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This program may be running out of memory, but that should not cause a slice panic deep in the allocator.
$ cat x.go package main var x []byte func main() { for i := 0; i < 100; i++ { print(".") x = make([]byte, 1600e6) } println(x) } $ GOARCH=386 go run x.go ..fatal error: slice bounds out of range runtime stack: runtime.throw(0x80b1f3c, 0x19) /usr/local/google/home/rsc/go/src/runtime/panic.go:1114 +0x6a runtime.panicCheck1(0x8067029, 0x80b1f3c, 0x19) /usr/local/google/home/rsc/go/src/runtime/panic.go:34 +0xb9 runtime.goPanicSliceBU(0x35d, 0xd9) /usr/local/google/home/rsc/go/src/runtime/panic.go:119 +0x37 runtime.(*pageAlloc).update(0x8103de4, 0xd7000000, 0x2fc00, 0x1) /usr/local/google/home/rsc/go/src/runtime/mpagealloc.go:430 +0x479 runtime.(*pageAlloc).grow(0x8103de4, 0xd7000000, 0x5f800000) /usr/local/google/home/rsc/go/src/runtime/mpagealloc.go:394 +0x175 runtime.(*mheap).grow(0x8103de0, 0x2faf1, 0x0) /usr/local/google/home/rsc/go/src/runtime/mheap.go:1336 +0x81 runtime.(*mheap).allocSpan(0x8103de0, 0x2faf1, 0x100, 0x81130e8, 0x5744ff84) /usr/local/google/home/rsc/go/src/runtime/mheap.go:1124 +0x5df runtime.(*mheap).alloc.func1() /usr/local/google/home/rsc/go/src/runtime/mheap.go:871 +0x4c runtime.(*mheap).alloc(0x8103de0, 0x2faf1, 0x8090101, 0x574000e0) /usr/local/google/home/rsc/go/src/runtime/mheap.go:865 +0x63 runtime.largeAlloc(0x5f5e1000, 0x57410101, 0x1) /usr/local/google/home/rsc/go/src/runtime/malloc.go:1163 +0x76 runtime.mallocgc.func1() /usr/local/google/home/rsc/go/src/runtime/malloc.go:1058 +0x39 runtime.systemstack(0x57400540) /usr/local/google/home/rsc/go/src/runtime/asm_386.s:395 +0x53 runtime.mstart() /usr/local/google/home/rsc/go/src/runtime/proc.go:1078 goroutine 1 [running]: runtime.systemstack_switch() /usr/local/google/home/rsc/go/src/runtime/asm_386.s:356 fp=0x5743a748 sp=0x5743a744 pc=0x8094da0 runtime.mallocgc(0x5f5e1000, 0x80a4160, 0x8071401, 0x8112324) /usr/local/google/home/rsc/go/src/runtime/malloc.go:1057 +0x6a7 fp=0x5743a79c sp=0x5743a748 pc=0x8051727 runtime.makeslice(0x80a4160, 0x5f5e1000, 0x5f5e1000, 0x77800000) /usr/local/google/home/rsc/go/src/runtime/slice.go:49 +0x4f fp=0x5743a7b0 sp=0x5743a79c pc=0x80828ef main.main() /usr/local/google/home/rsc/x.go:8 +0x6b fp=0x5743a7c8 sp=0x5743a7b0 pc=0x809934b runtime.main() /usr/local/google/home/rsc/go/src/runtime/proc.go:204 +0x1fd fp=0x5743a7f0 sp=0x5743a7c8 pc=0x807221d runtime.goexit() exit status 2 $
/cc @aclements
The text was updated successfully, but these errors were encountered:
I believe this is a dup of #35954.
Sorry, something went wrong.
I agree. Closing as dup of #35954. /cc @mknyszek
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This program may be running out of memory,
but that should not cause a slice panic deep in
the allocator.
/cc @aclements
The text was updated successfully, but these errors were encountered: