112694 2013-03-19 06:46:41 -0700 Crash when loading http://www.jqchart.com/jquery/gauges/RadialGauge/LiveData 2013-03-21 05:39:19 -0700 1 1 1 Unclassified WebKit JavaScriptCore 528+ (Nightly build) Unspecified Unspecified RESOLVED FIXED http://www.jqchart.com/jquery/gauges/RadialGauge/LiveData InRadar P1 Critical --- 79668 1 jbadics msaboff abecsi allan.jensen fpizlo ggaren msaboff oliver ossy oldest_to_newest 858229 0 jbadics 2013-03-19 06:46:41 -0700 When loading http://www.jqchart.com/jquery/gauges/RadialGauge/LiveData Minibrowser crashes with QNetworkReplyImplPrivate::error. A detailed description can be found at https://bugreports.qt-project.org/browse/QTBUG-30239?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel It can be reproduced on Qt and Nix as well. 858233 1 abecsi 2013-03-19 06:50:56 -0700 The stacktrace points to DFG JIT: Program received signal SIGSEGV, Segmentation fault. [Switching to Thread 0x7fffe1803700 (LWP 7200)] 0x00007ffff1e6e7a4 in JSC::DFG::Node::hasResult (this=0x1) at /home/abecsi/devel/git/webkit-git-svn/Source/JavaScriptCore/dfg/DFGNode.h:622 622 return m_flags & NodeResultMask; (gdb) bt #0 0x00007ffff1e6e7a4 in JSC::DFG::Node::hasResult (this=0x1) at /home/abecsi/devel/git/webkit-git-svn/Source/JavaScriptCore/dfg/DFGNode.h:622 #1 0x00007ffff1f25412 in JSC::DFG::ScoreBoard::useIfHasResult (this=0x7fffffffb200, child=...) at /home/abecsi/devel/git/webkit-git-svn/Source/JavaScriptCore/dfg/DFGScoreBoard.h:136 #2 0x00007ffff1f25678 in JSC::DFG::VirtualRegisterAllocationPhase::run (this=0x7fffffffb4f0) at /home/abecsi/devel/git/webkit-git-svn/Source/JavaScriptCore/dfg/DFGVirtualRegisterAllocationPhase.cpp:94 #3 0x00007ffff1f26327 in JSC::DFG::runAndLog<JSC::DFG::VirtualRegisterAllocationPhase> (phase=...) at /home/abecsi/devel/git/webkit-git-svn/Source/JavaScriptCore/dfg/DFGPhase.h:75 #4 0x00007ffff1f25d8e in JSC::DFG::runPhase<JSC::DFG::VirtualRegisterAllocationPhase> (graph=...) at /home/abecsi/devel/git/webkit-git-svn/Source/JavaScriptCore/dfg/DFGPhase.h:85 #5 0x00007ffff1f24d1b in JSC::DFG::performVirtualRegisterAllocation (graph=...) at /home/abecsi/devel/git/webkit-git-svn/Source/JavaScriptCore/dfg/DFGVirtualRegisterAllocationPhase.cpp:146 #6 0x00007ffff1e8056a in JSC::DFG::compile (compileMode=JSC::DFG::CompileFunction, exec=0x7fff833ff558, codeBlock=0x13d85e0, jitCode=..., jitCodeWithArityCheck=0x7fff830f12c0, osrEntryBytecodeIndex=0) at /home/abecsi/devel/git/webkit-git-svn/Source/JavaScriptCore/dfg/DFGDriver.cpp:145 #7 0x00007ffff1e7fe28 in JSC::DFG::tryCompileFunction (exec=0x7fff833ff558, codeBlock=0x13d85e0, jitCode=..., jitCodeWithArityCheck=..., bytecodeIndex=0) at /home/abecsi/devel/git/webkit-git-svn/Source/JavaScriptCore/dfg/DFGDriver.cpp:179 #8 0x00007ffff201a49d in