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Date: Tue, 20 Sep 2022 13:22:20 +0800 From: kernel test robot <oliver.sang@...el.com> To: Eric Dumazet <edumazet@...gle.com> CC: <lkp@...ts.01.org>, <lkp@...el.com>, "David S. Miller" <davem@...emloft.net>, Doug Porter <dsp@...com>, Soheil Hassas Yeganeh <soheil@...gle.com>, Neal Cardwell <ncardwell@...gle.com>, <linux-kernel@...r.kernel.org>, <netdev@...r.kernel.org> Subject: [tcp] 4bfe744ff1: packetdrill.packetdrill/gtests/net/tcp/epoll/epoll_out_edge_default_notsent_lowat_ipv4-mapped-v6.fail Greeting, FYI, we noticed the following commit (built with gcc-11): commit: 4bfe744ff1644fbc0a991a2677dc874475dd6776 ("tcp: fix potential xmit stalls caused by TCP_NOTSENT_LOWAT") https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git master in testcase: packetdrill version: packetdrill-x86_64-329d89e-1_20220824 with following parameters: on test machine: 8 threads 1 sockets Intel(R) Core(TM) i7-7700 CPU @ 3.60GHz (Kaby Lake) with 32G memory caused below changes (please refer to attached dmesg/kmsg for entire log/backtrace): If you fix the issue, kindly add following tag | Reported-by: kernel test robot <oliver.sang@...el.com> | Link: https://lore.kernel.org/r/202209201359.3f33d97f-oliver.sang@intel.com we actually also observed other tests failed on this commit but pass on parent: (more details are in attached dmesg and 'packetdrill' file) ========================================================================================= tbox_group/testcase/rootfs/kconfig/compiler: lkp-kbl-d01/packetdrill/debian-11.1-x86_64-20220510.cgz/x86_64-rhel-8.3-func/gcc-11 1fcb8fb3522f5b0f 4bfe744ff1644fbc0a991a2677d ---------------- --------------------------- fail:runs %reproduction fail:runs | | | :30 100% 30:30 packetdrill.packetdrill/gtests/net/tcp/epoll/epoll_out_edge_default_notsent_lowat_ipv4-mapped-v6.fail :30 100% 30:30 packetdrill.packetdrill/gtests/net/tcp/epoll/epoll_out_edge_default_notsent_lowat_ipv4.fail :30 100% 30:30 packetdrill.packetdrill/gtests/net/tcp/epoll/epoll_out_edge_ipv4-mapped-v6.fail :30 100% 30:30 packetdrill.packetdrill/gtests/net/tcp/epoll/epoll_out_edge_ipv4.fail :30 100% 30:30 packetdrill.packetdrill/gtests/net/tcp/epoll/epoll_out_edge_notsent_lowat_ipv4-mapped-v6.fail :30 100% 30:30 packetdrill.packetdrill/gtests/net/tcp/epoll/epoll_out_edge_notsent_lowat_ipv4.fail stdout: stderr: FAIL [/lkp/benchmarks/packetdrill/gtests/net/tcp/epoll/epoll_out_edge.pkt (ipv4)] stdout: stderr: FAIL [/lkp/benchmarks/packetdrill/gtests/net/tcp/epoll/epoll_out_edge_default_notsent_lowat.pkt (ipv4-mapped-v6)] To reproduce: git clone https://github.com/intel/lkp-tests.git cd lkp-tests sudo bin/lkp install job.yaml # job file is attached in this email bin/lkp split-job --compatible job.yaml # generate the yaml file for lkp run sudo bin/lkp run generated-yaml-file # if come across any failure that blocks the test, # please remove ~/.lkp and /lkp dir to run from a clean state. -- 0-DAY CI Kernel Test Service https://01.org/lkp View attachment "config-5.18.0-rc3-00094-g4bfe744ff164" of type "text/plain" (165190 bytes) View attachment "job-script" of type "text/plain" (5348 bytes) Download attachment "dmesg.xz" of type "application/x-xz" (26932 bytes) View attachment "packetdrill" of type "text/plain" (26865 bytes) View attachment "job.yaml" of type "text/plain" (4335 bytes) View attachment "reproduce" of type "text/plain" (423 bytes)
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