Re: [PATCH 0/9] Open loaders and interpreters with new creds during exec

[David Howells <dhowells@redhat.com>]

David Howells <dhowells@redhat.com> wrote:

> So:

I reran these tests by hand.

>  (*) fstatfs02 and fstatfs02_64 failed in the unpatched kernel.

Works when I run the test manually under the unpatched kernel.  Looking back at
the saved stdout, I see:

fstatfs02    2  TFAIL  :  unexpected error - 38 : Function not implemented - expected 14

so it may have been run on a filesystem that doesn't support this, but I'm not
sure what.

>  (*) sched_getaffinity01

Works fine now with no modules loaded in the patched kernel.  Not sure what
the problem was.

> and proc01 failed in the patched kernel.

I remember now...  I killed this during the original run since it seemed to be
endlessly redoing:

read(10, "\0\0\0\0\0\0\0\6\0\0\0\0\0\0\0\6\0\0\0\0\0\0\0\6\0\0\0\0\0\0\0\6"..., 1024) = 1024

reading /proc/pid/task/tid/pagemap, but it can actually complete if left alone;
it just takes ages - it has one 64-bit entry per potential PTE[*] in a
process's VM space - and on a 64-bit machine that's a *lot* (~140 quadrillion
entries?).

>  (*) su01 failed in both kernels, but differently.

Ah, yes.  su01 failed in the original run with 126 because the "expect"
program wasn't installed.  I install the rpm as soon as I saw it.  I should've
restarted, I suppose.

Now it fails with exit 1 under both kernels because the su01_s1 expect script
reports:

	YOU NEED TO SET ENVIROMENT VARIABLE PASSWD. 

so that test is faulty.

David

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