Commit d8e68811 authored by Dmitriy Vyukov's avatar Dmitriy Vyukov

runtime: report "out of memory" in efence mode

Currently processes crash with obscure message.
Say that it's "out of memory".

LGTM=rsc
R=golang-codereviews
CC=golang-codereviews, khr, rsc
https://golang.org/cl/75820045
parent 0da73b9f
......@@ -102,8 +102,12 @@ runtime·stackalloc(G *gp, uint32 n)
runtime·printf("stackalloc %d\n", n);
gp->stacksize += n;
if(runtime·debug.efence || StackFromSystem)
return runtime·SysAlloc(ROUND(n, PageSize), &mstats.stacks_sys);
if(runtime·debug.efence || StackFromSystem) {
v = runtime·SysAlloc(ROUND(n, PageSize), &mstats.stacks_sys);
if(v == nil)
runtime·throw("out of memory (stackalloc)");
return v;
}
// Minimum-sized stacks are allocated with a fixed-size free-list allocator,
// but if we need a stack of a bigger size, we fall back on malloc
......
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