ASSERT core/emit.c:42 on DR with native_exec

[derekbruening]

From [email protected] on July 29, 2013 16:45:59

1. simple code like
   3 #define NUM_ITERS 10000
   4 #define MALLOC_SIZE 8
   5
   6 int main()
   7 {
   8 int i, j;
   9 void *ptr;
   10 for (i = 0; i < NUM_ITERS; i++) {
   11 for (j = 0; j < NUM_ITERS; j++) {
   12 ptr = malloc(MALLOC_SIZE);
   13 free(ptr);
   14 }
   15 }
   16 return 0;
   17 }

run dr hybrid mode.

~/Workspace/DynamoRIO/builds/build_x64_dbg.git/bin64/drrun -debug -native_exec_list hybrid -native_exec_retakeover -- ./hybrid
<Starting application /home/zhaoqin/Workspace/DynamoRIO/tests/hybrid (7592)>
<Initial options = -code_api -stack_size 56K -max_elide_jmp 0 -max_elide_call 0 -no_inline_ignored_syscalls -native_exec_default_list '' -native_exec_list 'hybrid' -no_native_exec_managed_code -native_exec_retakeover -no_indcall2direct >

Original issue: http://code.google.com/p/dynamorio/issues/detail?id=1233

[derekbruening]

From [email protected] on July 29, 2013 13:53:06

It seems the problem related to trace building. -disable_traces works fine.

[derekbruening]

From [email protected] on July 29, 2013 15:51:37

This issue was closed by revision r2221 .

Status: Fixed

[derekbruening]

From [email protected] on July 31, 2013 09:06:40

More investigation:

(gdb) where
#0 syscall_ready () at /home/zhaoqin/Workspace/DynamoRIO/dynamorio.svn/core/x86/x86.asm:1132
#1 0x000000007160f590 in ?? () from /home/zhaoqin/Workspace/DynamoRIO/builds/build_x64_dbg.svn/bin64/../lib64/debug/libdynamorio.so
#2 0x00000000712d6589 in read_syscall (fd=0, buf=0x4e9bd9b7, nbytes=1) at /home/zhaoqin/Workspace/DynamoRIO/dynamorio.svn/core/unix/os.c:3783
#3 0x00000000712d6d1b in os_read (f=0, buf=0x4e9bd9b7, count=1) at /home/zhaoqin/Workspace/DynamoRIO/dynamorio.svn/core/unix/os.c:3997
#4 0x000000007111f90b in notify (priority=SYSLOG_ERROR, internal=false, synch=false, substitution_num=3, prefix=0x713396d8 "SYSLOG_ERROR",
fmt=0x7133ad38 "Application %s (%s). Internal Error %s") at /home/zhaoqin/Workspace/DynamoRIO/dynamorio.svn/core/utils.c:1953
#5 0x000000007111ff33 in report_dynamorio_problem (dcontext=0x4e944d80, dumpcore_flag=8, exception_addr=0x0, report_ebp=0x4e9be400 "`\345\233N",
fmt=0x71339670 "Internal DynamoRIO Error: %s:%d %s\n(Error occurred @%d frags)") at /home/zhaoqin/Workspace/DynamoRIO/dynamorio.svn/core/utils.c:2202
#6 0x000000007111a7ff in internal_error (file=0x71337938 "/home/zhaoqin/Workspace/DynamoRIO/dynamorio.svn/core/emit.c", line=424,
expr=0x71338240 "!TEST(FRAG_SHARED, flags) || INTERNAL_OPTION(single_thread_in_DR) || !USE_BB_BUILDING_LOCK() || OWN_MUTEX(&bb_building_lock) || OWN_MUTEX(&trace_building_lock)") at /home/zhaoqin/Workspace/DynamoRIO/dynamorio.svn/core/utils.c:174
#7 0x0000000071113820 in emit_fragment_common (dcontext=0x4e944d80,
tag=0x4005c5 <main+65> "H\213E\360H\211\307\350\217\376\377\377\203E\374\001\203}\374cÃE\370\001\203}\370c\260\270", ilist=0x4e9c2358, flags=58720256,
vmlist=0x4e9cad48, link_fragment=true, add_to_htable=false, replace_fragment=0x0) at /home/zhaoqin/Workspace/DynamoRIO/dynamorio.svn/core/emit.c:422
#8 0x000000007111a31f in emit_fragment_ex (dcontext=0x4e944d80,
tag=0x4005c5 <main+65> "H\213E\360H\211\307\350\217\376\377\377\203E\374\001\203}\374cÃE\370\001\203}\370c\260\270", ilist=0x4e9c2358, flags=58720256,
vmlist=0x4e9cad48, link=true, visible=false) at /home/zhaoqin/Workspace/DynamoRIO/dynamorio.svn/core/emit.c:994
#9 0x000000007126b2e7 in build_basic_block_fragment (dcontext=0x4e944d80,
start=0x4005c5 <main+65> "H\213E\360H\211\307\350\217\376\377\377\203E\374\001\203}\374cÃE\370\001\203}\370c\260\270", initial_flags=33554432, link=true,
visible=false, for_trace=true, unmangled_ilist=0x0) at /home/zhaoqin/Workspace/DynamoRIO/dynamorio.svn/core/x86/interp.c:4557
#10 0x00000000711b58ed in create_private_copy (dcontext=0x4e944d80, f=0x4e99eb18) at /home/zhaoqin/Workspace/DynamoRIO/dynamorio.svn/core/monitor.c:186
#11 0x00000000711be7a5 in monitor_cache_enter (dcontext=0x4e944d80, f=0x4e99eb18) at /home/zhaoqin/Workspace/DynamoRIO/dynamorio.svn/core/monitor.c:2336
#12 0x0000000071104afe in dispatch (dcontext=0x4e944d80) at /home/zhaoqin/Workspace/DynamoRIO/dynamorio.svn/core/dispatch.c:171

[derekbruening]

From [email protected] on August 02, 2013 15:09:42

This issue was closed by revision r2232 .