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A socket connection made in ax.25 is not closed when session is
completed. The heartbeat timer is stopped prematurely and this is
where the socket gets closed. Allow heatbeat timer to run to close
socket. Symptom occurs in kernels >= 4.2.0
Originally sent 6/15/2016. Resend with distribution list matching
scripts/maintainer.pl output.
Signed-off-by: Basil Gunn <basil@pacabunga.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Remove all #inclusions of asm/system.h preparatory to splitting and killing
it. Performed with the following command:
perl -p -i -e 's!^#\s*include\s*<asm/system[.]h>.*\n!!' `grep -Irl '^#\s*include\s*<asm/system[.]h>' *`
Signed-off-by: David Howells <dhowells@redhat.com>
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This reverts commit 30902dc3cb0ea1cfc7ac2b17bcf478ff98420d74.
It causes all kinds of problems, based upon a report by
Bernard (f6bvp) and analysis by Jarek Poplawski.
Signed-off-by: David S. Miller <davem@davemloft.net>
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Tihomir Heidelberg - 9a4gl, reports:
--------------------
I would like to direct you attention to one problem existing in ax.25
kernel since 2.4. If listening socket is closed and its SKB queue is
released but those sockets get weird. Those "unAccepted()" sockets
should be destroyed in ax25_std_heartbeat_expiry, but it will not
happen. And there is also a note about that in ax25_std_timer.c:
/* Magic here: If we listen() and a new link dies before it
is accepted() it isn't 'dead' so doesn't get removed. */
This issue cause ax25d to stop accepting new connections and I had to
restarted ax25d approximately each day and my services were unavailable.
Also netstat -n -l shows invalid source and device for those listening
sockets. It is strange why ax25d's listening socket get weird because of
this issue, but definitely when I solved this bug I do not have problems
with ax25d anymore and my ax25d can run for months without problems.
--------------------
Actually as far as I can see, this problem is even in releases
as far back as 2.2.x as well.
It seems senseless to special case this test on TCP_LISTEN state.
Anything still stuck in state 0 has no external references and
we can just simply kill it off directly.
Signed-off-by: David S. Miller <davem@davemloft.net>
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net/ax25/ax25_route.c:251:13: warning: context imbalance in
'ax25_rt_seq_start' - wrong count at exit
net/ax25/ax25_route.c:276:13: warning: context imbalance in 'ax25_rt_seq_stop'
- unexpected unlock
net/ax25/ax25_std_timer.c:65:25: warning: expensive signed divide
net/ax25/ax25_uid.c:46:1: warning: symbol 'ax25_uid_list' was not declared.
Should it be static?
net/ax25/ax25_uid.c:146:13: warning: context imbalance in 'ax25_uid_seq_start'
- wrong count at exit
net/ax25/ax25_uid.c:169:13: warning: context imbalance in 'ax25_uid_seq_stop'
- unexpected unlock
net/ax25/af_ax25.c:573:28: warning: expensive signed divide
net/ax25/af_ax25.c:1865:13: warning: context imbalance in 'ax25_info_start' -
wrong count at exit
net/ax25/af_ax25.c:1888:13: warning: context imbalance in 'ax25_info_stop' -
unexpected unlock
net/ax25/ax25_ds_timer.c:133:25: warning: expensive signed divide
Signed-off-by: Eric Dumazet <dada1@cosmosbay.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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After Al Viro (finally) succeeded in removing the sched.h #include in module.h
recently, it makes sense again to remove other superfluous sched.h includes.
There are quite a lot of files which include it but don't actually need
anything defined in there. Presumably these includes were once needed for
macros that used to live in sched.h, but moved to other header files in the
course of cleaning it up.
To ease the pain, this time I did not fiddle with any header files and only
removed #includes from .c-files, which tend to cause less trouble.
Compile tested against 2.6.20-rc2 and 2.6.20-rc2-mm2 (with offsets) on alpha,
arm, i386, ia64, mips, powerpc, and x86_64 with allnoconfig, defconfig,
allmodconfig, and allyesconfig as well as a few randconfigs on x86_64 and all
configs in arch/arm/configs on arm. I also checked that no new warnings were
introduced by the patch (actually, some warnings are removed that were emitted
by unnecessarily included header files).
Signed-off-by: Tim Schmielau <tim@physik3.uni-rostock.de>
Acked-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Lots of places just needs the states, not even linux/tcp.h, where this
enum was, needs it.
This speeds up development of the refactorings as less sources are
rebuilt when things get moved from net/tcp.h.
Signed-off-by: Arnaldo Carvalho de Melo <acme@ghostprotocols.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.
Let it rip!
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