Need advice debugging a cygwin/git hang

Need advice debugging a cygwin/git hang

[Kevin Layer]

I have scripts to fetch and rebase a list of 50+ repos.  I run this on
a 16-core AMD Windows Server 2008 R2 machine.  In about 1 out of 10
times, I get a "git fetch origin" that uses 100% of a core until
killed.

It just happened again a few minutes ago:

$ ps aux
      PID    PPID    PGID     WINPID   TTY     UID    STIME COMMAND
     2720       1    2720       2720  ?       11003 09:56:55 /usr/bin/bash
     4704       1    4704       4704  ?       11003 10:12:15 /usr/bin/mintty
     2712    4704    2712       3108  pty0    11003 10:12:15 /usr/bin/bash
     5344    5248    5248       2508  ?       11003 10:07:37 /usr/bin/bash
     3116       1    3116       3116  ?       11003 09:56:54 /usr/bin/bash
     5432    1312    5248       6004  ?       11003 10:07:40 /usr/bin/ssh <defunct>
     2028    2712    2028       3220  pty0    11003 10:18:48 /usr/bin/ps
     4692    3688    4692       3600  ?       11003 09:56:21 /usr/bin/rsync
     3688       1    3688       3688  ?       11003 09:56:21 /usr/bin/cygrunsrv
     2468    1312    5248       4844  ?       11003 10:07:42 /usr/lib/git-core/git <defunct>
     1312    5344    5248       1196  ?       11003 10:07:39 /usr/bin/git
     5248       1    5248       5248  ?       11003 10:07:37 /usr/bin/bash
     1580       1    1580       1580  ?       11003 09:56:57 /usr/bin/bash
     1412       1    1412       1412  ?       11003 09:56:56 /usr/bin/bash

I tried strace, but it got a "Segmentation fault" on both the above
git processes.

What can I do to debug this?

Thanks.

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