Vm-dev October 2018

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36 participants
189 discussions

[OpenSmalltalk/opensmalltalk-vm] Update README with load instructions : VMMaker in Squeak (#294)
by hjht 20 Oct '20

20 Oct '20

A user interested in generating VMs for Squeak, Pharo and Cuis needs to know how to load the source code. Add instructions on how to do this in Squeak - VMMaker load instructions. Use release 5.2. -- You are receiving this because you are subscribed to this thread. Reply to this email directly or view it on GitHub: https://github.com/OpenSmalltalk/opensmalltalk-vm/issues/294

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[OpenSmalltalk/opensmalltalk-vm] SSL plugin might fail on Windows 7 (#236)
by CyrilFerlicot 25 Apr '20

25 Apr '20

If I execute this code: ```Smalltalk ZnClient new url: 'https://google.com'; get. ``` I get a result. If I execute this code: ```Smalltalk ZnClient new url: 'https://github.com'; get. ``` I get this error: Error: SSL Exception: connect failed [code:-5] I tried with both stable and latest vm. (The stable is from august 2017 I think) I sent a mail on the Pharo dev ML and we are at least two having this problem with Windows 7 when it's working with Windows 10. Here are the details and the stack: ``` Image ----- E:\Pharo\images\Pharo 7.0 (development version)-22\Pharo 7.0 (development version)-22.image Pharo7.0alpha Build information: Pharo-7.0+alpha.build.749.sha.039a4b6f0d61ba99778349c4cff2c4e8d5ff9227 (32 Bit) Unnamed Virtual Machine --------------- C:\Users\JeCisC\Documents\Pharo\vms\70-x86\Pharo.exe CoInterpreter VMMaker.oscog-eem.2359 uuid: b3273e3e-dd9d-4819-a928-7034e1cf412c Mar 16 2018 StackToRegisterMappingCogit VMMaker.oscog-eem.2359 uuid: b3273e3e-dd9d-4819-a928-7034e1cf412c Mar 16 2018 VM: 201803161038 https://github.com/OpenSmalltalk/opensmalltalk-vm.git $ Date: Fri Mar 16 11:38:09 2018 +0100 $ Plugins: 201803161038 https://github.com/OpenSmalltalk/opensmalltalk-vm.git $ Win32 built on Mar 16 2018 11:02:19 GMT Compiler: 6.4.0 VMMaker versionString VM: 201803161038 https://github.com/OpenSmalltalk/opensmalltalk-vm.git $ Date: Fri Mar 16 11:38:09 2018 +0100 $ Plugins: 201803161038 https://github.com/OpenSmalltalk/opensmalltalk-vm.git $ CoInterpreter VMMaker.oscog-eem.2359 uuid: b3273e3e-dd9d-4819-a928-7034e1cf412c Mar 16 2018 StackToRegisterMappingCogit VMMaker.oscog-eem.2359 uuid: b3273e3e-dd9d-4819-a928-7034e1cf412c Mar 16 2018 Operating System/Hardware ------------------------- Win32 6.1 IX86 Operating System Details ------------------------ Operating System: Windows 7 Professional N (Build 7601 Service Pack 1) SP major version: 1 SP minor version: 0 Suite mask: 100 Product type: 1 ============================================================== ZdcSecureSocketStream(Object)>>error: ZdcSecureSocketStream>>sslException:code: ZdcSecureSocketStream>>connect ZnClient>>setupTLSTo: ZnClient>>newConnectionTo: ZnClient>>getConnectionAndExecute ZnClient>>executeWithRedirectsRemaining: [ self executeWithRedirectsRemaining: self maxNumberOfRedirects ] in ZnClient>>executeWithRetriesRemaining: in Block: [ self executeWithRedirectsRemaining: self maxNumb...etc... BlockClosure>>on:do: ZnClient>>executeWithRetriesRemaining: [ self executeWithRetriesRemaining: self numberOfRetries ] in [ [ self executeWithRetriesRemaining: self numberOfRetries ] on: Error do: self ifFailBlock ] in ZnClient>>executeWithTimeout in Block: [ self executeWithRetriesRemaining: self numberOfR...etc... BlockClosure>>on:do: [ [ self executeWithRetriesRemaining: self numberOfRetries ] on: Error do: self ifFailBlock ] in ZnClient>>executeWithTimeout in Block: [ [ self executeWithRetriesRemaining: self numberO...etc... [ ^ block value ] in ZnClient>>withTimeoutDo: in Block: [ ^ block value ] [ activeProcess psValueAt: index put: anObject. aBlock value ] in ZnConnectionTimeout(DynamicVariable)>>value:during: in Block: [ activeProcess psValueAt: index put: anObject.... BlockClosure>>ensure: ZnConnectionTimeout(DynamicVariable)>>value:during: ZnConnectionTimeout class(DynamicVariable class)>>value:during: ZnClient>>withTimeoutDo: ZnClient>>executeWithTimeout [ result := self executeWithTimeout ] in ZnClient>>execute in Block: [ result := self executeWithTimeout ] [ ^ block value ] in ZnClient>>withProgressDo: in Block: [ ^ block value ] [ activeProcess psValueAt: index put: anObject. aBlock value ] in ZnSignalProgress(DynamicVariable)>>value:during: in Block: [ activeProcess psValueAt: index put: anObject.... BlockClosure>>ensure: ZnSignalProgress(DynamicVariable)>>value:during: ZnSignalProgress class(DynamicVariable class)>>value:during: ZnClient>>withProgressDo: ZnClient>>execute ZnClient>>get UndefinedObject>>DoIt ``` -- You are receiving this because you are subscribed to this thread. Reply to this email directly or view it on GitHub: https://github.com/OpenSmalltalk/opensmalltalk-vm/issues/236

