From: Michael Jeanson via lttng-dev <lttng-dev@lists.lttng.org>
To: Mohammad Kavousi <kavousi@u.northwestern.edu>
Cc: lttng-dev@lists.lttng.org, Yan Chen <ychen@northwestern.edu>,
Xutong Chen <XutongChen2021@u.northwestern.edu>
Subject: Re: [lttng-dev] LTTng Support for Mount Namespace
Date: Mon, 18 Jan 2021 13:18:41 -0500 [thread overview]
Message-ID: <8a51f342-99e8-d4b3-f164-4a55d7ef6254@efficios.com> (raw)
In-Reply-To: <CAK7B4KfTzaK8ysqoEnWAbsF2fm_E8cMgPx2e0jV9tuASXM=vyQ@mail.gmail.com>
On 2021-01-12 15 h 30, Mohammad Kavousi wrote:
> Before, I was installing using the ppa repository. Based on your
> instructions, I made lttng using the source code in a totally new
> environment, having the mount.h under '/lib/modules/$(uname -r)/build/fs'.
>
> I removed the "ifneq" and "endif" statements for 'Makefile' and
> 'Kbuild.common' which were surrounding "mnt_ns_dep". lttng was installed
> successfully and the kernel trace session started, but I'm still getting
> the same error.
Make sure you delete 'ccflags-y += -DLTTNG_MNT_NS_MISSING_HEADER' from
Kbuild.common, this is what disables the mount namespace support when
the modules are built.
>
> As a hint, in the build process for lttng-modules, I found messages such
> as "./fs/ext4/*.h not found". Is that part of the problem? Meaning, is
> enabling the mnt context filesystem-specific?
No this is related to the probe that enables ext4 specific tracepoints.
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prev parent reply other threads:[~2021-01-18 18:18 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-01-06 15:50 [lttng-dev] LTTng Support for Mount Namespace Mohammad Kavousi via lttng-dev
2021-01-06 17:02 ` Michael Jeanson via lttng-dev
2021-01-09 14:03 ` Mohammad Kavousi via lttng-dev
2021-01-12 15:05 ` Michael Jeanson via lttng-dev
2021-01-12 17:29 ` Mohammad Kavousi via lttng-dev
2021-01-12 18:51 ` Michael Jeanson via lttng-dev
2021-01-12 20:30 ` Mohammad Kavousi via lttng-dev
2021-01-18 18:18 ` Michael Jeanson via lttng-dev [this message]
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