I built test kernels for bionic and cosmic with the fix applied. Please can you test it and check if the problem is solved?
You can download the debian packages from: https://kernel.ubuntu.com/~mhcerri/lp1795453/bionic/ https://kernel.ubuntu.com/~mhcerri/lp1795453/cosmic/ ** Patch added: "0001-scsi-megaraid_sas-Use-63-bit-DMA-addressing.patch" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1795453/+attachment/5230041/+files/0001-scsi-megaraid_sas-Use-63-bit-DMA-addressing.patch -- 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/1795453 Title: [SRU] IO's are issued with incorrect Scatter Gather Buffer Status in linux package in Ubuntu: Confirmed Bug description: [Impact] We have observed that OS is sending the IO's (SCSI Read/Write) with incorrect Scatter Gather Buffer address . i.e OS is sending the IO with 64 bit Scatter Gather Buffer address , such that if we add the length with buffer address then it causes the roll over . Here is the data we captured in our driver (Printed the SGE details which was sent by OS) sgl_ptr->Address = fffffffffffff000 [14547.313240] sgl_ptr->Length = 1000 [14547.313241] sge_count = 18 [14547.313242] cmd->index = 9d9 Note : This issue is observed only when virtualization is enabled Product : Broadcom (LSI) Megaraid H840 controller [Test Case] Steps found in comment #60 https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1795453/comments/60 [Regression Potential] The patches in Comment #59 have been accepted upstream. https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1795453/comments/59 [Other Info] Product : Broadcom (LSI) Megaraid H840 controller --- ProblemType: Bug AlsaDevices: total 0 crw-rw----+ 1 root audio 116, 1 Oct 12 16:35 seq crw-rw----+ 1 root audio 116, 33 Oct 12 16:35 timer AplayDevices: Error: [Errno 2] No such file or directory: 'aplay': 'aplay' ApportVersion: 2.20.9-0ubuntu7.4 Architecture: amd64 ArecordDevices: Error: [Errno 2] No such file or directory: 'arecord': 'arecord' AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1: DistroRelease: Ubuntu 18.04 IwConfig: Error: [Errno 2] No such file or directory: 'iwconfig': 'iwconfig' MachineType: Dell Inc. PowerEdge R7415 Package: linux (not installed) PciMultimedia: ProcEnviron: TERM=xterm PATH=(custom, no user) XDG_RUNTIME_DIR=<set> LANG=en_US.UTF-8 SHELL=/bin/bash ProcFB: 0 mgadrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.18.0-8-generic root=UUID=43e89410-c7ff-11e8-9229-d094661013d8 ro ProcVersionSignature: Ubuntu 4.18.0-8.9~18.04.1-generic 4.18.7 RelatedPackageVersions: linux-restricted-modules-4.18.0-8-generic N/A linux-backports-modules-4.18.0-8-generic N/A linux-firmware 1.173.1 RfKill: Error: [Errno 2] No such file or directory: 'rfkill': 'rfkill' Tags: bionic uec-images Uname: Linux 4.18.0-8-generic x86_64 UpgradeStatus: No upgrade log present (probably fresh install) UserGroups: adm cdrom dip lxd plugdev sudo _MarkForUpload: True dmi.bios.date: 09/07/2018 dmi.bios.vendor: Dell Inc. dmi.bios.version: 1.6.2 dmi.board.vendor: Dell Inc. dmi.chassis.type: 23 dmi.chassis.vendor: Dell Inc. dmi.modalias: dmi:bvnDellInc.:bvr1.6.2:bd09/07/2018:svnDellInc.:pnPowerEdgeR7415:pvr:rvnDellInc.:rn:rvr:cvnDellInc.:ct23:cvr: dmi.product.family: PowerEdge dmi.product.name: PowerEdge R7415 dmi.product.sku: SKU=NotProvided;ModelName=PowerEdge R7415 dmi.sys.vendor: Dell Inc. --- ProblemType: Bug AlsaDevices: total 0 crw-rw----+ 