Status: New
Owner: ----
New issue 1424 by [email protected]: "unreachable code" in
Debug::FindDebugBreak.
http://code.google.com/p/v8/issues/detail?id=1424
[2562:2562:179029780829:INFO:CONSOLE(1155)] "playfile
filesystem:chrome://mediaplayer/external/media/tail toddle.mp3", source:
chrome://mediaplayer/ (1155)
#
# Fatal error in v8/src/debug.cc, line 1518
# unreachable code
#
==== Stack trace ============================================
Security context: 0xeacc5339 <String[20]: chrome://mediaplayer>
2: checkId3v2 [chrome://mediaplayer/:554] (this=0xed801895 <a
Sequence>>#0#,file=0xed80187d <a File>>#1#,arrayBuffer=0xed801865 <an
ArrayBuffer>>#2#)
4: /* anonymous */ [chrome://mediaplayer/:433] (this=0xeac847b5 <JS
Global Object>#3#,var_args=0xed80187d <a File>>#1#)
5: arguments adaptor frame: 2->1
6: /* anonymous */ [chrome://mediaplayer/:496] (this=0xed801955 <a
FileReader>>#4#)
7: arguments adaptor frame: 1->0
==== Details ================================================
[2]: checkId3v2 [chrome://mediaplayer/:554] (this=0xed801895 <a
Sequence>>#0#,file=0xed80187d <a File>>#1#,arrayBuffer=0xed801865 <an
ArrayBuffer>>#2#) {
// expression stack (top to bottom)
[04] : 3
[03] : 0
[02] : 0xed801865 <an ArrayBuffer>>#2#
[01] : 0xe6a8b0f5 <an Object>>#5#
[00] : 0xed801841 <JS Function checkId3v2>#6#
--------- s o u r c e c o d e ---------
function checkId3v2(file, arrayBuffer) {? if
(id3.extractString_(arrayBuffer, 0, 3) == "ID3") {?
alert("id3v2 tags found");? }?
this.nextStep();? }
-----------------------------------------
}
[4]: /* anonymous */ [chrome://mediaplayer/:433] (this=0xeac847b5 <JS
Global Object>#3#,var_args=0xed80187d <a File>>#1#) {
// stack-allocated locals
var .arguments = 0xed8018d5 <an Arguments>>#7#
var resume = 0xed8018e9 <JS Function resume>#8#
var sequence = 0xec198051 <undefined>
var step = 0xec198051 <undefined>
var arguments = 0xed8018d5 <an Arguments>>#7#
// heap-allocated locals
var remaining = 0xec198051 <undefined>
// expression stack (top to bottom)
[07] : 0xed8018d5 <an Arguments>>#7#
[06] : 0xed801895 <a Sequence>>#0#
[05] : 0xed801841 <JS Function checkId3v2>#6#
--------- s o u r c e c o d e ---------
function (var_args) {? if (_failed) return;? ?
_currentStep++;?? if (_currentStep >= _steps.length ) {?
_callback();? } else if (typeof _steps[_currentStep] == 'function')
{? _steps[_currentStep].apply(_self, arguments);? } else {? //
if _steps[_currentStep] is array? va...
-----------------------------------------
}
[5]: arguments adaptor frame: 2->1 {
// actual arguments
[00] : 0xed80187d <a File>>#1#
[01] : 0xed801865 <an ArrayBuffer>>#2# // not passed to callee
}
[6]: /* anonymous */ [chrome://mediaplayer/:496] (this=0xed801955 <a
FileReader>>#4#) {
// expression stack (top to bottom)
[03] : 0xed801865 <an ArrayBuffer>>#2#
[02] : 0xed80187d <a File>>#1#
[01] : 0xeac847b5 <JS Global Object>#3#
[00] : 0xe65a13bd <JS Function>#9#
--------- s o u r c e c o d e ---------
function (){loadend(file, fileReader.result)}
-----------------------------------------
}
[7]: arguments adaptor frame: 1->0 {
// actual arguments
[00] : 0xed801971 <a ProgressEvent>>#10# // not passed to callee
}
==== Key ============================================
#0# 0xed801895: 0xed801895 <a Sequence>>
log: 0xe65a1369 <JS Function>#11#
vlog: 0xe65a1399 <JS Function>#12#
failureCallback: 0xed822391 <JS Function onError>#13#
#1# 0xed80187d: 0xed80187d <a File>>
#2# 0xed801865: 0xed801865 <an ArrayBuffer>>
#3# 0xeac847b5: 0xeac847b5 <JS Global Object>
#4# 0xed801955: 0xed801955 <a FileReader>>
#5# 0xe6a8b0f5: 0xe6a8b0f5 <an Object>>
verbose: 0xec1980a5 <true>
#6# 0xed801841: 0xed801841 <JS Function checkId3v2>
#7# 0xed8018d5: 0xed8018d5 <an Arguments>>
callee: 0xe65a13bd <JS Function>#9#
length: 2
#8# 0xed8018e9: 0xed8018e9 <JS Function resume>
#9# 0xe65a13bd: 0xe65a13bd <JS Function>
#10# 0xed801971: 0xed801971 <a ProgressEvent>>
#11# 0xe65a1369: 0xe65a1369 <JS Function>
#12# 0xe65a1399: 0xe65a1399 <JS Function>
#13# 0xed822391: 0xed822391 <JS Function onError>
=====================
Aborted
zvorygin@stonehenge:~/local/chromium/src$
---------
Segfault happens when click "step into next function call" on DevTools.
Javascript code can provide on demand.
--------
V8 revision is 7779
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