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[Bug record/20869] New: "record full" while target is running breaks run control


https://sourceware.org/bugzilla/show_bug.cgi?id=20869

            Bug ID: 20869
           Summary: "record full" while target is running breaks run
                    control
           Product: gdb
           Version: HEAD
            Status: NEW
          Severity: normal
          Priority: P2
         Component: record
          Assignee: unassigned at sourceware dot org
          Reporter: simon.marchi at ericsson dot com
  Target Milestone: ---

A simple test to reproduce:

$ ./gdb -nx /bin/sleep
GNU gdb (GDB) 7.12.50.20161125-git
...
Reading symbols from /bin/sleep...(no debugging symbols found)...done.
(gdb) r 123456 &
Starting program: /bin/sleep 123456
(gdb) i th
  Id   Target Id         Frame 
* 1    process 23909 "sleep" (running)

At this point, the process' state according to /proc/$pid/status is:

  State: S (sleeping)

Then, we enable record and try to interrupt:

(gdb) record
(gdb) interrupt 
(gdb) i th
  Id   Target Id         Frame 
* 1    process 23909 "sleep" (running)
(gdb) 

At this point, the process' state is:

  State: t (tracing stop)

So it seems like the inferior received the signal and stopped correctly, but
gdb missed the event or doesn't do anything about it.

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