JSC::jitCompileFunctionIfAppropriate (exec=0x7fff833ff558, codeBlock=..., jitCode=..., jitCodeWithArityCheck=..., jitType=JSC::JITCode::DFGJIT, bytecodeIndex=0, effort=JSC::JITCompilationCanFail) at /home/abecsi/devel/git/webkit-git-svn/Source/JavaScriptCore/jit/JITDriver.h:95 #9 0x00007ffff201a78f in JSC::prepareFunctionForExecution (exec=0x7fff833ff558, codeBlock=..., jitCode=..., jitCodeWithArityCheck=..., jitType=JSC::JITCode::DFGJIT, bytecodeIndex=0, kind=JSC::CodeForCall) at /home/abecsi/devel/git/webkit-git-svn/Source/JavaScriptCore/runtime/ExecutionHarness.h:68 #10 0x00007ffff20189de in JSC::FunctionExecutable::compileForCallInternal (this=0x7fff830f1270, exec=0x7fff833ff558, scope=0x7fff9809ec70, jitType=JSC::JITCode::DFGJIT, bytecodeIndex=0) at /home/abecsi/devel/git/webkit-git-svn/Source/JavaScriptCore/runtime/Executable.cpp:538 #11 0x00007ffff201815b in JSC::FunctionExecutable::compileOptimizedForCall (this=0x7fff830f1270, exec=0x7fff833ff558, scope=0x7fff9809ec70, bytecodeIndex=0) at /home/abecsi/devel/git/webkit-git-svn/Source/JavaScriptCore/runtime/Executable.cpp:463 #12 0x00007ffff1d65aaf in JSC::FunctionExecutable::compileOptimizedFor (this=0x7fff830f1270, exec=0x7fff833ff558, scope=0x7fff9809ec70, bytecodeIndex=0, kind=JSC::CodeForCall) at /home/abecsi/devel/git/webkit-git-svn/Source/JavaScriptCore/runtime/Executable.h:678 #13 0x00007ffff1d6045e in JSC::FunctionCodeBlock::compileOptimized (this=0xc1c520, exec=0x7fff833ff558, scope=0x7fff9809ec70, bytecodeIndex=0) at /home/abecsi/devel/git/webkit-git-svn/Source/JavaScriptCore/bytecode/CodeBlock.cpp:2879 #14 0x00007ffff1f610ae in JSC::cti_optimize (args=0x7fffffffcf50) at /home/abecsi/devel/git/webkit-git-svn/Source/JavaScriptCore/jit/JITStubs.cpp:1899 #15 0x00007ffff1f5e0cd in JSC::tryCacheGetByID (callFrame=0x7fff833ff558, codeBlock=0x7fff9809ec70, returnAddress=..., baseValue=..., propertyName=..., slot=..., stubInfo=0x7fff00000000) at /home/abecsi/devel/git/webkit-git-svn/Source/JavaScriptCore/jit/JITStubs.cpp:996 #16 0x00007fff833ff058 in ?? () 858234 2 abecsi 2013-03-19 06:52:23 -0700 Note that the QNetworkReplyImplPrivate::error is unrelated to the crash. 858362 3 ggaren 2013-03-19 09:44:25 -0700 I can reproduce this in a WebKit nightly as well. 858363 4 ggaren 2013-03-19 09:44:52 -0700 <rdar://problem/13452460> 858675 5 msaboff 2013-03-19 13:24:42 -0700 Have reduced this down to one function that we are crashing while compiling in the DFG. The source is: function (c, u, f) { if (c == null || c.visible != true) return []; var n = [], t = a.fitInRange(c.offset, 0, 1), v = c.length, e = this.cx, g = this.cy, x = e, r = g - t * this.radius, y = e, z = r - v; if (!Array.prototype.filter) Array.prototype.filter = function (c) { "use strict"; if (this === void 0 || this === null) throw new TypeError; var b = Object(this), g = b.length >>> 0; if (typeof c !