From: Igor Velkov <iav@iav.lv>
To: netdev-bot+sinfo@kernel.org
Cc: "Igor Velkov" <iav@iav.lv>, "Andrew Lunn" <andrew@lunn.ch>,
"Heiner Kallweit" <hkallweit1@gmail.com>,
"Russell King" <linux@armlinux.org.uk>,
"David S. Miller" <davem@davemloft.net>,
"Eric Dumazet" <edumazet@kernel.org>,
"Jakub Kicinski" <kuba@kernel.org>,
"Paolo Abeni" <pabeni@redhat.com>,
"Maxime Chevallier" <maxime.chevallier@bootlin.com>,
"Lukas Wunner" <lukas@wunner.de>,
"Rafael J. Wysocki" <rafael.j.wysocki@intel.com>,
"Wei Fang" <wei.fang@nxp.com>,
"Niklas Söderlund" <niklas.soderlund@ragnatech.se>,
"Paul Barker" <paul@pbarker.dev>,
"Florian Fainelli" <florian.fainelli@broadcom.com>,
"Doug Berger" <opendmb@gmail.com>,
"Thangaraj Samynathan" <Thangaraj.S@microchip.com>,
"Shenwei Wang" <shenwei.wang@nxp.com>,
"Haoning Cheng" <Haoning.CHENG@cn.bosch.com>,
netdev@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
linux-rockchip@lists.infradead.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH net v5 0/4] net: phy: postpone PHY interrupts during sleep with MAC-managed PM
Date: Thu, 12 Nov 2026 01:55:16 +0200 [thread overview]
Message-ID: <20261112-phylib-v5-sinfo-reply-1@iav.lv> (raw)
In-Reply-To: <179444109487.2168702.10631162542543162252@kernel.org>
> - Whether the issue was actually triggered, or is only theoretical
Patch 4 fixes a hang seen on Helios64 (dwmac-rk, RTL8211F): in s2idle
without WoL the board hung or reset 10 of 10 times without the series.
The PHY IRQ thread stalls its CPU on an MDIO read while the GMAC clocks
are off, so that CPU never answers the NMI:
watchdog: CPU0: Watchdog detected hard LOCKUP on cpu 1
After 10 seconds, these CPUS still haven't responded to the NMI: 1
Patches 1-3 fix defects found by code inspection and Sashiko review;
they were not triggered.
next prev parent reply other threads:[~2026-11-11 23:55 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-11-11 23:48 Igor Velkov via B4 Relay
2026-11-11 23:48 ` [PATCH net v5 1/4] net: phy: move irq_suspended and irq_rerun out of the bitfield Igor Velkov via B4 Relay
2026-11-11 23:48 ` [PATCH net v5 2/4] net: phy: keep the line of a postponed PHY interrupt balanced Igor Velkov via B4 Relay
2026-11-11 23:48 ` [PATCH net v5 3/4] net: phy: stop postponing PHY interrupts when a PHY PM callback fails Igor Velkov via B4 Relay
2026-11-11 23:48 ` [PATCH net v5 4/4] net: phy: postpone PHY interrupts during sleep with MAC-managed PM Igor Velkov via B4 Relay
2026-11-11 23:51 ` [PATCH net v5 0/4] " netdev-bot+sinfo
2026-11-11 23:55 ` Igor Velkov [this message]
2026-11-11 23:53 ` Igor Velkov
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