* [Regression] [PATCH] iommu: Avoid crash in init_no_remapping_devices if iommu is NULL
@ 2020-08-31 11:03 Torsten Hilbrich
2020-09-01 2:02 ` Lu Baolu
0 siblings, 1 reply; 8+ messages in thread
From: Torsten Hilbrich @ 2020-08-31 11:03 UTC (permalink / raw)
To: Joerg Roedel; +Cc: iommu
[-- Attachment #1: Type: text/plain, Size: 4381 bytes --]
I noticed a kernel crash when trying to boot a v5.9-rc2 based kernel.
The crash reads as:
<1>[ 7.410192] BUG: kernel NULL pointer dereference, address: 0000000000000038
<1>[ 7.410196] #PF: supervisor write access in kernel mode
<1>[ 7.410199] #PF: error_code(0x0002) - not-present page
<6>[ 7.410202] PGD 0 P4D 0
<4>[ 7.410207] Oops: 0002 [#1] SMP PTI
<4>[ 7.410212] CPU: 1 PID: 1 Comm: swapper/0 Not tainted 5.9.0-devel+ #1
<4>[ 7.410215] Hardware name: LENOVO 20HGS0TW00/20HGS0TW00, BIOS N1WET46S (1.25s ) 03/30/2018
<4>[ 7.410224] RIP: 0010:intel_iommu_init+0xed0/0x1136
<4>[ 7.410229] Code: fe e9 61 02 00 00 bb f4 ff ff ff e9 57 02 00 00 48 63 d1 48 c1 e2 04 48 03 50 20 48 8b 12 48 85 d2 74 0b 48 8b 92 d0 02 00 00 <48> 89 7a 38 ff c1 e9 15 f5 ff ff 48 c7 c7 00 a5 ac a1 49 c7 c7 20
<4>[ 7.410236] RSP: 0000:ffffb14e40073dd0 EFLAGS: 00010282
<4>[ 7.410240] RAX: ffff8d0643731720 RBX: 0000000000000000 RCX: 0000000000000000
<4>[ 7.410244] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffffffffffff
<4>[ 7.410247] RBP: ffffb14e40073e90 R08: 0000000000000001 R09: ffff8d0643803700
<4>[ 7.410250] R10: ffff8d0642620000 R11: 0000000000000016 R12: 000000000000000b
<4>[ 7.410254] R13: ffff8d064361e650 R14: ffffffffa2455d80 R15: 0000000000000000
<4>[ 7.410258] FS: 0000000000000000(0000) GS:ffff8d0647480000(0000) knlGS:0000000000000000
<4>[ 7.410262] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
<4>[ 7.410266] CR2: 0000000000000038 CR3: 000000056760a001 CR4: 00000000003706e0
<4>[ 7.410269] Call Trace:
<4>[ 7.410280] ? call_rcu+0x10e/0x320
<4>[ 7.410286] ? trace_hardirqs_on+0x2c/0xd0
<4>[ 7.410291] ? rdinit_setup+0x2c/0x2c
<4>[ 7.410297] ? e820__memblock_setup+0x8b/0x8b
<4>[ 7.410302] pci_iommu_init+0x16/0x3f
<4>[ 7.410307] do_one_initcall+0x46/0x1e4
<4>[ 7.410313] kernel_init_freeable+0x169/0x1b2
<4>[ 7.410320] ? rest_init+0x9f/0x9f
<4>[ 7.410325] kernel_init+0xa/0x101
<4>[ 7.410329] ret_from_fork+0x22/0x30
<4>[ 7.410333] Modules linked in:
<4>[ 7.410338] CR2: 0000000000000038
<4>[ 7.410344] ---[ end trace 16bcdb1e11668fcd ]---
Full kernel message is attached in kernel.log.
I tracked the problem down to the dev_iommu_priv_set call in init_no_remapping_devices. It seems that for one device the dev->iommu member is NULL.
An dev_err outputs the device as "pci 0000:00:02.0: DMAR" which is the intel HD 620 graphic adapter in a Lenovo T470s device.
The following patch (also attached as intel-iommu.patch) avoids this crash by checking the pointer.
diff --git a/drivers/iommu/intel/iommu.c b/drivers/iommu/intel/iommu.c
index f8177c59d229..2d285a42db3f 100644
--- a/drivers/iommu/intel/iommu.c
+++ b/drivers/iommu/intel/iommu.c
@@ -4053,7 +4053,8 @@ static void __init init_no_remapping_devices(void)
drhd->ignored = 1;
for_each_active_dev_scope(drhd->devices,
drhd->devices_cnt, i, dev)
- dev_iommu_priv_set(dev, DUMMY_DEVICE_DOMAIN_INFO);
+ if (dev->iommu)
+ dev_iommu_priv_set(dev, DUMMY_DEVICE_DOMAIN_INFO);
}
}
}
I assume the problem might be related to the following commit introduced in v5.9-rc1:
commit 01b9d4e21148c89fdbab3d6b3705f9791314b631
Author: Joerg Roedel <jroedel@suse.de>
Date: Thu Jun 25 15:08:25 2020 +0200
iommu/vt-d: Use dev_iommu_priv_get/set()
Remove the use of dev->archdata.iommu and use the private per-device
pointer provided by IOMMU core code instead.
With regards,
Torsten Hilbrich
--
Dipl.-Inform.
Torsten Hilbrich
Teamleiter Bereich Entwicklung
Abteilung Network & Client Security
Divison Public Authorities
secunet Security Networks AG
Konrad-Zuse-Platz 2-4
81829 München
Tel: +49-201-5454-3522
Fax: +49-201-5454-1327
torsten.hilbrich@secunet.com
www.secunet.com
______________________________________________________________________
secunet Security Networks AG
Sitz: Kurfürstenstraße 58, 45138 Essen, Deutschland
Amtsgericht Essen HRB 13615
Vorstand: Axel Deininger (Vors.), Torsten Henn, Dr. Kai Martius, Thomas
Pleines
Aufsichtsratsvorsitzender: Ralf Wintergerst
______________________________________________________________________
[-- Attachment #2: kernel.log --]
[-- Type: text/x-log, Size: 86594 bytes --]
Oops#1 Part1
<6>[ 0.000000] microcode: microcode updated early to revision 0xd6, date = 2020-04-27
<5>[ 0.000000] Linux version 5.9.0-devel+ (thilbrich@ts-6) (gcc (Debian 8.3.0-6) 8.3.0, GNU ld (GNU Binutils for Debian) 2.31.1) #2 SMP Mon Aug 31 09:20:36 CEST 2020
<6>[ 0.000000] Command line: BOOT_IMAGE=/isolinux/bzImage console=tty1 intel_iommu=on,igfx_off loglevel=7 initcall_debug
<6>[ 0.000000] x86/fpu: Supporting XSAVE feature 0x001: 'x87 floating point registers'
<6>[ 0.000000] x86/fpu: Supporting XSAVE feature 0x002: 'SSE registers'
<6>[ 0.000000] x86/fpu: Supporting XSAVE feature 0x004: 'AVX registers'
<6>[ 0.000000] x86/fpu: Supporting XSAVE feature 0x008: 'MPX bounds registers'
<6>[ 0.000000] x86/fpu: Supporting XSAVE feature 0x010: 'MPX CSR'
<6>[ 0.000000] x86/fpu: xstate_offset[2]: 576, xstate_sizes[2]: 256
<6>[ 0.000000] x86/fpu: xstate_offset[3]: 832, xstate_sizes[3]: 64
<6>[ 0.000000] x86/fpu: xstate_offset[4]: 896, xstate_sizes[4]: 64
<6>[ 0.000000] x86/fpu: Enabled xstate features 0x1f, context size is 960 bytes, using 'compacted' format.
<6>[ 0.000000] BIOS-provided physical RAM map:
<6>[ 0.000000] BIOS-e820: [mem 0x0000000000000000-0x0000000000057fff] usable
<6>[ 0.000000] BIOS-e820: [mem 0x0000000000058000-0x0000000000058fff] reserved
<6>[ 0.000000] BIOS-e820: [mem 0x0000000000059000-0x000000000009cfff] usable
<6>[ 0.000000] BIOS-e820: [mem 0x000000000009d000-0x00000000000fffff] reserved
<6>[ 0.000000] BIOS-e820: [mem 0x0000000000100000-0x0000000090b6cfff] usable
<6>[ 0.000000] BIOS-e820: [mem 0x0000000090b6d000-0x0000000090b6dfff] ACPI NVS
<6>[ 0.000000] BIOS-e820: [mem 0x0000000090b6e000-0x0000000090b6efff] reserved
<6>[ 0.000000] BIOS-e820: [mem 0x0000000090b6f000-0x000000009a4abfff] usable
<6>[ 0.000000] BIOS-e820: [mem 0x000000009a4ac000-0x000000009a573fff] type 20
<6>[ 0.000000] BIOS-e820: [mem 0x000000009a574000-0x000000009b52bfff] reserved
<6>[ 0.000000] BIOS-e820: [mem 0x000000009b52c000-0x000000009b54cfff] ACPI NVS
<6>[ 0.000000] BIOS-e820: [mem 0x000000009b54d000-0x000000009b54dfff] reserved
<6>[ 0.000000] BIOS-e820: [mem 0x000000009b54e000-0x000000009b599fff] ACPI NVS
<6>[ 0.000000] BIOS-e820: [mem 0x000000009b59a000-0x000000009b5fefff] ACPI data
<6>[ 0.000000] BIOS-e820: [mem 0x000000009b5ff000-0x000000009b5fffff] usable
<6>[ 0.000000] BIOS-e820: [mem 0x000000009b600000-0x000000009f7fffff] reserved
<6>[ 0.000000] BIOS-e820: [mem 0x00000000f8000000-0x00000000fbffffff] reserved
<6>[ 0.000000] BIOS-e820: [mem 0x00000000fe010000-0x00000000fe010fff] reserved
<6>[ 0.000000] BIOS-e820: [mem 0x0000000100000000-0x000000065f7fffff] usable
<6>[ 0.000000] SMT: disabled
<6>[ 0.000000] NX (Execute Disable) protection: active
<6>[ 0.000000] user-defined physical RAM map:
<6>[ 0.000000] user: [mem 0x0000000000000000-0x0000000000057fff] usable
<6>[ 0.000000] user: [mem 0x0000000000058000-0x0000000000058fff] reserved
<6>[ 0.000000] user: [mem 0x0000000000059000-0x000000000009cfff] usable
<6>[ 0.000000] user: [mem 0x000000000009d000-0x00000000000fffff] reserved
<6>[ 0.000000] user: [mem 0x0000000000100000-0x000000003fffffff] usable
<6>[ 0.000000] user: [mem 0x0000000040000000-0x0000000041ffffff] reserved
<6>[ 0.000000] user: [mem 0x0000000042000000-0x0000000090b6cfff] usable
<6>[ 0.000000] user: [mem 0x0000000090b6d000-0x0000000090b6dfff] ACPI NVS
<6>[ 0.000000] user: [mem 0x0000000090b6e000-0x0000000090b6efff] reserved
<6>[ 0.000000] user: [mem 0x0000000090b6f000-0x000000009a4abfff] usable
<6>[ 0.000000] user: [mem 0x000000009a4ac000-0x000000009a573fff] type 20
<6>[ 0.000000] user: [mem 0x000000009a574000-0x000000009b52bfff] reserved
<6>[ 0.000000] user: [mem 0x000000009b52c000-0x000000009b54cfff] ACPI NVS
<6>[ 0.000000] user: [mem 0x000000009b54d000-0x000000009b54dfff] reserved
<6>[ 0.000000] user: [mem 0x000000009b54e000-0x000000009b599fff] ACPI NVS
<6>[ 0.000000] user: [mem 0x000000009b59a000-0x000000009b5fefff] ACPI data
<6>[ 0.000000] user: [mem 0x000000009b5ff000-0x000000009b5fffff] usable
<6>[ 0.000000] user: [mem 0x000000009b600000-0x000000009f7fffff] reserved
<6>[ 0.000000] user: [mem 0x00000000f8000000-0x00000000fbffffff] reserved
<6>[ 0.000000] user: [mem 0x00000000fe010000-0x00000000fe010fff] reserved
<6>[ 0.000000] user: [mem 0x0000000100000000-0x000000065f7fffff] usable
<6>[ 0.000000] efi: EFI v2.50 by Lenovo
<6>[ 0.000000] efi: TPMFinalLog=0x9b592000 SMBIOS=0x9a6d8000 SMBIOS 3.0=0x9a6d5000 ACPI=0x9b5fe000 ACPI 2.0=0x9b5fe014 ESRT=0x9a5a2000 MEMATTR=0x953ed018
<6>[ 0.000000] SMBIOS 3.0.0 present.
