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Date: Sat, 16 Aug 2025 07:39:42 +0200
From: Greg KH <gregkh@linuxfoundation.org>
To: Lars Wendler <polynomial-c@gmx.de>
Cc: wangzijie <wangzijie1@honor.com>,
	"stable@vger.kernel.org" <stable@vger.kernel.org>,
	Linux kernel regressions list <regressions@lists.linux.dev>
Subject: Re: [REGRESSION] [BISECTED] linux-6.6.y and linux-6.12.y: proc: use
 the same treatment to check proc_lseek as ones for proc_read_iter et.al
Message-ID: <2025081615-anew-willpower-adca@gregkh>
References: <20250815195616.64497967@chagall.paradoxon.rec>
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In-Reply-To: <20250815195616.64497967@chagall.paradoxon.rec>

On Fri, Aug 15, 2025 at 07:56:16PM +0200, Lars Wendler wrote:
> Hi,
> 
> the stable LTS linux kernels 6.6.102 and 6.12.42 have a regression
> regarding network interface monitoring with xosview and gkrellm. Both
> programs no longer show any network traffic with gkrellm even
> considering all network interfaces as being in down state. I haven't
> checked other LTS kernels so I cannot tell if there are more affected
> kernel branches.
> 
> I have bisected the issue to the commits
> 33c778ea0bd0fa62ff590497e72562ff90f82b13 in 6.6.102 and
> fc1072d934f687e1221d685cf1a49a5068318f34 in 6.12.42 which are both the
> same change code-wise (upstream commit
> ff7ec8dc1b646296f8d94c39339e8d3833d16c05).
> 
> Reverting these commits makes xosview and gkrellm "work" again as in
> they both show network traffic again.

Is this also an issue in 6.16.1 and 6.17-rc1?

thanks,

greg k-h