_NQ@mail.gmail.com> <53D6A95B.8020307@kernel.dk> <CAE56cDvVtc3kqw-BiEBwM2a34WB-csYMfR6TKjCtS9D=AUnJcw@mail.gmail.com> <54492656.5050805@kernel.dk> <CAE56cDtNaV6OodpXHmSJsYYj0U7CaQdW+ZBxhv-XPiNAwbU+2A@mail.gmail.com>
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To: Michael Mattsson <michael.mattsson@gmail.com>
Cc: Vasily Tarasov <tarasov@vasily.name>, "fio@vger.kernel.org" <fio@vger.kernel.org>
List-ID: <fio@vger.kernel.org>

On 2014-10-23 15:58, Michael Mattsson wrote:
> Hi,
> I got some new traces of the stuck fio process.
>
> This is 2.1.13:
> (gdb) bt
> #0  0x00007f53cbb085bc in pthread_cond_wait@@GLIBC_2.3.2 () from
> /lib64/libpthread.so.0
> #1  0x0000000000430339 in fio_mutex_down (mutex=0x7f53c24ce000) at mutex.c:155
> #2  0x0000000000411950 in stat_exit () at stat.c:1905
> #3  0x000000000044c756 in fio_backend () at backend.c:2094
> #4  0x00007f53cb583d1d in __libc_start_main () from /lib64/libc.so.6
> #5  0x0000000000409e49 in _start ()
> (gdb)
>
> With fio-2.1.13-88-gb2ee7:
> (gdb) bt
> #0  0x00007f871e9de22d in pthread_join () from /lib64/libpthread.so.0
> #1  0x0000000000411939 in wait_for_status_interval_thread_exit () at stat.c:1939
> #2  0x000000000044ce2a in fio_backend () at backend.c:2084
> #3  0x00007f871e45cd1d in __libc_start_main () from /lib64/libc.so.6
> #4  0x000000000040a529 in _start ()

OK, I think I see what this is. Please update to current -git again and 
see if that doesn't fix up this issue.

-- 
Jens Axboe