| Summary: | Watchdog doesn't work as expected for some tail calls | ||
|---|---|---|---|
| Product: | WebKit | Reporter: | Yijia Huang <yijia_huang> |
| Component: | JavaScriptCore | Assignee: | Nobody <webkit-unassigned> |
| Status: | NEW --- | ||
| Severity: | Normal | CC: | mark.lam, webkit-bug-importer |
| Priority: | P2 | Keywords: | InRadar |
| Version: | WebKit Nightly Build | ||
| Hardware: | Unspecified | ||
| OS: | Unspecified | ||
Looks like global common subexpression elimination eliminated an InvalidationPoint. That's the reason the watchdog wasn't able to terminate the script. We added a --usePollingTraps=true option to stress test call-link-info-osrexit-repatch.js as a workaround. We should remove that once we fix this problem. |
Options "--watchdog=1000 --watchdog-exception-ok" suppose to let jsc terminate a hanging Javascript program with a time out 1000ms. However, the options fail on this example with a ToT build. ``` function foo(a) { 'use strict'; return foo(a, 0); } foo(1); ```