Description
The Dart VM crashes when compiling browser tests. Unfortunately, the crash is not related to a particular test, although it regularly seems to crash on a particular test when all the tests are run in order0. If you run that test in isolation, it passes. If you run the particular test suite it may also pass (or a different test fails). But if you run the entire set of tests like the buildbot, the test will fail. The current one failing is NumberSyntaxTest on the web-ff-win7 bot, but this behavior started happening March 9th in the afternoon.
Some examples of the errors:
Kind: 21886600
http://build.chromium.org/p/client.dart/builders/web-chrome-win7/builds/797/steps/chrome%20tests%3A%20webdriver%20--checked%20--browser%3Dchrome/logs/stdio
and
VM exited with signal 1073741819
http://build.chromium.org/p/client.dart/builders/web-ff-win7/builds/803/steps/ff%20tests%3A%20webdriver%20--checked%20--browser%3Dff/logs/stdio
The second error is reported by frog, which passes on the error signal (-1073741819) sent from the VM, but I believe these different errors are indicative of the same underlying problem. Some web searches suggest this error might be an EXCEPTION_ACCESS_VIOLATION. I looked in the Windows event logs, and got the following message:
Faulting application name: dart.exe
Exception code: 0xc0000005
The browser buildbots will continue to be unstable until we can fix this.
Thanks.