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From: "Ahmed S. Darwish" <darwi@linutronix.de>
To: kernel test robot <oliver.sang@intel.com>
Cc: oe-lkp@lists.linux.dev, lkp@intel.com,
	linux-kernel@vger.kernel.org, Borislav Petkov <bp@alien8.de>,
	Ingo Molnar <mingo@redhat.com>,
	Dave Hansen <dave.hansen@linux.intel.com>,
	Thomas Gleixner <tglx@linutronix.de>,
	Andrew Cooper <andrew.cooper3@citrix.com>,
	"H. Peter Anvin" <hpa@zytor.com>,
	David Woodhouse <dwmw2@infradead.org>,
	Sean Christopherson <seanjc@google.com>,
	Peter Zijlstra <peterz@infradead.org>,
	Sohil Mehta <sohil.mehta@intel.com>,
	John Ogness <john.ogness@linutronix.de>,
	x86@kernel.org, x86-cpuid@lists.linux.dev
Subject: Re: [PATCH v4 29/34] x86/amd_nb: Trickle down 'struct cpuinfo_x86' reference
Date: Mon, 18 Aug 2025 16:47:32 +0200	[thread overview]
Message-ID: <aKM9BH0q630ClMth@lx-t490> (raw)
In-Reply-To: <202508180405.3e28d0dd-lkp@intel.com>

On Mon, 18 Aug 2025, kernel test robot wrote:
>
> [    1.202568][    T1] BUG: using smp_processor_id() in preemptible [00000000] code: swapper/0/1
> [ 1.202670][ T1] caller is init_amd_nbs (arch/x86/kernel/amd_nb.c:319)
>

Hmm... This is triggered by:

    static __init int init_amd_nbs(void)
    {
	struct cpuinfo_x86 *c = this_cpu_ptr(&cpu_info);
	...
    }

Since this is all __init code anyway, for the next iteration I'll use
'boot_cpu_data' instead of per-CPU cpu_info access.

Thanks!

--
Ahmed S. Darwish
Linutronix GmbH

  reply	other threads:[~2025-08-18 14:47 UTC|newest]

