linux-kernel - Re: [RFC PATCH 0/5] Retire IA64/Itanium support

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Date:   Wed, 22 Feb 2023 16:52:27 -0500
From:   matoro <matoro_mailinglist_kernel@...oro.tk>
To:     John Paul Adrian Glaubitz <glaubitz@...sik.fu-berlin.de>
Cc:     Linus Torvalds <torvalds@...ux-foundation.org>,
        "Luck, Tony" <tony.luck@...el.com>,
        Al Viro <viro@...iv.linux.org.uk>,
        Ard Biesheuvel <ardb@...nel.org>, linux-kernel@...r.kernel.org,
        Jonathan Corbet <corbet@....net>,
        Arnd Bergmann <arnd@...db.de>,
        Jessica Clarke <jrtc27@...c27.com>,
        Matthew Wilcox <willy@...radead.org>,
        Marc Zyngier <maz@...nel.org>,
        Guenter Roeck <linux@...ck-us.net>, linux-ia64@...r.kernel.org
Subject: Re: [RFC PATCH 0/5] Retire IA64/Itanium support

On 2023-02-15 18:13, John Paul Adrian Glaubitz wrote:
> On Wed, 2023-02-15 at 12:08 -0800, Linus Torvalds wrote:
>> But when it's actively known to be broken and nobody has time or
>> interest to look at it, at that point the "it doesn't look any more
>> painful than other architectures" becomes kind of moot.
> 
> Let me look after it in the weekend and let's see whether we can 
> unbreak
> it. I don't think there is really a big issue. The last time we had a
> similar issue was the regression introduced by 974b9b2c68f3 which got 
> fixed
> with the simple fix in bd05220c7be3.
> 
> It's probably similarly trivial to fix the current regression.
> 
> Adrian

Just for reference, this specific bug does not seem to be universal, but 
possibly only applies to a specific configuration.  I have observed no 
problems with 6.1 on my rx 2800 i2 and just booted 6.2 with no issues.  
Please feel free to try out my kernel config here:  
https://dpaste.com/43CACUUG8.txt

A possible guess is initramfs-related, as according to your logs on the 
Debian ML the hang happens shortly after initramfs unpacking, and I do 
not use an initramfs.