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Message-ID: <ZQAf9ArWfRkY/yPR@xhacker>
Date:   Tue, 12 Sep 2023 16:23:16 +0800
From:   Jisheng Zhang <jszhang@...nel.org>
To:     Uwe Kleine-König <u.kleine-koenig@...gutronix.de>
Cc:     Giuseppe Cavallaro <peppe.cavallaro@...com>,
        Alexandre Torgue <alexandre.torgue@...s.st.com>,
        Jose Abreu <joabreu@...opsys.com>,
        "David S . Miller" <davem@...emloft.net>,
        Eric Dumazet <edumazet@...gle.com>,
        Jakub Kicinski <kuba@...nel.org>,
        Paolo Abeni <pabeni@...hat.com>,
        Maxime Coquelin <mcoquelin.stm32@...il.com>,
        Chen-Yu Tsai <wens@...e.org>,
        Jernej Skrabec <jernej.skrabec@...il.com>,
        Samuel Holland <samuel@...lland.org>, netdev@...r.kernel.org,
        linux-stm32@...md-mailman.stormreply.com,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        linux-sunxi@...ts.linux.dev, kernel@...gutronix.de
Subject: Re: [REGRESSION] [PATCH net-next v5 2/2] net: stmmac: use per-queue
 64 bit statistics where necessary

On Mon, Sep 11, 2023 at 07:11:02PM +0200, Uwe Kleine-König wrote:
> Hello,
> 
> this patch became commit 133466c3bbe171f826294161db203f7670bb30c8 and is
> part of v6.6-rc1.
> 
> On my arm/stm32mp157 based machine using NFS root this commit makes the
> following appear in the kernel log:
> 
> 	INFO: trying to register non-static key.
> 	The code is fine but needs lockdep annotation, or maybe
> 	you didn't initialize this object before use?
> 	turning off the locking correctness validator.
> 	CPU: 0 PID: 1 Comm: swapper/0 Not tainted 6.5.0-rc1-00449-g133466c3bbe1-dirty #21

Hi,

Which kernel version are you using? The latest linus tree? But why here
say 6.5.0-rc1?

Thanks
> 	Hardware name: STM32 (Device Tree Support)
> 	 unwind_backtrace from show_stack+0x18/0x1c
> 	 show_stack from dump_stack_lvl+0x60/0x90
> 	 dump_stack_lvl from register_lock_class+0x98c/0x99c
> 	 register_lock_class from __lock_acquire+0x74/0x293c
> 	 __lock_acquire from lock_acquire+0x134/0x398
> 	 lock_acquire from stmmac_get_stats64+0x2ac/0x2fc
> 	 stmmac_get_stats64 from dev_get_stats+0x44/0x130
> 	 dev_get_stats from rtnl_fill_stats+0x38/0x120
> 	 rtnl_fill_stats from rtnl_fill_ifinfo+0x834/0x17f4
> 	 rtnl_fill_ifinfo from rtmsg_ifinfo_build_skb+0xc0/0x144
> 	 rtmsg_ifinfo_build_skb from rtmsg_ifinfo+0x50/0x88
> 	 rtmsg_ifinfo from __dev_notify_flags+0xc0/0xec
> 	 __dev_notify_flags from dev_change_flags+0x50/0x5c
> 	 dev_change_flags from ip_auto_config+0x2f4/0x1260
> 	 ip_auto_config from do_one_initcall+0x70/0x35c
> 	 do_one_initcall from kernel_init_freeable+0x2ac/0x308
> 	 kernel_init_freeable from kernel_init+0x1c/0x138
> 	 kernel_init from ret_from_fork+0x14/0x2c
> 	Exception stack(0xe0815fb0 to 0xe0815ff8)
> 	5fa0:                                     00000000 00000000 00000000 00000000
> 	5fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
> 	5fe0: 00000000 00000000 00000000 00000000 00000013 00000000
> 	dwc2 49000000.usb-otg: new device is high-speed
> 
> I didn't try understand this problem, it's too close to quitting time
> :-)
> 
> Best regards
> Uwe
> 
> -- 
> Pengutronix e.K.                           | Uwe Kleine-König            |
> Industrial Linux Solutions                 | https://www.pengutronix.de/ |


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