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From: "pedro at palves dot net" <sourceware-bugzilla@sourceware.org>
To: gdb-prs@sourceware.org
Subject: [Bug threads/28065] FAIL:
 gdb.threads/access-mem-running-thread-exit.exp: all-stop: access mem (print
 global_var after writing again, inf=1, iter=354)
Date: Thu, 08 Jul 2021 10:45:41 +0000
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https://sourceware.org/bugzilla/show_bug.cgi?id=3D28065

--- Comment #4 from Pedro Alves <pedro at palves dot net> ---
Huh.  Unfortunately, the gdb.log doesn't show anything useful.  We'd need "=
set
debug lin-lwp 1" logs at least.

I've set the testcase running in a loop here, went past 50 iterations, and I
still get no failures.  I'll leave it running for a while longer.  This is =
on
Ubuntu 20.04.

The code to look at is linux_proc_xfer_memory_partial /
linux_proc_xfer_memory_partial_pid.=20=20

Could it be that opening /proc/pid/task/lwp/mem is failing with errno other
than EACCES or ENOENT on openSUSE's kernel?

To debug this, I'd insert abort() calls in all TARGET_XFER_EOF failure path=
s in
linux_proc_xfer_memory_partial, and then set the testcase running in a loop=
.=20
Then debug the core dump.

--=20
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