From: "André Pribil" <a.pribil@beck-ipc.com>
To: Stephen Hemminger <stephen@networkplumber.org>
Cc: "netdev@vger.kernel.org" <netdev@vger.kernel.org>
Subject: RE: Deadlock with restart_syscall()
Date: Mon, 30 Jul 2018 10:08:46 +0200 [thread overview]
Message-ID: <681500CE65202E47A192754B01DAB4673BE3D882C7@SDE12.beckipc.net> (raw)
In-Reply-To: <20180727085351.36210a12@xeon-e3>
> Don't do control operations from RT processes!
> There can be cases of priority inversion where RT process is waiting
> for
> something that requires a kthread to complete the operation.
I have RT throttling activated and I thought it would kick-in and give
the non-RT threads some time to execute.
Therefore, I would expect this control operation to terminate sooner or later,
even if there's a kthread involved and a priority inversion occurs here,
but this seems not to be the case.
Andre
prev parent reply other threads:[~2018-07-30 9:42 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-07-16 7:31 Deadlock with restart_syscall() André Pribil
2018-07-27 9:31 ` André Pribil
2018-07-27 15:53 ` Stephen Hemminger
2018-07-30 8:08 ` André Pribil [this message]
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