On 6/5/16 9:10 AM, Jason Vas Dias wrote:
> With a build of bash 4.3 patchlevel 42
> on a Linux x86_64 system I am getting
> warning messages on stderr when
> running a certain script like:
>"wait_for: no record of process 8278" .
> Running bash with the script as
> input under strace shows that
OK, I found one fix - you probably
won't like it, but it fixes the oroblem,
and all the test cases run in
'make test' still work - especially
'run_jobs' and 'run_lastpipe' -
the patch simply removes the error
from the FIND_CHILD macro in jobs.c,
so it noe reads ;
jobs.c @ line 2377:
#define FIND_C
The strace log shows that process 8277 is the
bash subshell that runs f() , forks to create 8278,
which forks to execve "some_executable" ;
process 8277 then eads the 8278 output on a pipe,
so it knows when the pipe is closed, amd the strace
log shows 8277 first does a wait4, which returns 8278,
b
With a build of bash 4.3 patchlevel 42
on a Linux x86_64 system I am getting
warning messages on stderr when
running a certain script like:
"wait_for: no record of process 8278" .
Running bash with the script as
input under strace shows that process 8277
does a successful wait4(-1,...) which DOE
