[Bitcoin-development] Coin Control, Send crash on MacOS X

Warren Togami Jr. wtogami at gmail.com
Wed Dec 4 01:57:00 UTC 2013


On Sun, Dec 1, 2013 at 1:19 AM, Wladimir <laanwj at gmail.com> wrote:

> On Sun, Dec 1, 2013 at 12:05 PM, Warren Togami Jr. <wtogami at gmail.com>wrote:
>
>> https://github.com/litecoin-project/bitcoinomg/commits/0.8.5-OMG6
>> http://download1.rpmfusion.org/~warren/bitcoin-0.8.5-OMG6/
>> I've been backporting patches from master and Litecoin to make a Bitcoin
>> 0.8 client with more features.  It works quite well on Linux and Win32.
>>
>> http://pastebin.com/g8QqheGc
>> Today we discovered a rare crash that can happen on MacOS X. toffoo and
>> coblee reproduced it on MacOS X 10.9 and I reproduced it on 10.6.8. It
>> seems to be some kind of race condition involving SendCoinsEntry::clear().
>>
>>
>>    1. 11  QtGui                               0x00e28141
>>    QWidget::setFocus(Qt::FocusReason) + 289
>>    2. 12  org.bitcoinfoundation.Bitcoin-Qt    0x002ca665
>>    SendCoinsEntry::clear() + 101
>>
>>
> I don't think the setFocus should be in clear() in the first place. It
> conflates clearing the widgets and changing the focus.
>
> If the automatic focus change is desirable at all it could be moved to a
> seperate function "focusPayTo".
>
> In any case it's just a nicety and should just be removed if it causes
> problems.
>
> Wladimir
>
>
Did as you suggested, removed both setFocus() calls that happen after Send
is clicked

http://pastebin.com/j4adDpsM
Now it crashes in something else within qt.

I'm trying other things...

Warren
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