On Mon, Feb 15, 2016 at 10:58 PM, Gijs Kruitbosch <gijskruitbo...@gmail.com> wrote:
> On 15/02/2016 05:16, Robert O'Callahan wrote: > >> At this point the limiting factor is getting developers to actually debug >> and fix recorded test failures. >> > > Well, and platform (OS) support for rr, right? And rr also doesn't > effectively support debugging frontend JS tests, AIUI? Have either of those > changed recently? For example, one of the most frequent intermittents in > "my area" is: https://bugzilla.mozilla.org/show_bug.cgi?id=1130411 . But > that's Windows only and pretty much all frontend JS code. Good points. Just because a test only shows up on one platform in automation doesn't mean rr can't find it on Linux. It could be a cross-platform bug that just happens to hit the right conditions on one platform; we've already seen a couple of examples of this. Front-end JS code isn't easy to debug with rr but it is possible with JS engine gdb helpers if you're desperate. Setting breakpoints in Gecko code to catch JS touching native objects or calling JS callbacks, plus liberal use of ::DumpJSStack, helps. Rob -- lbir ye,ea yer.tnietoehr rdn rdsme,anea lurpr edna e hnysnenh hhe uresyf toD selthor stor edna siewaoeodm or v sstvr esBa kbvted,t rdsme,aoreseoouoto o l euetiuruewFa kbn e hnystoivateweh uresyf tulsa rehr rdm or rnea lurpr .a war hsrer holsa rodvted,t nenh hneireseoouot.tniesiewaoeivatewt sstvr esn _______________________________________________ dev-platform mailing list dev-platform@lists.mozilla.org https://lists.mozilla.org/listinfo/dev-platform
