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`2 raisedTo: 100000000` crashes VM

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fniephaus
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`2 raisedTo: 100000000` crashes VM

fniephaus
 
Hi all,

We just found out that the VM crashes when trying to build very large integers.
I'm not sure what could cause the problem...

Best,
Fabio
Bert Freudenberg
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Re: `2 raisedTo: 100000000` crashes VM

Bert Freudenberg
 
On 01.06.2016, at 13:27, Fabio Niephaus <[hidden email]> wrote:
>
> Hi all,
>
> We just found out that the VM crashes when trying to build very large integers.
> I'm not sure what could cause the problem...

Maybe largeIntgrowTo doesn’t check the size?

Thread 0 Crashed:: Dispatch queue: com.apple.main-thread
0   libsystem_kernel.dylib         0x9b5fa572 __pthread_kill + 10
1   libsystem_pthread.dylib       0x91403654 pthread_kill + 101
2   libsystem_c.dylib             0x93dddc34 abort + 156
3   org.squeak.Squeak$(VM_MONIKER) 0x00139db9 sigsegv + 175
4   libsystem_platform.dylib       0x9e4bd79b _sigtramp + 43
5   ???                           0xffffffff 0 + 4294967295
6   org.squeak.Squeak$(VM_MONIKER) 0x00139d0a getCrashDumpFilenameInto + 82
7   org.squeak.Squeak$(VM_MONIKER) 0x00177262 largeIntgrowTo + 107
8   org.squeak.Squeak$(VM_MONIKER) 0x001771f1 normalizePositive + 190
9   org.squeak.Squeak$(VM_MONIKER) 0x0017678c primDigitMultiplyNegative + 597
10  ???                           0x04cb4cc8 0 + 80432328
11  org.squeak.Squeak$(VM_MONIKER) 0x000c203a interpret + 741


- Bert -




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Bert Freudenberg
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Re: 2 raisedTo: 100000000` crashes VM

Bert Freudenberg
 

> On 01.06.2016, at 13:43, Bert Freudenberg <[hidden email]> wrote:
>
> On 01.06.2016, at 13:27, Fabio Niephaus <[hidden email]> wrote:
>>
>> Hi all,
>>
>> We just found out that the VM crashes when trying to build very large integers.
>> I'm not sure what could cause the problem...
>
> Maybe largeIntgrowTo doesn’t check the size?
>
> Thread 0 Crashed:: Dispatch queue: com.apple.main-thread
> 0   libsystem_kernel.dylib         0x9b5fa572 __pthread_kill + 10
> 1   libsystem_pthread.dylib       0x91403654 pthread_kill + 101
> 2   libsystem_c.dylib             0x93dddc34 abort + 156
> 3   org.squeak.Squeak$(VM_MONIKER) 0x00139db9 sigsegv + 175
> 4   libsystem_platform.dylib       0x9e4bd79b _sigtramp + 43
> 5   ???                           0xffffffff 0 + 4294967295
> 6   org.squeak.Squeak$(VM_MONIKER) 0x00139d0a getCrashDumpFilenameInto + 82
> 7   org.squeak.Squeak$(VM_MONIKER) 0x00177262 largeIntgrowTo + 107
> 8   org.squeak.Squeak$(VM_MONIKER) 0x001771f1 normalizePositive + 190
> 9   org.squeak.Squeak$(VM_MONIKER) 0x0017678c primDigitMultiplyNegative + 597
> 10  ???                           0x04cb4cc8 0 + 80432328
> 11  org.squeak.Squeak$(VM_MONIKER) 0x000c203a interpret + 741
>
>
> - Bert -

Btw it worked fine in the interpreter and Cog.

- Bert -




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Eliot Miranda-2
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Re: [squeak-dev] Re: 2 raisedTo: 100000000` crashes VM

Eliot Miranda-2
 


On Wed, Jun 1, 2016 at 5:29 AM, Bert Freudenberg <[hidden email]> wrote:

> On 01.06.2016, at 13:43, Bert Freudenberg <[hidden email]> wrote:
>
> On 01.06.2016, at 13:27, Fabio Niephaus <[hidden email]> wrote:
>>
>> Hi all,
>>
>> We just found out that the VM crashes when trying to build very large integers.
>> I'm not sure what could cause the problem...
>
> Maybe largeIntgrowTo doesn’t check the size?
>
> Thread 0 Crashed:: Dispatch queue: com.apple.main-thread
> 0   libsystem_kernel.dylib            0x9b5fa572 __pthread_kill + 10
> 1   libsystem_pthread.dylib           0x91403654 pthread_kill + 101
> 2   libsystem_c.dylib                 0x93dddc34 abort + 156
> 3   org.squeak.Squeak$(VM_MONIKER)    0x00139db9 sigsegv + 175
> 4   libsystem_platform.dylib          0x9e4bd79b _sigtramp + 43
> 5   ???                               0xffffffff 0 + 4294967295
> 6   org.squeak.Squeak$(VM_MONIKER)    0x00139d0a getCrashDumpFilenameInto + 82
> 7   org.squeak.Squeak$(VM_MONIKER)    0x00177262 largeIntgrowTo + 107
> 8   org.squeak.Squeak$(VM_MONIKER)    0x001771f1 normalizePositive + 190
> 9   org.squeak.Squeak$(VM_MONIKER)    0x0017678c primDigitMultiplyNegative + 597
> 10  ???                               0x04cb4cc8 0 + 80432328
> 11  org.squeak.Squeak$(VM_MONIKER)    0x000c203a interpret + 741
>
>
> - Bert -


