From: Borislav Petkov <bp@alien8.de>
To: Nathan Chancellor <nathan@kernel.org>
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 16:43:44 +0200 [thread overview]
Message-ID: <20230810144344.GLZNT3oM6MLVdzGlyd@fat_crate.local> (raw)
In-Reply-To: <20230810134056.GA130730@dev-arch.thelio-3990X>
On Thu, Aug 10, 2023 at 06:40:56AM -0700, Nathan Chancellor wrote:
> 6.5.0-rc5-00039-g138bcddb86d8 (nathan@dev-arch.thelio-3990X) (x86_64-linux-gcc (GCC) 13.2.0, GNU ld (GNU Binutils) 2.41) #1 SMP PREEMPT_DYNAMIC Wed Aug 9 17:34:43 MST 2023
Mine:
Linux version 6.5.0-rc5+ (root@vh) (gcc (Debian 10.2.1-3) 10.2.1 20201224, GNU ld (GNU Binutils for Debian) 2.40) #1 SMP PREEMPT_DYNAMIC Thu Aug 10 16:13:54 CEST 2023
...
[ 0.083541] Speculative Return Stack Overflow: Mitigation: safe RET
> Guest kernel string:
>
> 6.5.0-rc5 (nathan@dev-arch.thelio-3990X) (ClangBuiltLinux clang version 16.0.6 (https://github.com/llvm/llvm-project 7cbf1a2591520c2491aa35339f227775f4d3adf6), GNU ld (GNU Binutils) 2.41.50.20230809) #1 SMP PREEMPT_DYNAMIC Wed Aug 9 16:54:33 MST 2023
>
Mine:
[ 0.000000] Linux version 6.5.0-rc5 (root@vh) (Debian clang version 14.0.6, GNU ld (GNU Binutils for Debian) 2.40) #1 SMP PREEMPT_DYNAMIC Thu Aug 10 13:22:30 CEST 2023
Guest and host are up and running.
There's something else missing.
Your host gcc is 13, maybe I should update...
--
Regards/Gruss,
Boris.
https://people.kernel.org/tglx/notes-about-netiquette
next prev parent reply other threads:[~2023-08-10 14:44 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 [this message]
2023-08-10 15:07 ` Nathan Chancellor
2023-08-10 15:14 ` Borislav Petkov
2023-08-10 15:48 ` Nathan Chancellor
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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