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Re: Issue in Workstation 12.5.5 Linux vmnet module

May 15, 2017, 6:48 pm
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Hi, dariusd!

 

Nice to hear that this is going to be fixed soon.

 

I'm current using Arch Linux, kernel 4.10.13, running patched modules (https://aur.archlinux.org/cgit/aur.git/tree/?h=vmware-modules-dkms) which seems unrelated to this issue however.

 

I have taken a picture and have kept the kernel module which produced the 'stack overflow'. And here's a piece of disassembly:

 

0000000000004390 <VNetBridgeNotify>:

    4390: e8 00 00 00 00       callq  4395 <VNetBridgeNotify+0x5>

    4395: 55                   push   %rbp

    4396: 48 89 e5             mov    %rsp,%rbp

    4399: 41 54                 push   %r12

    439b: 53                   push   %rbx

    439c: 48 89 fb             mov    %rdi,%rbx

    439f: 48 83 ec 08           sub    $0x8,%rsp

    43a3: 48 83 fe 02           cmp    $0x2,%rsi

    43a7: 0f 84 bf 00 00 00     je     446c <VNetBridgeNotify+0xdc>

    43ad: 48 83 fe 06           cmp    $0x6,%rsi

    43b1: 0f 84 8c 00 00 00     je     4443 <VNetBridgeNotify+0xb3>

    43b7: 48 83 fe 01           cmp    $0x1,%rsi

    43bb: 74 0b                 je     43c8 <VNetBridgeNotify+0x38>

    43bd: 48 83 c4 08           add    $0x8,%rsp

    43c1: 31 c0                 xor    %eax,%eax

    43c3: 5b                   pop    %rbx

    43c4: 41 5c                 pop    %r12

    43c6: 5d                   pop    %rbp

    43c7: c3                   retq  

    43c8: 48 83 7f 28 00       cmpq   $0x0,0x28(%rdi)

    43cd: 75 ee                 jne    43bd <VNetBridgeNotify+0x2d>

    43cf: 48 81 ba 00 05 00 00 cmpq   $0x0,0x500(%rdx)

    43d6: 00 00 00 00

    43da: 75 e1                 jne    43bd <VNetBridgeNotify+0x2d>

    43dc: 4c 8d 67 18           lea    0x18(%rdi),%r12

    43e0: 48 89 d7             mov    %rdx,%rdi

    43e3: 48 89 55 e8           mov    %rdx,-0x18(%rbp)

    43e7: 4c 89 e6             mov    %r12,%rsi

    43ea: e8 00 00 00 00       callq  43ef <VNetBridgeNotify+0x5f>

Which convinces me that the invalid access into the *data causes this issue.

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Re: Workstation 12.5.5 patches for kernel 4.8.x?

May 15, 2017, 6:54 pm
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Ah, there's the problem...  We've moved those modules into the Linux kernel, so you should build your host Gentoo kernel with vmw_vmci and vsock modules enabled.  We still distribute sources for the vmci/vsock drivers within the Workstation bundle, but they are only supposed to be used if you are running on an old kernel that doesn't include the upstreamed drivers.  The only drivers that should need to be built on your host are vmmon and vmnet, and the versions of those included with WS 12.5.5 should build cleanly on 4.8.x.

 

Give it a go using the host's vmw_vmci and vsock modules, and you should have much more luck.

 

Cheers,

--

Darius

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Re: Workstation 12.5.5 patches for kernel 4.8.x?

May 15, 2017, 7:34 pm
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That does help a lot. Thank you for the heads up. I take back all my complaints!

 

One suggestion though, it would have been nice if the installer recognized a kernel version with those files in it and popped up a message saying they were there rather than trying to build them itself. They are quite well buried in there too.

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Re: RHWS7 firewalld vs iptables

May 15, 2017, 7:46 pm
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Thanks for sharing the tip.

 

We will take a look and enhance the installer.

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Cleaning up vmdk files

May 15, 2017, 8:10 pm
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Hi,

 

I have an Ubuntu 14.04 LTS guest OS VM running on a Windows 10 host. The guest VM only has 64GB hard disk space, but its VM folder in the host OS is over 100GB. Is there any way I can clean up files to recover disk space?

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Re: Issue in Workstation 12.5.5 Linux vmnet module

May 15, 2017, 8:15 pm
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Ahhhhh yes, that'd do it!  Not really a stack overflow in the most common/traditional sense (e.g. too many function calls or stack frames too large) but instead it's a wild pointer dereference that's "too far" past the current stack pointer and causes a page fault.  I agree that your patch will take care of it.

 

Thanks for the awesome help, swordfeng.  We greatly appreciate it!

 

Cheers,

--

Darius

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Re: .vmem files thrashing my HDD?

May 15, 2017, 8:16 pm
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Sorry, you should expect that from a person who's on the internet 24/7. Anyway, in other words, how to I prevent the memory from swapping to the .vmem file?

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Re: Slow Win10 performance on OSX 10.11 Fusion 8

May 15, 2017, 8:26 pm
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A Macbook air is probably underpowered to run a Windows 10 VM, particularly if you haven't disabled things like windows update running automatically in the background (that sucker pegs CPU's on my MBP).   I can sort of run one (if little else runs on the host) win10 VM on my 2013 13" (8GB dual core), when it handled Windows 7 just fine.  That's not a Fusion issue, it's just that win10 puts a much heavier load on the CPU than 7.  VMWare can't work magic on outdated hardware, and unfortunately, Apple hasn't produced a meaningful MBP or Air upgrade since 2013 - performance has essentially been flat since then, so it's all out of date.  Rumors are for a 'performance' focused model this fall, so we might finally catch up to the premium price with at least decent performance, but right now Apple's price/performance curve is way way out of whack - both on the CPU and on the GPU (the latter is particularly poor).