<6>[ 0.000000] DMI: LENOVO 20HGS0TW00/20HGS0TW00, BIOS N1WET46S (1.25s ) 03/30/2018
<6>[ 0.000000] tsc: Detected 2900.000 MHz processor
<6>[ 0.001243] tsc: Detected 2899.886 MHz TSC
<7>[ 0.001243] e820: update [mem 0x00000000-0x00000fff] usable ==> reserved
<7>[ 0.001247] e820: remove [mem 0x000a0000-0x000fffff] usable
<6>[ 0.001260] last_pfn = 0x65f800 max_arch_pfn = 0x400000000
<7>[ 0.001267] MTRR default type: write-back
<7>[ 0.001268] MTRR fixed ranges enabled:
<7>[ 0.001270] 00000-9FFFF write-back
<7>[ 0.001272] A0000-BFFFF uncachable
<7>[ 0.001273] C0000-FFFFF write-protect
<7>[ 0.001275] MTRR variable ranges enabled:
<7>[ 0.001277] 0 base 00C0000000 mask 7FC0000000 uncachable
<7>[ 0.001279] 1 base 00A0000000 mask 7FE0000000 uncachable
<7>[ 0.001281] 2 base 009E000000 mask 7FFE000000 uncachable
<7>[ 0.001282] 3 base 009D000000 mask 7FFF000000 uncachable
<7>[ 0.001283] 4 disabled
<7>[ 0.001284] 5 disabled
<7>[ 0.001285] 6 disabled
<7>[ 0.001286] 7 disabled
<7>[ 0.001286] 8 disabled
<7>[ 0.001287] 9 disabled
<6>[ 0.002158] x86/PAT: Configuration [0-7]: WB WC UC- UC WB WP UC- WT
<6>[ 0.003267] last_pfn = 0x9b600 max_arch_pfn = 0x400000000
<6>[ 0.025517] esrt: Reserving ESRT space from 0x000000009a5a2000 to 0x000000009a5a2088.
<6>[ 0.025533] check: Scanning 1 areas for low memory corruption
<6>[ 0.025542] Using GB pages for direct mapping
<6>[ 0.026131] Secure boot could not be determined
<6>[ 0.026134] RAMDISK: [mem 0x34215000-0x36101fff]
<6>[ 0.026148] ACPI: Early table checksum verification disabled
<6>[ 0.026153] ACPI: RSDP 0x000000009B5FE014 000024 (v02 LENOVO)
<6>[ 0.026159] ACPI: XSDT 0x000000009B5C2188 000104 (v01 LENOVO TP-N1W 00001250 PTEC 00000002)
<6>[ 0.026168] ACPI: FACP 0x000000009B5F5000 0000F4 (v05 LENOVO TP-N1W 00001250 PTEC 00000002)
<6>[ 0.026177] ACPI: DSDT 0x000000009B5D0000 020CF2 (v02 LENOVO SKL 00000000 INTL 20160527)
<6>[ 0.026182] ACPI: FACS 0x000000009B53C000 000040
<6>[ 0.026186] ACPI: SSDT 0x000000009B5FC000 0003CC (v02 LENOVO Tpm2Tabl 00001000 INTL 20160527)
<6>[ 0.026191] ACPI: TPM2 0x000000009B5FB000 000034 (v03 LENOVO TP-N1W 00001250 PTEC 00000002)
<6>[ 0.026196] ACPI: UEFI 0x000000009B553000 000042 (v01 LENOVO TP-N1W 00001250 PTEC 00000002)
<6>[ 0.026200] ACPI: SSDT 0x000000009B5F7000 003246 (v02 LENOVO SaSsdt 00003000 INTL 20160527)
<6>[ 0.026205] ACPI: SSDT 0x000000009B5F6000 0005B6 (v02 LENOVO PerfTune 00001000 INTL 20160527)
<6>[ 0.026209] ACPI: HPET 0x000000009B5F4000 000038 (v01 LENOVO TP-N1W 00001250 PTEC 00000002)
<6>[ 0.026214] ACPI: APIC 0x000000009B5F3000 0000BC (v03 LENOVO TP-N1W 00001250 PTEC 00000002)
<6>[ 0.026218] ACPI: MCFG 0x000000009B5F2000 00003C (v01 LENOVO TP-N1W 00001250 PTEC 00000002)
<6>[ 0.026223] ACPI: ECDT 0x000000009B5F1000 000053 (v01 LENOVO TP-N1W 00001250 PTEC 00000002)
<6>[ 0.026227] ACPI: SSDT 0x000000009B5CE000 0016F3 (v02 LENOVO ProjSsdt 00000010 INTL 20160527)
<6>[ 0.026232] ACPI: BOOT 0x000000009B5CD000 000028 (v01 LENOVO TP-N1W 00001250 PTEC 00000002)
<6>[ 0.026237] ACPI: BATB 0x000000009B5CC000 00004A (v02 LENOVO TP-N1W 00001250 PTEC 00000002)
<6>[ 0.026241] ACPI: SLIC 0x000000009B5CB000 000176 (v01 LENOVO TP-N1W 00001250 PTEC 00000002)
<6>[ 0.026246] ACPI: SSDT 0x000000009B5C9000 0017AE (v02 LENOVO CpuSsdt 00003000 INTL 20160527)
<6>[ 0.026250] ACPI: SSDT 0x000000009B5C8000 00056D (v02 LENOVO CtdpB 00001000 INTL 20160527)
<6>[ 0.026255] ACPI: SSDT 0x000000009B5C7000 000634 (v02 LENOVO UsbCTabl 00001000 INTL 20160527)
<6>[ 0.026261] ACPI: WSMT 0x000000009B5C6000 000028 (v01 LENOVO TP-N1W 00001250 PTEC 00000002)
<6>[ 0.026266] ACPI: SSDT 0x000000009B5C5000 000141 (v02 LENOVO HdaDsp 00000000 INTL 20160527)
<6>[ 0.026272] ACPI: SSDT 0x000000009B5C4000 0004C5 (v02 LENOVO TbtTypeC 00000000 INTL 20160527)
<6>[ 0.026277] ACPI: DBGP 0x000000009B5C3000 000034 (v01 LENOVO TP-N1W 00001250 PTEC 00000002)
<6>[ 0.026281] ACPI: DBG2 0x000000009B5FD000 000054 (v00 LENOVO TP-N1W 00001250 PTEC 00000002)
<6>[ 0.026286] ACPI: MSDM 0x000000009B5C1000 000055 (v03 LENOVO TP-N1W 00001250 PTEC 00000002)
<6>[ 0.026290] ACPI: DMAR 0x000000009B5C0000 0000A8 (v01 LENOVO TP-N1W 00001250 PTEC 00000002)
<6>[ 0.026295] ACPI: ASF! 0x000000009B5BF000 0000A0 (v32 LENOVO TP-N1W 00001250 PTEC 00000002)
<6>[ 0.026299] ACPI: FPDT 0x000000009B5BE000 000044 (v01 LENOVO TP-N1W 00001250 PTEC 00000002)
<6>[ 0.026304] ACPI: BGRT 0x000000009B5BD000 000038 (v01 LENOVO TP-N1W 00001250 PTEC 00000002)
<6>[ 0.026308] ACPI: UEFI 0x000000009B539000 00013E (v01 LENOVO TP-N1W 00001250 PTEC 00000002)
<7>[ 0.026320] ACPI: Local APIC address 0xfee00000
<6>[ 0.026579] No NUMA configuration found
<6>[ 0.026582] Faking a node at [mem 0x0000000000000000-0x000000065f7fffff]
<6>[ 0.026588] NODE_DATA(0) allocated [mem 0x65f7fc000-0x65f7fffff]
<6>[ 0.026631] Zone ranges:
<6>[ 0.026632] DMA [mem 0x0000000000001000-0x0000000000ffffff]
<6>[ 0.026635] DMA32 [mem 0x0000000001000000-0x00000000ffffffff]
<6>[ 0.026637] Normal [mem 0x0000000100000000-0x000000065f7fffff]
<6>[ 0.026639] Movable zone start for each node
<6>[ 0.026641] Early memory node ranges
<6>[ 0.026643] node 0: [mem 0x0000000000001000-0x0000000000057fff]
<6>[ 0.026645] node 0: [mem 0x0000000000059000-0x000000000009cfff]
<6>[ 0.026646] node 0: [mem 0x0000000000100000-0x000000003fffffff]
<6>[ 0.026648] node 0: [mem 0x0000000042000000-0x0000000090b6cfff]
<6>[ 0.026650] node 0: [mem 0x0000000090b6f000-0x000000009a4abfff]
<6>[ 0.026651] node 0: [mem 0x000000009b5ff000-0x000000009b5fffff]
<6>[ 0.026653] node 0: [mem 0x0000000100000000-0x000000065f7fffff]
<6>[ 0.027245] Zeroed struct page in unavailable ranges: 33722 pages
<6>[ 0.027247] Initmem setup node 0 [mem 0x0000000000001000-0x000000065f7fffff]
<7>[ 0.027250] On node 0 totalpages: 6257734
<7>[ 0.027252] DMA zone: 64 pages used for memmap
<7>[ 0.027253] DMA zone: 22 pages reserved
<7>[ 0.027254] DMA zone: 3995 pages, LIFO batch:0
<7>[ 0.027294] DMA32 zone: 9683 pages used for memmap
<7>[ 0.027295] DMA32 zone: 619691 pages, LIFO batch:63
<7>[ 0.033401] Normal zone: 88032 pages used for memmap
<7>[ 0.033402] Normal zone: 5634048 pages, LIFO batch:63
<6>[ 0.088857] Reserving Intel graphics memory at [mem 0x9d800000-0x9f7fffff]
<6>[ 0.089301] ACPI: PM-Timer IO Port: 0x1808
<7>[ 0.089304] ACPI: Local APIC address 0xfee00000
<6>[ 0.089313] ACPI: LAPIC_NMI (acpi_id[0x01] high edge lint[0x1])
<6>[ 0.089314] ACPI: LAPIC_NMI (acpi_id[0x02] high edge lint[0x1])
<6>[ 0.089316] ACPI: LAPIC_NMI (acpi_id[0x03] high edge lint[0x1])
<6>[ 0.089317] ACPI: LAPIC_NMI (acpi_id[0x04] high edge lint[0x1])
<6>[ 0.089319] ACPI: LAPIC_NMI (acpi_id[0x05] high edge lint[0x1])
<6>[ 0.089320] ACPI: LAPIC_NMI (acpi_id[0x06] high edge lint[0x1])
<6>[ 0.089321] ACPI: LAPIC_NMI (acpi_id[0x07] high edge lint[0x1])
<6>[ 0.089323] ACPI: LAPIC_NMI (acpi_id[0x08] high edge lint[0x1])
<6>[ 0.089356] IOAPIC[0]: apic_id 2, version 32, address 0xfec00000, GSI 0-119
<6>[ 0.089360] ACPI: INT_SRC_OVR (bus 0 bus_irq 0 global_irq 2 dfl dfl)
<6>[ 0.089362] ACPI: INT_SRC_OVR (bus 0 bus_irq 9 global_irq 9 high level)
<7>[ 0.089365] ACPI: IRQ0 used by override.
