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From: "Serhei Makarov" <me@serhei.io>
To: "Daire Byrne" <daire@dneg.com>, systemtap <systemtap@sourceware.org>
Subject: Re: newer kernel+systemtap & nfs.fop.open
Date: Fri, 01 Apr 2022 10:55:54 -0400	[thread overview]
Message-ID: <6a4c5961-df38-40d6-9491-1f5a587a3dbf@www.fastmail.com> (raw)
In-Reply-To: <CAPt2mGO9ethiAZXZyOt9oOv++sQK_=9Vo0AH+KApLncNsk-e+g@mail.gmail.com>



On Fri, Apr 1, 2022, at 8:26 AM, Daire Byrne via Systemtap wrote:
> Hi,
>
> Is anyone able to point me in the right direction or is there a better
> forum for asking these kinds of questions?
Hi, thank you for reporting this.
IRC oftc.net #systemtap may also be a good venue if you're
interested in partial answers quickly over full answers
at an unknown time.

Unfortunately since the kernel may change the same tapsets
can yield different results until they're fixed to match the
newer kernel too. They are generally coded to use
multiple fallbacks, so if only part of the information is in the same
place the d_name() function would yield just the name
instead of "<unknown>".

In this case the last commit
to tapsets/linux/dentry.stp was in 2020
so it looks like we may have some catching up to the kernel
to do. I'll investigate more (i.e. delve into kernel git history)
and get back to you.

  parent reply	other threads:[~2022-04-01 14:56 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-03-10 19:58 Daire Byrne
2022-04-01 12:26 ` Daire Byrne
2022-04-01 14:05   ` David Smith
2022-04-01 14:55   ` Serhei Makarov [this message]
2022-04-01 20:13     ` Serhei Makarov
2022-04-04 11:21       ` Daire Byrne
2022-04-04 12:28         ` Daire Byrne

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