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From: "liaichun at huawei dot com" <sourceware-bugzilla@sourceware.org>
To: glibc-bugs@sourceware.org
Subject: [Bug nss/26038] [core_dump] call getpwnam_r() appears core_dump
Date: Tue, 09 Jun 2020 09:43:16 +0000
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https://sourceware.org/bugzilla/show_bug.cgi?id=3D26038

--- Comment #12 from liaichun <liaichun at huawei dot com> ---
(In reply to Andreas Schwab from comment #11)
> Most likely you have some memory corruption.  Try valgrind.

Thanks, I will check it.=20
And there is also a message ,i tried add atomic_read_barrier() before nip
assigned, it hasn't appeared in 2 weeks.If nothing changes, it can appear 4=
 or
5 times in 2 weeks.

--------------------------------------
libc_hidden_proto (DB_LOOKUP_FCT)
  else
    {
+     atomic_read_barrier();
      fct.l =3D start_fct;
      nip =3D startp;
#ifdef PTR_DEMANGLE
      PTR_DEMANGLE (fct.l);
      PTR_DEMANGLE (nip);
#endif
      no_more =3D nip =3D=3D (service_user *) -1l;
    }

--=20
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