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runtime: higher goroutine arg limit, clearer error

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Fixes #591.

R=ken2
CC=golang-dev
https://golang.org/cl/4803054
This commit is contained in:
Russ Cox 2011-07-27 12:41:46 -04:00
parent c913cb8ba5
commit 100a034120
1 changed files with 7 additions and 2 deletions
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9
src/pkg/runtime/proc.c
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@ -1054,8 +1054,13 @@ runtime·newproc1(byte *fn, byte *argp, int32 narg, int32 nret, void *callerpc)
//printf("newproc1 %p %p narg=%d nret=%d\n", fn, argp, narg, nret);
siz = narg + nret;
siz = (siz+7) & ~7;
if(siz > 1024)
runtime·throw("runtime.newproc: too many args");
// We could instead create a secondary stack frame
// and make it look like goexit was on the original but
// the call to the actual goroutine function was split.
// Not worth it: this is almost always an error.
if(siz > StackMin - 1024)
runtime·throw("runtime.newproc: function arguments too large for new goroutine");
schedlock();