Andy Koppe writes:
> On 8 November 2010 10:15, Henry S. Thompson wrote:
>> Bear with me please, this is moderately complex:
>>
>> . . .the whole thing freezes solid.
>>
>> screen doesn't respond to escape commands, ~. does nothing, Control-C
>> has no effect, trying to close the window results in the "process not
>> responding" popup.
>>
>> It's not repeatable, in that reconnecting and changing to the same
>> gnus Subject buffer will succeed.
>>
>> I _presume_ some obscure character code is responsible. . .
>>
>> Two questions:
>>
>> Â 1) Anyone else seen anything like this?
>
> Not as such, but it could be to do with the following issue: if you
> cat a big file and press any key that sends a character, the terminal
> and cat will be deadlocked, like so:
>
> $ ps
> O 2408 1 2408 2408 ? 99498 12:27:13 /usr/bin/mintty
> O 2672 2772 2672 1580 5 99498 12:27:19 /usr/bin/cat
>
> They're both in write(), waiting for each other to read data from
> their side of the pty. Happens with all the pty-based terminals.
> Killing the cat resolves the deadlock, and the terminal merrily
> continues.
OK, that's not it -- the ps output is
5712 1 5712 5712 ? 1003 16:09:26 /c/Cygwin/bin/mintty
5748 5712 5748 5768 1 1003 16:09:26 /usr/bin/screen
6036 5748 6036 6036 ? 1003 16:09:27 /usr/bin/screen
and procexp shows mintty at 50% of the CPU, i.e. 100% of one of them.
Attaching with gdb shows
#0 0x7c90120f in ntdll!DbgUiConnectToDbg () from
/c/WINDOWS/system32/ntdll.dll
#1 0x7c951e40 in ntdll!KiIntSystemCall () from /c/WINDOWS/system32/ntdll.dll
#2 0x00000005 in ?? ()
#3 0x00000004 in ?? ()
#4 0x00000001 in ?? ()
#5 0x19c3ffd0 in ?? ()
#6 0xba338548 in ?? ()
#7 0xffffffff in ?? ()
#8 0x7c90e920 in strchr () from /c/WINDOWS/system32/ntdll.dll
#9 0x7c951e60 in ntdll!KiIntSystemCall () from /c/WINDOWS/system32/ntdll.dll
#10 0x00000000 in ?? ()
in thread 6 and
#0 0x6110b348 in memcpy () from /c/Cygwin/bin/cygwin1.dll
#1 0x610f393a in dlrealloc () from /c/Cygwin/bin/cygwin1.dll
#2 0x58ca0008 in ?? ()
#3 0x698f0008 in ?? ()
#4 0x082fffe8 in ?? ()
#5 0x00000002 in ?? ()
#6 0x0023c5bc in ?? ()
#7 0x0000fffd in ?? ()
#8 0x698f0008 in ?? ()
#9 0x00506528 in ?? ()
#10 0x08300000 in ?? ()
#11 0x698f0008 in ?? ()
#12 0x0023c8d0 in ?? ()
#13 0x61071218 in realloc () from /c/Cygwin/bin/cygwin1.dll
#14 0x0000fffd in ?? ()
#15 0x005062a0 in ?? ()
#16 0x0000000e in ?? ()
#17 0x00000009 in ?? ()
#18 0x0000000f in ?? ()
#19 0x005062a8 in ?? ()
#20 0x0023c8d0 in ?? ()
#21 0x00020500 in ?? ()
#22 0x00506528 in ?? ()
#23 0x0000000f in ?? ()
#24 0x005062a8 in ?? ()
#25 0x610c01a5 in _sigfe () from /c/Cygwin/bin/cygwin1.dll
#26 0x7475f1a6 in TF_InvalidAssemblyListCache () from
/c/WINDOWS/system32/MSCTF.dll
Cannot access memory at address 0x82fffec
in thread 1
I expect those are no use.
Should I try building a with-symbols version from source?
ht
--
Henry S. Thompson, School of Informatics, University of Edinburgh
10 Crichton Street, Edinburgh EH8 9AB, SCOTLAND -- (44) 131 650-4440
Fax: (44) 131 651-1426, e-mail: h...@inf.ed.ac.uk
URL: http://www.ltg.ed.ac.uk/~ht/
[mail from me _always_ has a .sig like this -- mail without it is forged spam]
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