<7>[ 0.089367] ACPI: IRQ9 used by override.
<6>[ 0.089369] Using ACPI (MADT) for SMP configuration information
<6>[ 0.089372] ACPI: HPET id: 0x8086a201 base: 0xfed00000
<7>[ 0.089382] e820: update [mem 0x94dcc000-0x94f0bfff] usable ==> reserved
<6>[ 0.089396] TSC deadline timer available
<6>[ 0.089398] smpboot: Allowing 4 CPUs, 0 hotplug CPUs
<6>[ 0.089431] [mem 0x9f800000-0xf7ffffff] available for PCI devices
<6>[ 0.089436] clocksource: refined-jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 1910969940391419 ns
<6>[ 0.101102] setup_percpu: NR_CPUS:8 nr_cpumask_bits:8 nr_cpu_ids:4 nr_node_ids:1
<6>[ 0.101359] percpu: Embedded 53 pages/cpu s176728 r8192 d32168 u524288
<7>[ 0.101370] pcpu-alloc: s176728 r8192 d32168 u524288 alloc=1*2097152
<7>[ 0.101371] pcpu-alloc: [0] 0 1 2 3
<6>[ 0.101402] Built 1 zonelists, mobility grouping on. Total pages: 6159933
<6>[ 0.101404] Policy zone: Normal
<5>[ 0.101406] Kernel command line: memmap=0x2000000$0x40000000 ramoops.mem_address=0x40000000 ramoops.mem_size=0x2000000 ramoops.ecc=1 ramoops.record_size=0x200000 ramoops.console_size=0 ramoops.ftrace_size=0 ramoops.pmsg_size=0 mem_sleep_default=deep l1tf=full mds=full nosmt BOOT_IMAGE=/isolinux/bzImage console=tty1 intel_iommu=on,igfx_off loglevel=7 initcall_debug
<6>[ 0.101684] DMAR: IOMMU enabled
<6>[ 0.101686] DMAR: Disable GFX device mapping
<6>[ 0.104787] Dentry cache hash table entries: 4194304 (order: 13, 33554432 bytes, linear)
<6>[ 0.106343] Inode-cache hash table entries: 2097152 (order: 12, 16777216 bytes, linear)
<6>[ 0.106416] mem auto-init: stack:off, heap alloc:off, heap free:off
<6>[ 0.195390] Memory: 24382024K/25030936K available (16387K kernel code, 1782K rwdata, 5580K rodata, 1552K init, 4168K bss, 648652K reserved, 0K cma-reserved)
<6>[ 0.195462] SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=4, Nodes=1
<6>[ 0.195470] Kernel/User page tables isolation: enabled
<6>[ 0.195511] ftrace: allocating 47289 entries in 185 pages
<6>[ 0.231569] ftrace: allocated 185 pages with 5 groups
<6>[ 0.231695] rcu: Hierarchical RCU implementation.
<6>[ 0.231697] rcu: RCU event tracing is enabled.
<6>[ 0.231699] rcu: RCU restricting CPUs from NR_CPUS=8 to nr_cpu_ids=4.
<6>[ 0.231701] Rude variant of Tasks RCU enabled.
<6>[ 0.231703] rcu: RCU calculated value of scheduler-enlistment delay is 100 jiffies.
<6>[ 0.231705] rcu: Adjusting geometry for rcu_fanout_leaf=16, nr_cpu_ids=4
<6>[ 0.237369] NR_IRQS: 4352, nr_irqs: 1024, preallocated irqs: 16
<5>[ 0.238309] random: get_random_bytes called from start_kernel+0x369/0x52c with crng_init=0
<7>[ 0.238335] calling con_init+0x0/0x233 @ 0
<6>[ 0.238351] Console: colour dummy device 80x25
<6>[ 0.238769] printk: console [tty1] enabled
<7>[ 0.238775] initcall con_init+0x0/0x233 returned 0 after 0 usecs
<7>[ 0.238777] calling hvc_console_init+0x0/0x14 @ 0
<7>[ 0.238781] initcall hvc_console_init+0x0/0x14 returned 0 after 0 usecs
<7>[ 0.238783] calling univ8250_console_init+0x0/0x27 @ 0
<7>[ 0.238787] initcall univ8250_console_init+0x0/0x27 returned 0 after 0 usecs
<6>[ 0.238807] ACPI: Core revision 20200717
<6>[ 0.239308] clocksource: hpet: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 79635855245 ns
<6>[ 0.239401] APIC: Switch to symmetric I/O mode setup
<6>[ 0.243602] ..TIMER: vector=0x30 apic1=0 pin1=2 apic2=-1 pin2=-1
<6>[ 0.248381] clocksource: tsc-early: mask: 0xffffffffffffffff max_cycles: 0x29ccd767b87, max_idle_ns: 440795223720 ns
<6>[ 0.248391] Calibrating delay loop (skipped), value calculated using timer frequency.. 5799.77 BogoMIPS (lpj=2899886)
<6>[ 0.248398] pid_max: default: 32768 minimum: 301
<6>[ 0.253415] LSM: Security Framework initializing
<6>[ 0.253515] Mount-cache hash table entries: 65536 (order: 7, 524288 bytes, linear)
<6>[ 0.253601] Mountpoint-cache hash table entries: 65536 (order: 7, 524288 bytes, linear)
<6>[ 0.254006] mce: CPU0: Thermal monitoring enabled (TM1)
<6>[ 0.254043] process: using mwait in idle threads
<6>[ 0.254049] Last level iTLB entries: 4KB 64, 2MB 8, 4MB 8
<6>[ 0.254053] Last level dTLB entries: 4KB 64, 2MB 0, 4MB 0, 1GB 4
<6>[ 0.254059] Spectre V1 : Mitigation: usercopy/swapgs barriers and __user pointer sanitization
<6>[ 0.254067] Spectre V2 : Mitigation: Full generic retpoline
<6>[ 0.254070] Spectre V2 : Spectre v2 / SpectreRSB mitigation: Filling RSB on context switch
<6>[ 0.254074] Spectre V2 : Enabling Restricted Speculation for firmware calls
<6>[ 0.254080] Spectre V2 : mitigation: Enabling conditional Indirect Branch Prediction Barrier
<6>[ 0.254085] Spectre V2 : User space: Mitigation: STIBP via seccomp and prctl
<6>[ 0.254091] Speculative Store Bypass: Mitigation: Speculative Store Bypass disabled via prctl and seccomp
<6>[ 0.254096] SMT: disabled
<6>[ 0.254108] SRBDS: Mitigation: Microcode
<6>[ 0.254111] MDS: Mitigation: Clear CPU buffers
<6>[ 0.254837] Freeing SMP alternatives memory: 40K
<6>[ 0.255517] smpboot: CPU0: Intel(R) Core(TM) i7-7500U CPU @ 2.70GHz (family: 0x6, model: 0x8e, stepping: 0x9)
<7>[ 0.255657] calling init_hw_perf_events+0x0/0x53b @ 1
<6>[ 0.255658] Performance Events: PEBS fmt3+, Skylake events, 32-deep LBR, full-width counters, Intel PMU driver.
<6>[ 0.255677] ... version: 4
<6>[ 0.255680] ... bit width: 48
<6>[ 0.255683] ... generic registers: 4
<6>[ 0.255686] ... value mask: 0000ffffffffffff
<6>[ 0.255689] ... max period: 00007fffffffffff
<6>[ 0.255692] ... fixed-purpose events: 3
<6>[ 0.255695] ... event mask: 000000070000000f
<7>[ 0.255730] initcall init_hw_perf_events+0x0/0x53b returned 0 after 0 usecs
<7>[ 0.255733] calling init_real_mode+0x0/0x1d2 @ 1
<7>[ 0.255746] initcall init_real_mode+0x0/0x1d2 returned 0 after 0 usecs
<7>[ 0.255749] calling trace_init_perf_perm_irq_work_exit+0x0/0x13 @ 1
<7>[ 0.255752] initcall trace_init_perf_perm_irq_work_exit+0x0/0x13 returned 0 after 0 usecs
<7>[ 0.255756] calling validate_x2apic+0x0/0x4e @ 1
<7>[ 0.255759] initcall validate_x2apic+0x0/0x4e returned 0 after 0 usecs
<7>[ 0.255762] calling register_nmi_cpu_backtrace_handler+0x0/0x16 @ 1
<7>[ 0.255766] initcall register_nmi_cpu_backtrace_handler+0x0/0x16 returned 0 after 0 usecs
<7>[ 0.255769] calling spawn_ksoftirqd+0x0/0x39 @ 1
<7>[ 0.255802] initcall spawn_ksoftirqd+0x0/0x39 returned 0 after 0 usecs
<7>[ 0.255805] calling migration_init+0x0/0x34 @ 1
<7>[ 0.255807] initcall migration_init+0x0/0x34 returned 0 after 0 usecs
<7>[ 0.255810] calling srcu_bootup_announce+0x0/0x30 @ 1
<6>[ 0.255811] rcu: Hierarchical SRCU implementation.
