Re: WARNING: CPU: 1 PID: 83 at arch/x86/kernel/cpu/sgx/main.c:446 ksgxd+0x1b7/0x1d0

From: Paul Menzel
Date: Tue Aug 23 2022 - 13:18:05 EST

Dear Dave,


Am 20.08.22 um 08:13 schrieb Paul Menzel:

Am 19.08.22 um 20:28 schrieb Dave Hansen:
On 8/19/22 09:02, Paul Menzel wrote:
On the Dell XPS 13 9370, Linux 5.18.16 prints the warning below:

```
[    0.000000] Linux version 5.18.0-4-amd64 (debian-kernel@xxxxxxxxxxxxxxxx) (gcc-11 (Debian 11.3.0-5) 11.3.0, GNU ld (GNU Binutils for Debian) 2.38.90.20220713) #1 SMP PREEMPT_DYNAMIC Debian 5.18.16-1 (2022-08-10)
[    0.000000] Command line: BOOT_IMAGE=/vmlinuz-5.18.0-4-amd64 root=UUID=56f398e0-1e25-4fda-aa9f-611dece4b333 ro quiet
[…]
[    0.000000] DMI: Dell Inc. XPS 13 9370/0RMYH9, BIOS 1.21.0 07/06/2022
[…]
[    0.235418] sgx: EPC section 0x40200000-0x45f7ffff

Would you be able to send the entire dmesg, along with:

The log message are attached to the first message, where I missed to carbon-copy linux-sgx@ [1].

    cat /proc/iomem # (as root)
and
    cpuid -1 --raw

I am going to provide that next week. (Side note, Intel might have some Dell XPS 9370 test machines in some QA lab.)

Please find both outputs at the end of the file.

I'm suspecting either a BIOS problem.  Reinette (cc'd) also thought this
might be a case of the SGX initialization getting a bit too far along
when it should have been disabled.

We had some bugs where we didn't stop fast enough after spitting out the
"SGX Launch Control is locked..." errors.

Let’s hope it’s something known to you.


Kind regards,

Paul


[1]: https://lore.kernel.org/lkml/ce0b4d26-3a6e-7c5a-5f66-44cba05f9f35@xxxxxxxxxxxxx/


PS:

$ sudo cat /proc/iomem
[sudo] password for molgenit:
00000000-00000fff : Reserved
00001000-00057fff : System RAM
00058000-00058fff : Reserved
00059000-0009dfff : System RAM
0009e000-000fffff : Reserved
00000000-00000000 : PCI Bus 0000:00
00000000-00000000 : PCI Bus 0000:00
00000000-00000000 : PCI Bus 0000:00
00000000-00000000 : PCI Bus 0000:00
00000000-00000000 : PCI Bus 0000:00
00000000-00000000 : PCI Bus 0000:00
00000000-00000000 : PCI Bus 0000:00
00000000-00000000 : PCI Bus 0000:00
000a0000-000dffff : PCI Bus 0000:00
000c0000-000dffff : 0000:00:02.0
000f0000-000fffff : System ROM
00100000-2d6c4fff : System RAM
2d6c5000-2d6c5fff : ACPI Non-volatile Storage
2d6c6000-2d6c6fff : Reserved
2d6c7000-3b6acfff : System RAM
3b6ad000-3b720fff : Reserved
3b721000-3ecf1fff : System RAM
3ecf2000-3f0b1fff : Reserved
3f0b2000-3f0fefff : ACPI Tables
3f0ff000-3f7b6fff : ACPI Non-volatile Storage
3f798000-3f798fff : USBC000:00
3f7b7000-3ff25fff : Reserved
3ff26000-3fffefff : Unknown E820 type
3ffff000-3fffffff : System RAM
40000000-47ffffff : Reserved
40200000-45f7ffff : INT0E0C:00
48000000-48dfffff : System RAM
48e00000-4f7fffff : Reserved
4b800000-4f7fffff : Graphics Stolen Memory
4f800000-dfffffff : PCI Bus 0000:00
50000000-5fffffff : 0000:00:02.0
60000000-a9ffffff : PCI Bus 0000:03
ac000000-da0fffff : PCI Bus 0000:03
db000000-dbffffff : 0000:00:02.0
dc000000-dc0fffff : PCI Bus 0000:6e
dc000000-dc003fff : 0000:6e:00.0
dc000000-dc003fff : nvme
dc100000-dc1fffff : PCI Bus 0000:02
dc100000-dc101fff : 0000:02:00.0
dc100000-dc101fff : iwlwifi
