[Kernel-packages] [Bug 1795453] Re: IO's are issued with incorrect Scatter Gather Buffer

2019-01-11 Thread Michael Reed
** Tags added: verification-needed

** Tags added: tpp

-- 
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:
  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 = f000
  [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=
   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-firmware1.173.1
  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=
   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-firmware1.173.1
  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: 

[Kernel-packages] [Bug 1795453] Re: IO's are issued with incorrect Scatter Gather Buffer

2019-01-11 Thread Michael Reed
** Description changed:

- 
+ [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
+  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)
  
- Here is the data we captured in our driver (Printed the SGE details which was 
sent by OS)
+ sgl_ptr->Address = f000
+ [14547.313240]
+ sgl_ptr->Length = 1000
+ [14547.313241]
+ sge_count = 18
+ [14547.313242]
+ cmd->index = 9d9
  
- sgl_ptr->Address = f000 
- [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
  
  
- Note : This issue is observed only when virtualization is enabled 
+ [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
+  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=
-  LANG=en_US.UTF-8
-  SHELL=/bin/bash
+  TERM=xterm
+  PATH=(custom, no user)
+  XDG_RUNTIME_DIR=
+  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-firmware1.173.1
+  linux-restricted-modules-4.18.0-8-generic N/A
+  linux-backports-modules-4.18.0-8-generic  N/A
+  linux-firmware1.173.1
  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
+  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=
-  LANG=en_US.UTF-8
-  SHELL=/bin/bash
+  TERM=xterm
+  PATH=(custom, no user)
+  XDG_RUNTIME_DIR=
+  LANG=en_US.UTF-8
+  SHELL=/bin/bash
  ProcFB: 0 mgadrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.18.0-8-generic 

[Kernel-packages] [Bug 1795453] Re: IO's are issued with incorrect Scatter Gather Buffer

2019-01-09 Thread Michael Reed
How to Recreate

1.  Install Ubuntu 18.04.01 on a separate storage disk.
2.  Create VDs on H840/H740 using 9 physical disks 
a. 16 sliced RAID5; 10 GB each 
b. 16 sliced RAID1; 10 GB each 
c. 16 sliced RAID6; 10 GB each 
3.  Install JAVA 
4.  Download and copy vdbench to system 
a. 
https://www.oracle.com/technetwork/server-storage/vdbench-downloads-1901681.html
 
b. I used version 5.4.6 but reporter had 5.4.7 
5.  Run vdbench test “./vdbench -t” 
6.  Edit/create vdbench workprofile to match disks on H840 
a. Use lsscsi to show 48 H840/H740 disks 
7.  Run vd bench with profile 
a. ./vdbench -f vdbenchworkloadprofile.txt

-- 
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:
  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 = f000 
  [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=
   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-firmware1.173.1
  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=
   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-firmware1.173.1
  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 

[Kernel-packages] [Bug 1795453] Re: IO's are issued with incorrect Scatter Gather Buffer

2018-12-19 Thread Sujith Pandel
Broadcom submitted the fix upstream:
https://marc.info/?l=linux-scsi=154514161019901=2
https://marc.info/?l=linux-scsi=154514161319908=2
https://marc.info/?l=linux-scsi=154514161619911=2

and the commit IDs of these patches from upstream:

894169db1246 scsi: megaraid_sas: Use 63-bit DMA addressing
7b9e2d348c2a scsi: megaraid_sas: driver version update

Please include them in the Ubuntu 18.04 LTS kernels.

-- 
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:
  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 = f000 
  [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=
   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-firmware1.173.1
  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=
   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-firmware1.173.1
  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: 

[Kernel-packages] [Bug 1795453] Re: IO's are issued with incorrect Scatter Gather Buffer

2018-11-05 Thread Sasikumar
63 bit masking will cause double buffering of data ?

-- 
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:
  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 = f000 
  [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=
   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-firmware1.173.1
  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=
   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-firmware1.173.1
  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 

[Kernel-packages] [Bug 1795453] Re: IO's are issued with incorrect Scatter Gather Buffer

2018-11-01 Thread Sujith Pandel
The 63bit dma_mask was just a test to understand the adress-wraparound by the 
fw. Nothing specific.
PERC didn't go offline. Always ended up with OOM btw.

-- 
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:
  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 = f000 
  [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=
   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-firmware1.173.1
  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=
   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-firmware1.173.1
  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: 

[Kernel-packages] [Bug 1795453] Re: IO's are issued with incorrect Scatter Gather Buffer

2018-10-31 Thread Sasikumar
Just would like to understand more about the system behavior when we
change the DMA Mask from 64 bit to 63 bit

do we expect any double buffering ?

