Kernel Panic Booting Yosemite

Question

Hi all!
My first KP since Yosemite!
Tonight, I had to restart my mid 2010 MacBook pro (I noticed some slowness in the past hours) and, while booting back, I got a Kernel Panic. Too good I had the verbose mode on, so I could catch part of the unix subsystem messages, saying something like this (I took a picture!):
AppleIntelCPUPowerManagementClient: ready
Waiting on <dict ID="0"> IOProviderClass <c/key><string ID="1">IOResources </string>
BTCOEXIST off
BRCM tunables:
   pullmode [1] txringsize[ 256] txsendqsize[1024] reapmin[  32] reapcount[ 128]
USBMSC Identifier (non-unique): 000000009833 0x5ac 0x8403 0x9833, 2
After that, the system stops for about 30 sec, and then KP!
I'm not sure, but I think it's Bluetooth related, but I don't even use BT, it was completely disabled in my system.
Fortunately, I reinstalled Yosemite from my external USB pendrive, and, 20 mn later, I was back to work, with all my docs, my user configs... Yes!
I don't want this to happen again, so is there any clue on this issue? Do the verbose unix messages make any sense?
Vic
Mid 2010 MacBook Pro, 4 GB RAM, 128 GB Samsung 830 SSD (boot drive), internal 320 GB HDD, Yosemite 10.10

Answer 1

I have been using Mac for 23 years, I din't start using Macs last week. I am an bio engineer
In that case you should already be aware that third party and unsupported hardware modifications are a common cause of kernel panics, and that your Samsung SSD is a likely cause. The fact the KP occurs even in Safe Mode supports that suspicion.
You can either remove the unsupported hardware modifications, pay Apple to do that for you, or revert to a version of OS X compatible with your customized hardware.
Apple may refuse to service modified hardware, but you could ask.