Public bug reported: [ Impact ]
Using eventfd feature of io_uring causes system hangs when using eventfd test [1], as commit [2] states, it needs the cherry-pick of the of commit [3] but also [4] to expose the IORING_FEAT_CUR_PERSONALITY feature (and maybe the commits in between). [ Test case ] - Compile liburing and run test/eventfd - The test should run properly and not skipped + If only [3] is cherry-picked (that should be enough), the test should run once the skip code part is commented out. [ Regression potential ] These patches are already part of linux 5.6 [1] https://git.kernel.dk/cgit/liburing/tree/test/eventfd.c [2] https://git.kernel.dk/cgit/liburing/commit/test/eventfd.c?id=dbebec80 [3] https://github.com/torvalds/linux/commit/50167d5bc585 [4] https://github.com/torvalds/linux/commit/cccf0ee83455 ** Affects: linux (Ubuntu) Importance: Undecided Status: New -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1872092 Title: io_uring eventfd is not working in 5.4.0 Status in linux package in Ubuntu: New Bug description: [ Impact ] Using eventfd feature of io_uring causes system hangs when using eventfd test [1], as commit [2] states, it needs the cherry-pick of the of commit [3] but also [4] to expose the IORING_FEAT_CUR_PERSONALITY feature (and maybe the commits in between). [ Test case ] - Compile liburing and run test/eventfd - The test should run properly and not skipped + If only [3] is cherry-picked (that should be enough), the test should run once the skip code part is commented out. [ Regression potential ] These patches are already part of linux 5.6 [1] https://git.kernel.dk/cgit/liburing/tree/test/eventfd.c [2] https://git.kernel.dk/cgit/liburing/commit/test/eventfd.c?id=dbebec80 [3] https://github.com/torvalds/linux/commit/50167d5bc585 [4] https://github.com/torvalds/linux/commit/cccf0ee83455 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1872092/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp