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Message-ID: <fd1c1767-0029-58d2-3878-5bc1a85b8e2c@molgen.mpg.de> Date: Tue, 18 Jan 2022 18:01:06 +0100 From: Paul Menzel <pmenzel@...gen.mpg.de> To: Keith Busch <kbusch@...nel.org> Cc: Jens Axboe <axboe@...nel.dk>, Christoph Hellwig <hch@...radead.org>, Sagi Grimberg <sagi@...mberg.me>, linux-nvme@...ts.infradead.org, iommu@...ts.linux-foundation.org, LKML <linux-kernel@...r.kernel.org>, Jörg Rödel <joro@...tes.org>, Suravee Suthikulpanit <suravee.suthikulpanit@....com> Subject: Re: nvme: IO_PAGE_FAULT logged with Intel SSDPEKKF512G8 Dear Keith, Thank you for your quick response. Am 18.01.22 um 17:53 schrieb Keith Busch: > On Tue, Jan 18, 2022 at 03:32:45PM +0100, Paul Menzel wrote: >> On a Dell OptiPlex 5055 with an Intel SSDPEKKF512G8, Linux 5.10.82 reported >> an IO_PAGE_FAULT error. This is the first and only time this has happened. >> >> $ dmesg --level=err >> [ 4.194306] nvme 0000:01:00.0: AMD-Vi: Event logged [IO_PAGE_FAULT domain=0x000c address=0xffffc080 flags=0x0050] >> [ 4.206970] nvme 0000:01:00.0: AMD-Vi: Event logged [IO_PAGE_FAULT domain=0x000c address=0xffffc000 flags=0x0050] >> [ 7.327820] kfd kfd: VERDE not supported in kfd >> $ lspci -nn -s 01:00.0 >> 01:00.0 Non-Volatile memory controller [0108]: Intel Corporation SSD Pro 7600p/760p/E 6100p Series [8086:f1a6] (rev 03) > > I think it's a bug with the iommu implementation. That would surprise me, but I am adding Jörg and Suravee to the recipient list. Last time, I saw an IO_PAGE_FAULT, it was a bug in the amdgpu driver. > If it causes problems, you can typically work around it with kernel > parameter "iommu=soft". I have not noticed any problems yet. Kind regards, Paul PS: No idea, if useful, but I include the content of `/proc/iomem`: $ sudo more /proc/iomem 00000000-00000fff : Reserved 00001000-00087fff : System RAM 00088000-00088fff : Reserved 00089000-0009efff : System RAM 0009f000-000bffff : Reserved 000a0000-000bffff : PCI Bus 0000:00 000c0000-000c3fff : PCI Bus 0000:00 000c4000-000c7fff : PCI Bus 0000:00 000c8000-000cbfff : PCI Bus 0000:00 000cc000-000cffff : PCI Bus 0000:00 000d0000-000d3fff : PCI Bus 0000:00 000d4000-000d7fff : PCI Bus 0000:00 000d8000-000dbfff : PCI Bus 0000:00 000dc000-000dffff : PCI Bus 0000:00 000e0000-000e3fff : PCI Bus 0000:00 000e4000-000e7fff : PCI Bus 0000:00 000e8000-000ebfff : PCI Bus 0000:00 000ec000-000effff : PCI Bus 0000:00 000f0000-000fffff : System ROM 00100000-09cfffff : System RAM 05000000-05e03316 : Kernel code 06000000-063a8fff : Kernel rodata 06400000-06762eff : Kernel data 06d31000-06ffffff : Kernel bss 09d00000-09e6ffff : Reserved 09e70000-7afb5fff : System RAM 7afb6000-7afb6fff : Reserved 7afb7000-7afbbfff : System RAM 7afbc000-7afbcfff : Reserved 7afbd000-dadbefff : System RAM dadbf000-dafbefff : Unknown E820 type dafbf000-dcfbefff : Reserved dcfbf000-defbefff : ACPI Non-volatile Storage defbf000-deffefff : ACPI Tables defff000-deffffff : System RAM df000000-dfffffff : Reserved e0000000-f7ffffff : PCI Bus 0000:00 e0000000-efffffff : PCI Bus 0000:06 e0000000-efffffff : 0000:06:00.0 f0000000-f00fffff : PCI Bus 0000:02 f0000000-f00fffff : PCI Bus 0000:03 f0000000-f00fffff : PCI Bus 0000:04 f0000000-f000ffff : 0000:04:00.0 f0000000-f000ffff : tg3 f0010000-f001ffff : 0000:04:00.0 f0010000-f001ffff : tg3 f0020000-f002ffff : 0000:04:00.0 f0020000-f002ffff : tg3 f0100000-f01fffff : PCI Bus 0000:08 f0100000-f0107fff : 0000:08:00.3 f0100000-f0107fff : ICH HD audio f0108000-f0108fff : 0000:08:00.2 f0108000-f0108fff : ahci f0200000-f04fffff : PCI Bus 0000:07 f0200000-f02fffff : 0000:07:00.3 f0200000-f02fffff : xhci-hcd f0300000-f03fffff : 0000:07:00.2 f0400000-f0401fff : 0000:07:00.2 f0500000-f05fffff : PCI Bus 0000:06 f0500000-f053ffff : 0000:06:00.0 f0540000-f0543fff : 0000:06:00.1 f0540000-f0543fff : ICH HD audio f0560000-f057ffff : 0000:06:00.0 f0600000-f06fffff : PCI Bus 0000:02 f0600000-f061ffff : 0000:02:00.1 f0600000-f061ffff : ahci f0620000-f0627fff : 0000:02:00.0 f0620000-f0627fff : xhci-hcd f0680000-f06fffff : 0000:02:00.1 f0700000-f07fffff : PCI Bus 0000:01 f0700000-f0703fff : 0000:01:00.0 f0700000-f0703fff : nvme f8000000-fbffffff : PCI MMCONFIG 0000 [bus 00-3f] f8000000-fbffffff : Reserved fc000000-feafffff : PCI Bus 0000:00 fc000000-fc07ffff : amd_iommu fdf00000-fdffffff : pnp 00:00 fec00000-fec00fff : Reserved fec00000-fec003ff : IOAPIC 0 fec01000-fec013ff : IOAPIC 1 fec10000-fec10fff : Reserved fec30000-fec30fff : AMDIF030:00 fed00000-fed003ff : HPET 0 fed00000-fed003ff : PNP0103:00 fed40000-fed44fff : MSFT0101:00 fed80000-fed80fff : Reserved fed81500-fed818ff : AMDI0030:00 fee00000-fee00fff : Local APIC fee00000-fee00fff : pnp 00:00 ff000000-ffffffff : Reserved ff000000-ffffffff : pnp 00:03 100000000-81effffff : System RAM 81f000000-81fffffff : RAM buffer
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