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[OpenSmalltalk/opensmalltalk-vm] VM crashes (#252)
by Fabio Niephaus 25 Apr '20

25 Apr '20

*I have copied the below issue from https://github.com/hpi-swa/smalltalkCI/issues/366.* Hi! Time to time, the Pharo VM crashes, without any apparent reasons. For example, in https://travis-ci.org/ObjectProfile/Roassal2/jobs/365943067 ``` VM: 201708271955 https://github.com/OpenSmalltalk/opensmalltalk-vm.git $ Date: Sun Aug 27 21:55:26 2017 +0200 $ Plugins: 201708271955 https://github.com/OpenSmalltalk/opensmalltalk-vm.git $ C stack backtrace & registers: eax 0x1e750080 ebx 0x00000100 ecx 0x00000020 edx 0x00000002 edi 0x00000020 esi 0x00000020 ebp 0xbff09c58 esp 0xbff09c58 eip 0x000e848d 0 Pharo 0x000e848d fetchByteofObject + 9 1 Pharo 0x00149400 reportStackState + 819 2 Pharo 0x001497a2 sigsegv + 191 3 libsystem_platform.dylib 0xa1742e5b _sigtramp + 43 ``` And a bit below: ``` Smalltalk Smalltalk stack dump: 0xbff11ce8 I SessionManager>snapshot:andQuit: 0x6b496a8: a(n) SessionManager 0xbff11d18 I [] in SmalltalkImage>snapshot:andQuit: 0x5517fa0: a(n) SmalltalkImage 0xbff11d3c I CurrentExecutionEnvironment class>activate:for: 0x5af3520: a(n) CurrentExecutionEnvironment class 0xbff11d64 I DefaultExecutionEnvironment(ExecutionEnvironment)>beActiveDuring: 0x5e2bc70: a(n) DefaultExecutionEnvironment 0xbff11d88 I DefaultExecutionEnvironment class>beActiveDuring: 0x5b1d8a8: a(n) DefaultExecutionEnvironment class 0xbff11dac I SmalltalkImage>snapshot:andQuit: 0x5517fa0: a(n) SmalltalkImage ``` It seems to happens randomly /cc @bergel -- You are receiving this because you are subscribed to this thread. Reply to this email directly or view it on GitHub: https://github.com/OpenSmalltalk/opensmalltalk-vm/issues/252

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[OpenSmalltalk/opensmalltalk-vm] pixman 0.34.0 tests fail entire build on High Sierra (#258)
by Jim Haungs 25 Apr '20

25 Apr '20

A plain ./mvm build on MacOS 10.13.4 (in any of the build.macos64x64/pharo.* directories) fails with this error: > utils-prng.c:207:27: error: use of unknown builtin '__builtin_shuffle' [-Wimplicit-function-declaration] > randdata.vb = __builtin_shuffle (randdata.vb, bswap_shufflemask); > ^ > utils-prng.c:207:25: error: assigning to 'uint8x16' (vector of 16 'uint8_t' values) from incompatible type 'int' > randdata.vb = __builtin_shuffle (randdata.vb, bswap_shufflemask); > ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ > It's trying to build the tests for pixman. There is a patch for this bug here: https://bugs.freedesktop.org/show_bug.cgi?id=104886 But when I apply the patch, the patched utils-prng.c file gets overwritten with the old version by something in the build or configure step, so the patch disappears and the build error returns. -- You are receiving this because you are subscribed to this thread. Reply to this email directly or view it on GitHub: https://github.com/OpenSmalltalk/opensmalltalk-vm/issues/258

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[OpenSmalltalk/opensmalltalk-vm] libgit build fails because of libssl and libcrypto (#210)
by Javier Pimas 03 Dec '19

