[PATCH] fhandler_pipe: add sanity limit to handle loops

[Jeremy Drake]

On Fri, 24 Dec 2021, Ken Brown wrote:

> On 12/24/2021 2:42 PM, Jeremy Drake wrote:
> > It does seem to happen much more often on Windows on ARM64 (so much so
> > that at first I thought it was an issue with their emulation).  With this
> > patch I have not seen the issue again.
>
> So can you test your diagnosis by removing your patch and adding an assertion?

Done:
:: Starting core system upgrade...
 there is nothing to do
:: Starting full system upgrade...
 there is nothing to do
assertion "phi->NumberOfHandles < n_handle" failed: file
"../../.././winsup/cygwin/fhandler_pipe.cc", line 1275, function: void*
fhandler_pipe::get_query_hdl_per_process(WCHAR*, OBJECT_NAME_INFORMATION*)
Aborted