On 03 March 2006 17:13, Dave Korn wrote:
> On 03 March 2006 16:39, Christian Franke wrote:
>> Steps to reproduce on XP Prof:
>> $ CYGWIN=nontsec ls "/cygdrive/c/System Volume Information"
>> ls: /cygdrive/c/System Volume Information: Permission denied
>> # *** ls hangs with 100% CPU ***
>>
>> Bug is present since cygwin1.dll 20050128, 20050127 was OK.
> It appears to be running to completion and then hitting an infinite loop
> at
>
> (gdb) info symbol 0x61002148
> [EMAIL PROTECTED] + 40 in section .text
>
> which is called from exit(). Can't do better than that yet, I can't seem to
> get these separate .dll/.dbg files to play together right now...
OK, there's been an exception. It keeps on hitting
_cygtls::handle_exceptions(_EXCEPTION_RECORD*, _exception_list*, _CONTEXT*,
void *)
which returns 1 (EXCEPTION_EXECUTE_HANDLER). Not quite sure what happens next
or how it got there, but the SEH chain is looping:
0:000> t
eax=00000000 ebx=0022fbb8 ecx=00000000 edx=7c9037d8 esi=0022e7f8 edi=00000001
eip=7c92aa1b esp=0022e770 ebp=0022e7e0 iopl=0 nv up ei pl zr na po nc
cs=001b ss=0023 ds=0023 es=0023 fs=003b gs=0000 efl=00000246
ntdll!RtlDispatchException+0x139:
7c92aa1b 8b1b mov ebx,[ebx] ds:0023:0022fbb8=0022fbb8
0:000> t
eax=00000000 ebx=0022fbb8 ecx=00000000 edx=7c9037d8 esi=0022e7f8 edi=00000001
eip=7c92aa1d esp=0022e770 ebp=0022e7e0 iopl=0 nv up ei pl zr na po nc
cs=001b ss=0023 ds=0023 es=0023 fs=003b gs=0000 efl=00000246
ntdll!RtlDispatchException+0x13b:
7c92aa1d 83fbff cmp ebx,0xffffffff
0:000> t
eax=00000000 ebx=0022fbb8 ecx=00000000 edx=7c9037d8 esi=0022e7f8 edi=00000001
eip=7c92aa20 esp=0022e770 ebp=0022e7e0 iopl=0 nv up ei pl nz ac pe cy
cs=001b ss=0023 ds=0023 es=0023 fs=003b gs=0000 efl=00000213
ntdll!RtlDispatchException+0x13e:
7c92aa20 0f846cce0000 je ntdll!RtlDispatchException+0x150 (7c937892) [br=0]
0:000> t
eax=00000000 ebx=0022fbb8 ecx=00000000 edx=7c9037d8 esi=0022e7f8 edi=00000001
eip=7c92aa26 esp=0022e770 ebp=0022e7e0 iopl=0 nv up ei pl nz ac pe cy
cs=001b ss=0023 ds=0023 es=0023 fs=003b gs=0000 efl=00000213
ntdll!RtlDispatchException+0x144:
7c92aa26 e9dacd0000 jmp ntdll!RtlDispatchException+0x49 (7c937805)
0:000> dd ebx
0022fbb8 0022fbb8 61018630 00000000 00000000
and it's running round and round calling the SEH filter over and over and over
again. Will post more as I get it.
cheers,
DaveK
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