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Date:      Mon, 6 Jun 2016 21:08:58 -0700
From:      Conrad Meyer <cem@freebsd.org>
To:        Konstantin Belousov <kostikbel@gmail.com>
Cc:        Mark Johnston <markj@freebsd.org>, freebsd-current <freebsd-current@freebsd.org>
Subject:   Re: thread suspension when dumping core
Message-ID:  <CAG6CVpW7uWY0umFj8z7gNY5vQWPqxALzD38brB5BPTKSm9BsGw@mail.gmail.com>
In-Reply-To: <20160607024610.GI38613@kib.kiev.ua>
References:  <20160604022347.GA1096@wkstn-mjohnston.west.isilon.com> <20160604093236.GA38613@kib.kiev.ua> <20160606171311.GC10101@wkstn-mjohnston.west.isilon.com> <20160607024610.GI38613@kib.kiev.ua>

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On Mon, Jun 6, 2016 at 7:46 PM, Konstantin Belousov <kostikbel@gmail.com> wrote:
> On Mon, Jun 06, 2016 at 10:13:11AM -0700, Mark Johnston wrote:
>> On Sat, Jun 04, 2016 at 12:32:36PM +0300, Konstantin Belousov wrote:
>> > Does your fs both set TDF_SBDRY and call lf_advlock()/lf_advlockasync() ?
>>
>> It doesn't. This code belongs to a general framework for distributed FS
>> locks; in this particular case, the application was using it to acquire
>> a custom advisory lock.
> What statement was not true: that your code sets TDF_SBDRY, or that
> the lf_advlock() function was called ?

We set TDF_SBDRY; we don't call lf_advlock().

I don't have the core yet, so I can't get the thread information, sorry.

Best,
Conrad



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