<7>[ 0.255817] initcall srcu_bootup_announce+0x0/0x30 returned 0 after 0 usecs
<7>[ 0.255820] calling rcu_spawn_core_kthreads+0x0/0x7c @ 1
<7>[ 0.255823] initcall rcu_spawn_core_kthreads+0x0/0x7c returned 0 after 0 usecs
<7>[ 0.255826] calling rcu_spawn_gp_kthread+0x0/0x137 @ 1
<7>[ 0.255846] initcall rcu_spawn_gp_kthread+0x0/0x137 returned 0 after 0 usecs
<7>[ 0.255849] calling check_cpu_stall_init+0x0/0x1b @ 1
<7>[ 0.255852] initcall check_cpu_stall_init+0x0/0x1b returned 0 after 0 usecs
<7>[ 0.255854] calling rcu_sysrq_init+0x0/0x22 @ 1
<7>[ 0.255857] initcall rcu_sysrq_init+0x0/0x22 returned 0 after 0 usecs
<7>[ 0.255860] calling trace_init_flags_sys_enter+0x0/0xf @ 1
<7>[ 0.255864] initcall trace_init_flags_sys_enter+0x0/0xf returned 0 after 0 usecs
<7>[ 0.255866] calling trace_init_flags_sys_exit+0x0/0xf @ 1
<7>[ 0.255869] initcall trace_init_flags_sys_exit+0x0/0xf returned 0 after 0 usecs
<7>[ 0.255872] calling cpu_stop_init+0x0/0x86 @ 1
<7>[ 0.255900] initcall cpu_stop_init+0x0/0x86 returned 0 after 0 usecs
<7>[ 0.255904] calling init_events+0x0/0x40 @ 1
<7>[ 0.255918] initcall init_events+0x0/0x40 returned 0 after 0 usecs
<7>[ 0.255921] calling init_trace_printk+0x0/0xc @ 1
<7>[ 0.255925] initcall init_trace_printk+0x0/0xc returned 0 after 0 usecs
<7>[ 0.255929] calling event_trace_enable_again+0x0/0x3e @ 1
<7>[ 0.255933] initcall event_trace_enable_again+0x0/0x3e returned 0 after 0 usecs
<7>[ 0.255936] calling jump_label_init_module+0x0/0x11 @ 1
<7>[ 0.255939] initcall jump_label_init_module+0x0/0x11 returned 0 after 0 usecs
<7>[ 0.255947] calling dynamic_debug_init+0x0/0x1ae @ 1
<7>[ 0.256124] initcall dynamic_debug_init+0x0/0x1ae returned 0 after 0 usecs
<7>[ 0.256127] calling initialize_ptr_random+0x0/0x4b @ 1
<7>[ 0.256149] initcall initialize_ptr_random+0x0/0x4b returned 0 after 0 usecs
<7>[ 0.256152] calling efi_memreserve_root_init+0x0/0x26 @ 1
<7>[ 0.256155] initcall efi_memreserve_root_init+0x0/0x26 returned 0 after 0 usecs
<7>[ 0.256158] calling efi_earlycon_remap_fb+0x0/0x4e @ 1
<7>[ 0.256161] initcall efi_earlycon_remap_fb+0x0/0x4e returned 0 after 0 usecs
<6>[ 0.256558] NMI watchdog: Enabled. Permanently consumes one hw-PMU counter.
<6>[ 0.256638] smp: Bringing up secondary CPUs ...
<6>[ 0.256754] x86: Booting SMP configuration:
<6>[ 0.256759] .... node #0, CPUs: #1 #2 #3
<6>[ 0.267160] smp: Brought up 1 node, 2 CPUs
<6>[ 0.267171] smpboot: Max logical packages: 2
<6>[ 0.267176] smpboot: Total of 2 processors activated (11599.54 BogoMIPS)
<6>[ 0.267938] devtmpfs: initialized
<7>[ 0.267938] calling ipc_ns_init+0x0/0x3f @ 1
<7>[ 0.267938] initcall ipc_ns_init+0x0/0x3f returned 0 after 0 usecs
<7>[ 0.267938] calling init_mmap_min_addr+0x0/0x16 @ 1
<7>[ 0.267938] initcall init_mmap_min_addr+0x0/0x16 returned 0 after 0 usecs
<7>[ 0.267938] calling pci_realloc_setup_params+0x0/0x41 @ 1
<7>[ 0.267938] initcall pci_realloc_setup_params+0x0/0x41 returned 0 after 0 usecs
<7>[ 0.267938] calling net_ns_init+0x0/0x11d @ 1
<7>[ 0.268395] initcall net_ns_init+0x0/0x11d returned 0 after 0 usecs
<7>[ 0.268395] calling e820__register_nvs_regions+0x0/0x38 @ 1
<6>[ 0.268395] PM: Registering ACPI NVS region [mem 0x90b6d000-0x90b6dfff] (4096 bytes)
<6>[ 0.268395] PM: Registering ACPI NVS region [mem 0x9b52c000-0x9b54cfff] (135168 bytes)
<6>[ 0.268395] PM: Registering ACPI NVS region [mem 0x9b54e000-0x9b599fff] (311296 bytes)
<7>[ 0.268395] initcall e820__register_nvs_regions+0x0/0x38 returned 0 after 0 usecs
<7>[ 0.268395] calling cpufreq_register_tsc_scaling+0x0/0x2a @ 1
<7>[ 0.268395] initcall cpufreq_register_tsc_scaling+0x0/0x2a returned 0 after 0 usecs
<7>[ 0.268395] calling reboot_init+0x0/0x3d @ 1
<7>[ 0.268395] initcall reboot_init+0x0/0x3d returned 0 after 0 usecs
<7>[ 0.268395] calling init_lapic_sysfs+0x0/0x21 @ 1
<7>[ 0.268395] initcall init_lapic_sysfs+0x0/0x21 returned 0 after 0 usecs
<7>[ 0.268395] calling alloc_frozen_cpus+0x0/0x8 @ 1
<7>[ 0.268395] initcall alloc_frozen_cpus+0x0/0x8 returned 0 after 0 usecs
<7>[ 0.268395] calling cpu_hotplug_pm_sync_init+0x0/0x14 @ 1
<7>[ 0.268395] initcall cpu_hotplug_pm_sync_init+0x0/0x14 returned 0 after 0 usecs
<7>[ 0.268395] calling wq_sysfs_init+0x0/0x2b @ 1
<7>[ 0.268395] initcall wq_sysfs_init+0x0/0x2b returned 0 after 0 usecs
<7>[ 0.268395] calling ksysfs_init+0x0/0x93 @ 1
<7>[ 0.268395] initcall ksysfs_init+0x0/0x93 returned 0 after 0 usecs
<7>[ 0.268395] calling schedutil_gov_init+0x0/0x11 @ 1
<7>[ 0.268395] initcall schedutil_gov_init+0x0/0x11 returned 0 after 0 usecs
<7>[ 0.268395] calling pm_init+0x0/0x69 @ 1
<7>[ 0.268395] initcall pm_init+0x0/0x69 returned 0 after 0 usecs
<7>[ 0.268395] calling rcu_set_runtime_mode+0x0/0x17 @ 1
<7>[ 0.268395] initcall rcu_set_runtime_mode+0x0/0x17 returned 0 after 0 usecs
<7>[ 0.268395] calling rcu_spawn_tasks_rude_kthread+0x0/0x70 @ 1
<7>[ 0.268410] initcall rcu_spawn_tasks_rude_kthread+0x0/0x70 returned 0 after 0 usecs
<7>[ 0.268410] calling init_jiffies_clocksource+0x0/0x18 @ 1
<6>[ 0.268410] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 1911260446275000 ns
<7>[ 0.268419] initcall init_jiffies_clocksource+0x0/0x18 returned 0 after 0 usecs
<7>[ 0.268422] calling futex_init+0x0/0xf7 @ 1
<6>[ 0.268427] futex hash table entries: 1024 (order: 4, 65536 bytes, linear)
<7>[ 0.268446] initcall futex_init+0x0/0xf7 returned 0 after 0 usecs
<7>[ 0.268449] calling cgroup_wq_init+0x0/0x29 @ 1
<7>[ 0.268467] initcall cgroup_wq_init+0x0/0x29 returned 0 after 0 usecs
<7>[ 0.268471] calling cgroup1_wq_init+0x0/0x29 @ 1
<7>[ 0.268485] initcall cgroup1_wq_init+0x0/0x29 returned 0 after 0 usecs
<7>[ 0.268489] calling ftrace_mod_cmd_init+0x0/0x9 @ 1
<7>[ 0.268494] initcall ftrace_mod_cmd_init+0x0/0x9 returned 0 after 0 usecs
<7>[ 0.268498] calling init_irqsoff_tracer+0x0/0xf @ 1
<7>[ 0.268504] initcall init_irqsoff_tracer+0x0/0xf returned 0 after 0 usecs
<7>[ 0.268507] calling init_wakeup_tracer+0x0/0x2d @ 1
<7>[ 0.268512] initcall init_wakeup_tracer+0x0/0x2d returned 0 after 0 usecs
<7>[ 0.268516] calling init_graph_trace+0x0/0x5d @ 1
<7>[ 0.268525] initcall init_graph_trace+0x0/0x5d returned 0 after 0 usecs
<7>[ 0.268528] calling init_zero_pfn+0x0/0x38 @ 1
<7>[ 0.268531] initcall init_zero_pfn+0x0/0x38 returned 0 after 0 usecs
<7>[ 0.268534] calling fsnotify_init+0x0/0x49 @ 1
<7>[ 0.268547] initcall fsnotify_init+0x0/0x49 returned 0 after 0 usecs
<7>[ 0.268550] calling filelock_init+0x0/0x98 @ 1
<7>[ 0.268560] initcall filelock_init+0x0/0x98 returned 0 after 0 usecs
<7>[ 0.268564] calling init_script_binfmt+0x0/0x16 @ 1
<7>[ 0.268568] initcall init_script_binfmt+0x0/0x16 returned 0 after 0 usecs
<7>[ 0.268571] calling init_elf_binfmt+0x0/0x16 @ 1
<7>[ 0.268575] initcall init_elf_binfmt+0x0/0x16 returned 0 after 0 usecs
<7>[ 0.268579] calling debugfs_init+0x0/0x5d @ 1
<7>[ 0.268586] initcall debugfs_init+0x0/0x5d returned 0 after 0 usecs
<7>[ 0.268590] calling tracefs_init+0x0/0x3b @ 1
<7>[ 0.268595] initcall tracefs_init+0x0/0x3b returned 0 after 0 usecs
<7>[ 0.268598] calling prandom_init+0x0/0xb8 @ 1
<7>[ 0.268674] initcall prandom_init+0x0/0xb8 returned 0 after 0 usecs
<7>[ 0.268676] calling pinctrl_init+0x0/0xae @ 1
<6>[ 0.268678] pinctrl core: initialized pinctrl subsystem
<7>[ 0.268704] initcall pinctrl_init+0x0/0xae returned 0 after 0 usecs
<7>[ 0.268707] calling gpiolib_dev_init+0x0/0xc2 @ 1
