harmony-commits mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Ilya Leviev (JIRA)" <j...@apache.org>
Subject [jira] Closed: (HARMONY-3948) [drlvm][port][lil] Known/proven race conditions markup at at "stack_iterator_ia32.cpp":67 at si_unwind_from_m2n()
Date Mon, 28 May 2007 11:36:16 GMT

     [ https://issues.apache.org/jira/browse/HARMONY-3948?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Ilya Leviev closed HARMONY-3948.
--------------------------------


Gregory, patch verified at r542204. 
Thank you for applying it.

> [drlvm][port][lil] Known/proven race conditions markup at at "stack_iterator_ia32.cpp":67
at si_unwind_from_m2n()
> -----------------------------------------------------------------------------------------------------------------
>
>                 Key: HARMONY-3948
>                 URL: https://issues.apache.org/jira/browse/HARMONY-3948
>             Project: Harmony
>          Issue Type: Bug
>          Components: DRLVM
>            Reporter: Ilya Leviev
>            Assignee: Gregory Shimansky
>         Attachments: HARMONY-3948_add_markup.patch, SourceViewScreenshot-1.jpg
>
>
> TC report on thread unsafe access that result in race condition that occur during concurrent
execution of si_unwind_from_m2n functions.
> As issues related to vm statistic data collection in debug mode and it not affect correctness
of execution I mark it by special API for prevention of further alarms on this race.
> Write -> Write data-race	
> Memory write at "stack_iterator_ia32.cpp":67 conflicts with a prior memory write at "stack_iterator_ia32.cpp":67
> Stack Trace: 
> Context
> 	Function vm_get_gc_thread_local "c_interface.cpp":2334
> 	Function gc_alloc_fast "gc_for_vm.cpp":178
> 	Function vm_get_gc_thread_local "c_interface.cpp":2334
> 	Function gc_alloc_fast "gc_for_vm.cpp":178
> 	Function class VM_thread * get_thread_ptr_stub(void) "thread_manager.cpp":138
> 	Function hythread_suspend_enable "hythread_ext.h":370
> 	Function Java_org_apache_harmony_vm_VMStack_getCallerClass "org_apache_harmony_vm_vmstack.cpp":59
> 	Function st_get_frame "stack_trace.cpp":137
> 	Function void si_goto_previous(struct StackIterator *,bool) "stack_iterator_ia32.cpp":318
> 	Function si_unwind_from_m2n "stack_iterator_ia32.cpp":65
> 1st Access
> 	Function class VM_thread * get_thread_ptr_stub(void) "thread_manager.cpp":138
> 	Function m2n_free_local_handles "m2n_ia32.cpp":268
> 	Function vm_get_gc_thread_local "c_interface.cpp":2334
> 	Function int Jitrino::Jet::rt_h_lcmp(__int64,__int64) "arith_rt.cpp":69
> 	Function class VM_thread * get_thread_ptr_stub(void) "thread_manager.cpp":138
> 	Function hythread_suspend_enable "hythread_ext.h":370
> 	Function Java_java_security_AccessController_getStackDomains "org_apache_harmony_vm_vmstack.cpp":185
> 	Function st_get_trace "stack_trace.cpp":205
> 	Function void si_goto_previous(struct StackIterator *,bool) "stack_iterator_ia32.cpp":318
> 	Function si_unwind_from_m2n "stack_iterator_ia32.cpp":67
> 	"63"	""	" // Goto the managed frame immediately prior to m2nfl"
> 	"64"	""	" static void si_unwind_from_m2n(StackIterator* si, bool over_popped = true)"
> 	"65"	""	" {"
> 	"66"	""	" #ifdef VM_STATS"
> 	"67"	"*"	"     VM_Statistics::get_vm_stats().num_unwind_native_frames_all++;"
> 	"68"	""	" #endif"
> 	"69"	""	" "
> 	"70"	""	"     M2nFrame* m2nfl = si->m2nfl;"
> 2nd Access
> 	Function vm_get_gc_thread_local "c_interface.cpp":2334
> 	Function gc_alloc_fast "gc_for_vm.cpp":178
> 	Function vm_get_gc_thread_local "c_interface.cpp":2334
> 	Function gc_alloc_fast "gc_for_vm.cpp":178
> 	Function class VM_thread * get_thread_ptr_stub(void) "thread_manager.cpp":138
> 	Function hythread_suspend_enable "hythread_ext.h":370
> 	Function Java_org_apache_harmony_vm_VMStack_getCallerClass "org_apache_harmony_vm_vmstack.cpp":59
> 	Function st_get_frame "stack_trace.cpp":137
> 	Function void si_goto_previous(struct StackIterator *,bool) "stack_iterator_ia32.cpp":318
> 	Function si_unwind_from_m2n "stack_iterator_ia32.cpp":67See also Source View screenshots.
> 	"63"	""	" // Goto the managed frame immediately prior to m2nfl"
> 	"64"	""	" static void si_unwind_from_m2n(StackIterator* si, bool over_popped = true)"
> 	"65"	""	" {"
> 	"66"	""	" #ifdef VM_STATS"
> 	"67"	"*"	"     VM_Statistics::get_vm_stats().num_unwind_native_frames_all++;"
> 	"68"	""	" #endif"
> 	"69"	""	" "
> 	"70"	""	"     M2nFrame* m2nfl = si->m2nfl;"
> See also Source View screenshots.

-- 
This message is automatically generated by JIRA.
-
You can reply to this email to add a comment to the issue online.


Mime
View raw message