lkml.org 
[lkml]   [2015]   [Nov]   [23]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
From
Date
SubjectRe: Deadlock between bind and splice
On Tue, Nov 10, 2015 at 3:59 AM, Al Viro <viro@zeniv.linux.org.uk> wrote:
> On Tue, Nov 10, 2015 at 02:38:54AM +0000, Al Viro wrote:
>> On Fri, Nov 06, 2015 at 07:42:15AM -0800, Eric Dumazet wrote:
>>
>> > Thank you for this report.
>> >
>> > pipe is part of fs, not net ;)
>>
>> AF_UNIX bind() vs. socketpair() interplay, OTOH...
>
> FWIW, BSD folks unlock the socket for the duration of mknod - mark it as
> "somebody's trying to bind it" to avoid the fun with racing double bind(),
> but that's about it. Tempting, to be honest...
>
> BTW, why does unix_autobind() do allocation under ->readlock? The allocation
> will be normally used - that if (u->addr) return; part is just dealing with
> an unlikely race, as far as I can see...


Hello,

This is still happening periodically for me. Is there a proposed fix?
I could test it.


\
 
 \ /
  Last update: 2015-11-23 09:41    [W:0.044 / U:0.328 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site