<7>[ 0.268722] initcall gpiolib_dev_init+0x0/0xc2 returned 0 after 0 usecs
<7>[ 0.268727] calling virtio_init+0x0/0x20 @ 1
<7>[ 0.268743] initcall virtio_init+0x0/0x20 returned 0 after 0 usecs
<7>[ 0.268752] calling iommu_init+0x0/0x2b @ 1
<7>[ 0.268756] initcall iommu_init+0x0/0x2b returned 0 after 0 usecs
<7>[ 0.268760] calling component_debug_init+0x0/0x1d @ 1
<7>[ 0.268765] initcall component_debug_init+0x0/0x1d returned 0 after 0 usecs
<7>[ 0.268768] calling early_resume_init+0x0/0xa4 @ 1
<6>[ 0.268868] PM: RTC time: 08:36:13, date: 2020-08-31
<7>[ 0.268875] initcall early_resume_init+0x0/0xa4 returned 0 after 0 usecs
<7>[ 0.268878] calling cpufreq_core_init+0x0/0x63 @ 1
<7>[ 0.268882] initcall cpufreq_core_init+0x0/0x63 returned 0 after 0 usecs
<7>[ 0.268885] calling cpufreq_gov_performance_init+0x0/0x11 @ 1
<7>[ 0.268888] initcall cpufreq_gov_performance_init+0x0/0x11 returned 0 after 0 usecs
<7>[ 0.268890] calling cpufreq_gov_userspace_init+0x0/0x11 @ 1
<7>[ 0.268893] initcall cpufreq_gov_userspace_init+0x0/0x11 returned 0 after 0 usecs
<7>[ 0.268895] calling CPU_FREQ_GOV_ONDEMAND_init+0x0/0x11 @ 1
<7>[ 0.268898] initcall CPU_FREQ_GOV_ONDEMAND_init+0x0/0x11 returned 0 after 0 usecs
<7>[ 0.268900] calling CPU_FREQ_GOV_CONSERVATIVE_init+0x0/0x11 @ 1
<7>[ 0.269394] initcall CPU_FREQ_GOV_CONSERVATIVE_init+0x0/0x11 returned 0 after 0 usecs
<7>[ 0.269396] calling cpuidle_init+0x0/0x20 @ 1
<7>[ 0.269403] initcall cpuidle_init+0x0/0x20 returned 0 after 0 usecs
<7>[ 0.269406] calling capsule_reboot_register+0x0/0x11 @ 1
<7>[ 0.269409] initcall capsule_reboot_register+0x0/0x11 returned 0 after 0 usecs
<7>[ 0.269413] calling sock_init+0x0/0x94 @ 1
<7>[ 0.269512] initcall sock_init+0x0/0x94 returned 0 after 0 usecs
<7>[ 0.269516] calling net_inuse_init+0x0/0x24 @ 1
<7>[ 0.269522] initcall net_inuse_init+0x0/0x24 returned 0 after 0 usecs
<7>[ 0.269526] calling net_defaults_init+0x0/0x24 @ 1
<7>[ 0.269530] initcall net_defaults_init+0x0/0x24 returned 0 after 0 usecs
<7>[ 0.269534] calling init_default_flow_dissectors+0x0/0x50 @ 1
<7>[ 0.269538] initcall init_default_flow_dissectors+0x0/0x50 returned 0 after 0 usecs
<7>[ 0.269542] calling netlink_proto_init+0x0/0x181 @ 1
<6>[ 0.269575] NET: Registered protocol family 16
<7>[ 0.269596] initcall netlink_proto_init+0x0/0x181 returned 0 after 0 usecs
<7>[ 0.269599] calling genl_init+0x0/0x36 @ 1
<7>[ 0.269608] initcall genl_init+0x0/0x36 returned 0 after 0 usecs
<7>[ 0.269612] calling bsp_pm_check_init+0x0/0x14 @ 1
<7>[ 0.269616] initcall bsp_pm_check_init+0x0/0x14 returned 0 after 0 usecs
<7>[ 0.269785] calling irq_sysfs_init+0x0/0x94 @ 1
<7>[ 0.269882] initcall irq_sysfs_init+0x0/0x94 returned 0 after 0 usecs
<7>[ 0.269886] calling release_early_probes+0x0/0x38 @ 1
<7>[ 0.269890] initcall release_early_probes+0x0/0x38 returned 0 after 0 usecs
<7>[ 0.269892] calling bdi_class_init+0x0/0x49 @ 1
<7>[ 0.269902] initcall bdi_class_init+0x0/0x49 returned 0 after 0 usecs
<7>[ 0.269904] calling mm_sysfs_init+0x0/0x29 @ 1
<7>[ 0.269909] initcall mm_sysfs_init+0x0/0x29 returned 0 after 0 usecs
<7>[ 0.269913] calling init_per_zone_wmark_min+0x0/0x70 @ 1
<7>[ 0.269921] initcall init_per_zone_wmark_min+0x0/0x70 returned 0 after 0 usecs
<7>[ 0.269925] calling ramoops_init+0x0/0x164 @ 1
<6>[ 0.269927] ramoops: using module parameters
<6>[ 0.487330] pstore: Registered ramoops as persistent store backend
<6>[ 0.487335] ramoops: using 0x2000000@0x40000000, ecc: 16
<7>[ 0.487354] initcall ramoops_init+0x0/0x164 returned 0 after 211914 usecs
<7>[ 0.487357] calling kobject_uevent_init+0x0/0xc @ 1
<7>[ 0.487365] initcall kobject_uevent_init+0x0/0xc returned 0 after 0 usecs
<7>[ 0.487367] calling gpiolib_sysfs_init+0x0/0xa0 @ 1
<7>[ 0.487375] initcall gpiolib_sysfs_init+0x0/0xa0 returned 0 after 0 usecs
<7>[ 0.487378] calling acpi_gpio_setup_params+0x0/0x68 @ 1
<7>[ 0.487382] initcall acpi_gpio_setup_params+0x0/0x68 returned 0 after 0 usecs
<7>[ 0.487384] calling pcibus_class_init+0x0/0x18 @ 1
<7>[ 0.487388] initcall pcibus_class_init+0x0/0x18 returned 0 after 0 usecs
<7>[ 0.487391] calling pci_driver_init+0x0/0x22 @ 1
<7>[ 0.487408] initcall pci_driver_init+0x0/0x22 returned 0 after 0 usecs
<7>[ 0.487411] calling backlight_class_init+0x0/0xa6 @ 1
<7>[ 0.487417] initcall backlight_class_init+0x0/0xa6 returned 0 after 0 usecs
<7>[ 0.487419] calling tty_class_init+0x0/0x34 @ 1
<7>[ 0.487423] initcall tty_class_init+0x0/0x34 returned 0 after 0 usecs
<7>[ 0.487425] calling vtconsole_class_init+0x0/0xd8 @ 1
<7>[ 0.487447] initcall vtconsole_class_init+0x0/0xd8 returned 0 after 0 usecs
<7>[ 0.487450] calling iommu_dev_init+0x0/0x18 @ 1
<7>[ 0.487455] initcall iommu_dev_init+0x0/0x18 returned 0 after 0 usecs
<7>[ 0.487457] calling mipi_dsi_bus_init+0x0/0x11 @ 1
<7>[ 0.487468] initcall mipi_dsi_bus_init+0x0/0x11 returned 0 after 0 usecs
<7>[ 0.487471] calling devlink_class_init+0x0/0x41 @ 1
<7>[ 0.487476] initcall devlink_class_init+0x0/0x41 returned 0 after 0 usecs
<7>[ 0.487479] calling software_node_init+0x0/0x2b @ 1
<7>[ 0.487483] initcall software_node_init+0x0/0x2b returned 0 after 0 usecs
<7>[ 0.487486] calling wakeup_sources_debugfs_init+0x0/0x24 @ 1
<7>[ 0.487492] initcall wakeup_sources_debugfs_init+0x0/0x24 returned 0 after 0 usecs
<7>[ 0.487494] calling wakeup_sources_sysfs_init+0x0/0x30 @ 1
<7>[ 0.487499] initcall wakeup_sources_sysfs_init+0x0/0x30 returned 0 after 0 usecs
<7>[ 0.487502] calling register_node_type+0x0/0x18 @ 1
<7>[ 0.487522] initcall register_node_type+0x0/0x18 returned 0 after 0 usecs
<7>[ 0.487524] calling regmap_initcall+0x0/0xd @ 1
<7>[ 0.487529] initcall regmap_initcall+0x0/0xd returned 0 after 0 usecs
<7>[ 0.487531] calling i2c_init+0x0/0xb4 @ 1
<7>[ 0.487546] initcall i2c_init+0x0/0xb4 returned 0 after 0 usecs
<7>[ 0.487548] calling thermal_init+0x0/0x114 @ 1
<6>[ 0.487550] thermal_sys: Registered thermal governor 'step_wise'
<6>[ 0.487551] thermal_sys: Registered thermal governor 'user_space'
<7>[ 0.487559] initcall thermal_init+0x0/0x114 returned 0 after 0 usecs
<7>[ 0.487563] calling init_menu+0x0/0x11 @ 1
<6>[ 0.487574] cpuidle: using governor menu
<7>[ 0.487578] initcall init_menu+0x0/0x11 returned 0 after 0 usecs
<7>[ 0.487581] calling pcc_init+0x0/0x93 @ 1
<7>[ 0.487586] initcall pcc_init+0x0/0x93 returned -19 after 0 usecs
<7>[ 0.487590] calling amd_postcore_init+0x0/0x11a @ 1
<7>[ 0.487593] initcall amd_postcore_init+0x0/0x11a returned 0 after 0 usecs
<7>[ 0.487736] calling bts_init+0x0/0xbb @ 1
<7>[ 0.487739] initcall bts_init+0x0/0xbb returned -19 after 0 usecs
<7>[ 0.487741] calling pt_init+0x0/0x33c @ 1
<7>[ 0.487745] initcall pt_init+0x0/0x33c returned 0 after 0 usecs
<7>[ 0.487745] calling boot_params_ksysfs_init+0x0/0x296 @ 1
<7>[ 0.487745] initcall boot_params_ksysfs_init+0x0/0x296 returned 0 after 0 usecs
<7>[ 0.487745] calling sbf_init+0x0/0xcb @ 1
<6>[ 0.487745] Simple Boot Flag at 0x47 set to 0x1
<7>[ 0.487745] initcall sbf_init+0x0/0xcb returned 0 after 0 usecs
<7>[ 0.487745] calling arch_kdebugfs_init+0x0/0x1cc @ 1
<7>[ 0.487745] initcall arch_kdebugfs_init+0x0/0x1cc returned 0 after 0 usecs
<7>[ 0.487745] calling intel_pconfig_init+0x0/0x82 @ 1
<7>[ 0.487745] initcall intel_pconfig_init+0x0/0x82 returned 0 after 0 usecs
<7>[ 0.487745] calling mtrr_if_init+0x0/0x5e @ 1
<7>[ 0.487745] initcall mtrr_if_init+0x0/0x5e returned 0 after 0 usecs
