2017-01-17 18:44 GMT+01:00 Xin Long <lucien.xin@xxxxxxxxx>: > On Wed, Jan 18, 2017 at 1:38 AM, Julian Cordes <julian.cordes@xxxxxxxxx> wrote: >> 2017-01-17 18:30 GMT+01:00 Xin Long <lucien.xin@xxxxxxxxx>: >>> On Tue, Jan 17, 2017 at 9:10 PM, Julian Cordes <julian.cordes@xxxxxxxxx> wrote: >>>> Somehow after calling sctp_sendmsg after calling shutdown with SHUT_WR a >>>> resource is not freed anymore. >>>> >>>> I can reproduce the following behaviour: >>>> When running for example the following test case >>>> https://github.com/nplab/PR_SCTP_Testsuite/blob/master/forward-tsn/sender-side-implementation/shutdown-tests/ttl-policy/shutdown-14.pkt >>>> on my machine, it succeeds the first time. This means that the test case >>>> worked as expected. But if I run the same test case >>>> on the same machine again then the bind-call in the test-case will fail. >>>> I waited longer than 30 minutes but only a reboot of the operating >>>> system seems to help in this case. >>>> >>>> See the following test-cases that all reproduce this issue. All call >>>> sctp_sendmsg after calling shutdown, therefore i suspect >>>> that this is the cause of the issue. >>> I think it's a old issue, the latest kernel has no this issue any more. >>> can you give it a try ? >>> >> Hi, >> i just ran the test-case >> https://github.com/nplab/PR_SCTP_Testsuite/blob/master/forward-tsn/sender-side-implementation/shutdown-tests/ttl-policy/shutdown-14.pkt >> on a recent archlinux kernel: >> $ uname -a >> Linux localhost 4.8.13-1-ARCH #1 SMP PREEMPT Fri Dec 9 07:24:34 CET >> 2016 x86_64 GNU/Linux >> >> The problem still exists. The second time i ran the test case, i got >> as a result: >> shutdown-14.pkt:78: runtime error in bind call: Expected result 0 but >> got -1 with errno 98 (Address already in use) >> > I meant upstream latest kernel: > git clone git://git.kernel.org/pub/scm/linux/kernel/git/davem/net.git > > it's already v4.10-rc3 > you may need to rebuild. :) > > Hi, okay. I have never rebuild a complete linux kernel. Do i just have to clone the specified repository and then run make? Maybe someone that has already v4.10-rc3 can clone packetdrill from https://github.com/nplab/packetdrill and run the specified test-case. If it works multiple times then this has already been fixed, if the bind calls fails the second time then the problem is still there...! >>>> >>>> Testscripts available at: >>>> https://github.com/nplab/PR_SCTP_Testsuite/blob/master/forward-tsn/sender-side-implementation/shutdown-tests/ttl-policy/shutdown-14.pkt >>>> https://github.com/nplab/PR_SCTP_Testsuite/blob/master/forward-tsn/sender-side-implementation/shutdown-tests/ttl-policy/shutdown-1.pkt >>>> https://github.com/nplab/PR_SCTP_Testsuite/blob/master/forward-tsn/sender-side-implementation/shutdown-tests/ttl-policy/shutdown-2.pkt >>>> https://github.com/nplab/PR_SCTP_Testsuite/blob/master/forward-tsn/sender-side-implementation/shutdown-received-tests/ttl-policy/shutdown-1.pkt >>>> https://github.com/nplab/PR_SCTP_Testsuite/blob/master/forward-tsn/sender-side-implementation/shutdown-received-tests/ttl-policy/shutdown-2.pkt -- To unsubscribe from this list: send the line "unsubscribe linux-sctp" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