dc200000-dc2fffff : PCI Bus 0000:01
dc200000-dc200fff : 0000:01:00.0
dc200000-dc200fff : rtsx_pci
dc300000-dc30ffff : 0000:00:1f.3
dc310000-dc31ffff : 0000:00:14.0
dc310000-dc31ffff : xhci-hcd
dc318070-dc31846f : intel_xhci_usb_sw
dc320000-dc327fff : 0000:00:04.0
dc320000-dc327fff : proc_thermal
dc328000-dc32bfff : 0000:00:1f.3
dc328000-dc32bfff : ICH HD audio
dc32c000-dc32ffff : 0000:00:1f.2
dc330000-dc3300ff : 0000:00:1f.4
dc331000-dc331fff : 0000:00:16.3
dc332000-dc332fff : 0000:00:16.0
dc332000-dc332fff : mei_me
dc333000-dc333fff : 0000:00:15.1
dc333000-dc3331ff : lpss_dev
dc333000-dc3331ff : i2c_designware.1 lpss_dev
dc333200-dc3332ff : lpss_priv
dc333800-dc333fff : idma64.1
dc333800-dc333fff : idma64.1 idma64.1
dc334000-dc334fff : 0000:00:15.0
dc334000-dc3341ff : lpss_dev
dc334000-dc3341ff : i2c_designware.0 lpss_dev
dc334200-dc3342ff : lpss_priv
dc334800-dc334fff : idma64.0
dc334800-dc334fff : idma64.0 idma64.0
dc335000-dc335fff : 0000:00:14.2
dc335000-dc335fff : Intel PCH thermal driver
dffe0000-dfffffff : pnp 00:05
e0000000-efffffff : PCI MMCONFIG 0000 [bus 00-ff]
e0000000-efffffff : Reserved
e0000000-efffffff : pnp 00:05
fd000000-fe7fffff : PCI Bus 0000:00
fd000000-fdabffff : pnp 00:06
fdac0000-fdacffff : INT344B:00
fdac0000-fdacffff : INT344B:00 INT344B:00
fdad0000-fdadffff : pnp 00:06
fdae0000-fdaeffff : INT344B:00
fdae0000-fdaeffff : INT344B:00 INT344B:00
fdaf0000-fdafffff : INT344B:00
fdaf0000-fdafffff : INT344B:00 INT344B:00
fdb00000-fdffffff : pnp 00:06
fdc6000c-fdc6000f : iTCO_wdt
fdc6000c-fdc6000f : iTCO_wdt iTCO_wdt
fe000000-fe010fff : Reserved
fe028000-fe028fff : pnp 00:08
fe029000-fe029fff : pnp 00:08
fe036000-fe03bfff : pnp 00:06
fe03d000-fe3fffff : pnp 00:06
fe410000-fe7fffff : pnp 00:06
fec00000-fec00fff : Reserved
fec00000-fec003ff : IOAPIC 0
fed00000-fed003ff : HPET 0
fed00000-fed003ff : PNP0103:00
fed10000-fed17fff : pnp 00:05
fed18000-fed18fff : pnp 00:05
fed19000-fed19fff : pnp 00:05
fed20000-fed3ffff : pnp 00:05
fed40000-fed44fff : MSFT0101:00
fed40000-fed44fff : MSFT0101:00 MSFT0101:00
fed45000-fed8ffff : pnp 00:05
fed90000-fed90fff : dmar0
fed91000-fed91fff : dmar1
fee00000-fee00fff : Local APIC
fee00000-fee00fff : Reserved
ff000000-ffffffff : Reserved
ff000000-ffffffff : INT0800:00
ff000000-ffffffff : pnp 00:05
100000000-2ae7fffff : System RAM
190c00000-191801987 : Kernel code
191a00000-19225ffff : Kernel rodata
192400000-1926b57bf : Kernel data
192d2b000-1931fffff : Kernel bss
2ae800000-2afffffff : RAM buffer

$ sudo cpuid -1 --raw
CPU:
0x00000000 0x00: eax=0x00000016 ebx=0x756e6547 ecx=0x6c65746e edx=0x49656e69
0x00000001 0x00: eax=0x000806ea ebx=0x00100800 ecx=0x7ffafbff edx=0xbfebfbff
0x00000002 0x00: eax=0x76036301 ebx=0x00f0b5ff ecx=0x00000000 edx=0x00c30000
0x00000003 0x00: eax=0x00000000 ebx=0x00000000 ecx=0x00000000 edx=0x00000000
0x00000004 0x00: eax=0x1c004121 ebx=0x01c0003f ecx=0x0000003f edx=0x00000000
0x00000004 0x01: eax=0x1c004122 ebx=0x01c0003f ecx=0x0000003f edx=0x00000000
0x00000004 0x02: eax=0x1c004143 ebx=0x00c0003f ecx=0x000003ff edx=0x00000000
0x00000004 0x03: eax=0x1c03c163 ebx=0x02c0003f ecx=0x00001fff edx=0x00000006
0x00000004 0x04: eax=0x00000000 ebx=0x00000000 ecx=0x00000000 edx=0x00000000
