Dear Linux folks,
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)
$ sudo ./nvme list
Node SN Model
Namespace Usage Format
FW Rev
--------------------- --------------------
---------------------------------------- ---------
-------------------------- ---------------- --------
nvme0n1 BTHH82250YQK512D SSDPEKKF512G8 NVMe INTEL
512GB 1 512.11 GB / 512.11 GB 512 B + 0 B D03N
Please find the output of `dmesg` attached.
Kind regards,
Paul
PS: Some more info:
$ lspci -tvn
-[0000:00]-+-00.0 1022:1450
+-00.2 1022:1451
+-01.0 1022:1452
+-01.1-[01]----00.0 8086:f1a6
+-01.3-[02-05]--+-00.0 1022:43bb
| +-00.1 1022:43b7
| \-00.2-[03-05]--+-00.0-[04]----00.0
14e4:1687
| \-01.0-[05]--
+-02.0 1022:1452
+-03.0 1022:1452
+-03.1-[06]--+-00.0 1002:682b
| \-00.1 1002:aab0
+-04.0 1022:1452
+-07.0 1022:1452
+-07.1-[07]--+-00.0 1022:145a
| +-00.2 1022:1456
| \-00.3 1022:145c
+-08.0 1022:1452
+-08.1-[08]--+-00.0 1022:1455
| +-00.2 1022:7901
| \-00.3 1022:1457
+-14.0 1022:790b
+-14.3 1022:790e
+-18.0 1022:1460
+-18.1 1022:1461
+-18.2 1022:1462
+-18.3 1022:1463
+-18.4 1022:1464
+-18.5 1022:1465
+-18.6 1022:1466
\-18.7 1022:1467
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. If it causes problems,
you can typically work around it with kernel parameter "iommu=soft".
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
On Tue, Jan 18, 2022 at 06:01:06PM +0100, Paul Menzel wrote:
> > > $ 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]
This was caused by a DMA read to a write-only page. Looks like a bug in
the driver or the devices firmware.
Regards,
Joerg