03 Dec '19

on /build.linux32x86/pharo.cog.spur/build I run ./mvm and get make[3]: *** No rule to make target '/usr/lib/i386-linux-gnu/libssl.so', needed by 'libgit2.so.0.25.1'. Stop. I worked around it by running sudo ln -s /lib/i386-linux-gnu/libssl.so.1.0.0 /usr/lib/i386-linux-gnu/libssl.so but shouldn't be necessary as libssl is downloaded and built by the script. The same happens with libcrypto -- You are receiving this because you are subscribed to this thread. Reply to this email directly or view it on GitHub: https://github.com/OpenSmalltalk/opensmalltalk-vm/issues/210

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[OpenSmalltalk/opensmalltalk-vm] OSVM 201804030952 crashes in Context(Object)>copy (#265)
by Fabio Niephaus 26 Sep '19

26 Sep '19

OSVM `201804030952` sometimes crashes in `Context(Object)>copy` when running Squeak SUnit tests. Full stack trace at: https://travis-ci.org/squeak-smalltalk/squeak-app/jobs/387262157#L2073 Another trace is at: https://travis-ci.org/squeak-smalltalk/squeak-app/jobs/382950107#L1717 -- You are receiving this because you are subscribed to this thread. Reply to this email directly or view it on GitHub: https://github.com/OpenSmalltalk/opensmalltalk-vm/issues/265

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Robust FFI with Memory Protection Keys
by Ben Coman 29 Jun '19

29 Jun '19

A problem with FFI is that if a callout segfaults, all of memory including that of the Image is suspect, and execution of the Image terminates. Occasionally I hunt around hoping to find technology to mitigate that problem. Maybe this time in I found something... Memory Protection Keys [1] Perhaps these could ensure Image memory safe when an FFI callout segfaults. IIUC the main problem with protecting Image memory on every FFI callout is the time it would take update the flags on every page of Image memory. Would being able to change the protection of a massive number of pages with one syscall make it feasible to wrap them around FFI callouts? This may be useful at least where the FFI use is more about reuse of existing functionality than about performance. Or at least useful while someone is learning/experimenting with FFI for the first time or while becoming familiar with some external library. Further info at [2] & [3]. cheers -ben [1] https://lwn.net/Articles/643797/ [2] http://man7.org/linux/man-pages/man7/pkeys.7.html [3] https://lwn.net/Articles/689395/

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Image crashing on startup, apparently during GC
by Damien Pollet 03 Jun '19

03 Jun '19

Hi, I have a Pharo image that crashes the VM on startup. The crash report below seems to incriminate GC. Should I make it available somewhere online? What's most convenient? Process: Pharo [64892] Path: /Users/USER/*/Pharo.app/Contents/MacOS/Pharo Identifier: org.pharo.Pharo Version: 5.0.201708271955 (5.0.201708271955) Code Type: X86-64 (Native) Parent Process: ??? [64888] Responsible: Pharo [64892] User ID: 501 Date/Time: 2018-03-19 20:27:03.906 +0100 OS Version: Mac OS X 10.13.3 (17D102) Report Version: 12 Anonymous UUID: 6D022236-78DD-6676-117F-EADA56D5D1BE Sleep/Wake UUID: AC9E4E55-3CDB-4B4F-A6B4-51ACB1177154 Time Awake Since Boot: 28000 seconds Time Since Wake: 6500 seconds System Integrity Protection: enabled Crashed Thread: 0 Dispatch queue: com.apple.main-thread Exception Type: EXC_BAD_ACCESS (SIGABRT) Exception Codes: KERN_INVALID_ADDRESS at 0x000000012b67c0b0 Exception Note: EXC_CORPSE_NOTIFY VM Regions Near 0x12b67c0b0: VM_ALLOCATE 000000011adfc000-00000001259fc000 [172.0M] rw-/rwx SM=PRV --> STACK GUARD 0000700005613000-0000700005614000 [ 4K] ---/rwx SM=NUL stack guard for thread 1 Application Specific Information: abort() called Thread 0 Crashed:: Dispatch queue: com.apple.main-thread 0 libsystem_kernel.dylib 0x00007fff53fbde3e __pthread_kill + 10 1 libsystem_pthread.dylib 0x00007fff540fc150 pthread_kill + 333 2 libsystem_c.dylib 0x00007fff53f1a312 abort + 127 3 org.pharo.Pharo 0x0000000104ed8997 sigsegv + 190 4 libsystem_platform.dylib 0x00007fff540eff5a _sigtramp + 26 5 ??? 000000000000000000 0 + 0 6 org.pharo.Pharo 0x0000000104e73558 markObjects + 464 7 org.pharo.Pharo 0x0000000104e72d40 fullGC + 72 8 org.pharo.Pharo 0x0000000104e92dea primitiveFullGC + 45 9 org.pharo.Pharo 0x0000000104e52425 interpret + 26715 10 org.pharo.Pharo 0x0000000104e5c7f6 enterSmalltalkExecutiveImplementation + 152 11 org.pharo.Pharo 0x0000000104e4be6c interpret + 674 12 org.pharo.Pharo 0x0000000104ed9cc1 -[sqSqueakMainApplication runSqueak] + 394 13 com.apple.Foundation 0x00007fff2e6d696c __NSFirePerformWithOrder + 360 14 com.apple.CoreFoundation 0x00007fff2c579127 __CFRUNLOOP_IS_CALLING_OUT_TO_AN_OBSERVER_CALLBACK_FUNCTION__ + 23 15 com.apple.CoreFoundation 0x00007fff2c57904f __CFRunLoopDoObservers + 527 16 com.apple.CoreFoundation 0x00007fff2c55b6a8 __CFRunLoopRun + 1240 17 com.apple.CoreFoundation 0x00007fff2c55af43 CFRunLoopRunSpecific + 483 18 com.apple.HIToolbox 0x00007fff2b872e26 RunCurrentEventLoopInMode + 286 19 com.apple.HIToolbox 0x00007fff2b872a9f ReceiveNextEventCommon + 366 20 com.apple.HIToolbox 0x00007fff2b872914 _BlockUntilNextEventMatchingListInModeWithFilter + 64 21 com.apple.AppKit 0x00007fff29b3df5f _DPSNextEvent + 2085 22 com.apple.AppKit 0x00007fff2a2d3b4c -[NSApplication(NSEvent) _nextEventMatchingEventMask:untilDate:inMode:dequeue:] + 3044 23 com.apple.AppKit 0x00007fff29b32d6d -[NSApplication run] + 764 24 com.apple.AppKit 0x00007fff29b01f1a NSApplicationMain + 804 -- Damien Pollet type less, do more [ | ] http://people.untyped.org/damien.pollet