 

Boot camp is better, but Win10 still runs much slower than Win7 on identical hardware.  Hopefully the rumored 'performance' upgrades from Apple due this fall actually give us modern performance instead of ultra thin machines with gimmicky touchbars and worse battery life, but we'll have to wait and see.

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Re: Slow Win10 performance on OSX 10.11 Fusion 8

May 15, 2017, 8:15 pm
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4 cores is too many on a MBP - you're likely starving the host for cycles.  Any individual VM should have no more than N-1 physical cores allocated to it.  Try dropping to 2 and see if that helps.

 

Also, is this is converted physical machine or a clean build?  If the former, try the latter.  Converted machines always result in bloated, buggy, unstable VM's.

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Re: Cleaning up vmdk files

May 15, 2017, 8:26 pm
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Clone a VM into Datastore Cluster and host cluster using Workflows in vRealize Orchestrator

May 15, 2017, 8:03 pm
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Hi there,

 

I'm new to vRA and vRO world.

i am trying to clone a virtual machine and using Clone Virtual machine, no customization workflow which was provided by VMware in Library/Clone.

 

i want it to clone the Virtual machine on datastore cluster and host cluster instead of giving inputs of Host system and Datastore.

 

Is there any way to do that ?

 

Any idea would be really appreciated

 

Thanks a lot in advance

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Re: Cleaning up vmdk files

May 15, 2017, 8:39 pm
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Thanks. I just tried that and got a few GB back, but the folder is still close to 100GB.

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Re: How to correctly use VimPortType for vCenter server VMODL API communication

May 15, 2017, 8:51 pm
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This API belongs to the vSphere Management SDK, not the Web Client SDK per so, but those are valid questions that we are interested in documenting better for plugin developers. It will take some research to get the correct information, thanks.

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Re: what does means OSI 25 in license description

May 16, 2017, 10:32 am
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The steps to configure ESXi to send logs to Log Insight (or any syslog destination) are described here - https://kb.vmware.com/selfservice/microsites/search.do?language=en_US&cmd=displayKC&externalId=2003322

Configuring syslog on ESXi (2003322) | VMware KB

 

Basically you need to run this command on each ESXi host - To configure remote syslog using TCP on port 514: esxcli system syslog config set --loghost='tcp://10.11.12.13:514'

 

Where 10.11.12.13 is the IP of your log insight instance.

 

Thanks.

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Re: Running VCheck accross mutiple vcs provides get-html error

May 16, 2017, 10:31 am
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hi lucd yes i have but still the error comes do i need to change anything in style.ps1

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Re: Disable auto-suspend on shutdown

May 16, 2017, 10:32 am
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I'm curious to know, if you don't want (auto-)suspend the running guest(s) when the host is being shut down, what you want to happen to the running guest(s).  Are you implying you want to manually suspend the running guest(s)?

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Re: VMware Security Hardening Guides

May 16, 2017, 10:32 am
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While I like the info provided, I would test in dev to make sure that nothing breaks.

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Re: VMWare ESXi 6.0 Domain Integration - SMB1 Disabled on AD side through GPO, ESXi Domain Join Fails - How to force VMWare ESXi to use SMB2.0 +

May 16, 2017, 10:33 am
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Out of the box, vCSA and ESXi only support SMB 1.0.  I don't know about 5.5, but in atleast 6.0 (and 6.5) the vCSA and ESXi use the **likewise** package to handle active directory communication.  VMware's KB2134063 still only shows the fix as enabling SMBv1 on the domain controllers. This is Wrong! We can just enable likewise to use SMB2!

on the vCSA:

Check Values:

    /opt/likewise/bin/lwregshell list_values '[HKEY_THIS_MACHINE\Services\lwio\Parameters\Drivers\rdr]'

Change SMB2 to be Enabled:

    /opt/likewise/bin/lwregshell set_value '[HKEY_THIS_MACHINE\Services\lwio\Parameters\Drivers\rdr]' Smb2Enabled 1

Restart lwio:

    /opt/likewise/bin/lwsm restart lwio

on ESXi, the process is the same, but the path to the likewise binaries are in */usr/lib/vmware/likewise/bin/*:

Check Values:

    /usr/lib/vmware/likewise/bin/lwregshell list_values '[HKEY_THIS_MACHINE\Services\lwio\Parameters\Drivers\rdr]'

Change SMB2 to be Enabled:

    /usr/lib/vmware/likewise/bin/lwregshell set_value '[HKEY_THIS_MACHINE\Services\lwio\Parameters\Drivers\rdr]' SMB2Enabled 1

Restart lwio:

    /usr/lib/vmware/likewise/bin/lwsm restart lwio

 

Screenshot of running these on an ESXi 6.5 host:
[SMB2 Enabled on ESXi 6.5](http://i.imgur.com/wdEr1QJ.png)

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Re: ESXi 6.5 - How to make second Port Group available to add to Virtual Machine Network Adapter?

May 16, 2017, 10:33 am
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I think other users who answered you didn't tried the 6.5 html client

 

There is a bug clearly that blocks you from selecting a portgroup on the edit VM settings, it only shows one portgroup.

 

Also can't rename default portgroups but it's minor

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Re: Timeout issue during Create file from Resource

May 16, 2017, 10:35 am
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Port 902 is used for console access (which you are not doing).  Port 443 is used to communicate with the host API (which you are doing).  The file is transferred to the host and the host gives it to the Guest OS via VMTools (aka: via the virtual mother board).

 

FYI, commands, being a small piece of data, actually go via vCenter but file transfers (which could be large) go directly to the host.

 

Carl L.

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