PCI passthrough of LSI card fails

[Jason]

Using ESXi version 6. With an Ubuntu 14.04 guest, passthrough works fine. With Ubuntu 15.10, the card is passed through but boot is slow and there are time outs reporting in logs. Disk devices do not show up in guest OS. This can also be seen during a fresh install/live CD boot of Ubuntu 15.10 vs 14.04.

ProblemType: Bug
DistroRelease: Ubuntu 15.10
Package: linux-image-4.2.0-22-generic 4.2.0-22.27
ProcVersionSignature: Ubuntu 4.2.0-22.27-generic 4.2.6
Uname: Linux 4.2.0-22-generic x86_64
ApportVersion: 2.19.1-0ubuntu5
Architecture: amd64
AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1:
CurrentDesktop: Unity
Date: Wed Dec 23 08:08:00 2015
HibernationDevice: RESUME=UUID=248cfbbc-0996-420e-a7f8-48d7ec14f334
InstallationDate: Installed on 2015-12-22 (0 days ago)
InstallationMedia: Ubuntu 15.10 "Wily Werewolf" - Release amd64 (20151021)
IwConfig:
 eno16780032 no wireless extensions.

 lo no wireless extensions.
Lsusb: Error: command ['lsusb'] failed with exit code 1: unable to initialize libusb: -99
MachineType: VMware, Inc. VMware Virtual Platform
ProcFB: 0 svgadrmfb
ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-4.2.0-22-generic root=/dev/mapper/ubuntu--vg-root ro quiet splash
RelatedPackageVersions:
 linux-restricted-modules-4.2.0-22-generic N/A
 linux-backports-modules-4.2.0-22-generic N/A
 linux-firmware 1.149.3
RfKill:

SourcePackage: linux
UdevLog: Error: [Errno 2] No such file or directory: '/var/log/udev'
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 09/30/2014
dmi.bios.vendor: Phoenix Technologies LTD
dmi.bios.version: 6.00
dmi.board.name: 440BX Desktop Reference Platform
dmi.board.vendor: Intel Corporation
dmi.board.version: None
dmi.chassis.asset.tag: No Asset Tag
dmi.chassis.type: 1
dmi.chassis.vendor: No Enclosure
dmi.chassis.version: N/A
dmi.modalias: dmi:bvnPhoenixTechnologiesLTD:bvr6.00:bd09/30/2014:svnVMware,Inc.:pnVMwareVirtualPlatform:pvrNone:rvnIntelCorporation:rn440BXDesktopReferencePlatform:rvrNone:cvnNoEnclosure:ct1:cvrN/A:
dmi.product.name: VMware Virtual Platform
dmi.product.version: None
dmi.sys.vendor: VMware, Inc.

[Brad Figg (brad-figg)]

This change was made by a bot.

[Jason (jleotaylor)]

52f518a3a7c2f80551a38d38be28bc9f335e713c is the first bad commit
commit 52f518a3a7c2f80551a38d38be28bc9f335e713c
Author: Jiang Liu <email address hidden>
Date: Mon Apr 13 14:11:35 2015 +0800

    x86/MSI: Use hierarchical irqdomains to manage MSI interrupts

    Enhance MSI code to support hierarchical irqdomains, it helps to make
    the architecture more clear.

    Signed-off-by: Jiang Liu <email address hidden>
    Cc: Konrad Rzeszutek Wilk <email address hidden>
    Cc: David Cohen <email address hidden>
    Cc: Sander Eikelenboom <email address hidden>
    Cc: David Vrabel <email address hidden>
    Cc: Tony Luck <email address hidden>
    Cc: Greg Kroah-Hartman <email address hidden>
    Cc: <email address hidden>
    Cc: Joerg Roedel <email address hidden>
    Cc: Bjorn Helgaas <email address hidden>
    Cc: Benjamin Herrenschmidt <email address hidden>
    Cc: Rafael J. Wysocki <email address hidden>
    Cc: Randy Dunlap <email address hidden>
    Cc: Yinghai Lu <email address hidden>
    Cc: Borislav Petkov <email address hidden>
    Cc: Dimitri Sivanich <email address hidden>
    Cc: Joerg Roedel <[e-mail]>
    Link: http://<email address hidden>
    Signed-off-by: Thomas Gleixner <email address hidden>

:040000 040000 786bcad9a3fad413e0b744e2cfa20da7ff402db6 22618cac66dee85a7752bb3af81169fff3a242d8 M arch
:040000 040000 acee54015803d4cd52d582a9e5e93aa56ad08482 40d2c7a02c0f8677e596c98c936404b2211336a3 M drivers

[penalvch (penalvch)]

Jason, thank you for reporting this and helping make Ubuntu better.

At your earliest convenience, could you please test the latest upstream kernel available from the very top line at the top of the page from http://kernel.ubuntu.com/~kernel-ppa/mainline/?C=N;O=D (the release names are irrelevant for testing, and please do not test the daily folder)? Install instructions are available at https://wiki.ubuntu.com/Kernel/MainlineBuilds . This will allow additional upstream developers to examine the issue.

If testing on your main install would be inconvenient, one may:
1) Install Ubuntu to a different partition and then test this there.
2) Backup, or clone the primary install.

If the latest kernel did not allow you to test to the issue (ex. you couldn't boot into the OS) please make a comment in your report about this, and continue to test the next most recent kernel version until you can test to the issue. Once you've tested the upstream kernel, please comment on which kernel version specifically you tested. If this issue is fixed in the mainline kernel, please add the following tags by clicking on the yellow circle with a black pencil icon, next to the word Tags, located at the bottom of the report description:
kernel-fixed-upstream
kernel-fixed-upstream-X.Y-rcZ

Where X, and Y are the first two numbers of the kernel version, and Z is the release candidate number if it exists.

If the mainline kernel does not fix the issue, please add the following tags:
kernel-bug-exists-upstream
kernel-bug-exists-upstream-X.Y-rcZ

Please note, an error to install the kernel does not fit the criteria of kernel-bug-exists-upstream.

Once testing of the latest upstream kernel is complete, please mark this report's Status as Confirmed. Please let us know your results.

Thank you for your understanding.

[Jason (jleotaylor)]

Tested with kernel 4.4rc7 and bug still exists.