From: "Arnd Bergmann" <arnd@arndb.de>
To: "kernel test robot" <oliver.sang@intel.com>,
"Arnd Bergmann" <arnd@kernel.org>
Cc: oe-lkp@lists.linux.dev, "kernel test robot" <lkp@intel.com>,
linux-kernel@vger.kernel.org, linux-mm@kvack.org, x86@kernel.org,
"Thomas Gleixner" <tglx@linutronix.de>,
"Ingo Molnar" <mingo@redhat.com>,
"Borislav Petkov" <bp@alien8.de>,
"Dave Hansen" <dave.hansen@linux.intel.com>,
"H. Peter Anvin" <hpa@zytor.com>,
"Linus Torvalds" <torvalds@linux-foundation.org>,
"Andy Shevchenko" <andy@kernel.org>,
"Matthew Wilcox" <willy@infradead.org>
Subject: Re: [PATCH v2 07/11] x86: drop SWIOTLB and PHYS_ADDR_T_64BIT for PAE
Date: Sun, 22 Dec 2024 22:19:39 +0100 [thread overview]
Message-ID: <0866384c-990f-40b2-8815-2525f9323453@app.fastmail.com> (raw)
In-Reply-To: <202412201005.77fb063-lkp@intel.com>
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
prev parent reply other threads:[~2024-12-22 21:20 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20241210144945.2325330-8-arnd@kernel.org>
2024-12-20 2:52 ` kernel test robot
2024-12-22 21:19 ` Arnd Bergmann [this message]
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