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[OpenSmalltalk/opensmalltalk-vm] Second attempt to improve updateSCCSVersions (#227)
by Jakob Reschke 29 Dec '18

29 Dec '18

I finally got around to solve the "not a git repository" issue with my previous pull request. For the analysis see below. Please review and try it out before merging. When the script is run as a hook, the environment variable `GIT_DIR` is set to `.git` (path relative to the working tree) for regular repositories. This affects the behavior of `rev-parse`. When the script is run from the working tree and the checkout commands towards the bottom are executed, the script actually invokes itself as the post-checkout script. During that inner invocation, the script would `cd` to `.git/hooks`, and because of the GIT_DIR variable, `rev-parse` would then look for the git repository in `.git/hooks/.git`. This failed, of course. The second error message "unrecognized input" came from `git apply` when it was fed with empty input (because there were no uncommitted changes to either *Version.h file). Since GIT_DIR caused the trouble, why not use it to detect whether the script is run as a hook... You can view, comment on, or merge this pull request online at: https://github.com/OpenSmalltalk/opensmalltalk-vm/pull/227 -- Commit Summary -- * Second attempt to improve updateSCCSVersions * Eschew --git-path because it was only added in Git 2.5 * Properly handle staged changes to the version headers * whitespace -- File Changes -- M scripts/updateSCCSVersions (40) -- Patch Links -- https://github.com/OpenSmalltalk/opensmalltalk-vm/pull/227.patch https://github.com/OpenSmalltalk/opensmalltalk-vm/pull/227.diff -- You are receiving this because you are subscribed to this thread. Reply to this email directly or view it on GitHub: https://github.com/OpenSmalltalk/opensmalltalk-vm/pull/227

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[OpenSmalltalk/opensmalltalk-vm] Make updateSCCSVersions work in more situations (#213)
by Jakob Reschke 29 Dec '18

29 Dec '18

- allow spaces in paths (added quotes) - support cases where the repository is not in a .git directory at the top of the working tree - do not hardcode the directory level of this script - avoid stashing the whole working tree when only two well-known files need to be updated - touch should suffice to make a file different from its index version (i. e., eligible for checkout) Please review for compatibility and pick those parts of the changes that you like. You can view, comment on, or merge this pull request online at: https://github.com/OpenSmalltalk/opensmalltalk-vm/pull/213 -- Commit Summary -- * make updateSCCSVersions work in more situations -- File Changes -- M scripts/updateSCCSVersions (26) -- Patch Links -- https://github.com/OpenSmalltalk/opensmalltalk-vm/pull/213.patch https://github.com/OpenSmalltalk/opensmalltalk-vm/pull/213.diff -- You are receiving this because you are subscribed to this thread. Reply to this email directly or view it on GitHub: https://github.com/OpenSmalltalk/opensmalltalk-vm/pull/213

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Vm-dev October 2018