> Also another version (other than default version of Ubuntu 18.04.01)
of 4.15 kernel fixes the issue
Can you share this kernel version as well?
Actually adding additional memory to the system which has
4.15.0-34-generic kernel fixes the issue , not the different version of
4.15 kernel fixes the issue , it is my bad on the misunderstanding
** Changed in: linux (Ubuntu)
Status: Incomplete => Confirmed
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https://bugs.launchpad.net/bugs/1795453
Title:
IO's are issued with incorrect Scatter Gather Buffer
Status in linux package in Ubuntu:
Confirmed
Bug description:
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
---
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.
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