linux-kernel - Re: [Regression][BISECTED] kernel boot hang after 19898ce9cf8a ("wifi: iwlwifi: split 22000.c into multiple files")

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Date:   Mon, 10 Jul 2023 01:54:23 +0000
From:   "Zhang, Rui" <rui.zhang@...el.com>
To:     "Torvalds, Linus" <torvalds@...ux-foundation.org>,
        "johannes@...solutions.net" <johannes@...solutions.net>,
        "regressions@...ts.linux.dev" <regressions@...ts.linux.dev>
CC:     "bagasdotme@...il.com" <bagasdotme@...il.com>,
        "davem@...emloft.net" <davem@...emloft.net>,
        "netdev@...r.kernel.org" <netdev@...r.kernel.org>,
        "kvalo@...nel.org" <kvalo@...nel.org>,
        "Baruch, Yaara" <yaara.baruch@...el.com>,
        "Greenman, Gregory" <gregory.greenman@...el.com>,
        "linux-wireless@...r.kernel.org" <linux-wireless@...r.kernel.org>,
        "Ben Ami, Golan" <golan.ben.ami@...el.com>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "edumazet@...gle.com" <edumazet@...gle.com>,
        "Sisodiya, Mukesh" <mukesh.sisodiya@...el.com>,
        "kuba@...nel.org" <kuba@...nel.org>,
        "pabeni@...hat.com" <pabeni@...hat.com>
Subject: Re: [Regression][BISECTED] kernel boot hang after 19898ce9cf8a
 ("wifi: iwlwifi: split 22000.c into multiple files")

On Sun, 2023-07-09 at 20:07 +0200, Johannes Berg wrote:
> On Sun, 2023-07-09 at 09:31 -0700, Linus Torvalds wrote:
> > On Fri, 7 Jul 2023 at 03:55, Linux regression tracking (Thorsten
> > Leemhuis) <regressions@...mhuis.info> wrote:
> > > 
> > > [CCing the regression list, netdev, the net maintainers, and
> > > Linus;
> > > Johannes and Kalle as well, but just for the record, they afaik
> > > are
> > > unavailable]
> > 
> > So I will release rc1 with this issue, but remind me - if it hasn't
> > had any traction next week and the radio silence continues, I'll
> > just
> > revert it all.
> 
> Sorry. I got back home a few hours ago (for few days anyway) and I
> think
> I already know what the issue is. I'll send a fix to try in a few
> minutes, was just trying to collect all the reported-by etc.
> 
> There's clearly a separate bug in the init failure path, but the
> reason
> it fails in the first place is a mismatch between different changes.
> 
> 
I have tested Johannes' patch and it fixes the problem on my side.

Thanks,
rui