[linus:master] [tcp_cubic] 25c1a9ca53: packetdrill.packetdrill/gtests/net/tcp/cubic/cubic-bulk-166k-idle-restart_ipv4-mapped-v6.fail

[kernel test robot]

Hello,

kernel test robot noticed "packetdrill.packetdrill/gtests/net/tcp/cubic/cubic-bulk-166k-idle-restart_ipv4-mapped-v6.fail" on:

(
in fact, there are other failed cases which can pass on parent:

4395a44acb15850e 25c1a9ca53db5780757e7f53e68
---------------- ---------------------------
       fail:runs  %reproduction    fail:runs
           |             |             |
           :6          100%           6:6     packetdrill.packetdrill/gtests/net/tcp/cubic/cubic-bulk-166k-idle-restart_ipv4-mapped-v6.fail
           :6          100%           6:6     packetdrill.packetdrill/gtests/net/tcp/cubic/cubic-bulk-166k-idle-restart_ipv4.fail
           :6          100%           6:6     packetdrill.packetdrill/gtests/net/tcp/cubic/cubic-bulk-166k-idle-restart_ipv6.fail
           :6          100%           6:6     packetdrill.packetdrill/gtests/net/tcp/cubic/cubic-bulk-166k_ipv4-mapped-v6.fail
           :6          100%           6:6     packetdrill.packetdrill/gtests/net/tcp/cubic/cubic-bulk-166k_ipv4.fail
           :6          100%           6:6     packetdrill.packetdrill/gtests/net/tcp/cubic/cubic-bulk-166k_ipv6.fail
)

commit: 25c1a9ca53db5780757e7f53e688b8f916821baa ("tcp_cubic: fix incorrect HyStart round start detection")
https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git master

[test failed on linus/master      405057718a1f9074133979a9f2ff0c9fa4a19948]
[test failed on linux-next/master 5ffa57f6eecefababb8cbe327222ef171943b183]

in testcase: packetdrill
version: packetdrill-x86_64-8d63bbc-1_20250115
with following parameters:


config: x86_64-rhel-9.4-func
compiler: gcc-12
test machine: 8 threads 1 sockets Intel(R) Core(TM) i7-4770 CPU @ 3.40GHz (Haswell) with 8G 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@xxxxxxxxx>
| Closes: https://lore.kernel.org/oe-lkp/202501261315.c6c7dbb4-lkp@xxxxxxxxx



FAIL [/lkp/benchmarks/packetdrill/gtests/net/tcp/cubic/cubic-bulk-166k-idle-restart.pkt (ipv4-mapped-v6)]
stdout: 
20
30
36
stderr: 
FAIL [/lkp/benchmarks/packetdrill/gtests/net/tcp/cubic/cubic-bulk-166k-idle-restart.pkt (ipv6)]
stdout: 
20
30
36
stderr: 

...

FAIL [/lkp/benchmarks/packetdrill/gtests/net/tcp/cubic/cubic-bulk-166k-idle-restart.pkt (ipv4)]
stdout: 
20
30
36
stderr: 

...

FAIL [/lkp/benchmarks/packetdrill/gtests/net/tcp/cubic/cubic-bulk-166k.pkt (ipv4)]
stdout: 
20
30
36
stderr: 

...

FAIL [/lkp/benchmarks/packetdrill/gtests/net/tcp/cubic/cubic-bulk-166k.pkt (ipv4-mapped-v6)]
stdout: 
20
30
36
stderr: 

...

FAIL [/lkp/benchmarks/packetdrill/gtests/net/tcp/cubic/cubic-bulk-166k.pkt (ipv6)]
stdout: 
20
30
36
stderr: 



The kernel config and materials to reproduce are available at:
https://download.01.org/0day-ci/archive/20250126/202501261315.c6c7dbb4-lkp@xxxxxxxxx



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