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runtime: failures with "cannot map pages in arena address space" on freebsd-amd64-race since 2021-11-09 #49687

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bcmills opened this issue Nov 19, 2021 · 1 comment

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@bcmills
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@bcmills bcmills commented Nov 19, 2021

fatal error: runtime: cannot map pages in arena address space

runtime stack:
runtime.throw({0x9f747c?, 0x0?})
	/tmp/workdir/go/src/runtime/panic.go:992 +0x71
runtime.sysMap(0x0, 0x40ccc9?, 0xc000611358?)
	/tmp/workdir/go/src/runtime/mem_bsd.go:76 +0xa5
runtime.(*mheap).grow(0xdd4320, 0xc000611200?)
	/tmp/workdir/go/src/runtime/mheap.go:1404 +0x225
runtime.(*mheap).allocSpan(0xdd4320, 0x0, 0x0, 0x0)
	/tmp/workdir/go/src/runtime/mheap.go:1170 +0x171
runtime.(*mheap).alloc.func1()
	/tmp/workdir/go/src/runtime/mheap.go:912 +0x65
runtime.systemstack()
	/tmp/workdir/go/src/runtime/asm_amd64.s:469 +0x49

greplogs --dashboard -md -l -e '^fatal error: runtime: cannot map pages in arena address space' --since=2021-01-01

2021-11-19T00:05:59-ae814b3-e8cda0a/freebsd-amd64-race
2021-11-09T00:08:42-b76863e-5344dca/freebsd-amd64-race

@bcmills
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@bcmills bcmills commented Nov 19, 2021

I suspect that this may be due to memory exhaustion; as noted in #49347 (comment), the freebsd-amd64-race builder has a higher CPU-to-RAM ratio than most of the other -race builders, which may cause its GOMAXPROCS to be fairly aggressive for the amount of available memory.

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