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According to Bob Brown on 8/9/2005 10:25 PM:
>
>>Hmm, you're making bash expand a wildcard into 45000 files. This
>>shouldn't crash bash, but I'm guessing there is some of memory
>>corruption or malloc failure when consuming so much memory all before
>>forking(). I'll have to see if I can try and reproduce the failure.
>
> Do you think the win32 path length will be included for every file? If this
> is
> the case you can probably safely assume 30-40 bytes per filename. If this
> were the case it would quickly add up to about 1.7MB in just passed
> filenames alone. Considering that this will ultimately process a directory
> with 500,000 files in it it's not hard to work out that things are going to
> go
> pear shaped in a hurry.
I still want to figure out why you were getting a crash. I tried the
following:
$ cd /tmp
$ mount -m
...
mount -f -s -b -X "c:/cygwin/bin" "/bin"
$ mkdir lots
$ # 45000 invocations of touch is slow, so do 10 files at a time...
$ for i in `seq 4500` ; do echo $i ; touch longfilename${i}0
longfilename${i}1 longfilename${i}2 longfilename${i}3 longfilename${i}4
longfilename${i}5 longfilename${i}6 longfilename${i}7 longfilename${i}8
longfilename${i}9 ; done
$ echo /cygdrive/c/cygwin/tmp/lots/*
... # Works, echo is a builtin
$ /bin/echo /cygdrive/c/cygwin/tmp/lots/*
... # Works for me, since my /bin is mounted executable
$ /cygdrive/c/cygwin/bin/echo /cygdrive/c/cygwin/tmp/lots/*
bash: /cygdrive/c/cygwin/bin/echo: Argument list too long
Hmm, I got a reasonable error message instead of a crash. I'll keep
playing with it, to throw more data at the command line, to see if the
amount of data contributes to a crash. Since echo is a built-in, you
should be able to do "echo rsync --progress -rtv
192.168.0.1::mydirectory/* c:\localcopy | wc" as an indication of how many
bytes were being attempted on the command line.
- --
Life is short - so eat dessert first!
Eric Blake [EMAIL PROTECTED]
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