Hello Paul, On 8/7/19 3:45 AM, Paul Wise wrote: > It changed in Linux v5.3-rc3 commit 315c69261dd3 from > splitting after template expansion to splitting beforehand. Thanks. Patch applied. Cheers, Michael > --- > man5/core.5 | 14 ++++++++++++++ > 1 file changed, 14 insertions(+) > > diff --git a/man5/core.5 b/man5/core.5 > index d3efca3f8..ddc0352b8 100644 > --- a/man5/core.5 > +++ b/man5/core.5 > @@ -267,6 +267,20 @@ file. > If the first character of this file is a pipe symbol (\fB|\fP), > then the remainder of the line is interpreted as the command-line for > a user-space program (or script) that is to be executed. > +.PP > +.\" 315c69261dd3fa12dbc830d4fa00d1fad98d3b03 > +Since kernel 5.3.0, the pipe template is split on spaces into an > +argument list before the template parameters are expanded. > +In earlier kernels the template parameters are expanded first and > +the resulting string is split on spaces into an argument list. > +This means that in earlier kernels executable names added by the > +%e and %E template parameters could get split into multiple arguments. > +So the core dump handler needs to put the executable names as the last > +argument and ensure it joins all parts of the executable name using spaces. > +Executable names with multiple spaces in them are not correctly represented > +in earlier kernels so the core dump handler needs to use mechanisms to find > +the executable name. > +.PP > Instead of being written to a disk file, the core dump is given as > standard input to the program. > Note the following points: > -- Michael Kerrisk Linux man-pages maintainer; http://www.kernel.org/doc/man-pages/ Linux/UNIX System Programming Training: http://man7.org/training/
