[Kernel-packages] [Bug 1806488] Re: Support non-strict iommu mode on arm64

2019-02-04 Thread Launchpad Bug Tracker
This bug was fixed in the package linux - 4.19.0-12.13 --- linux (4.19.0-12.13) disco; urgency=medium * linux: 4.19.0-12.13 -proposed tracker (LP: #1813664) * kernel oops in bcache module (LP: #1793901) - SAUCE: bcache: never writeback a discard operation * Disco update:

[Kernel-packages] [Bug 1806488] Re: Support non-strict iommu mode on arm64

2019-02-04 Thread Launchpad Bug Tracker
This bug was fixed in the package linux - 4.18.0-14.15 --- linux (4.18.0-14.15) cosmic; urgency=medium * linux: 4.18.0-14.15 -proposed tracker (LP: #1811406) * CPU hard lockup with rigorous writes to NVMe drive (LP: #1810998) - blk-wbt: Avoid lock contention and thundering

[Kernel-packages] [Bug 1806488] Re: Support non-strict iommu mode on arm64

2019-01-28 Thread Launchpad Bug Tracker
This bug was fixed in the package linux - 4.15.0-44.47 --- linux (4.15.0-44.47) bionic; urgency=medium * linux: 4.15.0-44.47 -proposed tracker (LP: #1811419) * Packaging resync (LP: #1786013) - [Packaging] update helper scripts * CPU hard lockup with rigorous writes to

[Kernel-packages] [Bug 1806488] Re: Support non-strict iommu mode on arm64

2019-01-17 Thread Ike Panhc
Performance on NVMe has increased a lot. -update kernel Run status group 0 (all jobs): READ: bw=1358MiB/s (1424MB/s), 1358MiB/s-1358MiB/s (1424MB/s-1424MB/s), io=133GiB (142GB), run=19-19msec -proposed kernel Run status group 0 (all jobs): READ: bw=1406MiB/s (1475MB/s),

[Kernel-packages] [Bug 1806488] Re: Support non-strict iommu mode on arm64

2019-01-16 Thread dann frazier
** Description changed: [Impact] The Intel IOMMU driver provides an option for strict mode. When disabled, batching of IOTLB flush operations is permitted, allowing the user to trade-off isolation for improved performance. Ubuntu's kernel currently lacks a parity for this feature for ARM.

[Kernel-packages] [Bug 1806488] Re: Support non-strict iommu mode on arm64

2019-01-15 Thread Brad Figg
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- bionic' to 'verification-done-bionic'. If the problem still exists, change the tag

[Kernel-packages] [Bug 1806488] Re: Support non-strict iommu mode on arm64

2019-01-15 Thread Brad Figg
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

[Kernel-packages] [Bug 1806488] Re: Support non-strict iommu mode on arm64

2019-01-11 Thread Kleber Sacilotto de Souza
** Changed in: linux (Ubuntu Bionic) Status: In Progress => Fix Committed -- 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/1806488 Title: Support non-strict iommu mode on arm64

[Kernel-packages] [Bug 1806488] Re: Support non-strict iommu mode on arm64

2019-01-11 Thread Kleber Sacilotto de Souza
** Changed in: linux (Ubuntu Cosmic) Status: In Progress => Fix Committed -- 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/1806488 Title: Support non-strict iommu mode on arm64

[Kernel-packages] [Bug 1806488] Re: Support non-strict iommu mode on arm64

2019-01-09 Thread Seth Forshee
** Changed in: linux (Ubuntu Disco) Status: In Progress => Fix Committed -- 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/1806488 Title: Support non-strict iommu mode on arm64

[Kernel-packages] [Bug 1806488] Re: Support non-strict iommu mode on arm64

2018-12-21 Thread dann frazier
** Changed in: linux (Ubuntu Bionic) Status: New => In Progress -- 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/1806488 Title: Support non-strict iommu mode on arm64 Status in

[Kernel-packages] [Bug 1806488] Re: Support non-strict iommu mode on arm64

2018-12-19 Thread dann frazier
** Changed in: linux (Ubuntu Cosmic) Status: New => In Progress -- 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/1806488 Title: Support non-strict iommu mode on arm64 Status in

[Kernel-packages] [Bug 1806488] Re: Support non-strict iommu mode on arm64

2018-12-18 Thread dann frazier
** Description changed: [Impact] - There's a significant performance gain to be had by removing the need to flush the IOMMU TLB on every unmap. I'm seeing a 25% performance gain w/ fio reads on a single NVMe device. This mode of operation is available for x86 via the "intel_iommu=strict"

[Kernel-packages] [Bug 1806488] Re: Support non-strict iommu mode on arm64

2018-12-14 Thread dann frazier
** Also affects: linux (Ubuntu Bionic) Importance: Undecided Status: New ** Also affects: linux (Ubuntu Disco) Importance: Undecided Assignee: dann frazier (dannf) Status: In Progress ** Also affects: linux (Ubuntu Cosmic) Importance: Undecided Status: New **