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| author | Russ Cox <rsc@golang.org> | 2013-08-15 22:34:06 -0400 |
|---|---|---|
| committer | Russ Cox <rsc@golang.org> | 2013-08-15 22:34:06 -0400 |
| commit | 757e0de89f80e89626cc8b7d6e670c0e5ea7f192 (patch) | |
| tree | 42b7768f368edc26299146007ebf0777618fa677 /src/pkg/runtime/panic.c | |
| parent | 205329aaf2ec9aff13c4052f6dfa552e65760ea9 (diff) | |
| download | go-757e0de89f80e89626cc8b7d6e670c0e5ea7f192.tar.xz | |
runtime: impose stack size limit
The goal is to stop only those programs that would keep
going and run the machine out of memory, but before they do that.
1 GB on 64-bit, 250 MB on 32-bit.
That seems implausibly large, and it can be adjusted.
Fixes #2556.
Fixes #4494.
Fixes #5173.
R=khr, r, dvyukov
CC=golang-dev
https://golang.org/cl/12541052
Diffstat (limited to 'src/pkg/runtime/panic.c')
| -rw-r--r-- | src/pkg/runtime/panic.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/src/pkg/runtime/panic.c b/src/pkg/runtime/panic.c index 61afbf6e73..4fbbed1071 100644 --- a/src/pkg/runtime/panic.c +++ b/src/pkg/runtime/panic.c @@ -320,8 +320,10 @@ runtime·unwindstack(G *gp, byte *sp) gp->stackbase = top->stackbase; gp->stackguard = top->stackguard; gp->stackguard0 = gp->stackguard; - if(top->free != 0) + if(top->free != 0) { + gp->stacksize -= top->free; runtime·stackfree(stk, top->free); + } } if(sp != nil && (sp < (byte*)gp->stackguard - StackGuard || (byte*)gp->stackbase < sp)) { |