[cifs-protocol] [EXTERNAL] Re: [REG:120030321000983] SMB2: opening file for READ_CONTROL doesn't trigger lease break

Jeff McCashland jeffm at microsoft.com
Wed Mar 4 17:08:39 UTC 2020

Hi slow,

Thank you for the trace!

That's not my call and will be verified when the change request is worked on. However, commentary in the code from Win7 days suggests it is by design. 

Best regards,
Jeff McCashland | Senior Escalation Engineer | Microsoft Protocol Open Specifications Team 
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-----Original Message-----
From: Ralph Boehme <slow at samba.org> 
Sent: Wednesday, March 4, 2020 6:20 AM
To: Jeff McCashland <jeffm at microsoft.com>
Cc: cifs-protocol at lists.samba.org; support <support at mail.support.microsoft.com>
Subject: Re: [cifs-protocol] [EXTERNAL] Re: [REG:120030321000983] SMB2: opening file for READ_CONTROL doesn't trigger lease break

HI Jeff,

Am 3/4/20 um 10:53 AM schrieb Ralph Boehme via cifs-protocol:
> Am 3/3/20 um 10:23 PM schrieb Jeff McCashland:
>> However, note that legacy Oplocks do break on READ_CONTROL. If I understand our source code correctly, Leases never broke on READ_CONTROL, but we didn't catch the variance in the doc. 
> I was afraid that this would be the case. :)
> Just to be sure, I'll rewrite the testcase with oplocks instead of leases.

confirmed, trace attached (packets 123 ff). Are we sure this behaviour is by design and not a bug?


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