Btw it worked fine in the interpreter and Cog.

So which VM does it fail on?
 

- Bert -









--
_,,,^..^,,,_
best, Eliot
Bert Freudenberg
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Re: [squeak-dev] 2 raisedTo: 100000000` crashes VM

Bert Freudenberg
 
On 01.06.2016, at 19:45, Eliot Miranda <[hidden email]> wrote:
> (2 raisedTo: 100000000) basicSize
> So which VM does it fail on?

Mac Spur 5.0.3692

- Bert -




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Eliot Miranda-2
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Re: [squeak-dev] 2 raisedTo: 100000000` crashes VM

Eliot Miranda-2
 
Thanks all,

On Wed, Jun 1, 2016 at 1:48 PM, Bert Freudenberg <[hidden email]> wrote:
On 01.06.2016, at 19:45, Eliot Miranda <[hidden email]> wrote:
> (2 raisedTo: 100000000) basicSize
> So which VM does it fail on?

Mac Spur 5.0.3692

- Bert -

OK, tis fixed in VMMaker.oscog-eem.1879.

Reporting - 774 tallies, 6,836 msec.

**Tree**
...
[100 (6,836)  [] SmalltalkEditor(TextEditor) evaluateSelectionAndDo:
[  100 (6,836)  Compiler evaluate:in:to:notifying:ifFail:logged:
[    100 (6,836)  Compiler evaluateCue:ifFail:logged:
[      100 (6,836)  Compiler evaluateCue:ifFail:
[        100 (6,836)  UndefinedObject DoIt
[          100 (6,836)  AndreasSystemProfiler class spyOn:
[            100 (6,836)  BlockClosure ensure:
[              100 (6,836)  [] AndreasSystemProfiler class spyOn:
[                100 (6,836)  AndreasSystemProfiler spyOn:
[                  100 (6,836)  BlockClosure ensure:
[                    100 (6,836)  [] UndefinedObject DoIt
[                      100 (6,836)  SmallInteger(Integer) timesRepeat:
[                        100 (6,836)  [[]] UndefinedObject DoIt
[                          100 (6,836)  SmallInteger(Number) raisedTo:
[                            100 (6,836)  SmallInteger(Number) raisedToInteger:
[                              98.45 (6,730)  LargePositiveInteger *
[                                98.44 (6,730)  LargePositiveInteger(Integer) *
[                                  98.44 (6,730)  LargePositiveInteger(Integer) digitMultiply:neg:
[                                    50.36 (3,442)  SmalltalkImage primitiveGarbageCollect
[                                    28.3 (1,935)  LargePositiveInteger normalize
[                                      28.3 (1,935)  LargePositiveInteger(Integer) growto:
[                                        28.26 (1,932)  LargePositiveInteger(Integer) copyto:
[                                          28.26 (1,932)  SmalltalkImage primitiveGarbageCollect
**Leaves**
78.61 (5,374)  SmalltalkImage primitiveGarbageCollect

**Memory**
old -16,777,216 bytes
young +15,421,544 bytes
used -1,355,672 bytes
free -15,421,544 bytes

**GCs**
full 14 totalling 5,279ms (77.0% uptime), avg 377.0ms
incr 1 totalling 0ms (0.0% uptime), avg 0.0ms
tenures 0
root table 0 overflows

**Processes**
Total process switches: 1596
Without Profiler: 48
Stack page overflows: 4567
Stack page divorces: 15
 



--
_,,,^..^,,,_
best, Eliot
fniephaus
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Re: [squeak-dev] 2 raisedTo: 100000000` crashes VM

fniephaus
 
Thanks, Eliot!

On Thu, Jun 2, 2016 at 3:19 AM Eliot Miranda <[hidden email]> wrote:
Thanks all,

On Wed, Jun 1, 2016 at 1:48 PM, Bert Freudenberg <[hidden email]> wrote:
On 01.06.2016, at 19:45, Eliot Miranda <[hidden email]> wrote:
> (2 raisedTo: 100000000) basicSize
> So which VM does it fail on?

