Hi,
I just had one worker instance of VMware Workstation crash and die on me. This happened somehow on reboot of my Ubuntu 64bit guest VM immediately after that guest system was updated through the Ubuntu updater (did not watch this happening, so unsure about causality).
Excerpt from the log is below; I have
* Ubuntu 64-bit.vmx - customized manually to have "cpuid.1.ecx = ----:----:--0-:----:----:----:----:----" as a workaround for an issue reported earlier
* vmware.log (all 550 KB)
* vmware-vmx-debug.dmp (110 MB)
available for uploading.
For the moment, I will not touch this VM.
Just let me know when / where you are ready to receive (what).
Host is Windows 8.1 with 16 GB of memory; in addition to the VM that died, I also had a "Windows 7 Enterprise 64 bit" guest VM running in parallel (doing nothing - I hope).
Good luck 
2014-08-04T14:25:22.919+02:00| vcpu-0| I120: backtrace[00] frame 0x07917588 IP 0x7ff80a7b35e0 params 0x7ff800000002 0 0x7a0 0 mxdMessage + 0x0900 [C:\Windows\SYSTEM32\wdmaud.drv base 0x7ff80a7b0000 0x0001:0x000025e0]
2014-08-04T14:25:22.919+02:00| vcpu-0| I120: backtrace[01] frame 0x07917680 IP 0x7ff80a7bb107 params 0xc 0x7ff600000000 0x8c96200 0 midMessage + 0x2d07 [C:\Windows\SYSTEM32\wdmaud.drv base 0x7ff80a7b0000 0x0001:0x0000a107]
2014-08-04T14:25:22.922+02:00| vcpu-0| I120: backtrace[02] frame 0x07917688 IP 0x7ff81a3f98b2 params 0x7ff600000000 0x8c96200 0 0x30 winmmbaseSetWOWHandle + 0x01d6 [C:\Windows\SYSTEM32\WINMMBASE.dll base 0x7ff81a3e0000 0x0001:0x000188b2]
2014-08-04T14:25:22.922+02:00| vcpu-0| I120: backtrace[03] frame 0x079176f0 IP 0x7ff81a3f9a77 params 0x8c77b20 0x30 0x1 0 waveInAddBuffer + 0x0077 [C:\Windows\SYSTEM32\WINMMBASE.dll base 0x7ff81a3e0000 0x0001:0x00018a77]
2014-08-04T14:25:22.922+02:00| vcpu-0| I120: backtrace[04] frame 0x079176f8 IP 0x7ff80c3f2a9a params 0x30 0x1 0 0x1 ??? [C:\Windows\SYSTEM32\msacm32.drv base 0x7ff80c3f0000 0x0001:0x00001a9a]
2014-08-04T14:25:22.922+02:00| vcpu-0| I120: backtrace[05] frame 0x07917780 IP 0x7ff80c3f39db params 0x8bb6c80 0x30 0x8c95f90 0 widMessage + 0x018f [C:\Windows\SYSTEM32\msacm32.drv base 0x7ff80c3f0000 0x0001:0x000029db]
2014-08-04T14:25:22.922+02:00| vcpu-0| I120: backtrace[06] frame 0x079177c0 IP 0x7ff81a3f98b2 params 0xb2120f0 0x44ff890 0x30 0x8bb6c80 winmmbaseSetWOWHandle + 0x01d6 [C:\Windows\SYSTEM32\WINMMBASE.dll base 0x7ff81a3e0000 0x0001:0x000188b2]
2014-08-04T14:25:22.922+02:00| vcpu-0| I120: backtrace[07] frame 0x079177f0 IP 0x7ff81a3f9a77 params 0x3d57ea0 0 0 0 waveInAddBuffer + 0x0077 [C:\Windows\SYSTEM32\WINMMBASE.dll base 0x7ff81a3e0000 0x0001:0x00018a77]
2014-08-04T14:25:22.922+02:00| vcpu-0| I120: backtrace[08] frame 0x079177f8 IP 0x7ff6af638631 params 0 0 0 0 opus_decoder_destroy + 0x4e0d21 [C:\Program Files (x86)\VMware\VMware Workstation\x64\vmware-vmx-debug.exe base 0x7ff6aefd0000 0x0001:0x00667631]
2014-08-04T14:25:22.925+02:00| vcpu-0| I120: backtrace[09] frame 0x079179d0 IP 0x7ff6af4b6b72 params 0x44ff970 0x4 0x7917a70 0x1 opus_decoder_destroy + 0x35f262 [C:\Program Files (x86)\VMware\VMware Workstation\x64\vmware-vmx-debug.exe base 0x7ff6aefd0000 0x0001:0x004e5b72]
