This bug is awaiting verification that the kernel in -proposed solves the problem. Please test the kernel and update this bug with the results. If the problem is solved, change the tag 'verification-needed- xenial' to 'verification-done-xenial'.
If verification is not done by 5 working days from today, this fix will be dropped from the source code, and this bug will be closed. See https://wiki.ubuntu.com/Testing/EnableProposed for documentation how to enable and use -proposed. Thank you! ** Tags added: verification-needed-xenial -- 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/1588468 Title: CAPI: CGZIP AFU contexts do not receive interrupts after heavy afu open/close Status in linux package in Ubuntu: Fix Released Status in linux source package in Xenial: Fix Committed Status in linux source package in Yakkety: Fix Released Bug description: == Comment: #0 - Breno Henrique Leitao <bren...@br.ibm.com> - 2016-06-02 13:36:27 == ---Problem Description--- We are developing a CAPI version of our FPGA gzip compression adapter. We use AFU directed mode to support multiple processes. Our testcase is opening a huge number of AFU context and sending small work-requests to the card. After n sec we close the AFU contexts. What we observe is that after a while we get a set of AFU contexts, which do not see interrupts anymore. We have traced the interrupt packet (msix I guess) to the very low level of the FPGA logic and we strongly assume that the interrupt packet goes out. Still the Linux kernel is not seeing the interrupt and our application times out but the work request was successfully finished. In order to fix this bug, the follow patches are required: 2bc79ffcbb817873cc43d63118008ab75181b73d cxl: Poll for outstanding IRQs when detaching a context d6776bba44d9752f6cdf640046070e71ee4bba7b cxl: Keep IRQ mappings on context teardown This request is for Ubuntu 16.04.1 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1588468/+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
