Can't REboot with Samsung EVO 860

myndex

macrumors newbie
Original poster
Sep 28, 2007
19
0
From the standard hard disk I can start, restart, and shutdown with no issues.

From the new Samsung EVO 860 I can start and shutdown, but I can NOT restart. It freezes with a black screen. If I remove and replace power, it will restart. Or I have to hold the power button till it shuts. The watchdog timer does NOT force a restart (I let machine sit in that state for over an hour, nada).

This is a new, fresh install on older hardware (MacPro 1,1) which has been upgraded to 8 cores with X5355.

I've done the kext mod to enable TRIM on the Samsung EVO 860, but the problem exists with or without that mod. Otherwise a virgin install.

I have (of course) reset SMC, zapped NVRAM/PRAM, including replacing the PRAM battery, run fsck in single user mode, Forced safe mode (boot-args -x) etc etc.

There seems to be something about that SSD that prevents a hot restart. But after searching for days, I cannot find what it might be that I might be able to patch.

FWIW, I put a Samsung EVO 860 in my MacBook (MacBookPro9,2) a few months ago, and have had no problems, which is why I bought the EVO for this server.

Any thoughts???

Thank you!!



System and OS info:

Model Name: Mac Pro
Model Identifier: MacPro1,1
Processor Speed: 2.66 GHz
Number Of Processors: 2
Total Number Of Cores: 8
L2 Cache (per processor): 8 MB
(upgraded to Intel(R) Xeon(R) CPU X5355 @ 2.66GHz )
Memory: 16 GB
Bus Speed: 1.33 GHz
Boot ROM Version: MP11.005C.B08
SMC Version (system): 1.7f10

System Version: Mac OS X Server 10.6.8 (10K549)
Server Configuration: Advanced
Kernel Version: Darwin 10.8.0
Boot Volume: ServerSSD
Boot Mode: Normal
Secure Virtual Memory: Not Enabled
64-bit Kernel and Extensions: No
Time since boot: 40 minutes

Samsung SSD 860 EVO 500GB:
Capacity: 500.11 GB (500,107,862,016 bytes)
Model: Samsung SSD 860 EVO 500GB
Revision: RVT01B6Q
Native Command Queuing: Yes
Queue Depth: 32
Removable Media: No
Detachable Drive: No
BSD Name: disk0
Medium Type: Solid State
TRIM Support: Yes
Bay Name: Bay 1
Partition Map Type: GPT (GUID Partition Table)
S.M.A.R.T. status: Verified

Volumes:
Capacity: 209.7 MB (209,715,200 bytes)
Writable: Yes
BSD Name: disk0s1

ServerSSD:
Capacity: 499.76 GB (499,763,888,128 bytes)
Available: 474.16 GB (474,157,363,200 bytes)
Writable: Yes
File System: Journaled HFS+
BSD Name: disk0s2
Mount Point: /


The last items in the logs:

Last few lines of Launchctl LOG looks normal:
Code:
 2045937     1 com.apple.launchd                            0 com.apple.fseventsd                      Removed
 2045940     1 com.apple.launchd                            1 com.apple.launchd                        System: No submanagers left.
 2045942     1 com.apple.launchd                            1 com.apple.launchd                        System: Done with the HopefullyExitsLast bucket, advancing.
 2045944     1 com.apple.launchd                            1 com.apple.launchd                        System: Removing.
 2046653     1 com.apple.launchd                            1 com.apple.launchd                        System: Removing job manager.
 2046655     1 com.apple.launchd                            1 0x100404e30.anonymous.launchd            Reaping
 2046662     1 com.apple.launchd                            0 0x100404e30.anonymous.launchd            Total rusage: utime 0.000000 stime 0.000000 maxrss 0 ixrss 0 idrss 0 isrss 0 minflt 0 majflt 0 nswap 0 inblock 0 oublock 0 msgsnd 0 msgrcv 0 nsignals 0 nvcsw 0 nivcsw 0
 2046666     1 com.apple.launchd                            0 0x100404e30.anonymous.launchd            Removed
 2046721     1 com.apple.launchd                            1 com.apple.launchd                        VM statistics (now - orig): Free: 269210 Active: -291934 Inactive: 32018 Reactivations: 0 PageIns: 35 PageOuts: 0 Faults: 101072 COW-Faults: 39688 Purgeable: -5532 Purges: 0
 2046734     1 com.apple.launchd                            1 com.apple.launchd                        System: About to call: reboot(RB_AUTOBOOT).
Kernel Log

Code:
Sep  4 03:23:43 MainServer kernel[0]: systemShutdown true
Sep  4 03:23:43 MainServer kernel[0]: systemShutdown true
Sep  4 03:23:43 MainServer kernel[0]: Kext loading now disabled.
Sep  4 03:23:43 MainServer kernel[0]: Kext unloading now disabled.
Sep  4 03:23:43 MainServer kernel[0]: Kext autounloading now disabled.
Sep  4 03:23:43 MainServer kernel[0]: Kernel requests now disabled.
 
