On 2/25/2019 3:20 PM, Corinna Vinschen wrote: > On Feb 25 11:03, Corinna Vinschen wrote: >> On Feb 25 03:21, Ken Brown wrote: >>> On 2/24/2019 9:23 PM, Ken Brown wrote: >>>> On 2/24/2019 2:52 PM, Corinna Vinschen wrote: >>>>> On Feb 24 20:09, Corinna Vinschen wrote: >>>>>> On Feb 24 19:55, Corinna Vinschen wrote: >>>>>>> On Feb 24 17:27, Ken Brown wrote: >>>>>>>> I'm seeing sporadic errors like this on 64-bit Cygwin when I first >>>>>>>> start emacs: >>>>>>>> >>>>>>>> 0 [main] emacs-X11 864 C:\cygwin64\bin\emacs-X11.exe: *** >>>>>>>> fatal error in >>>>>>>> forked process - Can't recreate shared timerfd section during fork! >>>>>>>> 0 [main] emacs 860 dofork: child 864 - died waiting for dll >>>>>>>> loading, errno 11 >>>>>>>> >>>>>>>> If I exit and restart, everything will be fine almost every time. >>>>>>> >>>>>>> I think I see where the thinko was here. Can you try this? >>>>>> >>>>>> No, better try this: >>>>>> [...] >>>>> >>>>> Even if this doesn't fully fix your problem, the patch itself is >>>>> certainly better than the former code, so I pushed it. I also >>>>> uploaded new developer snapshots to https://cygwin.com/snapshots/ >>>>> for testing. >>>> >>>> It's better, but not completely fixed. At the moment I'm testing 32-bit >>>> only, >>>> since that was the only arch on which I could produce the problem reliably. >>>> Previously I got the error every time I ran emacs. I just tried 5 times >>>> with >>>> the new snapshot and only got the error twice. >>> >>> I withdraw that statement. After further tries, it's back to happening >>> every time. >>> >>>> I'll work on this some more tomorrow and see if I can modify the emacs >>>> code so >>>> that it gives me the full error message from Cygwin. >> >> I had a late night inspiration, telling me that my timerfd >> implementation has a design flaw in terms of fork/exec timer >> sharing. I guess I should fix that first. Just ignore the >> timerfd stuff for a bit, I'm working on that. > > I pushed a patch and uploaded new developer snapshots to > https://cygwin.com/snapshots/ > > Please try.
The x86 fork problem seems to be fixed. I started emacs several times and listed directories without any failure. I did get the following, however, during one of the trials (while emacs was idle): 1 [main] emacs 246 C:\Users\kbrown\src\emacs\i686-emacs26\src\emacs.exe: *** fatal error - CreateThread failed for pipesel - 0x0<0x0>, Win32 error 8 Ken
