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From "Vitaly Chaiko (JIRA)" <j...@apache.org>
Subject [jira] Updated: (HARMONY-1912) [drlvm][opt] SIGSEGV during stack dump on Linux
Date Fri, 20 Oct 2006 05:11:39 GMT
     [ http://issues.apache.org/jira/browse/HARMONY-1912?page=all ]

Vitaly Chaiko updated HARMONY-1912:
-----------------------------------

    Attachment: 1912_workarround.patch

Simple workaround in Jitrino.OPT which should eliminate the crash.
But the problem should anyway solved on VM side.

> [drlvm][opt] SIGSEGV during stack dump on Linux
> -----------------------------------------------
>
>                 Key: HARMONY-1912
>                 URL: http://issues.apache.org/jira/browse/HARMONY-1912
>             Project: Harmony
>          Issue Type: Bug
>          Components: DRLVM
>         Environment: SUSE9
>            Reporter: Alexey Varlamov
>            Priority: Minor
>         Attachments: 1912_workarround.patch
>
>
> There is some issue in StackInfo, manifesting itself as a segmentation fault during stack
dump.
> For example, see HARMONY-1911, HARMONY-1908, HARMONY-1908, HARMONY-1905.
> Typical backtrace is as follows:
> SIGSEGV in VM code. 
> Stack trace: 
> 41: Jitrino::Ia32::StackInfo::readByteSize(unsigned char const*) const (/export/users2/avarlamo/linux.ia32/svn-repo/drlvm/vm/jitrino/src/codegenerator/ia32/Ia32StackInfo.cpp:107)

> 42: Jitrino::Ia32::RuntimeInterface::getBcLocationForNative(Jitrino::MethodDesc*, unsigned
long long, unsigned short*) (/export/users2/avarlamo/linux.ia32/svn-repo/drlvm/vm/jitrino/src/codegenerator/ia32/Ia32RuntimeInterface.cpp:78)

> 43: Jitrino::Jitrino::GetBcLocationForNative(Jitrino::MethodDesc*, unsigned long long,
unsigned short*) (/export/users2/avarlamo/linux.ia32/svn-repo/drlvm/vm/jitrino/src/main/Jitrino.cpp:358)

> 44: get_bc_location_for_native (/export/users2/avarlamo/linux.ia32/svn-repo/drlvm/vm/jitrino/src/vm/drl/DrlJITInterface.cpp:590)

> 45: Dll_JIT::get_bc_location_for_native(Method*, void*, unsigned short*) (/export/users2/avarlamo/linux.ia32/svn-repo/drlvm/vm/vmcore/include/dll_jit_intf.h:240)

> 46: get_file_and_line (/export/users2/avarlamo/linux.ia32/svn-repo/drlvm/vm/vmcore/src/stack/stack_trace.cpp:60)

> 47: st_get_java_method_info (/export/users2/avarlamo/linux.ia32/svn-repo/drlvm/vm/vmcore/src/stack/stack_dump.cpp:196)

> 48: st_print_stack(Registers*) (/export/users2/avarlamo/linux.ia32/svn-repo/drlvm/vm/vmcore/src/stack/stack_dump.cpp:242)


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