0x00000005 0x00: eax=0x00000040 ebx=0x00000040 ecx=0x00000003 edx=0x11142120
0x00000006 0x00: eax=0x000027f7 ebx=0x00000002 ecx=0x00000009 edx=0x00000000
0x00000007 0x00: eax=0x00000000 ebx=0x029c67af ecx=0x00000000 edx=0xbc002e00
0x00000008 0x00: eax=0x00000000 ebx=0x00000000 ecx=0x00000000 edx=0x00000000
0x00000009 0x00: eax=0x00000000 ebx=0x00000000 ecx=0x00000000 edx=0x00000000
0x0000000a 0x00: eax=0x07300404 ebx=0x00000000 ecx=0x00000000 edx=0x00000603
0x0000000b 0x00: eax=0x00000001 ebx=0x00000002 ecx=0x00000100 edx=0x00000000
0x0000000b 0x01: eax=0x00000004 ebx=0x00000008 ecx=0x00000201 edx=0x00000000
0x0000000b 0x02: eax=0x00000000 ebx=0x00000000 ecx=0x00000002 edx=0x00000000
0x0000000c 0x00: eax=0x00000000 ebx=0x00000000 ecx=0x00000000 edx=0x00000000
0x0000000d 0x00: eax=0x0000001f ebx=0x00000440 ecx=0x00000440 edx=0x00000000
0x0000000d 0x01: eax=0x0000000f ebx=0x000003c0 ecx=0x00000100 edx=0x00000000
0x0000000d 0x02: eax=0x00000100 ebx=0x00000240 ecx=0x00000000 edx=0x00000000
0x0000000d 0x03: eax=0x00000040 ebx=0x000003c0 ecx=0x00000000 edx=0x00000000
0x0000000d 0x04: eax=0x00000040 ebx=0x00000400 ecx=0x00000000 edx=0x00000000
0x0000000d 0x08: eax=0x00000080 ebx=0x00000000 ecx=0x00000001 edx=0x00000000
0x0000000e 0x00: eax=0x00000000 ebx=0x00000000 ecx=0x00000000 edx=0x00000000
0x0000000f 0x00: eax=0x00000000 ebx=0x00000000 ecx=0x00000000 edx=0x00000000
0x00000010 0x00: eax=0x00000000 ebx=0x00000000 ecx=0x00000000 edx=0x00000000
0x00000011 0x00: eax=0x00000000 ebx=0x00000000 ecx=0x00000000 edx=0x00000000
0x00000012 0x00: eax=0x00000001 ebx=0x00000000 ecx=0x00000000 edx=0x0000241f
0x00000012 0x01: eax=0x00000036 ebx=0x00000000 ecx=0x0000001f edx=0x00000000
0x00000012 0x02: eax=0x40200001 ebx=0x00000000 ecx=0x05d80001 edx=0x00000000
0x00000012 0x03: eax=0x00000000 ebx=0x00000000 ecx=0x00000000 edx=0x00000000
0x00000013 0x00: eax=0x00000000 ebx=0x00000000 ecx=0x00000000 edx=0x00000000
0x00000014 0x00: eax=0x00000001 ebx=0x0000000f ecx=0x00000007 edx=0x00000000
0x00000014 0x01: eax=0x02490002 ebx=0x003f3fff ecx=0x00000000 edx=0x00000000
0x00000015 0x00: eax=0x00000002 ebx=0x0000009e ecx=0x00000000 edx=0x00000000
0x00000016 0x00: eax=0x0000076c ebx=0x00000e10 ecx=0x00000064 edx=0x00000000
0x20000000 0x00: eax=0x0000076c ebx=0x00000e10 ecx=0x00000064 edx=0x00000000
0x80000000 0x00: eax=0x80000008 ebx=0x00000000 ecx=0x00000000 edx=0x00000000
0x80000001 0x00: eax=0x00000000 ebx=0x00000000 ecx=0x00000121 edx=0x2c100800
0x80000002 0x00: eax=0x65746e49 ebx=0x2952286c ecx=0x726f4320 edx=0x4d542865
0x80000003 0x00: eax=0x35692029 ebx=0x3533382d ecx=0x43205530 edx=0x40205550
0x80000004 0x00: eax=0x372e3120 ebx=0x7a484730 ecx=0x00000000 edx=0x00000000
0x80000005 0x00: eax=0x00000000 ebx=0x00000000 ecx=0x00000000 edx=0x00000000
0x80000006 0x00: eax=0x00000000 ebx=0x00000000 ecx=0x01006040 edx=0x00000000
0x80000007 0x00: eax=0x00000000 ebx=0x00000000 ecx=0x00000000 edx=0x00000100
0x80000008 0x00: eax=0x00003027 ebx=0x00000000 ecx=0x00000000 edx=0x00000000
0x80860000 0x00: eax=0x0000076c ebx=0x00000e10 ecx=0x00000064 edx=0x00000000
0xc0000000 0x00: eax=0x0000076c ebx=0x00000e10 ecx=0x00000064 edx=0x00000000