Re: Multithreaded coredump patch where?

Arjan van de Ven (arjanv@redhat.com)
17 Dec 2002 13:08:16 +0100


--=-JMzQM3TGDyeS5MzvqFRD
Content-Type: text/plain
Content-Transfer-Encoding: quoted-printable

On Tue, 2002-12-17 at 12:05, Roberto Fichera wrote:=20
> At 13.21 16/12/02 -0800, mgross wrote:
>=20
> >I haven't rebased the patches I posted back in June for a while now.
> >
> >Attached is the patch I posted for the 2.4.18 vanilla kernel. Its a bit
> >controversial, but it seems to work for a number of folks. Let me know =
if
> >you have any troubles re-basing it.
>=20
> Only one hunk failed on include/asm-ia64/elf.h but fixed by hand.
> Why do you say a bit controversial ?
The design has theoretical (but probably in practice not trivial to
trigger) deadlocks; by design it prevents processes that are sleeping
from running, regardless whether those processes are in kernel space or
not. If they are in kernel space, they can accidentally be holding a
semaphore that something in the core dumping path will need to get (

--=-JMzQM3TGDyeS5MzvqFRD
Content-Type: application/pgp-signature; name=signature.asc
Content-Description: This is a digitally signed message part

-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.0.7 (GNU/Linux)

iD8DBQA9/xOwxULwo51rQBIRAt8zAKCFMfugTpDqKJFHO/JFlDPRCuJEdACdG09+
WldHS2mESk0RiAfrNOgpsUM=
=P4Zl
-----END PGP SIGNATURE-----

--=-JMzQM3TGDyeS5MzvqFRD--
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/