== "function") throw new TypeError; for (var d = [], f = arguments[1], a = 0; a < g; a++) if (a in b) { var e = b[a]; c.call(f, e, a, b) && d.push(e) } return d }; if (u === false) { var s = this._getMarkInterval(c, false), l = this._getIntervals(s, c, false); if (f.visible === true) { var m = this._getMarkInterval(f, true), j = this._getIntervals(m, f, true), i = []; <===== Appears we are dying after eliminating the NewArray node here i = l.filter(function (a) { return b.inArray(a, j) === -1 }); intrs = i } else intrs = l } else { var m = this._getMarkInterval(c, true), j = this._getIntervals(m, c, true); intrs = j } for (var h = 0; h < intrs.length; h++) { var w = intrs[h], o = this._getAngle(w), p = a.rotatePointAt(x, r, o, e, g), q = a.rotatePointAt(y, z, o, e, g), d = new k(p.x, p.y, q.x, q.y); d.strokeStyle = c.strokeStyle; d.lineWidth = c.lineWidth; d.strokeDashArray = c.strokeDashArray; d.zIndex = c.zIndex; d.dontRound = true; n.push(d) } return n } It looks like we are eliminating at least the NewArray node depicted above. 858781 6 193931 msaboff 2013-03-19 15:03:43 -0700 Created attachment 193931 Patch Reviewed in person. 858806 7 msaboff 2013-03-19 15:24:33 -0700 Committed r146268: <http://trac.webkit.org/changeset/146268> 859224 8 allan.jensen 2013-03-20 03:42:55 -0700 Thanks for the fast fix! The fix however seems to be very specific to the new improvements in DFG, so before I try myself to backport it to something that fits december/january DFG, I would like to ask if you plan to backport it to the safari-536.30-branch because that might also be useable as a backported fix to Qt? 859501 9 ggaren 2013-03-20 09:46:54 -0700 Do we have a layout test for this? 859505 10 msaboff 2013-03-20 09:48:56 -0700 (In reply to comment #9) > Do we have a layout test for this? Working on one. 859520 11 msaboff 2013-03-20 10:01:25 -0700 (In reply to comment #8) > Thanks for the fast fix! > > The fix however seems to be very specific to the new improvements in DFG, so before I try myself to backport it to something that fits december/january DFG, I would like to ask if you plan to backport it to the safari-536.30-branch because that might also be useable as a backported fix to Qt? You are likely referring to the Node* improvements made in http://trac.webkit.org/changeset/141069. I don't have plans to back port. 859594 12 allan.jensen 2013-03-20 12:03:27 -0700 (In reply to comment #11) > (In reply to comment #8) > > Thanks for the fast fix! > > > > The fix however seems to be very specific to the new improvements in DFG, so before I try myself to backport it to something that fits december/january DFG, I would like to ask if you plan to backport it to the safari-536.30-branch because that might also be useable as a backported fix to Qt? > > You are likely referring to the Node* improvements made in http://trac.webkit.org/changeset/141069. I don't have plans to back port. No, I was just naively observing the files and methods you modified are relatively recent additions. Are you sure this is not a potential security issue that would need to be backported? 