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Bug 1321113
| Summary: | jsc crash on s390x/ppc64 | ||||||
|---|---|---|---|---|---|---|---|
| Product: | [Fedora] Fedora | Reporter: | Than Ngo <than> | ||||
| Component: | webkitgtk4 | Assignee: | Tomas Popela <tpopela> | ||||
| Status: | CLOSED WONTFIX | QA Contact: | Fedora Extras Quality Assurance <extras-qa> | ||||
| Severity: | unspecified | Docs Contact: | |||||
| Priority: | unspecified | ||||||
| Version: | 24 | CC: | dan, klember, mcatanzaro+wrong-account-do-not-cc, than, tpopela | ||||
| Target Milestone: | --- | ||||||
| Target Release: | --- | ||||||
| Hardware: | ppc64 | ||||||
| OS: | Linux | ||||||
| Whiteboard: | |||||||
| Fixed In Version: | Doc Type: | Bug Fix | |||||
| Doc Text: | Story Points: | --- | |||||
| Clone Of: | Environment: | ||||||
| Last Closed: | 2017-01-07 13:37:58 UTC | Type: | Bug | ||||
| Regression: | --- | Mount Type: | --- | ||||
| Documentation: | --- | CRM: | |||||
| Verified Versions: | Category: | --- | |||||
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |||||
| Cloudforms Team: | --- | Target Upstream Version: | |||||
| Embargoed: | |||||||
| Bug Depends On: | |||||||
| Bug Blocks: | 1071880 | ||||||
| Attachments: |
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Created attachment 1140057 [details]
patch fix the crash in jsc on ppc64/s390x
(In reply to Ngo Than from comment #1) > Created attachment 1140057 [details] > patch fix the crash in jsc on ppc64/s390x Hi, sorry for the delay in responding to this. Is this still broken? I do not want to carry architecture support patches downstream unless they have first been submitted upstream. Please see https://webkit.org/contributing-code/ for information on contributing code to WebKit. Once you have submitted this upstream, then let me know here and I can review it for inclusion. yes it's still broken. if i remember correctly i already reported this to upstream last time. I will check and if it's not the case, i will submit it to upstream and let you know. Thanks IIRC Tomas is aware of this issue too. I just know that it was/is indeed broken, but it needs to be retested as the JavaScriptCore codebase is changing quite a lot and it could be broken even more that it was. Hi, looking through these bugs again. This is an upstream bug, not a Fedora bug, so I don't want to keep it open here forever when it seems nobody is working to make JSC work on this architecture. You could report it upstream on bugzilla.webkit.org. |
jsc segfauts on s390x/powerpc. Simple reproduce this issue on ppc64/s390x start jsc and type: print("hallo") Program received signal SIGSEGV, Segmentation fault. 0x0000000000000000 in ?? () Missing separate debuginfos, use: dnf debuginfo-install glib2-2.47.6.19.gad2092b-2.fc24.ppc64 libgcc-6.0.0-0.16.fc24.ppc64 libstdc++-6.0.0-0.16.fc24.ppc64 pcre-8.38-11.fc24.ppc64 (gdb) bt #0 0x0000000000000000 in () #1 0x00003fffb7a2f1b4 in JSC::LLInt::CLoop::execute(JSC::OpcodeID, void*, JSC::VM*, JSC::ProtoCallFrame*, bool) () at /home/than/rpmbuild/BUILD/webkitgtk-2.12.0/ppc64-redhat-linux-gnu/DerivedSources/JavaScriptCore/LLIntAssembly.h:899 #2 0x00003fffb7a2e794 in vmEntryToJavaScript() () at /home/than/rpmbuild/BUILD/webkitgtk-2.12.0/Source/JavaScriptCore/llint/LLIntThunks.cpp:104 #3 0x00003fffb7a1a728 in JSC::JITCode::execute(JSC::VM*, JSC::ProtoCallFrame*) () at /home/than/rpmbuild/BUILD/webkitgtk-2.12.0/Source/JavaScriptCore/jit/JITCode.cpp:80 #4 0x00003fffb7a1301c in JSC::Interpreter::execute(JSC::ProgramExecutable*, JSC::ExecState*, JSC::JSObject*) () at /home/than/rpmbuild/BUILD/webkitgtk-2.12.0/Source/JavaScriptCore/interpreter/Interpreter.cpp:972 #5 0x00003fffb7b7715c in JSC::evaluate(JSC::ExecState*, JSC::SourceCode const&, JSC::JSValue, WTF::NakedPtr<JSC::Exception>&) () at /home/than/rpmbuild/BUILD/webkitgtk-2.12.0/Source/JavaScriptCore/runtime/Completion.cpp:106 #6 0x0000000020011f28 in runJSC() () at /home/than/rpmbuild/BUILD/webkitgtk-2.12.0/Source/JavaScriptCore/jsc.cpp:1902 #7 0x0000000020011f28 in runJSC() () at /home/than/rpmbuild/BUILD/webkitgtk-2.12.0/Source/JavaScriptCore/jsc.cpp:2052 #8 0x00000000200128e8 in jscmain(int, char**) () at /home/than/rpmbuild/BUILD/webkitgtk-2.12.0/Source/JavaScriptCore/jsc.cpp:2101 #9 0x000000002000b730 in main() () at /home/than/rpmbuild/BUILD/webkitgtk-2.12.0/Source/JavaScriptCore/jsc.cpp:1753 (gdb) p /home/than/rpmbuild/BUILD/webkitgtk-2.12.0/ppc64-redhat-linux-gnu/DerivedSources/JavaScriptCore/LLIntAssembly.h It seems the wrong pagesize and loadisFromInstruction causes the crash on s390x/ppc64. I created a fix which resolves the crash. The patch will be attached in next comment.