1 root audio 116, 1 Oct 12 16:35 seq crw-rw----+ 1 root audio 116, 33 Oct 12 16:35 timer AplayDevices: Error: [Errno 2] No such file or directory: 'aplay': 'aplay' ApportVersion: 2.20.9-0ubuntu7.4 Architecture: amd64 ArecordDevices: Error: [Errno 2] No such file or directory: 'arecord': 'arecord' AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1: DistroRelease: Ubuntu 18.04 IwConfig: Error: [Errno 2] No such file or directory: 'iwconfig': 'iwconfig' MachineType: Dell Inc. PowerEdge R7415 Package: linux (not installed) PciMultimedia: ProcEnviron: TERM=xterm PATH=(custom, no user) XDG_RUNTIME_DIR=<set> LANG=en_US.UTF-8 SHELL=/bin/bash ProcFB: 0 mgadrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.18.0-8-generic root=UUID=43e89410-c7ff-11e8-9229-d094661013d8 ro ProcVersionSignature: Ubuntu 4.18.0-8.9~18.04.1-generic 4.18.7 RelatedPackageVersions: linux-restricted-modules-4.18.0-8-generic N/A linux-backports-modules-4.18.0-8-generic N/A linux-firmware 1.173.1 RfKill: Error: [Errno 2] No such file or directory: 'rfkill': 'rfkill' Tags: bionic uec-images Uname: Linux 4.18.0-8-generic x86_64 UpgradeStatus: No upgrade log present (probably fresh install) UserGroups: adm cdrom dip lxd plugdev sudo _MarkForUpload: True dmi.bios.date: 09/07/2018 dmi.bios.vendor: Dell Inc. dmi.bios.version: 1.6.2 dmi.board.vendor: Dell Inc. dmi.chassis.type: 23 dmi.chassis.vendor: Dell Inc. dmi.modalias: dmi:bvnDellInc.:bvr1.6.2:bd09/07/2018:svnDellInc.:pnPowerEdgeR7415:pvr:rvnDellInc.:rn:rvr:cvnDellInc.:ct23:cvr: dmi.product.family: PowerEdge dmi.product.name: PowerEdge R7415 dmi.product.sku: SKU=NotProvided;ModelName=PowerEdge R7415 dmi.sys.vendor: Dell Inc. --- ProblemType: Bug ApportVersion: 2.20.9-0ubuntu7.4 Architecture: amd64 AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1: DistroRelease: Ubuntu 18.04 InstallationDate: Installed on 2018-09-20 (25 days ago) InstallationMedia: Ubuntu-Server 18.04 LTS "Bionic Beaver" - Release amd64 (20180426) IwConfig: lo no wireless extensions. eno2 no wireless extensions. eno1 no wireless extensions. MachineType: Dell Inc. PowerEdge R7415 Package: linux (not installed) ProcEnviron: TERM=xterm PATH=(custom, no user) XDG_RUNTIME_DIR=<set> LANG=en_US.UTF-8 SHELL=/bin/bash ProcFB: 0 mgadrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.15.0-36-generic root=UUID=0fdc9101-73c3-4eec-9136-4384e760b449 ro ProcVersionSignature: Ubuntu 4.15.0-36.39-generic 4.15.18 PulseList: Error: command ['pacmd', 'list'] failed with exit code 1: No PulseAudio daemon running, or not running as session daemon. RelatedPackageVersions: linux-restricted-modules-4.15.0-36-generic N/A linux-backports-modules-4.15.0-36-generic N/A linux-firmware 1.173.1 RfKill: Tags: bionic Uname: Linux 4.15.0-36-generic x86_64 UpgradeStatus: No upgrade log present (probably fresh install) UserGroups: _MarkForUpload: True dmi.bios.date: 09/07/2018 dmi.bios.vendor: Dell Inc. dmi.bios.version: 1.6.2 dmi.board.name: 065PKD dmi.board.vendor: Dell Inc. dmi.board.version: A00 dmi.chassis.type: 23 dmi.chassis.vendor: Dell Inc. dmi.modalias: dmi:bvnDellInc.:bvr1.6.2:bd09/07/2018:svnDellInc.:pnPowerEdgeR7415:pvr:rvnDellInc.:rn065PKD:rvrA00:cvnDellInc.:ct23:cvr: dmi.product.family: PowerEdge dmi.product.name: PowerEdge R7415 dmi.sys.vendor: Dell Inc. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1795453/+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
