From: Gunter Grau <gunter.grau@philips.com>
To: xenomai@xenomai.org
Subject: Issue with linux threaded level triggered interrupts
Date: Thu, 10 Feb 2022 16:33:12 +0100 [thread overview]
Message-ID: <20220210153313.2229625-1-gunter.grau@philips.com> (raw)
Hi,
during our development on imx6 with kernel 5.4 and Xenomai 3.1 we discovered complete system stalls when using phylib with phy irqs level triggerd. This irq is connected on the imx-gpio.
Investigation showed that it seems to be an issue in the ipipe irq end function for level interrupts. Please review the patch proposal.
I am not sure if just calling unmask_irq() is ok here since this functin also does some locking. The other way would be to just call additionally the irq_state_clr_masked(desc) in the level end function itself.
The patch applies on ipipe/master in ipipe-arm.
It looks like this is an issue in all ipipe patches, but is triggered
by the introduction of a check in unmask_irq().
Thanks in advance,
Gunter Grau
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next reply other threads:[~2022-02-10 15:33 UTC|newest]
Thread overview: 28+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-02-10 15:33 Gunter Grau [this message]
2022-02-10 15:33 ` [PATCH] ipipe: Fix ipipe level irq end Gunter Grau
2022-02-10 15:37 ` Greg Gallagher
2022-02-10 15:53 ` Jan Kiszka
2022-02-16 21:03 ` Jan Kiszka
2022-02-17 8:48 ` Gunter Grau
2022-02-17 9:15 ` Jan Kiszka
2022-02-17 12:16 ` Grau, Gunter
2022-02-17 12:36 ` Jan Kiszka
2022-02-17 14:11 ` Greg Gallagher
2022-02-17 15:12 ` Jan Kiszka
2022-02-17 15:13 ` Greg Gallagher
2022-08-11 13:05 ` Grau, Gunter
2022-08-15 6:19 ` Jan Kiszka
2022-08-15 9:13 ` Grau, Gunter
2022-08-15 9:34 ` Philippe Gerum
2022-08-15 10:27 ` [[I-PIPE PATCH]] ipipe: noarch: Fix ipipe level end interrupt Gunter Grau
2022-08-15 11:56 ` Jan Kiszka
2022-08-15 12:31 ` Grau, Gunter
2022-08-15 13:54 ` Jan Kiszka
2022-08-15 15:24 ` Grau, Gunter
2022-08-16 6:23 ` Jan Kiszka
2022-08-17 16:09 ` Grau, Gunter
2022-09-02 7:48 ` Bezdeka, Florian
2022-02-17 14:05 ` [PATCH] ipipe: Fix ipipe level irq end Jan Kiszka
2022-02-17 14:08 ` Jan Kiszka
2022-02-17 14:12 ` Gunter Grau
2022-02-10 15:39 ` Issue with linux threaded level triggered interrupts Greg Gallagher
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