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From: "simark at simark dot ca" <sourceware-bugzilla@sourceware.org>
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Subject: [Bug gdb/24694] FAIL: gdb.multi/multi-arch-exec.exp: first_arch=1:
 selected_thread=1: follow_exec_mode=same: continue across exec that changes
 architecture (Couldn't get registers: No such process)
Date: Tue, 01 Dec 2020 03:03:56 +0000
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https://sourceware.org/bugzilla/show_bug.cgi?id=3D24694

--- Comment #9 from Simon Marchi <simark at simark dot ca> ---
Applying this little delay should make the issue trigger all the time.  It's
using repeated usleep instead of one sleep, because incoming SIGCHLDs inter=
rupt
the sleep.


diff --git a/gdb/inf-ptrace.c b/gdb/inf-ptrace.c
index d5a062163c7..9540339a9da 100644
--- a/gdb/inf-ptrace.c
+++ b/gdb/inf-ptrace.c
@@ -308,6 +308,8 @@ inf_ptrace_target::resume (ptid_t ptid, int step, enum
gdb_signal signal)
   gdb_ptrace (request, ptid, (PTRACE_TYPE_ARG3)1, gdb_signal_to_host
(signal));
   if (errno !=3D 0)
     perror_with_name (("ptrace"));
+  for (int i =3D 0 ; i < 100; i++)
+    usleep (10000);
 }

 /* Wait for the child specified by PTID to do something.  Return the

--=20
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