859643 13 msaboff 2013-03-20 13:20:34 -0700 (In reply to comment #12) > (In reply to comment #11) > > (In reply to comment #8) > > > Thanks for the fast fix! > > > > > > The fix however seems to be very specific to the new improvements in DFG, so before I try myself to backport it to something that fits december/january DFG, I would like to ask if you plan to backport it to the safari-536.30-branch because that might also be useable as a backported fix to Qt? > > > > You are likely referring to the Node* improvements made in http://trac.webkit.org/changeset/141069. I don't have plans to back port. > > No, I was just naively observing the files and methods you modified are relatively recent additions. Are you sure this is not a potential security issue that would need to be backported? The underlying bug fixed here was introduced in http://trac.webkit.org/changeset/144862. 860244 14 allan.jensen 2013-03-21 05:39:19 -0700 (In reply to comment #13) > (In reply to comment #12) > > (In reply to comment #11) > > > (In reply to comment #8) > > > > Thanks for the fast fix! > > > > > > > > The fix however seems to be very specific to the new improvements in DFG, so before I try myself to backport it to something that fits december/january DFG, I would like to ask if you plan to backport it to the safari-536.30-branch because that might also be useable as a backported fix to Qt? > > > > > > You are likely referring to the Node* improvements made in http://trac.webkit.org/changeset/141069. I don't have plans to back port. > > > > No, I was just naively observing the files and methods you modified are relatively recent additions. Are you sure this is not a potential security issue that would need to be backported? > > The underlying bug fixed here was introduced in http://trac.webkit.org/changeset/144862. Ah, then there is/was a second issue. The original crash that opened this bug happens in Qt 5.0.1 which was branched from WebKit trunk in December. 