---- 在 星期四, 2020-04-30 17:15:20 Chengguang Xu <cgxu519@xxxxxxxxxxxx> 撰写 ---- > Hi > > I'm doing some tests for my new version of syncfs improvement patch and I found an > interesting problem when combining dirty data && godown && nfs_export. > > My expectation is Pass or Fail all tests listed below, Test2 looks a bit strange and in my > opinion there is no strong connection between nfs_export/index and dirty data. > Any idea? > > > Test env and step like below: > > Test1: > Compile module with nfs_export enabled > Run xfstest generic/474 ==> PASS > > Test2: > Compile module with nfs_export enabled > Comment syncfs step in the test > Run xfstest generic/474 ==> Hang > > Test3: > Compile module with nfs_export disabled > Run xfstest generic/474 ==> PASS > > Test4: > Compile module with nfs_export disabled > Comment syncfs step in the test > Run xfstest generic/474 ==> FAIL > Additional information: Overlayfs version: latest next branch of miklos tree (5.7-rc2) Underlying fs: xfs Thanks, cgxu