635756 - crash [@ OptimizeSpanDeps]

Status: RESOLVED WONTFIX

(Core :: JavaScript Engine, defect)

Description

[chris hofmann]

there was a residual crash with this signature that we saw once every few days prior to 4.0 beta 10.  After beta 10 we now see the crash at higher volume around 10-50 crashes per day.

         OptimizeSpanDeps

date     total    breakdown by build
         crashes  count build, count build, ...

20110120 1 4.0b92011011019 	1 , 
20110121   
20110122   
20110123   
20110124 1 3.6.132010120307 	1 , 
20110125 1 4.0b92011011019 	1 , 

20110126 13 4.0b102011012116 	13 , 
20110127 2 4.0b102011012116 	2 , 
20110128 21 4.0b102011012116 	21 , 
20110129 11 4.0b102011012116 	11 , 
20110130 7 4.0b102011012116 	7 , 
20110131 10 4.0b102011012116 	10 , 
20110201 5  	4 4.0b102011012116, 
        		1 3.6.82010072215, 
20110202 5 4.0b102011012116 	5 , 
20110203 3  	2 4.0b102011012116, 
        		1 3.6.102010091412, 
20110204 10  	8 4.0b102011012116, 
        		1 3.6.32010040108, 	1 3.6.132010120307, 
20110205 18 4.0b102011012116 	18 , 
20110206 54  	44 4.0b102011012116, 
        		10 4.0b11pre2011020203, 
20110207 3 4.0b102011012116 	3 , 
20110208 25  	17 4.0b102011012116, 
        		8 4.0b112011020314, 
20110209 46  	45 4.0b112011020314, 
        		1 4.0b102011012116, 
20110210 11  	10 4.0b112011020314, 
        		1 4.0b102011012116, 
20110211 12 4.0b112011020314 	12 , 
20110212 29 4.0b112011020314 	29 , 
20110213 14  	12 4.0b112011020314, 
        		2 3.6.132010120307, 
20110214 5 4.0b112011020314 	5 , 
20110215 7 4.0b112011020314 	7 , 
20110216 3  	2 4.0b112011020314, 
        		1 4.0b102011012116, 
20110217 9  	7 4.0b112011020314, 
        		2 3.6.132010120307, 
20110218 12 4.0b112011020314 	12 , 
20110219 16  	14 4.0b112011020314, 
        		1 3.6.62010062523, 	1 3.6.132010120307, 
20110220 24 4.0b112011020314 	24 , 


This bug was filed from the Socorro interface and is 
report bp-4c0ba2ef-706d-4df6-a4b0-4e2fc2110221 .
============================================================= 

0 	mozjs.dll 	OptimizeSpanDeps 	js/src/jsemit.cpp:1016
1 	mozjs.dll 	js_EmitTree 	js/src/jsemit.cpp:7240
2 	mozjs.dll 	js::Compiler::compileScript 	js/src/jsparse.cpp:1032
3 	mozjs.dll 	EvaluateUCScriptForPrincipalsCommon 	js/src/jsapi.cpp:4933
4 	mozjs.dll 	JS_EvaluateUCScriptForPrincipalsVersion 	js/src/jsapi.cpp:4955
5 	xul.dll 	nsJSContext::EvaluateString 	dom/base/nsJSEnvironment.cpp:1554

more reports at https://crash-stats.mozilla.com/report/list?signature=OptimizeSpanDeps

maybe related to some work going on in jsemit just before b10?

http://hg.mozilla.org/mozilla-central/log/f9d66f4d17bf/js/src/jsemit.cpp

Comment 1

[Sheila Mooney]

It's still there but very low volume. Only 6 crashes on 7.0.1 in the past week, 4 on 8.0. Resolving this as won't fix since it's unlikely to get looked at.