193931 2013-03-19 15:03:43 -0700 2013-03-19 15:03:43 -0700 Patch 112694.patch text/plain 4346 msaboff SW5kZXg6IFNvdXJjZS9KYXZhU2NyaXB0Q29yZS9DaGFuZ2VMb2cKPT09PT09PT09PT09PT09PT09 PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PQotLS0gU291 cmNlL0phdmFTY3JpcHRDb3JlL0NoYW5nZUxvZwkocmV2aXNpb24gMTQ2MjYwKQorKysgU291cmNl L0phdmFTY3JpcHRDb3JlL0NoYW5nZUxvZwkod29ya2luZyBjb3B5KQpAQCAtMSwzICsxLDI0IEBA CisyMDEzLTAzLTE5ICBNaWNoYWVsIFNhYm9mZiAgPG1zYWJvZmZAYXBwbGUuY29tPgorCisgICAg ICAgIENyYXNoIHdoZW4gbG9hZGluZyBodHRwOi8vd3d3LmpxY2hhcnQuY29tL2pxdWVyeS9nYXVn ZXMvUmFkaWFsR2F1Z2UvTGl2ZURhdGEKKyAgICAgICAgaHR0cHM6Ly9idWdzLndlYmtpdC5vcmcv c2hvd19idWcuY2dpP2lkPTExMjY5NAorCisgICAgICAgIFJldmlld2VkIGJ5IEZpbGlwIFBpemxv LgorCisgICAgICAgIFdlIHdlcmUgdHJ5aW5nIHRvIGNvbnZlcnQgYW4gTmV3QXJyYXkgdG8gYSBQ aGFudG9tLCBidXQgY29udmVydFRvUGhhbnRvbSBkb2Vzbid0IGhhbmRsZQorICAgICAgICBub2Rl cyB3aXRoIHZhcmlhYmxlIGFyZ3VtZW50cy4gIEFkZGVkIGNvZGUgdG8gaW5zZXJ0IGEgUGhhbnRv bSBub2RlIGluIGZyb250IG9mIGFsbCB0aGUKKyAgICAgICAgbGl2ZSBjaGlsZHJlbiBvZiBhIHZh ciBhcmdzIG5vZGUuICBBZGRlZCBBU1NFUlQgbm90IHZhciBhcmdzIGZvciBjb252ZXJ0VG9QaGFu dG9tIHRvCisgICAgICAgIGNhdGNoIGFueSBvdGhlciBzaW1pbGFyIGNhc2VzLiAgQWRkZWQgYSBu ZXcgY29udmVydFRvUGhhbnRvbVVuY2hlY2tlZCgpIGZvciBjb252ZXJ0aW5nIAorICAgICAgICB2 YXIgYXJnIG5vZGVzLgorCisgICAgICAgICogZGZnL0RGR0RDRVBoYXNlLmNwcDoKKyAgICAgICAg KEpTQzo6REZHOjpEQ0VQaGFzZTo6cnVuKToKKyAgICAgICAgKiBkZmcvREZHTm9kZS5oOgorICAg ICAgICAoTm9kZSk6CisgICAgICAgIChKU0M6OkRGRzo6Tm9kZTo6c2V0T3BBbmREZWZhdWx0Tm9u RXhpdEZsYWdzKTogQWRkZWQgQVNTRVJUKCEobV9mbGFncyAmIE5vZGVIYXNWYXJBcmdzKSkKKyAg ICAgICAgKEpTQzo6REZHOjpOb2RlOjpzZXRPcEFuZERlZmF1bHROb25FeGl0RmxhZ3NVbmNoZWNr ZWQpOgorICAgICAgICAoSlNDOjpERkc6Ok5vZGU6OmNvbnZlcnRUb1BoYW50b21VbmNoZWNrZWQp OgorCiAyMDEzLTAzLTE5ICBPbGl2ZXIgSHVudCAgPG9saXZlckBhcHBsZS5jb20+CiAKICAgICAg ICAgUkVMRUFTRV9BU1NFUlQgZmlyZXMgaW4gZXhjZXB0aW9uIGhhbmRsZXIgbG9va3VwCkluZGV4 OiBTb3VyY2UvSmF2YVNjcmlwdENvcmUvZGZnL0RGR0RDRVBoYXNlLmNwcAo9PT09PT09PT09PT09 PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09Ci0t LSBTb3VyY2UvSmF2YVNjcmlwdENvcmUvZGZnL0RGR0RDRVBoYXNlLmNwcAkocmV2aXNpb24gMTQ2 MjA1KQorKysgU291cmNlL0phdmFTY3JpcHRDb3JlL2RmZy9ERkdEQ0VQaGFzZS5jcHAJKHdvcmtp bmcgY29weSkKQEAgLTMwLDYgKzMwLDcgQEAKIAogI2luY2x1ZGUgIkRGR0Jhc2ljQmxvY2tJbmxp bmVzLmgiCiAjaW5jbHVkZSAiREZHR3JhcGguaCIKKyNpbmNsdWRlICJERkdJbnNlcnRpb25TZXQu aCIKICNpbmNsdWRlICJERkdQaGFzZS5oIgogI2luY2x1ZGUgIk9wZXJhdGlvbnMuaCIKIApAQCAt ODQsNiArODUsOSBAQCBwdWJsaWM6CiAgICAgICAgICAgICBCYXNpY0Jsb2NrKiBibG9jayA9IG1f Z3JhcGgubV9ibG9ja3NbYmxvY2tJbmRleF0uZ2V0KCk7CiAgICAgICAgICAgICBpZiAoIWJsb2Nr KQogICAgICAgICAgICAgICAgIGNvbnRpbnVlOworCisgICAgICAgICAgICBJbnNlcnRpb25TZXQg aW5zZXJ0aW9uU2V0KG1fZ3JhcGgpOworCiAgICAgICAgICAgICBmb3IgKHVuc2lnbmVkIGluZGV4 SW5CbG9jayA9IGJsb2NrLT5zaXplKCk7IGluZGV4SW5CbG9jay0tOykgewogICAgICAgICAgICAg ICAgIE5vZGUqIG5vZGUgPSBibG9jay0+YXQoaW5kZXhJbkJsb2NrKTsKICAgICAgICAgICAgICAg ICBpZiAobm9kZS0+c2hvdWxkR2VuZXJhdGUoKSkKQEAgLTExNiwxNCArMTIwLDMyIEBAIHB1Ymxp YzoKICAgICAgICAgICAgICAgICAgICAgLy8gTGVhdmUgdGhlbSBhcyBub3Qgc2hvdWxkR2VuZXJh dGUuCiAgICAgICAgICAgICAgICAgICAgIGJyZWFrOwogICAgICAgICAgICAgICAgIH0KLSAgICAg ICAgICAgICAgICAgICAgCisKICAgICAgICAgICAgICAgICBkZWZhdWx0OiB7CisgICAgICAgICAg