Re: Problem with patch "make nlmsg_end() and genlmsg_end() void"

2015-06-17 Thread David Woodhouse
On Thu, 2015-06-11 at 23:03 +0100, David Woodhouse wrote: > On Thu, 2015-06-11 at 01:31 +0100, David Woodhouse wrote: > > On Tue, 2015-06-09 at 17:49 -0700, Eric Dumazet wrote: > > > > I've added some debugging, and it seems that when it deadlocks, > > > > glibc > > > > doesn't get *any* response

Re: Problem with patch "make nlmsg_end() and genlmsg_end() void"

2015-06-11 Thread David Woodhouse
On Thu, 2015-06-11 at 01:31 +0100, David Woodhouse wrote: > On Tue, 2015-06-09 at 17:49 -0700, Eric Dumazet wrote: > > > I've added some debugging, and it seems that when it deadlocks, glibc > > > doesn't get *any* response to its RTM_GETADDR request. I know we'd get > > > ENOBUFS is a *response* w

Re: Problem with patch "make nlmsg_end() and genlmsg_end() void"

2015-06-11 Thread David Miller
From: David Woodhouse Date: Thu, 11 Jun 2015 01:31:28 +0100 > On Tue, 2015-06-09 at 17:49 -0700, Eric Dumazet wrote: >> > I've added some debugging, and it seems that when it deadlocks, glibc >> > doesn't get *any* response to its RTM_GETADDR request. I know we'd get >> > ENOBUFS is a *response*

Re: Problem with patch "make nlmsg_end() and genlmsg_end() void"

2015-06-10 Thread David Woodhouse
On Tue, 2015-06-09 at 17:49 -0700, Eric Dumazet wrote: > > I've added some debugging, and it seems that when it deadlocks, glibc > > doesn't get *any* response to its RTM_GETADDR request. I know we'd get > > ENOBUFS is a *response* was dropped... but what about when the request > > itself is droppe

Re: Problem with patch "make nlmsg_end() and genlmsg_end() void"

2015-06-09 Thread Eric Dumazet
On Tue, 2015-06-09 at 14:34 +0100, David Woodhouse wrote: > On Wed, 2015-04-08 at 15:08 +0200, Johannes Berg wrote: > > On Wed, 2015-04-08 at 13:03 +0100, David Woodhouse wrote: > > > > > I'm not sure if this is entirely fixed. In Fedora 22 (4.0.0-rc5-git4) > > > I'm occasionally seeing glibc dead

Re: Problem with patch "make nlmsg_end() and genlmsg_end() void"

2015-06-09 Thread David Woodhouse
On Wed, 2015-04-08 at 15:08 +0200, Johannes Berg wrote: > On Wed, 2015-04-08 at 13:03 +0100, David Woodhouse wrote: > > > I'm not sure if this is entirely fixed. In Fedora 22 (4.0.0-rc5-git4) > > I'm occasionally seeing glibc deadlock in __check_pf() on a netlink > > recvmsg(), here: > > https://s

Re: Problem with patch "make nlmsg_end() and genlmsg_end() void"

2015-04-20 Thread David Woodhouse
On Wed, 2015-04-08 at 15:12 +0100, David Woodhouse wrote: > On Wed, 2015-04-08 at 15:08 +0200, Johannes Berg wrote: > > Additionally, the failure mode of this was the process running out of > > memory due to receiving the same results over and over again - does that > > happen for you? It seems it