Public bug reported: Hi Ubuntu folks,
Linux kernel 4.15 has introduced a bug in e1000e msix interrupt drivers, which violates the e1000e specification. Specifically, the driver configures auto-clearing of the "OTHER" interrupt types, and the "OTHER" interrupt handler expects to see an uncleared interrupt source for the "OTHER" types; consequently, the link state change interrupts are not identified by the driver, and thus the virtual E1000e device doesn't function correctly inside VMware VMs. I have verified that Linux kernel 4.16.2 has fixed the issues and our on-perm QE has verified 4.16-RC functions correctly inside VMware VMs. Could you please crossport the fix from linux-4.16 into Ubuntu 18.04 that would be frozen in 2 days? Here are the change history: https://lkml.org/lkml/2018/3/25/248 Benjamin Poirier (7): e1000e: Remove Other from EIAC Partial revert "e1000e: Avoid receiver overrun interrupt bursts" e1000e: Fix queue interrupt re-raising in Other interrupt e1000e: Avoid missed interrupts following ICR read e1000e: Fix check_for_link return value with autoneg off Revert "e1000e: Separate signaling for link check/link up" e1000e: Fix link check race condition Thanks, -zheng ** 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/1764892 Title: e1000e msix interrupts broken in linux-image-4.15.0-15-generic Status in linux package in Ubuntu: New Bug description: Hi Ubuntu folks, Linux kernel 4.15 has introduced a bug in e1000e msix interrupt drivers, which violates the e1000e specification. Specifically, the driver configures auto-clearing of the "OTHER" interrupt types, and the "OTHER" interrupt handler expects to see an uncleared interrupt source for the "OTHER" types; consequently, the link state change interrupts are not identified by the driver, and thus the virtual E1000e device doesn't function correctly inside VMware VMs. I have verified that Linux kernel 4.16.2 has fixed the issues and our on-perm QE has verified 4.16-RC functions correctly inside VMware VMs. Could you please crossport the fix from linux-4.16 into Ubuntu 18.04 that would be frozen in 2 days? Here are the change history: https://lkml.org/lkml/2018/3/25/248 Benjamin Poirier (7): e1000e: Remove Other from EIAC Partial revert "e1000e: Avoid receiver overrun interrupt bursts" e1000e: Fix queue interrupt re-raising in Other interrupt e1000e: Avoid missed interrupts following ICR read e1000e: Fix check_for_link return value with autoneg off Revert "e1000e: Separate signaling for link check/link up" e1000e: Fix link check race condition Thanks, -zheng To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1764892/+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