Thread overview: 55+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-08-15  7:01 [PATCH v4 00/34] x86: Introduce a centralized CPUID data model Ahmed S. Darwish
2025-08-15  7:01 ` [PATCH v4 01/34] x86/cpuid: Remove transitional <asm/cpuid.h> header Ahmed S. Darwish
2025-08-15 10:11   ` [tip: x86/urgent] " tip-bot2 for Ahmed S. Darwish
2025-08-15 15:22   ` tip-bot2 for Ahmed S. Darwish
2025-08-15  7:01 ` [PATCH v4 02/34] ASoC: Intel: avs: Include CPUID header at file scope Ahmed S. Darwish
2025-08-18 14:56   ` Borislav Petkov
2025-08-18 15:14     ` Ahmed S. Darwish
2025-08-15  7:01 ` [PATCH v4 03/34] treewide: Explicitly include the x86 CPUID headers Ahmed S. Darwish
2025-08-15  7:01 ` [PATCH v4 04/34] x86/cpu: <asm/processor.h>: Do not include the CPUID API header Ahmed S. Darwish
2025-08-15  7:01 ` [PATCH v4 05/34] x86/cpuid: Rename cpuid_leaf()/cpuid_subleaf() APIs Ahmed S. Darwish
2025-08-15  7:01 ` [PATCH v4 06/34] x86/cpuid: Introduce <asm/cpuid/leaf_types.h> Ahmed S. Darwish
2025-08-25 14:18   ` Borislav Petkov
2025-08-25 14:56     ` Ahmed S. Darwish
2025-08-15  7:02 ` [PATCH v4 07/34] x86/cpuid: Introduce a centralized CPUID data model Ahmed S. Darwish
2025-08-15 15:34   ` Sean Christopherson
2025-08-18 13:49     ` Ahmed S. Darwish
2025-08-18 18:44       ` Sean Christopherson
2025-08-18 19:54         ` Ahmed S. Darwish
2025-08-18 21:29           ` Sean Christopherson
2025-08-19 13:10             ` Ahmed S. Darwish
2025-08-15  7:02 ` [PATCH v4 08/34] x86/cpuid: Introduce a centralized CPUID parser Ahmed S. Darwish
2025-08-15  7:02 ` [PATCH v4 09/34] x86/cpu: Use parsed CPUID(0x0) Ahmed S. Darwish
2025-08-15  7:02 ` [PATCH v4 10/34] x86/lib: Add CPUID(0x1) CPU family and model calculation Ahmed S. Darwish
2025-08-15  7:02 ` [PATCH v4 11/34] x86/cpu: Use parsed CPUID(0x1) Ahmed S. Darwish
2025-08-15  7:02 ` [PATCH v4 12/34] x86/cpuid: Parse CPUID(0x80000000) Ahmed S. Darwish
2025-08-15  7:02 ` [PATCH v4 13/34] x86/cpu: Use parsed CPUID(0x80000000) Ahmed S. Darwish
2025-08-15  7:02 ` [PATCH v4 14/34] x86/cpuid: Introduce a CPUID leaf x86 vendor table Ahmed S. Darwish
2025-08-15  7:02 ` [PATCH v4 15/34] x86/cpuid: Introduce CPUID parser debugfs interface Ahmed S. Darwish
2025-08-15  7:02 ` [PATCH v4 16/34] x86/cpuid: Parse CPUID(0x2) Ahmed S. Darwish
2025-08-15  7:02 ` [PATCH v4 17/34] x86/cpuid: Warn once on invalid CPUID(0x2) iteration count Ahmed S. Darwish
2025-08-15  7:02 ` [PATCH v4 18/34] x86/cpuid: Introduce parsed CPUID(0x2) API Ahmed S. Darwish
2025-08-15  7:02 ` [PATCH v4 19/34] x86/cpu: Use parsed CPUID(0x2) Ahmed S. Darwish
2025-08-15  7:02 ` [PATCH v4 20/34] x86/cacheinfo: " Ahmed S. Darwish
2025-08-15  7:02 ` [PATCH v4 21/34] x86/cpuid: Remove direct CPUID(0x2) query API Ahmed S. Darwish
2025-08-15  7:02 ` [PATCH v4 22/34] x86/cpuid: Parse 'deterministic cache parameters' CPUID leaves Ahmed S. Darwish
2025-08-15  7:02 ` [PATCH v4 23/34] x86/cacheinfo: Pass a 'struct cpuinfo_x86' refrence to CPUID(0x4) code Ahmed S. Darwish
2025-08-15  7:02 ` [PATCH v4 24/34] x86/cacheinfo: Use parsed CPUID(0x4) Ahmed S. Darwish
2025-08-15  7:02 ` [PATCH v4 25/34] x86/cacheinfo: Use parsed CPUID(0x8000001d) Ahmed S. Darwish
2025-08-15  7:02 ` [PATCH v4 26/34] x86/cpuid: Parse CPUID(0x80000005) and CPUID(0x80000006) Ahmed S. Darwish
2025-08-15  7:02 ` [PATCH v4 27/34] x86/cacheinfo: Use auto-generated data types Ahmed S. Darwish
2025-08-15  7:02 ` [PATCH v4 28/34] x86/cacheinfo: Use parsed CPUID(0x80000005) and CPUID(0x80000006) Ahmed S. Darwish
2025-08-15 15:25   ` Dave Hansen
2025-08-18 15:38     ` Ahmed S. Darwish
2025-08-18 15:52     ` David Woodhouse
2025-08-18 17:00       ` Ahmed S. Darwish
2025-08-15  7:02 ` [PATCH v4 29/34] x86/amd_nb: Trickle down 'struct cpuinfo_x86' reference Ahmed S. Darwish
2025-08-18  2:54   ` kernel test robot
2025-08-18 14:47     ` Ahmed S. Darwish [this message]
2025-08-15  7:02 ` [PATCH v4 30/34] x86/cpuid: Use parsed CPUID(0x80000006) Ahmed S. Darwish
2025-08-15  7:02 ` [PATCH v4 31/34] x86/cpu: Rescan CPUID table after PSN disable Ahmed S. Darwish
2025-08-15  7:02 ` [PATCH v4 32/34] x86/cpu: Rescan CPUID table after unlocking full CPUID range Ahmed S. Darwish
2025-08-15  7:02 ` [PATCH v4 33/34] x86/cpuid: Parse CPUID(0x16) Ahmed S. Darwish
2025-08-15  7:02 ` [PATCH v4 34/34] x86/tsc: Use parsed CPUID(0x16) Ahmed S. Darwish
2025-08-16  9:59 ` [PATCH v4 00/34] x86: Introduce a centralized CPUID data model David Woodhouse
2025-08-18 16:37   ` Ahmed S. Darwish

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