Re: [bisected] Kernel v6.9-rc3 fails to boot on a Thinkpad T60 with MITIGATION_RETHUNK=y (regression from v6.8.5)

[Linux regression tracking (Thorsten Leemhuis)]

On 13.04.24 11:19, Bagas Sanjaya wrote:
> On Sat, Apr 13, 2024 at 02:49:56AM +0200, Erhard Furtner wrote:
>> Greetings!
>>
>> With MITIGATION_RETHUNK=y selected in kernel .config v6.9-rc3 fails to boot on my Thinkpad T60. The resulting kernel stalls booting at "x86/fpu: x87 FPU will use FXSAVE":
>> [...]
>> 4461438a8405e800f90e0e40409e5f3d07eed381 is the first bad commit

There was an earlier report about this here:
https://lore.kernel.org/all/78e0d19c-b77a-4169-a80f-2eef91f4a1d6@xxxxxxxxx/

Boris there suggested: "perhaps we should make
CONFIG_MITIGATION_RETHUNK depend on !X86_32":
https://lore.kernel.org/all/20240403173059.GJZg2SUwS8MXw7CdwF@fat_crate.local/

But that did not happen afaics. Would it be wise to go down that path?

Ciao, Thorsten