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author | Corinna Vinschen <corinna@vinschen.de> | 2009-08-08 20:24:54 +0000 |
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committer | Corinna Vinschen <corinna@vinschen.de> | 2009-08-08 20:24:54 +0000 |
commit | 7be107ce24f935a4523c616c3d1f39dfeaf1e167 (patch) | |
tree | 998a31c77f52ca3c1e17f202da073a53d2cb963d /winsup/cygwin/dtable.cc | |
parent | 75bf04114e2b734052d4635175522150c3fb1872 (diff) | |
download | cygnal-7be107ce24f935a4523c616c3d1f39dfeaf1e167.tar.gz cygnal-7be107ce24f935a4523c616c3d1f39dfeaf1e167.tar.bz2 cygnal-7be107ce24f935a4523c616c3d1f39dfeaf1e167.zip |
* dtable.cc (dtable::init_std_file_from_handle): Fix comment to
document change in the Windows 7 workaround.
* wincap.cc (wincapc::init): Don't set has_console_handle_problem
to false on 32 bit systems.
Diffstat (limited to 'winsup/cygwin/dtable.cc')
-rw-r--r-- | winsup/cygwin/dtable.cc | 30 |
1 files changed, 12 insertions, 18 deletions
diff --git a/winsup/cygwin/dtable.cc b/winsup/cygwin/dtable.cc index aa4c6e7f6..e7943c4c6 100644 --- a/winsup/cygwin/dtable.cc +++ b/winsup/cygwin/dtable.cc @@ -360,26 +360,20 @@ dtable::init_std_file_from_handle (int fd, HANDLE handle) else access |= GENERIC_WRITE; /* Should be rdwr for stderr but not sure that's possible for some versions of handles */ - /* FIXME: Workaround Windows 7 64 bit issue. If the parent process of + /* FIXME: Workaround Windows 7 issue. If the parent process of the process tree closes the original handles to the console window, strange problems occur when starting child processes later on if - stdio redirection is used. How to reproduce: - - shell script foo: - - exec 2>foo.log - FOO=$( uname -n | cat ) - echo $FOO - - start from cmd with `bash foo'. The result is that the cat process - will be started but dies before Cygwin strace output can be generated - and $FOO stays empty. The strace output shows that bash tries - multiple times to start cat, but none of the invocations of cat will - ever show up in the strace output. - - Remove the `exec 2>' or remove the cat call and the script will work. - Start bash interactively, then start the script manually, and the - script will work. + stdio redirection is used. + + CV 2009-08-08: It looks like this problem has been fixed only + half-heartedly in RTM. Unfortunately the new implementation + has still a problem which now also occurs on the 32 bit release + of Windows 7. It's still not quite clear what happens but it's + easily reproducible. Just start X via the start menu entry. + This opens an xterm window with a shell. Exit from the shell, + and you get a Windows error box reporting a crash in the + Console Window Host application (conhost.exe) due to an access + violation. This needs further investigation but the workaround not to close the handles will have a marginal hit of three extra handles per |