I've been meaning to disable those anyway, but it's a shame these don't seem to work well
with TRAMP. Now lockups that need "kill -SIGUSR2" are pretty rare (though they do
happen occasionally).
And...I just had a -SIGUSR2 lockup. :). Here's a backtrace:
Debugger entered--entering a function:
* tramp-signal-hook-function(quit nil)
accept-process-output(#<process compilation> 0 nil t)
tramp-accept-process-output(#<process compilation> 0)
tramp-interrupt-process(#<process compilation> nil)
interrupt-process(#<process compilation>)
compilation-start("git be bic all-devrel-local" compilation-mode nil nil)
apply(compilation-start ("git be bic all-devrel-local" compilation-mode nil nil))
recompile(nil)
funcall-interactively(recompile nil)
call-interactively(recompile nil nil)
command-execute(recompile)
The debug log ends with this:
11:11:36.384026 tramp-send-command (6) # \readlink --canonicalize-missing /net/dgreene-dev/<redacted> 2>/dev/null; echo tramp_exit_status $?
11:15:42.087353 tramp-accept-process-output (1) # Quit: "Quit", ""
11:15:42.087652 tramp-accept-process-output (1) # Quit: "Quit", ""
11:15:42.087766 tramp-accept-process-output (1) # Quit: "Quit", ""
11:15:42.087879 tramp-accept-process-output (1) # Quit: "Quit", ""
11:15:42.088020 tramp-accept-process-output (1) # Quit: "Quit", ""
11:15:42.088130 tramp-accept-process-output (1) # Quit: "Quit", ""
11:15:42.088243 tramp-accept-process-output (1) # Quit: "Quit", ""
Followed by hundreds of thousands of the "Quit" message.
David