Last edited:

LightBulbFun

macrumors 68020
Nov 17, 2013
2,127
1,941
London UK
try flashing your MacPro1,1 to MacPro2,1 so your CPUs are properly recognised and initialised then report back if the issue does or does not continue :)
 

myndex

macrumors newbie
Original poster
Sep 28, 2007
19
0
try flashing your MacPro1,1 to MacPro2,1 so your CPUs are properly recognised and initialised then report back if the issue does or does not continue :)
Good thought, I didn't realize there was an upgrade flasher available - nevertheless, it did not solve the problem.

I flashed and am now a 2,1 at firmware MP21.007F.B06

I'm thinking this is more of a compatibility issue with the SMC.
SMC Version (system): 1.7f10


ALSO: When trying to zap pram just now holding CMD OPT P R the system would not go into the second gong.

TO ME this means the issue is not a shut down issue but a WARM START issue, where something is failing after power is applied and before the EFI runs or completes.


It freezes BEFORE the empty grey screen.

 

bsbeamer

macrumors 68020
Sep 19, 2012
2,390
1,110
Someone in another forum mentioned the EVO 860s may use a new firmware/controller that is causing issues with some older machines since people with older PCs are also running into a few issues with the 860's that they did not experience with 840's and 850's.

Believe the 850's were Samsung Dual Core MGX controllers. The 860's are Samsung MJX controllers with 64-Layer V-NAND.

The 860's are now made in China vs. Korea for previous versions. Doubt that is the cause, but there's absolutely been a manufacturing change.

Does not look like there are any EVO 860 firmware updates available yet, but keep an eye on that:
https://www.samsung.com/semiconductor/minisite/ssd/download/tools/
 

bsbeamer

macrumors 68020
Sep 19, 2012
2,390
1,110
I can 100% confirm Samsung models (840's and 850's) MZ-75E1T0B/AM, MZ-75E1T0B/AM, MZ-7TE1T0BW, and MZ-7TD500KW all work fine with macOS as boot drive and have been used at one point since around the 10.8 days. Have used 860's in 5,1 but not as a boot drive.

Samsung SSDs have always "worked" with macOS, just not natively. They required reformatting for usage and TRIM was up to the user until a few OS versions back. Anything with newer controllers or firmware than the OS "could" create an issue, but if you reformat the entire drive (not just remove a partition) it should not be an issue.
 
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crjackson2134

macrumors 601
Mar 6, 2013
4,486
1,618
Charlotte, NC
I can 100% confirm Samsung models (840's and 850's) MZ-75E1T0B/AM, MZ-75E1T0B/AM, MZ-7TE1T0BW, and MZ-7TD500KW all work fine with macOS as boot drive and have been used at one point since around the 10.8 days. Have used 860's in 5,1 but not as a boot drive.

Samsung SSDs have always "worked" with macOS, just not natively. They required reformatting for usage and TRIM was up to the user until a few OS versions back. Anything with newer controllers or firmware than the OS "could" create an issue, but if you reformat the entire drive (not just remove a partition) it should not be an issue.
I have an 860 of that model booting Mojave right now. Prior to that I was booting both Sierra and High Sierra. Never an issue at all.
 
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5050

macrumors regular
May 28, 2009
172
2
Ever resolve not being able to reboot? This drive is on sale now and would like to use as a system disk for my macpro2,1.

Thanks!

From the standard hard disk I can start, restart, and shutdown with no issues.

From the new Samsung EVO 860 I can start and shutdown, but I can NOT restart. It freezes with a black screen. If I remove and replace power, it will restart. Or I have to hold the power button till it shuts. The watchdog timer does NOT force a restart (I let machine sit in that state for over an hour, nada).

This is a new, fresh install on older hardware (MacPro 1,1) which has been upgraded to 8 cores with X5355.

I've done the kext mod to enable TRIM on the Samsung EVO 860, but the problem exists with or without that mod. Otherwise a virgin install.

I have (of course) reset SMC, zapped NVRAM/PRAM, including replacing the PRAM battery, run fsck in single user mode, Forced safe mode (boot-args -x) etc etc.

There seems to be something about that SSD that prevents a hot restart. But after searching for days, I cannot find what it might be that I might be able to patch.

FWIW, I put a Samsung EVO 860 in my MacBook (MacBookPro9,2) a few months ago, and have had no problems, which is why I bought the EVO for this server.

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