[Bug 1795453] Re: IO's are issued with incorrect Scatter Gather Buffer
** Tags added: verification-needed ** Tags added: tpp -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1795453 Title: IO's are issued with incorrect Scatter Gather Buffer To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1795453/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1795453] Re: IO's are issued with incorrect Scatter Gather Buffer
** 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 root=UUID=43e89410-c7ff-11e8-9229-d0946
[Bug 1795453] Re: IO's are issued with incorrect Scatter Gather Buffer
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 Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1795453 Title: IO's are issued with incorrect Scatter Gather Buffer To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1795453/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1795453] Re: IO's are issued with incorrect Scatter Gather Buffer
Broadcom submitted the fix upstream: https://marc.info/?l=linux-scsi&m=154514161019901&w=2 https://marc.info/?l=linux-scsi&m=154514161319908&w=2 https://marc.info/?l=linux-scsi&m=154514161619911&w=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 Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1795453 Title: IO's are issued with incorrect Scatter Gather Buffer To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1795453/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1795453] Re: IO's are issued with incorrect Scatter Gather Buffer
63 bit masking will cause double buffering of data ? -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1795453 Title: IO's are issued with incorrect Scatter Gather Buffer To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1795453/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1795453] Re: IO's are issued with incorrect Scatter Gather Buffer
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 Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1795453 Title: IO's are issued with incorrect Scatter Gather Buffer To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1795453/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1795453] Re: IO's are issued with incorrect Scatter Gather Buffer
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 Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1795453 Title: IO's are issued with incorrect Scatter Gather Buffer To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1795453/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1795453] Re: IO's are issued with incorrect Scatter Gather Buffer
@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 Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1795453 Title: IO's are issued with incorrect Scatter Gather Buffer To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1795453/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1795453] Re: IO's are issued with incorrect Scatter Gather Buffer
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 Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1795453 Title: IO's are issued with incorrect Scatter Gather Buffer To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1795453/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1795453] Re: IO's are issued with incorrect Scatter Gather Buffer
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 Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1795453 Title: IO's are issued with incorrect Scatter Gather Buffer To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1795453/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1795453] Re: IO's are issued with incorrect Scatter Gather Buffer
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 Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1795453 Title: IO's are issued with incorrect Scatter Gather Buffer To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1795453/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1795453] Re: IO's are issued with incorrect Scatter Gather Buffer
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 Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1795453 Title: IO's are issued with incorrect Scatter Gather Buffer To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1795453/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1795453] Re: IO's are issued with incorrect Scatter Gather Buffer
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 Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1795453 Title: IO's are issued with incorrect Scatter Gather Buffer To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1795453/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1795453] Re: IO's are issued with incorrect Scatter Gather Buffer
@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 Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1795453 Title: IO's are issued with incorrect Scatter Gather Buffer To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1795453/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1795453] Re: IO's are issued with incorrect Scatter Gather Buffer
> 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 Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1795453 Title: IO's are issued with incorrect Scatter Gather Buffer To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1795453/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1795453] Re: IO's are issued with incorrect Scatter Gather Buffer
> 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 Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1795453 Title: IO's are issued with incorrect Scatter Gather Buffer To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1795453/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1795453] Re: IO's are issued with incorrect Scatter Gather Buffer
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 Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1795453 Title: IO's are issued with incorrect Scatter Gather Buffer To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1795453/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1795453] Re: IO's are issued with incorrect Scatter Gather Buffer
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 Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1795453 Title: IO's are issued with incorrect Scatter Gather Buffer To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1795453/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1795453] Re: IO's are issued with incorrect Scatter Gather Buffer
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 Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1795453 Title: IO's are issued with incorrect Scatter Gather Buffer To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1795453/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1795453] Re: IO's are issued with incorrect Scatter Gather Buffer
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 Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1795453 Title: IO's are issued with incorrect Scatter Gather Buffer To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1795453/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1795453] Re: IO's are issued with incorrect Scatter Gather Buffer
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 Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1795453 Title: IO's are issued with incorrect Scatter Gather Buffer To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1795453/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1795453] Re: IO's are issued with incorrect Scatter Gather Buffer
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 Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1795453 Title: IO's are issued with incorrect Scatter Gather Buffer To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1795453/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1795453] Re: IO's are issued with incorrect Scatter Gather Buffer
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 Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1795453 Title: IO's are issued with incorrect Scatter Gather Buffer To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1795453/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1795453] Re: IO's are issued with incorrect Scatter Gather Buffer
we are in the process of collecting logs -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1795453 Title: IO's are issued with incorrect Scatter Gather Buffer To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1795453/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1795453] Re: IO's are issued with incorrect Scatter Gather Buffer
Can any of you recreate this using the mainline kernel? https://wiki.ubuntu.com/Kernel/MainlineBuilds that should at least give a point in time where we know either it's not fixed in 4.18 or it IS fixed in 4.18 and the patches would be easier to derive. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1795453 Title: IO's are issued with incorrect Scatter Gather Buffer To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1795453/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1795453] Re: IO's are issued with incorrect Scatter Gather Buffer
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 Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1795453 Title: IO's are issued with incorrect Scatter Gather Buffer To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1795453/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1795453] Re: IO's are issued with incorrect Scatter Gather Buffer
No, we own only the mega raid Linux driver , you may have to reach out to AMD iommu driver team -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1795453 Title: IO's are issued with incorrect Scatter Gather Buffer To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux-signed-hwe/+bug/1795453/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1795453] Re: IO's are issued with incorrect Scatter Gather Buffer
@mreed8855 This issue may be related to the amd_iommu driver. There are patches upstream that are not in the 4.15 kernel. How can we get a list of those patches. Is there an amd_iommu expert out there? -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1795453 Title: IO's are issued with incorrect Scatter Gather Buffer To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux-signed-hwe/+bug/1795453/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1795453] Re: IO's are issued with incorrect Scatter Gather Buffer
Status changed to 'Confirmed' because the bug affects multiple users. ** Changed in: linux-signed-hwe (Ubuntu) Status: New => Confirmed -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1795453 Title: IO's are issued with incorrect Scatter Gather Buffer To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux-signed-hwe/+bug/1795453/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1795453] Re: IO's are issued with incorrect Scatter Gather Buffer
uname -r: 4.15.0-34-generic Driver Version : MEGASAS_VERSION "07.703.05.00" How to recreate the issue : run IO's (SCSI R/W) using vdbench tool on raw Virtual Disks (which is on the Broadcom (LSI) Megaraid H840 controller) -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1795453 Title: IO's are issued with incorrect Scatter Gather Buffer To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux-signed-hwe/+bug/1795453/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1795453] Re: IO's are issued with incorrect Scatter Gather Buffer
Can you provide more information, such as the driver version, uname -a, logs, and how to recreate the issue? -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1795453 Title: IO's are issued with incorrect Scatter Gather Buffer To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux-signed-hwe/+bug/1795453/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
