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sJ6HU8alx8eb10j/L0/uxIZW9lHaI0asFL3fkzdsgP0Yt97oI8UR1oXzvawm8pTkTYQ1NZY6rtKEtY3MdjJNtqsq46w5Q4gjKP/nMwGM2NPb5WMu2Y4dhzM+XxGIB4Y/CSEFTuL8X65ifasK8tActVdqErasadcUfR3d3oPdS/t0GWWZfj+8QTyIw63QqXoKtt2Dhd3Zi8n+dh1Y43JV1VRwP0aGCnWSLNapTMrykUoOEF39aTjjYofFlgijaus2H+QJpYZgFHaR1N8xEzA2KtX/eNfTvzD03ClscX85+sNc5sCF6qDF6KBi+fYLh+2tvh/kXtA8HjrutmU0QGBK6b8/NEwGWTfMc6Ke65UmNTvO40V6EntbQXTqVKuzNOkZsP4BNXKC7VXOeQqKpwDNeBunDn9xbUauniqPkte1brSa0JX1Y1EN5IIXPmh71TRFJPuphlr6a6r/cGh0gGZ4h2mf/c+CCEAqGwR+ZTqjud66DCDMOkfbkE5+/7dIFsk3yhN3BkCpL1/FYmVfXAM+e0uv2rm4B/xEfwCM94gWcu1SUXqO2M8llixlWyqIbbQ6scezoXS9dk/GQqqs= X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: Hello, kernel test robot noticed "kernel-selftests.uevent.uevent_filtering.fail" on: commit: 5b45a753776be5d21cf395ec97e81c9187fbeaca ("selftests: uevent filtering: fix return on error in uevent_listener") https://git.kernel.org/cgit/linux/kernel/git/next/linux-next.git master [test failed on linux-next/master 2030579113a1b1b5bfd7ff24c0852847836d8fd1] in testcase: kernel-selftests version: kernel-selftests-x86_64-60acb023-1_20230329 with following parameters: group: group-03 compiler: gcc-12 test machine: 36 threads 1 sockets Intel(R) Core(TM) i9-10980XE CPU @ 3.00GHz (Cascade Lake) with 32G memory (please refer to attached dmesg/kmsg for entire log/backtrace) we also noticed this issue does not always happen. as below, we saw 15 failures out of 50 runs. however, parent keeps passing. 37013b557b7f39e6 5b45a753776be5d21cf395ec97e ---------------- --------------------------- fail:runs %reproduction fail:runs | | | :50 30% 15:50 kernel-selftests.uevent.uevent_filtering.fail 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 | Closes: https://lore.kernel.org/oe-lkp/202310261454.46082aaa-oliver.sang@intel.com TAP version 13 1..1 # timeout set to 300 # selftests: uevent: uevent_filtering # TAP version 13 # 1..1 # # Starting 1 tests from 1 test cases. # # RUN global.uevent_filtering ... # add@/devices/virtual/mem/fullACTION=addDEVPATH=/devices/virtual/mem/fullSUBSYSTEM=memSYNTH_UUID=0MAJOR=1MINOR=7DEVNAME=fullDEVMODE=0666SEQNUM=3532 # add@/devices/virtual/mem/fullACTION=addDEVPATH=/devices/virtual/mem/fullSUBSYSTEM=memSYNTH_UUID=0MAJOR=1MINOR=7DEVNAME=fullDEVMODE=0666SEQNUM=3546 # add@/devices/virtual/mem/fullACTION=addDEVPATH=/devices/virtual/mem/fullSUBSYSTEM=memSYNTH_UUID=0MAJOR=1MINOR=7DEVNAME=fullDEVMODE=0666SEQNUM=3556 # add@/devices/virtual/mem/fullACTION=addDEVPATH=/devices/virtual/mem/fullSUBSYSTEM=memSYNTH_UUID=0MAJOR=1MINOR=7DEVNAME=fullDEVMODE=0666SEQNUM=3585 # add@/devices/virtual/mem/fullACTION=addDEVPATH=/devices/virtual/mem/fullSUBSYSTEM=memSYNTH_UUID=0MAJOR=1MINOR=7DEVNAME=fullDEVMODE=0666SEQNUM=3595 # No buffer space available - Failed to receive uevent # # uevent_filtering.c:479:uevent_filtering:Expected 0 (0) == ret (-1) # # uevent_filtering: Test failed at step #10 # # FAIL global.uevent_filtering # not ok 1 global.uevent_filtering # # FAILED: 0 / 1 tests passed. # # Totals: pass:0 fail:1 xfail:0 xpass:0 skip:0 error:0 not ok 1 selftests: uevent: uevent_filtering # exit=1 The kernel config and materials to reproduce are available at: https://download.01.org/0day-ci/archive/20231026/202310261454.46082aaa-oliver.sang@intel.com -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki