cmd/compile: internal compiler error: fault (due to long string) #1700
Comments
If you want to fix this, feel free. I think you will find that many things will not work very well if you try to use data literals > 2GB in size. Owner changed to @rsc. Status changed to HelpWanted. |
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Owner changed to @lvdlvd. |
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Owner changed to builder@golang.org. |
rsc
changed the title
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go version go1.6 linux/amd64 Building the above program works with a 1GB string OK. However, its maximum resident set size was 62GB. A build containing a 2GB string was killed by the kernel when the system ran out of memory (104GB). |
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The current go toolchain doesn't support more than 2GB
of static data (including instructions) on amd64 anyway.
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With Go 1.9, I used https://play.golang.org/p/Hc8V87IGvU in order to create a 2.1 gig Go file (dominated by the giant string). When I tried to compile it, I got this: Those are coming from the linker. I am now looking into what the next steps are to prevent sending input that is too big to the linker, so that we give a useful error message. |
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Change https://golang.org/cl/74330 mentions this issue: |
by gynvael@google.com:
1. What is a short input program that triggers the error? package main func main() { print("---> very large (e.g. 2GB) string here <---") } 2. What is the full compiler output? > 6g a1.go a1.go:11: internal compiler error: fault Please file a bug report including a short program that triggers the error. http://code.google.com/p/go/issues/entry?template=compilerbug 3. What version of the compiler are you using? (Run it with the -V flag.) 6g version release.2011-03-07 7666 4. Dump from GDB: Program received signal SIGSEGV, Segmentation fault. _wordcopy_fwd_aligned (dstp=7237624, srcp=<value optimized out>, len=134199024) at wordcopy.c:101 101 wordcopy.c: No such file or directory. in wordcopy.c (gdb) where #0 _wordcopy_fwd_aligned (dstp=7237624, srcp=<value optimized out>, len=134199024) at wordcopy.c:101 #1 0x00007ffff785c852 in memmove (dest=0x6c2780, src=<value optimized out>, len=1073741824) at memmove.c:73 #2 0x0000000000426046 in remal (p=0x7fff779cd010, on=1073741824, n=1073741824) at /usr/include/bits/string3.h:59 #3 0x0000000000438685 in _yylex () at /go_lang/go/src/cmd/gc/lex.c:662 #4 yylex () at /go_lang/go/src/cmd/gc/lex.c:1270 #5 0x0000000000432965 in yyparse () at y.tab.c:2231 #6 0x000000000043794a in p9main (argc=1, argv=<value optimized out>) at /go_lang/go/src/cmd/gc/lex.c:225 #7 0x000000000043de99 in main (argc=7237624, argv=0x7fff779f1890) at /go_lang/go/src/lib9/main.c:35 (gdb) info reg rax 0x6161616161616161 7016996765293437281 rbx 0x7fff779cd010 140735200153616 rcx 0x6161616161616161 7016996765293437281 rdx 0x7ffb6f0 134199024 rsi 0x7fff779f1890 140735200303248 rdi 0x6e6ff8 7237624 rbp 0x6c2780 0x6c2780 rsp 0x7fffffffce88 0x7fffffffce88 r8 0x0 0 r9 0x200000 2097152 r10 0x0 0 r11 0x246 582 r12 0x6c2780 7088000 r13 0x40000000 1073741824 r14 0x7fffffffcf00 140737488342784 r15 0x7fffffffcf08 140737488342792 rip 0x7ffff785e17c 0x7ffff785e17c <_wordcopy_fwd_aligned+124> eflags 0x10206 [ PF IF RF ] cs 0x33 51 ss 0x2b 43 ds 0x0 0 es 0x0 0 fs 0x0 0 gs 0x0 0 (gdb) x/1i $rip => 0x7ffff785e17c <_wordcopy_fwd_aligned+124>: mov QWORD PTR [rdi+0x8],raxThe text was updated successfully, but these errors were encountered: