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From: "Denis V. Lunev" <den@openvz.org>
Message-ID: <575198CC.3070007@openvz.org>
Date: Fri, 3 Jun 2016 17:48:44 +0300
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Subject: Re: [Qemu-devel] [PATCH 3/5] trace: enable tracing in qemu-nbd
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To: Eric Blake <eblake@redhat.com>, qemu-block@nongnu.org, qemu-devel@nongnu.org
Cc: Paolo Bonzini <pbonzini@redhat.com>, Stefan Hajnoczi <stefanha@redhat.com>, Kevin Wolf <kwolf@redhat.com>

On 06/03/2016 05:46 PM, Eric Blake wrote:
> On 06/02/2016 12:35 PM, Denis V. Lunev wrote:
>> Please note, trace_init_backends() must be called in the final process,
>> i.e. after daemonization. This is necessary to keep tracing thread in
>> the proper process.
>>
>> Signed-off-by: Denis V. Lunev <den@openvz.org>
>> CC: Eric Blake <eblake@redhat.com>
>> CC: Paolo Bonzini <pbonzini@redhat.com>
>> CC: Stefan Hajnoczi <stefanha@redhat.com>
>> CC: Kevin Wolf <kwolf@redhat.com>
>> ---
>>   qemu-nbd.c    | 18 +++++++++++++++++-
>>   qemu-nbd.texi | 28 ++++++++++++++++++++++++++++
>>   2 files changed, 45 insertions(+), 1 deletion(-)
>>
>> +"  --trace [[enable=]<pattern>][,events=<file>][,file=<file>]\n"
>> +"                            specify tracing options\n"
>> +++ b/qemu-nbd.texi
>> @@ -92,6 +92,34 @@ Display extra debugging information
>>   Display this help and exit
>>   @item -V, --version
>>   Display version information and exit
>> +@item -T, --trace [events=@var{file}][,file=@var{file}]
> Why do these two descriptions differ?
>
my fault. I have changed description several times. Man is correct