netdev - [linux-next:master] [tcp] 614e8316aa: packetdrill.packetdrill/gtests/net/tcp/fastopen/server/client-ack-dropped-then-recovery-ms-timestamps

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Date: Mon, 30 Oct 2023 22:46:06 +0800
From: kernel test robot <oliver.sang@...el.com>
To: Eric Dumazet <edumazet@...gle.com>
CC: <oe-lkp@...ts.linux.dev>, <lkp@...el.com>, Linux Memory Management List
	<linux-mm@...ck.org>, "David S. Miller" <davem@...emloft.net>,
	<netdev@...r.kernel.org>, <oliver.sang@...el.com>
Subject: [linux-next:master] [tcp]  614e8316aa:
 packetdrill.packetdrill/gtests/net/tcp/fastopen/server/client-ack-dropped-then-recovery-ms-timestamps_ipv4-mapped-v6.fail



Hello,

kernel test robot noticed "packetdrill.packetdrill/gtests/net/tcp/fastopen/server/client-ack-dropped-then-recovery-ms-timestamps_ipv4-mapped-v6.fail" on:

(in fact, we noticed 3 tests failed on this commit with high rate, but keep
clean on parent

af7721448a609d19 614e8316aa4cafba3e204cb8ee4
---------------- ---------------------------
       fail:runs  %reproduction    fail:runs
           |             |             |
           :20          55%          11:20    packetdrill.packetdrill/gtests/net/tcp/fastopen/server/client-ack-dropped-then-recovery-ms-timestamps_ipv4-mapped-v6.fail
           :20          70%          14:20    packetdrill.packetdrill/gtests/net/tcp/fastopen/server/client-ack-dropped-then-recovery-ms-timestamps_ipv4.fail
           :20          45%           9:20    packetdrill.packetdrill/gtests/net/tcp/fastopen/server/client-ack-dropped-then-recovery-ms-timestamps_ipv6.fail
)

commit: 614e8316aa4cafba3e204cb8ee48bd12b92f3d93 ("tcp: add support for usec resolution in TCP TS values")
https://git.kernel.org/cgit/linux/kernel/git/next/linux-next.git master

[test failed on linux-next/master 66f1e1ea3548378ff6387b1ce0b40955d54e86aa]

in testcase: packetdrill
version: packetdrill-x86_64-31fbbb7-1_20231004
with following parameters:


compiler: gcc-12
test machine: 16 threads 1 sockets Intel(R) Xeon(R) CPU D-1541 @ 2.10GHz (Broadwell-DE) with 48G memory

(please refer to attached dmesg/kmsg for entire log/backtrace)


If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <oliver.sang@...el.com>
| Closes: https://lore.kernel.org/oe-lkp/202310302216.f79d78bc-oliver.sang@intel.com


...

FAIL [/lkp/benchmarks/packetdrill/gtests/net/tcp/fastopen/server/client-ack-dropped-then-recovery-ms-timestamps.pkt (ipv6)]

...

FAIL [/lkp/benchmarks/packetdrill/gtests/net/tcp/fastopen/server/client-ack-dropped-then-recovery-ms-timestamps.pkt (ipv4-mapped-v6)]

...

FAIL [/lkp/benchmarks/packetdrill/gtests/net/tcp/fastopen/server/client-ack-dropped-then-recovery-ms-timestamps.pkt (ipv4)]

...



The kernel config and materials to reproduce are available at:
https://download.01.org/0day-ci/archive/20231030/202310302216.f79d78bc-oliver.sang@intel.com



-- 
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki