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Date:   Sat, 27 Jun 2020 15:59:05 -0700
From:   Cameron Berkenpas <>
To:     Cong Wang <>
Cc:     Roman Gushchin <>, Zefan Li <>,
        Linux Kernel Network Developers <>,
        Peter Geis <>,
        Lu Fengqi <>,
        Daniël Sonck <>,
        Daniel Borkmann <>,
        Tejun Heo <>
Subject: Re: [Patch net] cgroup: fix cgroup_sk_alloc() for sk_clone_lock()

The box has been up without issue for over 25 hours now. The patch seems 

On 6/26/20 3:03 PM, Cameron Berkenpas wrote:
> Box has been up for 25 minutes without issue. Probably the patch 
> works, but I can further confirm by tomorrow.
> On 6/26/2020 10:58 AM, Cong Wang wrote:
>> On Thu, Jun 25, 2020 at 10:23 PM Cameron Berkenpas <> 
>> wrote:
>>> Hello,
>>> Somewhere along the way I got the impression that it generally takes
>>> those affected hours before their systems lock up. I'm (generally) able
>>> to reproduce this issue much faster than that. Regardless, I can 
>>> help test.
>>> Are there any patches that need testing or is this all still pending
>>> discussion around the  best way to resolve the issue?
>> Yes. I come up with a (hopefully) much better patch in the attachment.
>> Can you help to test it? You need to unapply the previous patch before
>> applying this one.
>> (Just in case of any confusion: I still believe we should check NULL on
>> top of this refcnt fix. But it should be a separate patch.)
>> Thank you!

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