<7>[ 0.487745] calling ffh_cstate_init+0x0/0x2a @ 1
<7>[ 0.487745] initcall ffh_cstate_init+0x0/0x2a returned 0 after 0 usecs
<7>[ 0.487745] calling cryptomgr_init+0x0/0x11 @ 1
<7>[ 0.487745] initcall cryptomgr_init+0x0/0x11 returned 0 after 0 usecs
<7>[ 0.487745] calling acpi_pci_init+0x0/0x5d @ 1
<6>[ 0.487745] ACPI FADT declares the system doesn't support PCIe ASPM, so disable it
<6>[ 0.487745] ACPI: bus type PCI registered
<6>[ 0.487745] acpiphp: ACPI Hot Plug PCI Controller Driver version: 0.5
<7>[ 0.487745] initcall acpi_pci_init+0x0/0x5d returned 0 after 0 usecs
<7>[ 0.487745] calling dma_channel_table_init+0x0/0xdc @ 1
<7>[ 0.487745] initcall dma_channel_table_init+0x0/0xdc returned 0 after 0 usecs
<7>[ 0.487745] calling dma_bus_init+0x0/0xe2 @ 1
<7>[ 0.487745] initcall dma_bus_init+0x0/0xe2 returned 0 after 0 usecs
<7>[ 0.487745] calling iommu_dma_init+0x0/0x10 @ 1
<7>[ 0.487745] initcall iommu_dma_init+0x0/0x10 returned 0 after 0 usecs
<7>[ 0.487745] calling dmi_id_init+0x0/0x37d @ 1
<7>[ 0.487745] initcall dmi_id_init+0x0/0x37d returned 0 after 0 usecs
<7>[ 0.487745] calling pci_arch_init+0x0/0x66 @ 1
<6>[ 0.487745] PCI: MMCONFIG for domain 0000 [bus 00-3f] at [mem 0xf8000000-0xfbffffff] (base 0xf8000000)
<6>[ 0.487745] PCI: MMCONFIG at [mem 0xf8000000-0xfbffffff] reserved in E820
<6>[ 0.487747] PCI: Using configuration type 1 for base access
<7>[ 0.487755] initcall pci_arch_init+0x0/0x66 returned 0 after 0 usecs
<7>[ 0.487894] calling init_vdso+0x0/0x14 @ 1
<7>[ 0.487900] initcall init_vdso+0x0/0x14 returned 0 after 0 usecs
<7>[ 0.487902] calling fixup_ht_bug+0x0/0xb2 @ 1
<7>[ 0.487905] initcall fixup_ht_bug+0x0/0xb2 returned 0 after 0 usecs
<7>[ 0.487908] calling topology_init+0x0/0x8e @ 1
<7>[ 0.488462] initcall topology_init+0x0/0x8e returned 0 after 976 usecs
<7>[ 0.488466] calling intel_epb_init+0x0/0x69 @ 1
<4>[ 0.488472] ENERGY_PERF_BIAS: Set to 'normal', was 'performance'
<7>[ 0.488483] initcall intel_epb_init+0x0/0x69 returned 0 after 0 usecs
<7>[ 0.488483] calling mtrr_init_finialize+0x0/0x3f @ 1
<7>[ 0.488483] initcall mtrr_init_finialize+0x0/0x3f returned 0 after 0 usecs
<7>[ 0.488483] calling uid_cache_init+0x0/0x92 @ 1
<7>[ 0.488483] initcall uid_cache_init+0x0/0x92 returned 0 after 0 usecs
<7>[ 0.488483] calling param_sysfs_init+0x0/0x1b6 @ 1
<7>[ 0.491892] initcall param_sysfs_init+0x0/0x1b6 returned 0 after 2929 usecs
<7>[ 0.491895] calling user_namespace_sysctl_init+0x0/0x34 @ 1
<7>[ 0.491918] initcall user_namespace_sysctl_init+0x0/0x34 returned 0 after 0 usecs
<7>[ 0.491920] calling proc_schedstat_init+0x0/0x25 @ 1
<7>[ 0.491926] initcall proc_schedstat_init+0x0/0x25 returned 0 after 0 usecs
<7>[ 0.491928] calling pm_sysrq_init+0x0/0x19 @ 1
<7>[ 0.491939] initcall pm_sysrq_init+0x0/0x19 returned 0 after 0 usecs
<7>[ 0.491942] calling time_ns_init+0x0/0x8 @ 1
<7>[ 0.491945] initcall time_ns_init+0x0/0x8 returned 0 after 0 usecs
<7>[ 0.491947] calling cgroup_sysfs_init+0x0/0x18 @ 1
<7>[ 0.491953] initcall cgroup_sysfs_init+0x0/0x18 returned 0 after 0 usecs
<7>[ 0.491956] calling cgroup_namespaces_init+0x0/0x8 @ 1
<7>[ 0.491959] initcall cgroup_namespaces_init+0x0/0x8 returned 0 after 0 usecs
<7>[ 0.491962] calling init_kprobes+0x0/0x191 @ 1
<7>[ 0.492314] initcall init_kprobes+0x0/0x191 returned 0 after 0 usecs
<7>[ 0.492317] calling hung_task_init+0x0/0x5b @ 1
<7>[ 0.492322] initcall hung_task_init+0x0/0x5b returned 0 after 0 usecs
<7>[ 0.492322] calling send_signal_irq_work_init+0x0/0x49 @ 1
<7>[ 0.492322] initcall send_signal_irq_work_init+0x0/0x49 returned 0 after 0 usecs
<7>[ 0.492322] calling init_kprobe_trace_early+0x0/0x26 @ 1
<7>[ 0.492322] initcall init_kprobe_trace_early+0x0/0x26 returned 0 after 0 usecs
<7>[ 0.492322] calling dev_map_init+0x0/0x4d @ 1
<7>[ 0.492322] initcall dev_map_init+0x0/0x4d returned 0 after 0 usecs
<7>[ 0.492322] calling cpu_map_init+0x0/0x41 @ 1
<7>[ 0.492322] initcall cpu_map_init+0x0/0x41 returned 0 after 0 usecs
<7>[ 0.492322] calling netns_bpf_init+0x0/0x11 @ 1
<7>[ 0.492322] initcall netns_bpf_init+0x0/0x11 returned 0 after 0 usecs
<7>[ 0.492322] calling stack_map_init+0x0/0x4e @ 1
<7>[ 0.492322] initcall stack_map_init+0x0/0x4e returned 0 after 0 usecs
<7>[ 0.492322] calling oom_init+0x0/0x30 @ 1
<7>[ 0.492418] initcall oom_init+0x0/0x30 returned 0 after 976 usecs
<7>[ 0.492418] calling default_bdi_init+0x0/0x36 @ 1
<7>[ 0.492421] initcall default_bdi_init+0x0/0x36 returned 0 after 0 usecs
<7>[ 0.492423] calling percpu_enable_async+0x0/0xf @ 1
<7>[ 0.492425] initcall percpu_enable_async+0x0/0xf returned 0 after 0 usecs
<7>[ 0.492427] calling kcompactd_init+0x0/0x90 @ 1
<7>[ 0.492432] initcall kcompactd_init+0x0/0x90 returned 0 after 0 usecs
<7>[ 0.492432] calling init_user_reserve+0x0/0x40 @ 1
<7>[ 0.492432] initcall init_user_reserve+0x0/0x40 returned 0 after 0 usecs
<7>[ 0.492432] calling init_admin_reserve+0x0/0x40 @ 1
<7>[ 0.492432] initcall init_admin_reserve+0x0/0x40 returned 0 after 0 usecs
<7>[ 0.492432] calling init_reserve_notifier+0x0/0x3 @ 1
<7>[ 0.492432] initcall init_reserve_notifier+0x0/0x3 returned 0 after 0 usecs
<7>[ 0.492432] calling swap_init_sysfs+0x0/0x63 @ 1
<7>[ 0.492432] initcall swap_init_sysfs+0x0/0x63 returned 0 after 0 usecs
<7>[ 0.492432] calling swapfile_init+0x0/0x96 @ 1
<7>[ 0.492432] initcall swapfile_init+0x0/0x96 returned 0 after 0 usecs
<7>[ 0.492432] calling seqiv_module_init+0x0/0x11 @ 1
<7>[ 0.492432] initcall seqiv_module_init+0x0/0x11 returned 0 after 0 usecs
<7>[ 0.492433] calling echainiv_module_init+0x0/0x11 @ 1
<7>[ 0.492435] initcall echainiv_module_init+0x0/0x11 returned 0 after 0 usecs
<7>[ 0.492439] calling rsa_init+0x0/0x50 @ 1
<7>[ 0.492444] initcall rsa_init+0x0/0x50 returned 0 after 0 usecs
<7>[ 0.492444] calling crypto_cmac_module_init+0x0/0x11 @ 1
<7>[ 0.492444] initcall crypto_cmac_module_init+0x0/0x11 returned 0 after 0 usecs
<7>[ 0.492444] calling hmac_module_init+0x0/0x11 @ 1
<7>[ 0.492444] initcall hmac_module_init+0x0/0x11 returned 0 after 0 usecs
<6>[ 0.492444] cryptomgr_test (36) used greatest stack depth: 15728 bytes left
<7>[ 0.492444] calling crypto_null_mod_init+0x0/0x66 @ 1
<7>[ 0.492444] initcall crypto_null_mod_init+0x0/0x66 returned 0 after 0 usecs
<7>[ 0.492444] calling rmd160_mod_init+0x0/0x11 @ 1
<7>[ 0.492444] initcall rmd160_mod_init+0x0/0x11 returned 0 after 0 usecs
<7>[ 0.492444] calling sha1_generic_mod_init+0x0/0x11 @ 1
<7>[ 0.492444] initcall sha1_generic_mod_init+0x0/0x11 returned 0 after 0 usecs
<7>[ 0.492444] calling sha256_generic_mod_init+0x0/0x16 @ 1
<7>[ 0.492444] initcall sha256_generic_mod_init+0x0/0x16 returned 0 after 0 usecs
<7>[ 0.492444] calling sha512_generic_mod_init+0x0/0x16 @ 1
<7>[ 0.492444] initcall sha512_generic_mod_init+0x0/0x16 returned 0 after 0 usecs
<7>[ 0.492444] calling crypto_ecb_module_init+0x0/0x11 @ 1
<7>[ 0.492444] initcall crypto_ecb_module_init+0x0/0x11 returned 0 after 0 usecs
<7>[ 0.492444] calling crypto_cbc_module_init+0x0/0x11 @ 1
<7>[ 0.492444] initcall crypto_cbc_module_init+0x0/0x11 returned 0 after 0 usecs
<7>[ 0.492444] calling xts_module_init+0x0/0x11 @ 1
<7>[ 0.492444] initcall xts_module_init+0x0/0x11 returned 0 after 0 usecs
<7>[ 0.492444] calling crypto_ctr_module_init+0x0/0x16 @ 1
<7>[ 0.492444] initcall crypto_ctr_module_init+0x0/0x16 returned 0 after 0 usecs
