From: Nathan Chancellor <nathan@kernel.org>
To: Borislav Petkov <bp@alien8.de>
Cc: x86@kernel.org, linux-kernel@vger.kernel.org, llvm@lists.linux.dev
Subject: Re: Hang when booting guest kernels compiled with clang after SRSO mitigations
Date: Thu, 10 Aug 2023 08:48:31 -0700 [thread overview]
Message-ID: <20230810154831.GA38495@dev-arch.thelio-3990X> (raw)
In-Reply-To: <20230810151410.GNZNT+wn/cLBWiU6dO@fat_crate.local>
On Thu, Aug 10, 2023 at 05:14:10PM +0200, Borislav Petkov wrote:
> On Thu, Aug 10, 2023 at 08:07:06AM -0700, Nathan Chancellor wrote:
> > [ 2.408527] microcode: microcode updated early to new patch_level=0x0830107a
>
> Hm, a wild guess: can you boot the *host* with "dis_ucode_ldr" on the
> kernel cmdline and see if it still reproduces?
It does.
> Also, can you bisect rc5..master to see which exact patch is causing
> this?
Sure thing. I at least isolated it to the SRSO merge, so I will just
bisect that to see the exact commit that causes this.
Cheers,
Nathan
next prev parent reply other threads:[~2023-08-10 15:48 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-08-10 1:33 Nathan Chancellor
2023-08-10 8:10 ` Borislav Petkov
2023-08-10 9:08 ` Borislav Petkov
2023-08-10 9:15 ` Borislav Petkov
2023-08-10 10:16 ` Nathan Chancellor
2023-08-10 12:51 ` Borislav Petkov
2023-08-10 13:27 ` Nathan Chancellor
2023-08-10 13:32 ` Borislav Petkov
2023-08-10 13:40 ` Nathan Chancellor
2023-08-10 14:43 ` Borislav Petkov
2023-08-10 15:07 ` Nathan Chancellor
2023-08-10 15:14 ` Borislav Petkov
2023-08-10 15:48 ` Nathan Chancellor [this message]
2023-08-10 16:14 ` Nathan Chancellor
2023-08-11 10:14 ` Borislav Petkov
2023-08-11 14:09 ` Nathan Chancellor
2023-08-11 16:03 ` Sean Christopherson
2023-08-11 16:12 ` Borislav Petkov
2023-08-12 0:42 ` Nick Desaulniers
2023-08-12 13:46 ` Borislav Petkov
2023-08-12 14:31 ` Nathan Chancellor
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