Hi, I wonder if I'm doing something wrong or using a wrong version: I download a pharo image (spur64) from http://files.pharo.org/get-files/61/pharo64.zip and a 64 bit vm from: get.pharo.org/64/vm61 Then I try to load a git repo like this: ./pharo Pharo.image ../scripts/loadSqueakNOSVM.st where the script just says "Based on the same file from the pharo-vm project" Author useAuthor: 'LoadVMMaker' during: [ Metacello new baseline: #Nopsys; repository: 'github://nopsys/CogNOS/VM-src'; load ]. (Smalltalk saveAs: 'generator') ifFalse: [ Smalltalk snapshot: false andQuit: true ]. and it crashes with the log pasted below. I cannot even load the code, any clue? Cheers, Pocho ---- Fetched -> BaselineOfNopsys-GitHub.1520523060 --- git@github.com:nopsys/CogNOS.git[master] --- /CogNOS/image/pharo-local/iceberg/nopsys/CogNOS/VM-src (Libgit) Loaded -> BaselineOfNopsys-GitHub.1520523060 --- git@github.com:nopsys/CogNOS.git[master] --- /CogNOS/image/pharo-local/iceberg/nopsys/CogNOS/VM-src (Libgit) Loading baseline of BaselineOfNopsys... Fetched -> SqueakNOS-VM-GitHub.1520523060 --- git@github.com:nopsys/CogNOS.git[master] --- /CogNOS/image/pharo-local/iceberg/nopsys/CogNOS/VM-src (Libgit) Fetched -> BaselineOfSpur-EstebanLorenzano.4 --- filetree:///CogNOS/VMMaker/mc [:] --- filetree:///CogNOS/VMMaker/mc Segmentation fault Sat Mar 10 18:36:05 2018 /CogNOS/image/pharo-vm/lib/pharo/5.0-201707201942/pharo Pharo VM version: 5.0-201707201942 Thu Jul 20 20:40:54 UTC 2017 gcc 4.6.3 [Production Spur 64-bit VM] Built from: CoInterpreter VMMaker.oscog-eem.2254 uuid: 4f2c2cce-f4a2-469a-93f1-97ed941df0ad Jul 20 2017 With: StackToRegisterMappingCogit VMMaker.oscog-eem.2252 uuid: 2f3e9b0e-ecd3-4adf-b092-cce2e2587a5c Jul 20 2017 Revision: VM: 201707201942 https://github.com/OpenSmalltalk/opensmalltalk-vm.git $ Date: Thu Jul 20 12:42:21 2017 -0700 $ Plugins: 201707201942 https://github.com/OpenSmalltalk/opensmalltalk-vm.git $ Build host: Linux testing-gce-74d10329-bbfd-42e5-8995-b0e3a68c73cb 3.13.0-115-generic #162~precise1-Ubuntu SMP Fri Mar 24 16:47:06 UTC 2017 x86_64 x86_64 x86_64 GNU/Linux plugin path: /CogNOS/image/pharo-vm/lib/pharo/5.0-201707201942 [default: /CogNOS/image/pharo-vm/lib/pharo/5.0-201707201942/] C stack backtrace & registers: rax 0x0c1c5f40 rbx 0x0c1c5dd0 rcx 0x0c1c5ff8 rdx 0x0c1c5e88 rdi 0x0c1c5ba8 rsi 0x0c1c5ba8 rbp 0x0c1c5d18 rsp 0x0c1c60b0 r8 0x0c1c55e8 r9 0x0c1c56a0 r10 0x0c1c5758 r11 0x0c1c5810 r12 0x0c1c58c8 r13 0x0c1c5980 r14 0x0c1c5a38 r15 0x0c1c5af0 rip 0x0c1c6168 *[0x7ffd0c1c6168] /CogNOS/image/pharo-vm/lib/pharo/5.0-201707201942/pharo[0x41ccd1] /CogNOS/image/pharo-vm/lib/pharo/5.0-201707201942/pharo[0x41d05f] /lib/x86_64-linux-gnu/libpthread.so.0(+0x11670)[0x7f5dc882f670] /CogNOS/image/pharo-vm/lib/pharo/5.0-201707201942/pharo[0x4403cc] /CogNOS/image/pharo-vm/lib/pharo/5.0-201707201942/pharo(ceSendAborttonumArgs+0xd6)[0x45b826] /CogNOS/image/pharo-vm/lib/pharo/5.0-201707201942/pharo[0x45bda3] [0x1501223] [0x7ffdffffffff] Smalltalk stack dump: 0x7ffd0c1cbcc0 M MCWorkingCopy class>ancestorsFromArray:cache: 0x2b4a8a0: a(n) MCWorkingCopy class 0x19abee8 is not a context 0x1a24a80 is not a context 0x19abd78 is not a context 0x1a2c118 is not a context ... -- Javier Pimás Ciudad de Buenos Aires