[OpenAFS-devel] reproducible afsd/libafs lockup

[Neulinger, Nathan]

Appears this test causes it:

troot-srvtst07(132)> fs checks ; ./fsstress -v -n 8 -p 1 -d
/umr/u/nneul/fsstress/
All servers are running.
seed =3D 1016547366
0/0: dwrite - no filename
0/1: chown . 7536 0
0/2: creat f0 x:0 0 0
0/3: symlink l1 0
0/4: fdatasync - no filename
0/5: symlink l2 110
0/6: truncate - no filename
0/7: creat f3 x:0 110 0

I'm trying to track down a more specific trigger.

-- 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: Friday, March 22, 2002 9:15 AM
> To: openafs-devel@openafs.org
> Subject: RE: [OpenAFS-devel] reproducible afsd/libafs lockup
>=20
>=20
> Interesting... I grabbed fsstress from kolya's web page and started
> running it on this station. The instant I start running it against an
> afs directory that client loses contact with the server that the test
> afs dir is located on. Running fs checks regains connection.=20
> And that is
> with a -p 1 test. Haven't even tried the -p # for larger #.
>=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: Neulinger, Nathan=20
> > Sent: Friday, March 22, 2002 8:51 AM
> > To: openafs-devel@openafs.org
> > Subject: [OpenAFS-devel] reproducible afsd/libafs lockup
> >=20
> >=20
> > Have not dug into this much yet, but with recent (and maybe old, not
> > sure since I don't have a machine I can hose at the moment that is
> > running old code) builds, I can trigger a real quick complete=20
> > cm lockup
> > by doing this in a high level directory in my cell. (i.e. a dir with
> > alot of stuff under it).
> >=20
> > find . -follow -type f -print | xargs -P 8 -n 30 wc
> >=20
> > This one is a different symptom and situation from the other problem
> > I've been talking about. In that problem, you can still talk to the
> > cache manager with cmdebug and fs. With this one, the cm is totally
> > non-responsive.=20
> >=20
> > -- Nathan
> >=20
> > ------------------------------------------------------------
> > Nathan Neulinger                       EMail:  nneul@umr.edu
> > University of Missouri - Rolla         Phone: (573) 341-4841
> > Computing Services                       Fax: (573) 341-4216
> > _______________________________________________
> > OpenAFS-devel mailing list
> > OpenAFS-devel@openafs.org
> > https://lists.openafs.org/mailman/listinfo/openafs-devel
> >=20
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>=20