Re: [Bugme-new] [Bug 10737] New: pktgen procfs problem

[Patrick McHardy <kaber@trash.net>]

Andrew Morton wrote:
> On Sun, 18 May 2008 03:39:42 +0200 Patrick McHardy <kaber@trash.net> wrote:
>
>   
>> I've been looking into the same problem, without much success so
>> far. The problem appears to affect any /proc/net file, but not
>> files outside of /proc/net, so I'm guessing its net-ns related.
>> A testcase found by Ben Greear is opening the file multiple times:
>>
>> # /tmp/open /proc/net/kpktgen_0
>>
>> => refcnt goes to 1
>>
>> ^C
>>
>> => refcnt goes to 0
>>
>> Without ^C and opening the file a second time:
>>
>> # /tmp/open /proc/net/kpktgen_0
>>
>> => refcnt goes to 2 (sometimes also 11)
>>
>> ^C
>>
>> => refcnt stays at previous value.
>>
>> The refcnt even leaks if the file can't be successfully opened,
>> for example because of lacking permissions.
>>     
>
> urgh.  Is any of this known to be post-2.6.25?
>   

2.6.25 is also affected. I don't know about earlier kernels.