2014-08-04T14:25:22.925+02:00| vcpu-0| I120: backtrace[10] frame 0x07917a10 IP 0x7ff6af4b7360 params 0 0x7917a70 0x4 0x1 opus_decoder_destroy + 0x35fa50 [C:\Program Files (x86)\VMware\VMware Workstation\x64\vmware-vmx-debug.exe base 0x7ff6aefd0000 0x0001:0x004e6360]
2014-08-04T14:25:22.925+02:00| vcpu-0| I120: backtrace[11] frame 0x0791faa0 IP 0x7ff6af783f06 params 0x149 0x7ff6afc91b00 0x3c7d300 0x2a1aec0 opus_repacketizer_get_nb_frames + 0xd5356 [C:\Program Files (x86)\VMware\VMware Workstation\x64\vmware-vmx-debug.exe base 0x7ff6aefd0000 0x0001:0x007b2f06]
2014-08-04T14:25:22.925+02:00| vcpu-0| I120: backtrace[12] frame 0x0791fae0 IP 0x7ff6af750b84 params 0x149 0x2022302d00000149 0x206469200000044e 0xa0000044e opus_repacketizer_get_nb_frames + 0xa1fd4 [C:\Program Files (x86)\VMware\VMware Workstation\x64\vmware-vmx-debug.exe base 0x7ff6aefd0000 0x0001:0x0077fb84]
2014-08-04T14:25:22.925+02:00| vcpu-0| I120: backtrace[13] frame 0x0791fb20 IP 0x7ff6af7a030a params 0x1e0 0 0 0x7ff6afe8daa0 opus_repacketizer_get_nb_frames + 0xf175a [C:\Program Files (x86)\VMware\VMware Workstation\x64\vmware-vmx-debug.exe base 0x7ff6aefd0000 0x0001:0x007cf30a]
2014-08-04T14:25:22.925+02:00| vcpu-0| I120: backtrace[14] frame 0x0791fca0 IP 0x7ff6af7513cc params 0x7ff6af8e8d38 0x7ff6af89d16c 0x4 0x7ff6afe8dc88 opus_repacketizer_get_nb_frames + 0xa281c [C:\Program Files (x86)\VMware\VMware Workstation\x64\vmware-vmx-debug.exe base 0x7ff6aefd0000 0x0001:0x007803cc]
2014-08-04T14:25:22.927+02:00| vcpu-0| I120: backtrace[15] frame 0x0791fd00 IP 0x7ff6af1c8874 params 0 0 0 0 opus_decoder_destroy + 0x70f64 [C:\Program Files (x86)\VMware\VMware Workstation\x64\vmware-vmx-debug.exe base 0x7ff6aefd0000 0x0001:0x001f7874]
2014-08-04T14:25:22.927+02:00| vcpu-0| I120: backtrace[16] frame 0x0791fd08 IP 0x7ff824e816ad params 0 0 0 0 BaseThreadInitThunk + 0x000d [C:\Windows\system32\KERNEL32.DLL base 0x7ff824e80000 0x0001:0x000006ad]
2014-08-04T14:25:22.930+02:00| vcpu-0| I120: backtrace[17] frame 0x0791fd38 IP 0x7ff8251434a5 params 0 0 0 0 RtlUserThreadStart + 0x001d [C:\Windows\SYSTEM32\ntdll.dll base 0x7ff8250d0000 0x0001:0x000724a5]
2014-08-04T14:25:22.930+02:00| vcpu-0| I120: Msg_Post: Error
2014-08-04T14:25:22.930+02:00| vcpu-0| I120: [msg.log.error.unrecoverable] VMware Workstation unrecoverable error: (vcpu-0)
2014-08-04T14:25:22.930+02:00| vcpu-0| I120+ Exception 0xc0000005 (access violation) has occurred.
2014-08-04T14:25:22.930+02:00| vcpu-0| I120: [msg.panic.haveLog] A log file is available in "xxxxxxxxxxxxxxxxxxxxxxxxUbuntu 64-bit\vmware.log".
2014-08-04T14:25:22.930+02:00| vcpu-0| I120: [msg.panic.requestSupport.withoutLog] You can request support.
2014-08-04T14:25:22.930+02:00| vcpu-0| I120: [msg.panic.requestSupport.vmSupport.windowsOrLinux]
2014-08-04T14:25:22.930+02:00| vcpu-0| I120+ To collect data to submit to VMware support, choose "Collect Support Data" from the Help menu.
2014-08-04T14:25:22.930+02:00| vcpu-0| I120+ You can also run the "vm-support" script in the Workstation folder directly.
2014-08-04T14:25:22.930+02:00| vcpu-0| I120: [msg.panic.response] We will respond on the basis of your support entitlement.
2014-08-04T14:25:22.930+02:00| vcpu-0| I120: ----------------------------------------