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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: Mon, 25 May 2020 11:25:48 +0000
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https://sourceware.org/bugzilla/show_bug.cgi?id=3D26038

--- Comment #7 from liaichun <liaichun at huawei dot com> ---
(In reply to Andreas Schwab from comment #6)
> nip cannot be 0.  It is either a valid function address or -1.

Sorry=EF=BC=8CI haven't watched all before=EF=BC=8C=20
but it did happen fct.l is zero and nip is a valid function address .

(gdb) info local
startp_initialized =3D true
startp =3D 0x58b26143a952eb88
start_fct =3D 0x58b23416ed3e4548
nip =3D 0xffffac000b20
do_merge =3D 0
mergegrp =3D <optimized out>
mergebuf =3D 0x0
endptr =3D 0x0
fct =3D {l =3D 0x0, ptr =3D 0x0}
no_more =3D <optimized out>
err =3D <optimized out>
status =3D NSS_STATUS_UNAVAIL
nscd_status =3D <optimized out>
res =3D <optimized out>
(gdb) q

I guess this is caused by multi-threaded calls ?

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