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Date: Tue, 21 Apr 2015 17:09:09 -0700 From: Eric Dumazet <eric.dumazet@...il.com> To: Josh Hunt <johunt@...mai.com> Cc: David Miller <davem@...emloft.net>, netdev@...r.kernel.org, edumazet@...gle.com Subject: Re: [PATCH] fix tcp fin memory accounting On Tue, 2015-03-24 at 01:11 -0500, Josh Hunt wrote: > On 03/24/2015 01:10 AM, David Miller wrote: > > From: Josh Hunt <johunt@...mai.com> > > Date: Fri, 20 Mar 2015 12:36:24 -0500 > > > >> Would it be possible to queue up 355a901e6cf1 (tcp: make connect() > >> mem charging friendly) for stable as well? That is the commit that > >> fixes this problem in the tcp_connect()/tcp_send_syn_data() cases. > > > > Done. > > > > Thanks David. Note that this patch adds a deadlock possibility in some stress situations. If a process owning some tcp socket dies, and tcp_mem[2] is already hit, all sk_stream_alloc_skb() can return NULL and we loop in tcp_send_fin(), making no progress because we can not free any tcp memory. -- To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
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