Dale Lobb via Cygwin wrote:
Since upgrading to the latest version of Cygwin a few weeks ago on a server
I manage, I've been experiencing an issue with fork errors. The Cygwin
installation had not been updated for almost a year before that.
The issue happens every time a script is invoked that purges files from some
temporary directories, but never in the same place in the script. The script
uses multiple calls to find -exec to remove files over 10 days old from the
directories. Here is a typical error. Sometime the issue will assert after
just a few tens of files deleted, sometimes after hundreds or thousands of
files have been deleted:
removed '/cygdrive/d/.../obfuscated.datedata.txt'
1 [main] find 20066 dofork: child -1 - forked process 4068 died
unexpectedly, retry 0, exit code 0xC0000142, errno 11
find: cannot fork: Resource temporarily unavailable
It also happens randomly at other times. I've seen the bash shell itself
fail on the invocation of a mintty. I've seen it happen on all sorts of
interactive commands entered from bash.
Today, as a test, I updated all the installed Cygwin components. One of the
post installation scripts failed, so I re-exec'd it:
$ ./postinstall/0p_update-info-dir.dash
Rebuilding info directory
2 [main] dash 2059 dofork: child -1 - forked process 7676 died
unexpectedly, retry 0, exit code 0xC0000142, errno 11
./postinstall/0p_update-info-dir.dash: 22: Cannot fork
A second re-exec then worked fine.
I've tried reinstalling all the components, and I've tried rebaseall.
Is there anything else I can try, or troubleshooting steps to take?
Try the FAQ, specifically
https://cygwin.com/faq.html#faq.using.fixing-fork-failures
Pay attention to the subtleties of running rebaseall, e.g. make sure no Cygwin
processes (background server processes or whatnot) are running. When the FAQ gets
to talking about running setup.exe for this situation, it means close any open
Cygwin shell windows and manually run the Cygwin Setup program, just taking its
defaults all the way through; you needn't install anything it suggests at this
time. The object is to get to Setup's end where it runs a full rebase.
Speculation: The specific exit code 0xC0000142 may or may not have something to do
with Windows error 142, which is ERROR_BUSY_DRIVE. I cannot help further on this.
..mark
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