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Re: Tcl/Tk wish shell execution problem under bash
On Thu, Sep 18, 2003 at 10:43:53AM -0400, Igor Pechtchanski wrote:
>On Thu, 18 Sep 2003, Jeff Russell wrote:
>> Igor Pechtchanski wrote:
>> > Can you reproduce the hang by running 'bash -c wish84'? How about 'bash
>> > --login -i -c wish84'? If so, the problem might be triggered by the
>> > presence of bash.
>> The following attempts produce the same hanging behavior:
>> "bash -c /bin/wish84" from a DOS command shell and a bash (--login -i)
>> "bash --login -i -c /bin/wish84" from DOS shell nd a bash (--login -i)
>> "strace -w /bin/wish84" (from a bash shell) works! (Also confirmed by
>> Felix von Hove)
>> I haven't tried the latest snapshot due to learning curve (in progress).
>> JEff Russell
>This validates my WAG somewhat. Does "strace -o wish.strace bash -c
>wish84" reproduce the hang? The reason is that, IIRC, strace uses Windows
>exec mechanisms, rather than Cygwin's, so you need to force Cygwin's exec
>by running bash first.
Also try using a large buffer with strace:
strace -b 1000000 -o wish.strace bash -c wish84
since the large buffer sometimes helps unmask problems which were "fixed"
by the slowdown incurred by running strace.
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