Re: [webkit-dev] [webkit-help] [squirrelfish-dev] How to debug the JIT when it crash
I think SH4 JIT(in MSVC) for JSC is not supported for r65000. Are you developing yourself or using any other patches yet to land? Current truck supports SH4 JIT only if it is compiled using GCC I guess. On 5 March 2013 11:35, talking1...@gmail.com wrote: Hi Arunprasad, ** ** Thanks for your tips. ** ** ** ** My environment as following: CPU: SH4; SVN revision: 65000 OS: WINCE Tool Chain: MSVS+PB JS test case: I cann’t get the single js test case. But I can reproduce it as this steps[First access the http://image.baidu.com/, then access http://maps.google.de, wait 2-5 minitues, it will crash. The crash type is “access violation”]. ** ** I have try to debug it, find that the crash was caused by the jit, if we disable the JIT feature, the browser will not crash. ** ** As the test case is very complex and it is hard to be simplify, so I don’t know how to debug it. ** ** I try to print all the emitted instructions, but it is too many for me to analyze, after the instructions were emitted, the instruction will be repatch or relink, so anybody can give me some suggestion for how to debug it. ** ** ** ** Thanks. ** ** ** ** *From:* talking1239+caf_=talking1239=126@gmail.com [mailto: talking1239+caf_=talking1239=126@gmail.com] *On Behalf Of *Arunprasad Rajkumar *Sent:* 2013年3月4日 20:28 *To:* talking1...@gmail.com *Cc:* webkit-h...@lists.webkit.org; squirrelfish-...@lists.webkit.org; webkit-dev@lists.webkit.org *Subject:* Re: [webkit-dev] [webkit-help] [squirrelfish-dev] How to debug the JIT when it crash ** ** It will be good to mention CPU, WebKit SVN revision, OS, Tool Chain, JS test case name(Sun Spider,..?)..etc so that people can give more suggestions. On 4 March 2013 16:11, talking1...@gmail.com wrote: Hi All, apologies for the spam. right now I am trying to fix the jit crash bug, but I don't know how to start it, can anyone give me some suggestion? when javascript engine run some special test case, it will run crash. I have print all the emited instructions, but the instructions will be repatch or relink after it run, so is exist an way or steps for debugging it? Thanks in advance! -- BGs/Felix Shi ___ webkit-dev mailing list webkit-dev@lists.webkit.org https://lists.webkit.org/mailman/listinfo/webkit-dev ** ** -- *Arunprasad Rajkumar* http://in.linkedin.com/in/ararunprasad -- *Arunprasad Rajkumar* http://in.linkedin.com/in/ararunprasad ___ webkit-dev mailing list webkit-dev@lists.webkit.org https://lists.webkit.org/mailman/listinfo/webkit-dev
Re: [webkit-dev] [webkit-help] [squirrelfish-dev] How to debug the JIT when it crash
On Mar 4, 2013, at 2:41 AM, talking1...@gmail.com wrote: Hi All, apologies for the spam. Please, it’s not acceptable to cross-post to all three of lists to ask for help debugging a problem. If we all did that we’d have tons of traffic on these mailing lists. Stop! Please at least narrow this down to just the webkit-help list, or better please use a bug report for this discussion instead. -- Darin ___ webkit-dev mailing list webkit-dev@lists.webkit.org https://lists.webkit.org/mailman/listinfo/webkit-dev
[webkit-dev] [webkit-help] [squirrelfish-dev] How to debug the JIT when it crash
Hi All, apologies for the spam. right now I am trying to fix the jit crash bug, but I don't know how to start it, can anyone give me some suggestion? when javascript engine run some special test case, it will run crash. I have print all the emited instructions, but the instructions will be repatch or relink after it run, so is exist an way or steps for debugging it? Thanks in advance! -- BGs/Felix Shi ___ webkit-dev mailing list webkit-dev@lists.webkit.org https://lists.webkit.org/mailman/listinfo/webkit-dev
Re: [webkit-dev] [webkit-help] [squirrelfish-dev] How to debug the JIT when it crash
Hi Arunprasad, Thanks for your tips. My environment as following: CPU: SH4; SVN revision: 65000 OS: WINCE Tool Chain: MSVS+PB JS test case: I cann’t get the single js test case. But I can reproduce it as this steps[First access the http://image.baidu.com/, then access http://maps.google.de, wait 2-5 minitues, it will crash. The crash type is “access violation”]. I have try to debug it, find that the crash was caused by the jit, if we disable the JIT feature, the browser will not crash. As the test case is very complex and it is hard to be simplify, so I don’t know how to debug it. I try to print all the emitted instructions, but it is too many for me to analyze, after the instructions were emitted, the instruction will be repatch or relink, so anybody can give me some suggestion for how to debug it. Thanks. From: talking1239+caf_=talking1239=126@gmail.com [mailto:talking1239+caf_=talking1239=126@gmail.com] On Behalf Of Arunprasad Rajkumar Sent: 2013年3月4日 20:28 To: talking1...@gmail.com Cc: webkit-h...@lists.webkit.org; squirrelfish-...@lists.webkit.org; webkit-dev@lists.webkit.org Subject: Re: [webkit-dev] [webkit-help] [squirrelfish-dev] How to debug the JIT when it crash It will be good to mention CPU, WebKit SVN revision, OS, Tool Chain, JS test case name(Sun Spider,..?)..etc so that people can give more suggestions. On 4 March 2013 16:11, talking1...@gmail.com wrote: Hi All, apologies for the spam. right now I am trying to fix the jit crash bug, but I don't know how to start it, can anyone give me some suggestion? when javascript engine run some special test case, it will run crash. I have print all the emited instructions, but the instructions will be repatch or relink after it run, so is exist an way or steps for debugging it? Thanks in advance! -- BGs/Felix Shi ___ webkit-dev mailing list webkit-dev@lists.webkit.org https://lists.webkit.org/mailman/listinfo/webkit-dev -- Arunprasad Rajkumar http://in.linkedin.com/in/ararunprasad http://in.linkedin.com/in/ararunprasad ___ webkit-dev mailing list webkit-dev@lists.webkit.org https://lists.webkit.org/mailman/listinfo/webkit-dev
