Hi All,
I've been seeing random crashes with the VM having the new compactor. It takes anywhere between 5 mintues to a few hours for the crash to happen. The crash dumps didn't seem to contain relevant information and sometimes had no C call stack at all. So I decided to run the VM with gdb to catch the bug, and got the following:
Program received signal SIGSEGV, Segmentation fault. lookupOrdinaryNoMNUEtcInClass (class=0) at /home/travis/build/OpenSmalltalk/opensmalltalk-vm/spur64src/vm/gcc3x-cointerp.c:68119 68119 /home/travis/build/OpenSmalltalk/opensmalltalk-vm/spur64src/vm/gcc3x-cointerp.c: No such file or directory. (gdb) bt #0 lookupOrdinaryNoMNUEtcInClass (class=0) at /home/travis/build/OpenSmalltalk/opensmalltalk-vm/spur64src/vm/gcc3x-cointerp.c:68119 #1 0x000000000043fd97 in lookupOrdinaryreceiver (selector=21887312, rcvr=<optimized out>) at /home/travis/build/OpenSmalltalk/opensmalltalk-vm/spur64src/vm/gcc3x-cointerp.c:19195 #2 0x000000000048f128 in ceSICMiss (receiver=14637768) at /home/travis/build/OpenSmalltalk/opensmalltalk-vm/spur64src/vm/cogitX64.c:3232 #3 0x0000000000900461 in ?? () #4 0x00007ffffff98c51 in ?? () #5 0x000000000045af68 in interpret () at /home/travis/build/OpenSmalltalk/opensmalltalk-vm/spur64src/vm/gcc3x-cointerp.c:2650 #6 0x0000000000901010 in ?? () #7 0x0000000000df5ac8 in ?? () #8 0x0000000000df5780 in ?? () #9 0x0000000000df6da8 in ?? () #10 0x0000000000df6fe8 in ?? () #11 0x0000000000000000 in ?? () (gdb) info registers rax 0x0 0 rbx 0x2e78e0 3045600 rcx 0x0 0 rdx 0x12e78e0 19822816 rsi 0x2e78e0 3045600 rdi 0x0 0 rbp 0x14df950 0x14df950 rsp 0x7ffffff98b60 0x7ffffff98b60 r8 0xffffffffffffffff -1 r9 0x2 2 r10 0x7ffffffaac00 140737488006144 r11 0xa087df 10520543 r12 0x14df950 21887312 r13 0xa087ef 10520559 r14 0x15903f0 22610928 r15 0x12e78e0 19822816 rip 0x43f9b6 0x43f9b6 <lookupOrdinaryNoMNUEtcInClass+38> eflags 0x10283 [ CF SF IF RF ] cs 0x33 51 ss 0x2b 43 ds 0x0 0 es 0x0 0 fs 0x0 0 gs 0x0 0
I obviously didn't have any source files at those paths, but the line numbers may still be of help. The VM was cog_linux64x64_squeak.cog.spur_201702211732 from Travis with the plugins copied over from some previous version, because, as I mentioned it in another mail, newer builds come with no plugins at all.
Levente