Date: Wed, 13 Jan 2016 13:15:52 +0000 From: "Lewis, Fred" <flewis@panasas.com> To: "Sundararajan, Lakshmi" <lakshmi.n@msystechnologies.com>, "Hans Petter Selasky" <hps@selasky.org> Cc: "freebsd-net@freebsd.org" <freebsd-net@freebsd.org>, "Kothavade, Pushkar" <pushkar.kothavade@msystechnologies.com>, "Pokala, Ravi" <rpokala@panasas.com> Subject: Re: Kernel panic from lagg_ioctl and lagg_port_ioctl Message-ID: <D2BBB7FA.13A6D%flewis@panasas.com> In-Reply-To: <CA%2BNkpghQRb9%2BZFdLf0ugyt5aubz80YBuMy7TQO_c8Uf2wVRwjg@mail.gmail.com> References: <D2BAD6A1.13A40%flewis@panasas.com> <569643F4.5060209@selasky.org> <CA%2BNkpghQRb9%2BZFdLf0ugyt5aubz80YBuMy7TQO_c8Uf2wVRwjg@mail.gmail.com>
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Hi Hans, Can you give an example of draining the callouts? Thanks, -Fred On 1/13/16 7:33 AM, "Lakshmi Narasimhan Sundararajan" <lakshmi.n@msystechno= logies.com<mailto:lakshmi.n@msystechnologies.com>> wrote: Hi Hans, Yes, we understand that piece of code. But Panasas wants this change to MFC to 10.3. This issue is not seen in 11.= Would that happen? I have not seen acknowledgement of this issue or confir= mation of MFC to 10.3. That information will help us plan. Regards, LN On Wed, Jan 13, 2016 at 6:02 PM, Hans Petter Selasky <hps@selasky.org<mailt= o:hps@selasky.org>> wrote: On 01/12/16 22:13, Lewis, Fred wrote: In earlier versions of lagg_ioctl() (e.g. stable/10/r171247) all of the cal= lout vectors are set to NULL which I think will prevent the problem. Similar NUL= Ling code is also in stable/7. I didn't check other releases. Don't forget to drain the callouts before NULL-ing them! --HPS DISCLAIMER The information in this e-mail is confidential and may be subject to legal = privilege. It is intended solely for the addressee. Access to this e-mail b= y anyone else is unauthorized. If you have received this communication in e= rror, please address with the subject heading "Received in error," send to = it@msystechnologies.com<mailto:it@msystechnologies.com>, then delete the e= -mail and destroy any copies of it. If you are not the intended recipient, = any disclosure, copying, distribution or any action taken or omitted to be = taken in reliance on it, is prohibited and may be unlawful. The views, opin= ions, conclusions and other information expressed in this electronic mail a= nd any attachments are not given or endorsed by the company unless otherwis= e indicated by an authorized representative independent of this message. MSys cannot guarantee that e-mail communications are secure or error-free, = as information could be intercepted, corrupted, amended, lost, destroyed, a= rrive late or incomplete, or contain viruses, though all reasonable precaut= ions have been taken to ensure no viruses are present in this e-mail. As ou= r company cannot accept responsibility for any loss or damage arising from = the use of this e-mail or attachments we recommend that you subject these t= o your virus checking procedures prior to use
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