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Sun, 22 Dec 2024 16:20:00 -0500 (EST) X-Mailer: MessagingEngine.com Webmail Interface MIME-Version: 1.0 Date: Sun, 22 Dec 2024 22:19:39 +0100 From: "Arnd Bergmann" To: "kernel test robot" , "Arnd Bergmann" Cc: oe-lkp@lists.linux.dev, "kernel test robot" , linux-kernel@vger.kernel.org, linux-mm@kvack.org, x86@kernel.org, "Thomas Gleixner" , "Ingo Molnar" , "Borislav Petkov" , "Dave Hansen" , "H. Peter Anvin" , "Linus Torvalds" , "Andy Shevchenko" , "Matthew Wilcox" Message-Id: <0866384c-990f-40b2-8815-2525f9323453@app.fastmail.com> In-Reply-To: <202412201005.77fb063-lkp@intel.com> References: <202412201005.77fb063-lkp@intel.com> Subject: Re: [PATCH v2 07/11] x86: drop SWIOTLB and PHYS_ADDR_T_64BIT for PAE Content-Type: text/plain Content-Transfer-Encoding: 7bit X-Stat-Signature: ej3hfjs911e8daa9hx7zmi7xa8k6pgr5 X-Rspam-User: X-Rspamd-Queue-Id: C4EA340010 X-Rspamd-Server: rspam08 X-HE-Tag: 1734902368-257092 X-HE-Meta: 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 0ZJJlkd6 k7kQ47mbwQizA9PiaIS4WwyLAW5s0fYic/mw8OdfsFE+Vrq5OyQyDKXiXfNpDpm3BTa7G3hkbkwRc1FUexcPvtCzdKTrWbMTNTmw/K7v8MR1Ide/8/qG7Bx6xD8Z8bEfyS5M32noRn8hrFrFxmoEbkWh37GzcEyjpCExgi3bXrQot5S9Hl9CAMmhHcmYwP5vlwmdRH2dTahkfHFcD3PnxzkyS7wdPjXh094Uwf4SlpHFq5PycvOFi4eta+WBxIDO9y53ugJoRj8MM3bzT4UVyJNueFA== X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: On Fri, Dec 20, 2024, at 03:52, kernel test robot wrote: > > config: i386-randconfig-001-20241213 > compiler: gcc-12 > test machine: qemu-system-i386 -enable-kvm -cpu SandyBridge -smp 2 -m 4G > > (please refer to attached dmesg/kmsg for entire log/backtrace) > I haven't been able to figure this out, apparently something goes wrong on a KVM guest that has more than 32-bit of addressing (RAM+MMIO) when it uses a 32-bit phys_addr_t. I changed the patch now to only drop SWIOTLB, not PHYS_ADDR_T_64BIT. Arnd