<7>[ 0.492444] calling crypto_gcm_module_init+0x0/0x65 @ 1
<7>[ 0.492444] initcall crypto_gcm_module_init+0x0/0x65 returned 0 after 0 usecs
<7>[ 0.492444] calling crypto_ccm_module_init+0x0/0x16 @ 1
<7>[ 0.492444] initcall crypto_ccm_module_init+0x0/0x16 returned 0 after 0 usecs
<7>[ 0.492444] calling des_generic_mod_init+0x0/0x16 @ 1
<7>[ 0.492444] initcall des_generic_mod_init+0x0/0x16 returned 0 after 0 usecs
<7>[ 0.492444] calling blowfish_mod_init+0x0/0x11 @ 1
<7>[ 0.492444] initcall blowfish_mod_init+0x0/0x11 returned 0 after 0 usecs
<7>[ 0.492444] calling aes_init+0x0/0x11 @ 1
<7>[ 0.492444] initcall aes_init+0x0/0x11 returned 0 after 0 usecs
<7>[ 0.492444] calling camellia_init+0x0/0x11 @ 1
<7>[ 0.492444] initcall camellia_init+0x0/0x11 returned 0 after 0 usecs
<7>[ 0.492444] calling cast5_mod_init+0x0/0x11 @ 1
<7>[ 0.492444] initcall cast5_mod_init+0x0/0x11 returned 0 after 0 usecs
<7>[ 0.492444] calling cast6_mod_init+0x0/0x11 @ 1
<7>[ 0.492444] initcall cast6_mod_init+0x0/0x11 returned 0 after 0 usecs
<7>[ 0.492444] calling arc4_init+0x0/0x11 @ 1
<7>[ 0.492444] initcall arc4_init+0x0/0x11 returned 0 after 0 usecs
<7>[ 0.492444] calling deflate_mod_init+0x0/0x3f @ 1
<7>[ 0.492444] initcall deflate_mod_init+0x0/0x3f returned 0 after 0 usecs
<7>[ 0.492444] calling michael_mic_init+0x0/0x11 @ 1
<6>[ 0.492444] cryptomgr_test (57) used greatest stack depth: 15368 bytes left
<7>[ 0.492444] initcall michael_mic_init+0x0/0x11 returned 0 after 0 usecs
<7>[ 0.492444] calling crc32c_mod_init+0x0/0x11 @ 1
<7>[ 0.493402] initcall crc32c_mod_init+0x0/0x11 returned 0 after 976 usecs
<7>[ 0.493402] calling crypto_authenc_module_init+0x0/0x11 @ 1
<7>[ 0.493402] initcall crypto_authenc_module_init+0x0/0x11 returned 0 after 0 usecs
<7>[ 0.493402] calling crypto_authenc_esn_module_init+0x0/0x11 @ 1
<7>[ 0.493402] initcall crypto_authenc_esn_module_init+0x0/0x11 returned 0 after 0 usecs
<7>[ 0.493404] calling drbg_init+0x0/0xca @ 1
<7>[ 0.493422] initcall drbg_init+0x0/0xca returned 0 after 0 usecs
<7>[ 0.493422] calling ghash_mod_init+0x0/0x11 @ 1
<7>[ 0.493422] initcall ghash_mod_init+0x0/0x11 returned 0 after 0 usecs
<7>[ 0.493422] calling init_bio+0x0/0xaa @ 1
<7>[ 0.493422] initcall init_bio+0x0/0xaa returned 0 after 0 usecs
<7>[ 0.493422] calling blk_settings_init+0x0/0x2a @ 1
<7>[ 0.493422] initcall blk_settings_init+0x0/0x2a returned 0 after 0 usecs
<7>[ 0.493422] calling blk_ioc_init+0x0/0x2a @ 1
<7>[ 0.493422] initcall blk_ioc_init+0x0/0x2a returned 0 after 0 usecs
<7>[ 0.493423] calling blk_mq_init+0x0/0xba @ 1
<7>[ 0.493427] initcall blk_mq_init+0x0/0xba returned 0 after 0 usecs
<7>[ 0.493429] calling genhd_device_init+0x0/0x76 @ 1
<7>[ 0.493464] initcall genhd_device_init+0x0/0x76 returned 0 after 0 usecs
<7>[ 0.493464] calling gpiolib_debugfs_init+0x0/0x24 @ 1
<7>[ 0.493464] initcall gpiolib_debugfs_init+0x0/0x24 returned 0 after 0 usecs
<7>[ 0.493464] calling pci_slot_init+0x0/0x40 @ 1
<7>[ 0.493464] initcall pci_slot_init+0x0/0x40 returned 0 after 0 usecs
<7>[ 0.493464] calling fbmem_init+0x0/0xdb @ 1
<7>[ 0.493464] initcall fbmem_init+0x0/0xdb returned 0 after 0 usecs
<7>[ 0.493464] calling acpi_init+0x0/0x30a @ 1
<6>[ 0.493479] ACPI: Added _OSI(Module Device)
<6>[ 0.493483] ACPI: Added _OSI(Processor Device)
<6>[ 0.493486] ACPI: Added _OSI(3.0 _SCP Extensions)
<6>[ 0.493490] ACPI: Added _OSI(Processor Aggregator Device)
<6>[ 0.493493] ACPI: Added _OSI(Linux-Dell-Video)
<6>[ 0.493497] ACPI: Added _OSI(Linux-Lenovo-NV-HDMI-Audio)
<6>[ 0.493500] ACPI: Added _OSI(Linux-HPI-Hybrid-Graphics)
<6>[ 0.569724] ACPI: 10 ACPI AML tables successfully acquired and loaded
<6>[ 0.572019] ACPI: EC: EC started
<6>[ 0.572022] ACPI: EC: interrupt blocked
<6>[ 0.575677] ACPI: EC: EC_CMD/EC_SC=0x66, EC_DATA=0x62
<6>[ 0.575681] ACPI: EC: Boot ECDT EC used to handle transactions
<5>[ 0.578582] ACPI: [Firmware Bug]: BIOS _OSI(Linux) query ignored
<6>[ 0.590766] ACPI: Dynamic OEM Table Load:
<6>[ 0.590792] ACPI: SSDT 0xFFFF9B6B43946000 0006F6 (v02 PmRef Cpu0Ist 00003000 INTL 20160527)
<6>[ 0.593373] ACPI: \_PR_.PR00: _OSC native thermal LVT Acked
<6>[ 0.595097] ACPI: Dynamic OEM Table Load:
<6>[ 0.595115] ACPI: SSDT 0xFFFF9B6B4398BC00 0003FF (v02 PmRef Cpu0Cst 00003001 INTL 20160527)
<6>[ 0.597649] ACPI: Dynamic OEM Table Load:
<6>[ 0.597664] ACPI: SSDT 0xFFFF9B6B434D56C0 0000BA (v02 PmRef Cpu0Hwp 00003000 INTL 20160527)
<6>[ 0.600039] ACPI: Dynamic OEM Table Load:
<6>[ 0.600054] ACPI: SSDT 0xFFFF9B6B43946800 000628 (v02 PmRef HwpLvt 00003000 INTL 20160527)
<6>[ 0.603013] ACPI: Dynamic OEM Table Load:
<6>[ 0.603033] ACPI: SSDT 0xFFFF9B6B43508000 000D14 (v02 PmRef ApIst 00003000 INTL 20160527)
<6>[ 0.606500] ACPI: Dynamic OEM Table Load:
<6>[ 0.606515] ACPI: SSDT 0xFFFF9B6B43504000 000317 (v02 PmRef ApHwp 00003000 INTL 20160527)
<6>[ 0.609104] ACPI: Dynamic OEM Table Load:
<6>[ 0.609118] ACPI: SSDT 0xFFFF9B6B43504400 00030A (v02 PmRef ApCst 00003000 INTL 20160527)
<6>[ 0.613591] ACPI: Interpreter enabled
<6>[ 0.613665] ACPI: (supports S0 S3 S5)
<6>[ 0.613669] ACPI: Using IOAPIC for interrupt routing
<6>[ 0.613735] PCI: Using host bridge windows from ACPI; if necessary, use "pci=nocrs" and report a bug
<6>[ 0.614799] ACPI: Enabled 7 GPEs in block 00 to 7F
<6>[ 0.620579] ACPI: Power Resource [PUBS] (on)
<6>[ 0.639344] ACPI: Power Resource [WRST] (on)
<6>[ 0.641015] ACPI: Power Resource [WRST] (on)
<6>[ 0.660566] ACPI: PCI Root Bridge [PCI0] (domain 0000 [bus 00-3e])
<6>[ 0.660579] acpi PNP0A08:00: _OSC: OS supports [ExtendedConfig ASPM ClockPM Segments MSI HPX-Type3]
<6>[ 0.660792] acpi PNP0A08:00: _OSC: platform does not support [PCIeHotplug SHPCHotplug PME PCIeCapability]
<6>[ 0.660891] acpi PNP0A08:00: _OSC: not requesting control; platform does not support [PCIeCapability]
<6>[ 0.660898] acpi PNP0A08:00: _OSC: OS requested [PCIeHotplug SHPCHotplug PME PCIeCapability LTR]
<6>[ 0.660902] acpi PNP0A08:00: _OSC: platform willing to grant [LTR]
<6>[ 0.660906] acpi PNP0A08:00: _OSC failed (AE_SUPPORT); disabling ASPM
<6>[ 0.662933] PCI host bridge to bus 0000:00
<6>[ 0.662940] pci_bus 0000:00: root bus resource [io 0x0000-0x0cf7 window]
<6>[ 0.662945] pci_bus 0000:00: root bus resource [io 0x0d00-0xffff window]
<6>[ 0.662949] pci_bus 0000:00: root bus resource [mem 0x000a0000-0x000bffff window]
<6>[ 0.662954] pci_bus 0000:00: root bus resource [mem 0x000c0000-0x000c3fff window]
<6>[ 0.662958] pci_bus 0000:00: root bus resource [mem 0x000c4000-0x000c7fff window]
<6>[ 0.662962] pci_bus 0000:00: root bus resource [mem 0x000c8000-0x000cbfff window]
<6>[ 0.662966] pci_bus 0000:00: root bus resource [mem 0x000cc000-0x000cffff window]
<6>[ 0.662970] pci_bus 0000:00: root bus resource [mem 0x000d0000-0x000d3fff window]
<6>[ 0.662975] pci_bus 0000:00: root bus resource [mem 0x000d4000-0x000d7fff window]
<6>[ 0.662979] pci_bus 0000:00: root bus resource [mem 0x000d8000-0x000dbfff window]
<6>[ 0.662983] pci_bus 0000:00: root bus resource [mem 0x000dc000-0x000dffff window]
<6>[ 0.662987] pci_bus 0000:00: root bus resource [mem 0x000e0000-0x000e3fff window]
<6>[ 0.662992] pci_bus 0000:00: root bus resource [mem 0x000e4000-0x000e7fff window]
<6>[ 0.662996] pci_bus 0000:00: root bus resource [mem 0x000e8000-0x000ebfff window]
<6>[ 0.663000] pci_bus 0000:00: root bus resource [mem 0x000ec000-0x000effff window]