Mac Spur 5.0.3692

- Bert -

OK, tis fixed in VMMaker.oscog-eem.1879.

Reporting - 774 tallies, 6,836 msec.

**Tree**
...
[100 (6,836)  [] SmalltalkEditor(TextEditor) evaluateSelectionAndDo:
[  100 (6,836)  Compiler evaluate:in:to:notifying:ifFail:logged:
[    100 (6,836)  Compiler evaluateCue:ifFail:logged:
[      100 (6,836)  Compiler evaluateCue:ifFail:
[        100 (6,836)  UndefinedObject DoIt
[          100 (6,836)  AndreasSystemProfiler class spyOn:
[            100 (6,836)  BlockClosure ensure:
[              100 (6,836)  [] AndreasSystemProfiler class spyOn:
[                100 (6,836)  AndreasSystemProfiler spyOn:
[                  100 (6,836)  BlockClosure ensure:
[                    100 (6,836)  [] UndefinedObject DoIt
[                      100 (6,836)  SmallInteger(Integer) timesRepeat:
[                        100 (6,836)  [[]] UndefinedObject DoIt
[                          100 (6,836)  SmallInteger(Number) raisedTo:
[                            100 (6,836)  SmallInteger(Number) raisedToInteger:
[                              98.45 (6,730)  LargePositiveInteger *
[                                98.44 (6,730)  LargePositiveInteger(Integer) *
[                                  98.44 (6,730)  LargePositiveInteger(Integer) digitMultiply:neg:
[                                    50.36 (3,442)  SmalltalkImage primitiveGarbageCollect
[                                    28.3 (1,935)  LargePositiveInteger normalize
[                                      28.3 (1,935)  LargePositiveInteger(Integer) growto:
[                                        28.26 (1,932)  LargePositiveInteger(Integer) copyto:
[                                          28.26 (1,932)  SmalltalkImage primitiveGarbageCollect
**Leaves**
78.61 (5,374)  SmalltalkImage primitiveGarbageCollect

**Memory**
old -16,777,216 bytes
young +15,421,544 bytes
used -1,355,672 bytes
free -15,421,544 bytes

**GCs**
full 14 totalling 5,279ms (77.0% uptime), avg 377.0ms
incr 1 totalling 0ms (0.0% uptime), avg 0.0ms
tenures 0
root table 0 overflows

**Processes**
Total process switches: 1596
Without Profiler: 48
Stack page overflows: 4567
Stack page divorces: 15
 



--
_,,,^..^,,,_
best, Eliot
Bert Freudenberg
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Re: 2 raisedTo: 100000000` crashes VM

Bert Freudenberg
In reply to this post by Eliot Miranda-2
 
On 02.06.2016, at 03:19, Eliot Miranda <[hidden email]> wrote:
> OK, tis fixed in VMMaker.oscog-eem.1879.
>
> Reporting - 774 tallies, 6,836 msec.

Nice!

Is this finally a benchmark where SqueakJS can beat other VMs?

[10 timesRepeat: [(2 raisedTo: 100000000) basicSize]] timeToRun

Interp: 18042 ms
Cog: 7965 ms
Spur: ?
SqueakJS: 2821 ms (*)

:D

- Bert -

(*) http://bertfreudenberg.github.io/SqueakJS/run/#url=http://freudenbergs.de/bert/squeakjs&files=[Squeak4.5-13680.image,Squeak4.5-13680.changes,SqueakV41.sources]


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fniephaus
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Re: [squeak-dev] Re: 2 raisedTo: 100000000` crashes VM

fniephaus
 
On my machine:

SqueakJS:  2832ms
RSqueak: 2523ms (*)

(*) using fallback Smalltalk code for large integer; https://www.hpi.uni-potsdam.de/hirschfeld/artefacts/rsqueak/bundle/RSqueak.zip


Maybe the JITs realize that the result of "2 raisedTo: ...." is not being used and omit the calculation?

--

On Thu, Jun 2, 2016 at 12:24 PM Bert Freudenberg <[hidden email]> wrote:
On 02.06.2016, at 03:19, Eliot Miranda <[hidden email]> wrote:
> OK, tis fixed in VMMaker.oscog-eem.1879.
>
> Reporting - 774 tallies, 6,836 msec.

Nice!

Is this finally a benchmark where SqueakJS can beat other VMs?

[10 timesRepeat: [(2 raisedTo: 100000000) basicSize]] timeToRun

Interp: 18042 ms
Cog: 7965 ms
Spur: ?
SqueakJS: 2821 ms (*)

:D

- Bert -

(*) http://bertfreudenberg.github.io/SqueakJS/run/#url=http://freudenbergs.de/bert/squeakjs&files=[Squeak4.5-13680.image,Squeak4.5-13680.changes,SqueakV41.sources]
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