ICAgICAgICAgIGlmIChub2RlLT5mbGFncygpICYgTm9kZUhhc1ZhckFyZ3MpIHsKKyAgICAgICAg ICAgICAgICAgICAgICAgIGZvciAodW5zaWduZWQgY2hpbGRJZHggPSBub2RlLT5maXJzdENoaWxk KCk7IGNoaWxkSWR4IDwgbm9kZS0+Zmlyc3RDaGlsZCgpICsgbm9kZS0+bnVtQ2hpbGRyZW4oKTsg Y2hpbGRJZHgrKykgeworICAgICAgICAgICAgICAgICAgICAgICAgICAgIEVkZ2UgZWRnZSA9IG1f Z3JhcGgubV92YXJBcmdDaGlsZHJlbltjaGlsZElkeF07CisKKyAgICAgICAgICAgICAgICAgICAg ICAgICAgICBpZiAoIWVkZ2UgfHwgZWRnZS5pc1Byb3ZlZCgpIHx8IGVkZ2UudXNlS2luZCgpID09 IFVudHlwZWRVc2UpCisgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgIGNvbnRpbnVlOwor CisgICAgICAgICAgICAgICAgICAgICAgICAgICAgaW5zZXJ0aW9uU2V0Lmluc2VydE5vZGUoaW5k ZXhJbkJsb2NrLCBTcGVjTm9uZSwgUGhhbnRvbSwgbm9kZS0+Y29kZU9yaWdpbiwgZWRnZSk7Cisg ICAgICAgICAgICAgICAgICAgICAgICB9CisKKyAgICAgICAgICAgICAgICAgICAgICAgIG5vZGUt PmNvbnZlcnRUb1BoYW50b21VbmNoZWNrZWQoKTsKKyAgICAgICAgICAgICAgICAgICAgICAgIG5v ZGUtPmNoaWxkcmVuLnJlc2V0KCk7CisgICAgICAgICAgICAgICAgICAgICAgICBub2RlLT5zZXRS ZWZDb3VudCgxKTsKKyAgICAgICAgICAgICAgICAgICAgICAgIGJyZWFrOworICAgICAgICAgICAg ICAgICAgICB9CisKICAgICAgICAgICAgICAgICAgICAgbm9kZS0+Y29udmVydFRvUGhhbnRvbSgp OwogICAgICAgICAgICAgICAgICAgICBlbGltaW5hdGVJcnJlbGV2YW50UGhhbnRvbUNoaWxkcmVu KG5vZGUpOwogICAgICAgICAgICAgICAgICAgICBub2RlLT5zZXRSZWZDb3VudCgxKTsKICAgICAg ICAgICAgICAgICAgICAgYnJlYWs7CiAgICAgICAgICAgICAgICAgfSB9CiAgICAgICAgICAgICB9 CisKKyAgICAgICAgICAgIGluc2VydGlvblNldC5leGVjdXRlKGJsb2NrKTsKICAgICAgICAgfQog ICAgICAgICAKICAgICAgICAgbV9ncmFwaC5tX3JlZkNvdW50U3RhdGUgPSBFeGFjdFJlZkNvdW50 OwpJbmRleDogU291cmNlL0phdmFTY3JpcHRDb3JlL2RmZy9ERkdOb2RlLmgKPT09PT09PT09PT09 PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PQot LS0gU291cmNlL0phdmFTY3JpcHRDb3JlL2RmZy9ERkdOb2RlLmgJKHJldmlzaW9uIDE0NjIwNSkK KysrIFNvdXJjZS9KYXZhU2NyaXB0Q29yZS9kZmcvREZHTm9kZS5oCSh3b3JraW5nIGNvcHkpCkBA IC0xOTYsMTggKzE5NiwyOSBAQCBzdHJ1Y3QgTm9kZSB7CiAgICAgICAgIG1fb3AgPSBvcDsKICAg ICAgICAgbV9mbGFncyA9IGRlZmF1bHRGbGFncyhvcCk7CiAgICAgfQotICAgIAorCiAgICAgdm9p ZCBzZXRPcEFuZERlZmF1bHROb25FeGl0RmxhZ3MoTm9kZVR5cGUgb3ApCiAgICAgeworICAgICAg ICBBU1NFUlQoIShtX2ZsYWdzICYgTm9kZUhhc1ZhckFyZ3MpKTsKKyAgICAgICAgc2V0T3BBbmRE ZWZhdWx0Tm9uRXhpdEZsYWdzVW5jaGVja2VkKG9wKTsKKyAgICB9CisKKyAgICB2b2lkIHNldE9w QW5kRGVmYXVsdE5vbkV4aXRGbGFnc1VuY2hlY2tlZChOb2RlVHlwZSBvcCkKKyAgICB7CiAgICAg ICAgIG1fb3AgPSBvcDsKICAgICAgICAgbV9mbGFncyA9IChkZWZhdWx0RmxhZ3Mob3ApICYgfk5v ZGVFeGl0c0ZvcndhcmQpIHwgKG1fZmxhZ3MgJiBOb2RlRXhpdHNGb3J3YXJkKTsKICAgICB9Ci0g ICAgCisKICAgICB2b2lkIGNvbnZlcnRUb1BoYW50b20oKQogICAgIHsKICAgICAgICAgc2V0T3BB bmREZWZhdWx0Tm9uRXhpdEZsYWdzKFBoYW50b20pOwogICAgIH0KLSAgICAKKworICAgIHZvaWQg Y29udmVydFRvUGhhbnRvbVVuY2hlY2tlZCgpCisgICAgeworICAgICAgICBzZXRPcEFuZERlZmF1 bHROb25FeGl0RmxhZ3NVbmNoZWNrZWQoUGhhbnRvbSk7CisgICAgfQorCiAgICAgdm9pZCBjb252 ZXJ0VG9JZGVudGl0eSgpCiAgICAgewogICAgICAgICBzZXRPcEFuZERlZmF1bHROb25FeGl0Rmxh Z3MoSWRlbnRpdHkpOwo=