From: Kees Cook <keescook@chromium.org>
To: shuah <shuah@kernel.org>
Cc: Cristian Marussi <cristian.marussi@arm.com>,
Naresh Kamboju <naresh.kamboju@linaro.org>,
"open list:KERNEL SELFTEST FRAMEWORK"
<linux-kselftest@vger.kernel.org>,
Anders Roxell <anders.roxell@linaro.org>,
lkft-triage@lists.linaro.org,
open list <linux-kernel@vger.kernel.org>,
ankita@in.ibm.com, Will Deacon <will@kernel.org>,
ardb@kernel.org, "Guohanjun (Hanjun Guo)" <guohanjun@huawei.com>
Subject: Re: selftests: Linux Kernel Dump Test Module output
Date: Thu, 20 Feb 2020 16:16:01 -0800 [thread overview]
Message-ID: <202002201610.2B149A6D@keescook> (raw)
In-Reply-To: <31b066c2-d1c9-1592-48cd-bccb4b3a624a@kernel.org>
On Wed, Feb 19, 2020 at 09:16:03AM -0700, shuah wrote:
> On 2/17/20 8:36 AM, Cristian Marussi wrote:
> > Hi
> >
> > n 17/02/2020 11:09, Naresh Kamboju wrote:
> > > The selftest lkdtm test failed on x86_64 and arm64.
> > > am I missing any pre-requisite?
> > >
> > > Boot log:
> > > [ 3.297812] lkdtm: No crash points registered, enable through debugfs
> > >
> >
> > from your logs I cannot deduce anything useful, but in our CI I've got similar issues
> > since the 10/12th of Feb...
> >
> > TAP version 13
> > 1..71
> > # selftests: lkdtm: PANIC.sh
> > # Cannot find /sys/kernel/debug/provoke-crash/DIRECT (missing CONFIG_LKDTM?)
> > not ok 1 selftests: lkdtm: PANIC.sh # SKIP
> > # selftests: lkdtm: BUG.sh
> > # Cannot find /sys/kernel/debug/provoke-crash/DIRECT (missing CONFIG_LKDTM?)
> >
> > so I suppose this and a bunch of other (probably new) tests are simply
> > missing a bit of CONFIGs... (but I have still to look into this properly)
> > (not sure if this also is your case either...)
> >
> > Regards
> >
> > Cristian
> >
>
> Hi Kees,
>
> Any ideas on what this is about? Missing config or something else?
In the first case, I'm not sure what's happening -- the logs don't seem
to show anything, but the lkdtm should be available (from the boot log).
In the second case, yes, it looks like missing CONFIG_LKDTM (the test
even has a "config" file). Either CONFIG_LKDTM=y or CONFIG_LKDTM=m will
work (the test running will attempt to load the lkdtm module if it's
missing).
A final option is that either the debug filesystem isn't mounted, or is
mounted somewhere "non-standard"? (I'd expect a lot of things to fail...)
-Kees
--
Kees Cook
next prev parent reply other threads:[~2020-02-21 0:16 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-02-17 11:09 selftests: Linux Kernel Dump Test Module output Naresh Kamboju
2020-02-17 15:36 ` Cristian Marussi
2020-02-19 16:16 ` shuah
2020-02-21 0:16 ` Kees Cook [this message]
2020-02-25 19:31 ` Kees Cook
2020-02-26 11:53 ` Cristian Marussi
2020-02-26 18:02 ` Naresh Kamboju
2020-02-26 19:01 ` Kees Cook
2020-02-26 18:49 ` Kees Cook
2020-02-25 19:31 ` Kees Cook
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