-- 
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:
  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 = f000 
  [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=
   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-firmware1.173.1
  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=
   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-firmware1.173.1
  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
  

[Kernel-packages] [Bug 1795453] Re: IO's are issued with incorrect Scatter Gather Buffer

2018-10-29 Thread Sujith Pandel
@sasikumarpc -
We observed this scenario where the PERC goes offline:
sgl_ptr->Address = f000
sgl_ptr->Length = 1000

We do not see a roll-over here..

Kernel is indicating to read 0x1000 bytes starting from address
0xf000 i.e till 0x which very well aligns
with 64 bit dma_mask being assigned by megaraid_sas driver.

Looks like kernel is working as expected based on the dma_mask set by 
megaraid_sas driver.
Once the 32bit address gets exhausted, the kernel tries to get buffer based on 
64bit dma_mask top-down.

We are suspecting that the PERC firmware might not be able to handle this 
corner case. 
PERC did not go offline by changing the dma_mask to 63, and these initial 
results looks to be supporting this stance on fw.
Can you please check this and revert?

-- 
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:
  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 = f000 
  [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=
   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-firmware1.173.1
  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=
   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-firmware1.173.1
  RfKill: Error: [Errno 2] No such file or directory: 'rfkill': 'rfkill'
  Tags:  bionic 

[Kernel-packages] [Bug 1795453] Re: IO's are issued with incorrect Scatter Gather Buffer

2018-10-22 Thread Sasikumar
Yes , It seems that bug is still not fixed

FYI - We also observed page fault in 4.18 kernel

-- 
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:
  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 = f000 
  [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=
   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-firmware1.173.1
  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=
   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-firmware1.173.1
  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
 

[Kernel-packages] [Bug 1795453] Re: IO's are issued with incorrect Scatter Gather Buffer

2018-10-22 Thread Sujith Pandel
With the 4.18.0-8-generic kernel, I see AMD IOMMU IO_PAGE_FAULTs for invalid 
addresses
AMD-Vi: Event logged [IO_PAGE_FAULT device=e1:00.0 domain=0x 
address=0xfffd14c0 flags=0x0030]

PERC controller is still present btw, but the vdbench stress crashed due
to this page faults.

** Attachment added: "4.18 - amd- iommu - page_faults"
   
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1795453/+attachment/5204196/+files/4.18-stress_fails-page_faults.txt

-- 
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:
  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 = f000 
  [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=
   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-firmware1.173.1
  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=
   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-firmware1.173.1
  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: 

[Kernel-packages] [Bug 1795453] Re: IO's are issued with incorrect Scatter Gather Buffer

2018-10-22 Thread Sujith Pandel
I see the disks going offline during stress in mainline
4.19.0-041900rc7-generic as well.

Although the symptoms look different in 4.15 and 4.18 kernels, I feel
the bug is not fixed; address being accessed is still out-of-range in
this 16GB server.

-- 
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:
  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 = f000 
  [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=
   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-firmware1.173.1
  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=
   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-firmware1.173.1
  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
  

[Kernel-packages] [Bug 1795453] Re: IO's are issued with incorrect Scatter Gather Buffer

2018-10-22 Thread Sujith Pandel
With latest 4.15 LTS kernels, I see the vdbench process crash and the
PERC controller and the related disks go offline..

** Attachment added: "4.15 - vdbench - disks go offline"
   
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1795453/+attachment/5204195/+files/4.15-stress_fails.txt

-- 
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:
  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 = f000 
  [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=
   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-firmware1.173.1
  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=
   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-firmware1.173.1
  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
  

[Kernel-packages] [Bug 1795453] Re: IO's are issued with incorrect Scatter Gather Buffer

2018-10-16 Thread Sasikumar
Yes below 4.18 kernel (which is 4.15) fixes only with increased memory

-- 
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:
  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 = f000 
  [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=
   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-firmware1.173.1
  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=
   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-firmware1.173.1
  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: 

[Kernel-packages] [Bug 1795453] Re: IO's are issued with incorrect Scatter Gather Buffer

2018-10-15 Thread Sujith Pandel
@sasikumarpc - Ok. So when you say below v4.18 kernel fixes it, does it
mean with increased memory or is it with the same setup where the issue
was originally seen?

Issue resolved Kernel Version
-
4.18.0-8-generic

-- 
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:
  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 = f000 
  [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=
   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-firmware1.173.1
  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=
   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-firmware1.173.1
  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: 

[Kernel-packages] [Bug 1795453] Re: IO's are issued with incorrect Scatter Gather Buffer

2018-10-15 Thread Sasikumar
> 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

-- 
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:
  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 = f000 
  [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=
   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-firmware1.173.1
  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=
   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-firmware1.173.1
  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: 

[Kernel-packages] [Bug 1795453] Re: IO's are issued with incorrect Scatter Gather Buffer

2018-10-15 Thread Sasikumar
apport information

** Tags added: apport-collected uec-images

** Description changed:

  
  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 = f000 
  [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=
+  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-firmware1.173.1
+ 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.

