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- cosmic' to 'verification-done-cosmic'. If the problem still exists, change the tag 'verification-needed-cosmic' to 'verification-failed- cosmic'.
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-cosmic -- 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/1818747 Title: Crash in nvme_irq_check() when using threaded interrupts Status in linux package in Ubuntu: Fix Released Status in linux source package in Bionic: Fix Committed Status in linux source package in Cosmic: Fix Committed Status in linux source package in Disco: Fix Released Bug description: [Impact] kernel crashes under load w/ nvme.use_threaded_interrupts=1 [Test Case] Boot w/ nvme.use_threaded_interrupts=1 sudo fio -name=randread -numjobs=8 -filename=/dev/nvme0n1 -rw=randread -ioengine=libaio -direct=1 -iodepth=64 -sync=0 -norandommap -group_reporting -runtime=300 -time_based -bs=4k [ 284.756476] CPU: 0 PID: 1047 Comm: irq/97-nvme0q1 Not tainted 4.18.0-15-generic #16~18.04.1-Ubuntu [ 284.765420] Hardware name: Huawei D06 /D06, BIOS Hisilicon D06 UEFI RC0 - V1.13.01 02/14/2019 [ 284.773930] pstate: 00400089 (nzcv daIf +PAN -UAO) [ 284.778711] pc : nvme_irq_check+0x30/0x48 [nvme] [ 284.783319] lr : __handle_irq_event_percpu+0x68/0x228 [ 284.788356] sp : ffff000008003e70 [Fix] dcca166272722 nvme-pci: fix out of bounds access in nvme_cqe_pending [Regression Risk] Restricted to systems w/ NVMe. There are no upstream patches marked as Fixing the upstream change, which suggests it is not yet know to introduce regressions. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1818747/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : firstname.lastname@example.org Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp