** Also affects: linux (Ubuntu Disco) Importance: Undecided Assignee: Skipper Bug Screeners (skipper-screen-team) Status: New
** Also affects: linux (Ubuntu Xenial) Importance: Undecided Status: New ** Also affects: linux (Ubuntu Cosmic) Importance: Undecided Status: New ** Also affects: linux (Ubuntu Bionic) Importance: Undecided Status: New ** Changed in: linux (Ubuntu Disco) Assignee: Skipper Bug Screeners (skipper-screen-team) => Canonical Kernel (canonical-kernel) -- 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/1801686 Title: [Ubuntu] qdio: reset old sbal_state flags Status in linux package in Ubuntu: New Status in linux source package in Xenial: New Status in linux source package in Bionic: New Status in linux source package in Cosmic: New Status in linux source package in Disco: New Bug description: Description: qdio: reset old sbal_state flags Symptom: af_iucv socket using HiperSockets may stall. Problem: When allocating a new AOB fails, handle_outbound() is still capable of transmitting the selected buffer (just without async completion). But if a previous transfer on this queue slot used async completion, its sbal_state flags field is still set to QDIO_OUTBUF_STATE_FLAG_PENDING. So when the upper layer driver sees this stale flag, it expects an async completion that never happens. Solution: Unconditionally clear the buffer's flags field. Reproduction: Error inject, simulating out-of-memory. kernel 4.20 Upstream-ID: 64e03ff72623b8c2ea89ca3cb660094e019ed4ae Canonical , please provide this fix for all Releases in Service.... Ubuntu 18.10, 18.04 and 16.04 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1801686/+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