** Attachment added: "CRDA.txt"
   https://bugs.launchpad.net/bugs/1795453/+attachment/5201309/+files/CRDA.txt

-- 
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:
  IO's are issued with incorrect Scatter Gather Buffer

Status in linux package in Ubuntu:
  Incomplete

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 = f000 
  [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=
   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   

[Kernel-packages] [Bug 1795453] Re: IO's are issued with incorrect Scatter Gather Buffer

2018-10-15 Thread Sujith Pandel
> 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?

-- 
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:
  IO's are issued with incorrect Scatter Gather Buffer

Status in linux package in Ubuntu:
  Incomplete

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 = f000 
  [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=
   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-firmware1.173.1
  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=
   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-firmware1.173.1
  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
  

[Kernel-packages] [Bug 1795453] Re: IO's are issued with incorrect Scatter Gather Buffer

2018-10-15 Thread Sasikumar
Issue reported Kernel Version
-

4.15.0-34-generic

Issue resolved Kernel Version
-

4.18.0-8-generic
Linux user 4.18.0-8-generic #9~18.04.1-Ubuntu SMP Mon Sep 17 
12:49:27 UTC 2018 x86_64 x86_64 x86_64 GNU/Linux


It looks like we do not have a system with 4.15.0-34-generic kernel
version to upload the log files .

-- 
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:
  IO's are issued with incorrect Scatter Gather Buffer

Status in linux package in Ubuntu:
  Incomplete

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 = f000 
  [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

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


[Kernel-packages] [Bug 1795453] Re: IO's are issued with incorrect Scatter Gather Buffer

2018-10-15 Thread Sujith Pandel
sasikumarpc -
Can you share the specific kernel versions that you are using, where the issue 
is fixed?
Can you also share the logs of pass & failure cases?

-- 
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:
  IO's are issued with incorrect Scatter Gather Buffer

Status in linux package in Ubuntu:
  Incomplete

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 = f000 
  [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

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


[Kernel-packages] [Bug 1795453] Re: IO's are issued with incorrect Scatter Gather Buffer

2018-10-12 Thread Sasikumar
It will be good if you could provide us the exact commit (Patch) which
fixes the issue

-- 
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:
  IO's are issued with incorrect Scatter Gather Buffer

Status in linux package in Ubuntu:
  Incomplete

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 = f000 
  [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

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


[Kernel-packages] [Bug 1795453] Re: IO's are issued with incorrect Scatter Gather Buffer

2018-10-12 Thread Sasikumar
Also another version (other than default version of Ubuntu 18.04.01) of
4.15 kernel fixes the issue

-- 
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:
  IO's are issued with incorrect Scatter Gather Buffer

Status in linux package in Ubuntu:
  Incomplete

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 = f000 
  [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

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


[Kernel-packages] [Bug 1795453] Re: IO's are issued with incorrect Scatter Gather Buffer

2018-10-12 Thread Joseph Salisbury
Could you also test the latest upstream 4.15 stable kernel?  It is available 
from:
http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.15.18/

We should be able to perform a reverse bisect to identify the commits in
4.18 that resolve this bug.


** Changed in: linux (Ubuntu)
   Importance: Undecided => Medium

** Tags added: kernel-da-key

** Tags added: bionic

-- 
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:
  IO's are issued with incorrect Scatter Gather Buffer

Status in linux package in Ubuntu:
  Incomplete

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 = f000 
  [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

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


[Kernel-packages] [Bug 1795453] Re: IO's are issued with incorrect Scatter Gather Buffer

2018-10-12 Thread Sasikumar
Looks like the issue is not seen with 4.18 kernel , please let me know
still Ubuntu requires the log with 4.15 kernel ?

-- 
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:
  IO's are issued with incorrect Scatter Gather Buffer

Status in linux package in Ubuntu:
  Incomplete

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 = f000 
  [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

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


[Kernel-packages] [Bug 1795453] Re: IO's are issued with incorrect Scatter Gather Buffer

2018-10-11 Thread Sasikumar
we are in the process of collecting logs

-- 
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:
  IO's are issued with incorrect Scatter Gather Buffer

Status in linux package in Ubuntu:
  Incomplete

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 = f000 
  [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

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


[Kernel-packages] [Bug 1795453] Re: IO's are issued with incorrect Scatter Gather Buffer

2018-10-10 Thread Jeff Lane
moving to kernel itself rather than the hwe package

** Package changed: linux-signed-hwe (Ubuntu) => linux (Ubuntu)

** Changed in: linux (Ubuntu)
   Status: Confirmed => 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/1795453

Title:
  IO's are issued with incorrect Scatter Gather Buffer

Status in linux package in Ubuntu:
  New

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 = f000 
  [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

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