UNADDR in RtlInitializeCriticalSectionEx on every win7 app

[derekbruening]

From bruen...@google.com on February 17, 2011 18:49:03

every test on win7 buildbot has extra unaddr, and I'm seeing this on my
laptop now (wasn't before: not sure whether recent DR changes tweaked
something):

Error #1: UNADDRESSABLE ACCESS: writing 0x010d5980-0x010d5984 4 byte(s)
@0:00:02.312 in thread 296
Note: next higher malloc: 0x010d59a8-0x010d59c8
Note: prev lower malloc: 0x010d5948-0x010d5968
0x779e46f4 <ntdll.dll+0x346f4> ntdll.dll!RtlInitializeCriticalSectionEx
??:0
0x779e24a1 <ntdll.dll+0x324a1> ntdll.dll!RtlInitializeCriticalSectionAndSpinCount
??:0
0x77050060 <KERNELBASE.dll+0x10060> KERNELBASE.dll!InitializeCriticalSectionAndSpinCount
??:0
0x00d0a34b <hello.exe+0xa34b> hello.exe!__crtInitCritSecAndSpinCount
f:\dd\vctools\crt_bld\self_x86\crt\src\initcrit.c:86
0x00d04044 <hello.exe+0x4044> hello.exe!_ioinit
f:\dd\vctools\crt_bld\self_x86\crt\src\ioinit.c:288
0x00d01432 <hello.exe+0x1432> hello.exe!__tmainCRTStartup
f:\dd\vctools\crt_bld\self_x86\crt\src\crt0.c:235
0x75c03677 <KERNEL32.dll+0x13677> KERNEL32.dll!BaseThreadInitThunk
??:0
0x779e9d72 <ntdll.dll+0x39d72> ntdll.dll!RtlInitializeExceptionChain
??:0
0x779e9d45 <ntdll.dll+0x39d45> ntdll.dll!RtlInitializeExceptionChain
??:0

Original issue: http://code.google.com/p/drmemory/issues/detail?id=301

[derekbruening]

From bruen...@google.com on February 23, 2011 08:15:13

the issue here is that a recursive heap call goes off on a tangential sequence of heap actions (here, for "heap maintenance") that are all ignored by my recursive-is-a-helper assumptions. this may also explain issue #37 and issue #21 .

[derekbruening]

From bruen...@google.com on February 23, 2011 20:34:14

this unaddr looks like the one in issue #64

[derekbruening]

From derek.br...@gmail.com on February 24, 2011 21:15:57

This issue was closed by revision r190 .

Status: Fixed