[OpenAFS-devel] reproducible problem during cache flush

[Neulinger, Nathan]

Behavior is different though... The kdump output no longer indicates
cache as full, or waiting for drain.

-- Nathan

------------------------------------------------------------
Nathan Neulinger                       EMail:  nneul@umr.edu
University of Missouri - Rolla         Phone: (573) 341-4841
Computing Services                       Fax: (573) 341-4216


> -----Original Message-----
> From: Neulinger, Nathan=20
> Sent: Tuesday, July 30, 2002 1:34 PM
> Cc: openafs-devel@openafs.org
> Subject: RE: [OpenAFS-devel] reproducible problem during cache flush=20
>=20
>=20
> Applying this (with hand fixes to get it to apply on the=20
> trunk + protos
> branches, which have some locking+dcache changes in that=20
> vicinity) does
> NOT appear to fix the problem for me.
>=20
> Were you able to reproduce failure+success with this?
>=20
> -- Nathan
>=20
> ------------------------------------------------------------
> Nathan Neulinger                       EMail:  nneul@umr.edu
> University of Missouri - Rolla         Phone: (573) 341-4841
> Computing Services                       Fax: (573) 341-4216
>=20
>=20
> > -----Original Message-----
> > From: chas williams [mailto:chas@cmf.nrl.navy.mil]=20
> > Sent: Tuesday, July 30, 2002 1:15 PM
> > Cc: Nickolai Zeldovich; openafs-devel@openafs.org
> > Subject: Re: [OpenAFS-devel] reproducible problem during=20
> cache flush=20
> >=20
> >=20
> > >if we remove the AFS_VM_RDWR_ENV from particular places in=20
> > afs_vnop_read.c
> > >we should get prefetch on linux as well?
> >=20
> > something like the following:
> >=20
> > Index: src/afs/VNOPS/afs_vnop_read.c
> > =
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
> > RCS file: /cvs/openafs/src/afs/VNOPS/afs_vnop_read.c,v
> > retrieving revision 1.5.4.1
> > diff -u -d -b -w -r1.5.4.1 afs_vnop_read.c
> > --- src/afs/VNOPS/afs_vnop_read.c	2002/07/10 20:04:36	1.5.4.1
> > +++ src/afs/VNOPS/afs_vnop_read.c	2002/07/30 18:13:50
> > @@ -263,7 +263,7 @@
> >       * to it in case we need to do a prefetch.
> >       */
> >      if (tdc) {
> > -#ifndef	AFS_VM_RDWR_ENV
> > +#if !defined(AFS_VM_RDWR_ENV) || defined(AFS_LINUX22_ENV)
> >  	/* try to queue prefetch, if needed */
> >  	if (!(tdc->flags & DFNextStarted) && !noLock) {
> >  	    afs_PrefetchChunk(avc, tdc, acred, &treq);
> > @@ -446,7 +446,7 @@
> >  	    hadd32(afs_indexCounter, 1);
> > =20
> >  	    if (!noLock) {
> > -#ifndef	AFS_VM_RDWR_ENV
> > +#if !defined(AFS_VM_RDWR_ENV) || defined(AFS_LINUX22_ENV)
> >  		if (!(code =3D afs_InitReq(&treq, acred))&&=20
> > (!(tdc->flags & DFNextStarted)))
> >  		    afs_PrefetchChunk(avc, tdc, acred, &treq);
> >  #endif
> > Index: src/afs/VNOPS/afs_vnop_write.c
> > =
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
> > RCS file: /cvs/openafs/src/afs/VNOPS/afs_vnop_write.c,v
> > retrieving revision 1.8.2.7
> > diff -u -d -b -w -r1.8.2.7 afs_vnop_write.c
> > --- src/afs/VNOPS/afs_vnop_write.c	2002/07/22 23:14:54	1.8.2.7
> > +++ src/afs/VNOPS/afs_vnop_write.c	2002/07/30 18:13:50
> > @@ -283,7 +283,7 @@
> >  	if (filePos > avc->m.Length)
> >  	    avc->m.Length =3D filePos;
> >  #endif
> > -#ifndef AFS_VM_RDWR_ENV
> > +#if !defined(AFS_VM_RDWR_ENV) || defined(AFS_LINUX22_ENV)
> >  	/*
> >  	 * If write is implemented via VM, afs_DoPartialWrite()=20
> > is called from
> >  	 * the high-level write op.
> > @@ -580,7 +580,7 @@
> >  	}
> >  #endif
> >  	osi_UFSClose(tfile);
> > -#ifndef	AFS_VM_RDWR_ENV
> > +#if !defined(AFS_VM_RDWR_ENV) || defined(AFS_LINUX22_ENV)
> >  	/*
> >  	 * If write is implemented via VM, afs_DoPartialWrite()=20
> > is called from
> >  	 * the high-level write op.
> > _______________________________________________
> > OpenAFS-devel mailing list
> > OpenAFS-devel@openafs.org
> > https://lists.openafs.org/mailman/listinfo/openafs-devel
> >=20
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>=20