<6>[ 0.663004] pci_bus 0000:00: root bus resource [mem 0x000f0000-0x000fffff window]
<6>[ 0.663009] pci_bus 0000:00: root bus resource [mem 0x9f800000-0xf7ffffff window]
<6>[ 0.663013] pci_bus 0000:00: root bus resource [mem 0xfd000000-0xfe7fffff window]
<6>[ 0.663017] pci_bus 0000:00: root bus resource [bus 00-3e]
<6>[ 0.663046] pci 0000:00:00.0: calling quirk_mmio_always_on+0x0/0x10 @ 1
<6>[ 0.663053] pci 0000:00:00.0: quirk_mmio_always_on+0x0/0x10 took 0 usecs
<6>[ 0.663059] pci 0000:00:00.0: [8086:5904] type 00 class 0x060000
<6>[ 0.663108] pci 0000:00:00.0: calling quirk_igfx_skip_te_disable+0x0/0x50 @ 1
<6>[ 0.663115] pci 0000:00:00.0: quirk_igfx_skip_te_disable+0x0/0x50 took 0 usecs
<6>[ 0.664427] pci 0000:00:02.0: [8086:5916] type 00 class 0x030000
<6>[ 0.664447] pci 0000:00:02.0: reg 0x10: [mem 0xeb000000-0xebffffff 64bit]
<6>[ 0.664460] pci 0000:00:02.0: reg 0x18: [mem 0xa0000000-0xafffffff 64bit pref]
<6>[ 0.664470] pci 0000:00:02.0: reg 0x20: [io 0xe000-0xe03f]
<6>[ 0.664504] pci 0000:00:02.0: calling efifb_fixup_resources+0x0/0xf0 @ 1
<6>[ 0.664510] pci 0000:00:02.0: BAR 2: assigned to efifb
<6>[ 0.664515] pci 0000:00:02.0: efifb_fixup_resources+0x0/0xf0 took 0 usecs
<6>[ 0.664522] pci 0000:00:02.0: calling quirk_igfx_skip_te_disable+0x0/0x50 @ 1
<6>[ 0.664529] pci 0000:00:02.0: quirk_igfx_skip_te_disable+0x0/0x50 took 0 usecs
<6>[ 0.665962] pci 0000:00:14.0: [8086:9d2f] type 00 class 0x0c0330
<6>[ 0.665992] pci 0000:00:14.0: reg 0x10: [mem 0xec220000-0xec22ffff 64bit]
<6>[ 0.666053] pci 0000:00:14.0: calling quirk_igfx_skip_te_disable+0x0/0x50 @ 1
<6>[ 0.666060] pci 0000:00:14.0: quirk_igfx_skip_te_disable+0x0/0x50 took 0 usecs
<6>[ 0.666100] pci 0000:00:14.0: PME# supported from D3hot D3cold
<6>[ 0.667604] pci 0000:00:14.2: [8086:9d31] type 00 class 0x118000
<6>[ 0.667635] pci 0000:00:14.2: reg 0x10: [mem 0xec248000-0xec248fff 64bit]
<6>[ 0.667700] pci 0000:00:14.2: calling quirk_igfx_skip_te_disable+0x0/0x50 @ 1
<6>[ 0.667707] pci 0000:00:14.2: quirk_igfx_skip_te_disable+0x0/0x50 took 0 usecs
<6>[ 0.669062] pci 0000:00:16.0: [8086:9d3a] type 00 class 0x078000
<6>[ 0.669093] pci 0000:00:16.0: reg 0x10: [mem 0xec249000-0xec249fff 64bit]
<6>[ 0.669148] pci 0000:00:16.0: calling quirk_igfx_skip_te_disable+0x0/0x50 @ 1
<6>[ 0.669155] pci 0000:00:16.0: quirk_igfx_skip_te_disable+0x0/0x50 took 0 usecs
<6>[ 0.669206] pci 0000:00:16.0: PME# supported from D3hot
<6>[ 0.670668] pci 0000:00:1c.0: calling quirk_cmd_compl+0x0/0x70 @ 1
<6>[ 0.670676] pci 0000:00:1c.0: quirk_cmd_compl+0x0/0x70 took 0 usecs
<6>[ 0.670684] pci 0000:00:1c.0: calling quirk_no_aersid+0x0/0x10 @ 1
<6>[ 0.670690] pci 0000:00:1c.0: quirk_no_aersid+0x0/0x10 took 0 usecs
<6>[ 0.670694] pci 0000:00:1c.0: [8086:9d10] type 01 class 0x060400
<6>[ 0.670767] pci 0000:00:1c.0: calling quirk_igfx_skip_te_disable+0x0/0x50 @ 1
<6>[ 0.670774] pci 0000:00:1c.0: quirk_igfx_skip_te_disable+0x0/0x50 took 0 usecs
<6>[ 0.670780] pci 0000:00:1c.0: calling pci_fixup_transparent_bridge+0x0/0x20 @ 1
<6>[ 0.670787] pci 0000:00:1c.0: pci_fixup_transparent_bridge+0x0/0x20 took 0 usecs
<6>[ 0.670843] pci 0000:00:1c.0: PME# supported from D0 D3hot D3cold
<6>[ 0.670869] pci 0000:00:1c.0: Intel SPT PCH root port ACS workaround enabled
<6>[ 0.672299] pci 0000:00:1c.2: calling quirk_cmd_compl+0x0/0x70 @ 1
<6>[ 0.672311] pci 0000:00:1c.2: quirk_cmd_compl+0x0/0x70 took 0 usecs
<6>[ 0.672317] pci 0000:00:1c.2: calling quirk_no_aersid+0x0/0x10 @ 1
<6>[ 0.672322] pci 0000:00:1c.2: quirk_no_aersid+0x0/0x10 took 0 usecs
<6>[ 0.672326] pci 0000:00:1c.2: [8086:9d12] type 01 class 0x060400
<6>[ 0.672398] pci 0000:00:1c.2: calling quirk_igfx_skip_te_disable+0x0/0x50 @ 1
<6>[ 0.672405] pci 0000:00:1c.2: quirk_igfx_skip_te_disable+0x0/0x50 took 0 usecs
<6>[ 0.672411] pci 0000:00:1c.2: calling pci_fixup_transparent_bridge+0x0/0x20 @ 1
<6>[ 0.672418] pci 0000:00:1c.2: pci_fixup_transparent_bridge+0x0/0x20 took 0 usecs
<6>[ 0.672476] pci 0000:00:1c.2: PME# supported from D0 D3hot D3cold
<6>[ 0.672503] pci 0000:00:1c.2: Intel SPT PCH root port ACS workaround enabled
<6>[ 0.673945] pci 0000:00:1d.0: calling quirk_cmd_compl+0x0/0x70 @ 1
<6>[ 0.673963] pci 0000:00:1d.0: quirk_cmd_compl+0x0/0x70 took 0 usecs
<6>[ 0.673969] pci 0000:00:1d.0: calling quirk_no_aersid+0x0/0x10 @ 1
<6>[ 0.673974] pci 0000:00:1d.0: quirk_no_aersid+0x0/0x10 took 0 usecs
<6>[ 0.673978] pci 0000:00:1d.0: [8086:9d18] type 01 class 0x060400
<6>[ 0.674059] pci 0000:00:1d.0: calling quirk_igfx_skip_te_disable+0x0/0x50 @ 1
<6>[ 0.674065] pci 0000:00:1d.0: quirk_igfx_skip_te_disable+0x0/0x50 took 0 usecs
<6>[ 0.674072] pci 0000:00:1d.0: calling pci_fixup_transparent_bridge+0x0/0x20 @ 1
<6>[ 0.674078] pci 0000:00:1d.0: pci_fixup_transparent_bridge+0x0/0x20 took 0 usecs
<6>[ 0.674143] pci 0000:00:1d.0: PME# supported from D0 D3hot D3cold
<6>[ 0.674183] pci 0000:00:1d.0: Intel SPT PCH root port ACS workaround enabled
<6>[ 0.675634] pci 0000:00:1f.0: [8086:9d58] type 00 class 0x060100
<6>[ 0.675765] pci 0000:00:1f.0: calling quirk_igfx_skip_te_disable+0x0/0x50 @ 1
<6>[ 0.675772] pci 0000:00:1f.0: quirk_igfx_skip_te_disable+0x0/0x50 took 0 usecs
<6>[ 0.677180] pci 0000:00:1f.2: [8086:9d21] type 00 class 0x058000
<6>[ 0.677202] pci 0000:00:1f.2: reg 0x10: [mem 0xec244000-0xec247fff]
<6>[ 0.677265] pci 0000:00:1f.2: calling quirk_igfx_skip_te_disable+0x0/0x50 @ 1
<6>[ 0.677272] pci 0000:00:1f.2: quirk_igfx_skip_te_disable+0x0/0x50 took 0 usecs
<6>[ 0.678678] pci 0000:00:1f.3: [8086:9d71] type 00 class 0x040300
<6>[ 0.678713] pci 0000:00:1f.3: reg 0x10: [mem 0xec240000-0xec243fff 64bit]
<6>[ 0.678760] pci 0000:00:1f.3: reg 0x20: [mem 0xec230000-0xec23ffff 64bit]
<6>[ 0.678790] pci 0000:00:1f.3: calling quirk_igfx_skip_te_disable+0x0/0x50 @ 1
<6>[ 0.678797] pci 0000:00:1f.3: quirk_igfx_skip_te_disable+0x0/0x50 took 0 usecs
<6>[ 0.678849] pci 0000:00:1f.3: PME# supported from D3hot D3cold
<6>[ 0.680287] pci 0000:00:1f.4: [8086:9d23] type 00 class 0x0c0500
<6>[ 0.680344] pci 0000:00:1f.4: reg 0x10: [mem 0xec24a000-0xec24a0ff 64bit]
<6>[ 0.680402] pci 0000:00:1f.4: reg 0x20: [io 0xefa0-0xefbf]
<6>[ 0.680459] pci 0000:00:1f.4: calling quirk_igfx_skip_te_disable+0x0/0x50 @ 1
<6>[ 0.680466] pci 0000:00:1f.4: quirk_igfx_skip_te_disable+0x0/0x50 took 0 usecs
<6>[ 0.681897] pci 0000:00:1f.6: calling quirk_f0_vpd_link+0x0/0x60 @ 1
<6>[ 0.681904] pci 0000:00:1f.6: quirk_f0_vpd_link+0x0/0x60 took 0 usecs
<6>[ 0.681910] pci 0000:00:1f.6: [8086:15d8] type 00 class 0x020000
<6>[ 0.681939] pci 0000:00:1f.6: reg 0x10: [mem 0xec200000-0xec21ffff]
<6>[ 0.682024] pci 0000:00:1f.6: calling quirk_igfx_skip_te_disable+0x0/0x50 @ 1
<6>[ 0.682031] pci 0000:00:1f.6: quirk_igfx_skip_te_disable+0x0/0x50 took 0 usecs
<6>[ 0.682088] pci 0000:00:1f.6: PME# supported from D0 D3hot D3cold
<6>[ 0.683559] pci 0000:00:1c.0: PCI bridge to [bus 01-39]
<6>[ 0.683570] pci 0000:00:1c.0: bridge window [mem 0xd4000000-0xea0fffff]
<6>[ 0.683581] pci 0000:00:1c.0: bridge window [mem 0xb0000000-0xd1ffffff 64bit pref]
<6>[ 0.684137] pci 0000:3a:00.0: [8086:24fd] type 00 class 0x028000
<6>[ 0.684227] pci 0000:3a:00.0: reg 0x10: [mem 0xec100000-0xec101fff 64bit]
<6>[ 0.684461] pci 0000:3a:00.0: calling quirk_igfx_skip_te_disable+0x0/0x50 @ 1
<6>[ 0.684468] pci 0000:3a:00.0: quirk_igfx_skip_te_disable+0x0/0x50 took 0 usecs
<6>[ 0.684890] pci 0000:3a:00.0: PME# supported from D0 D3hot D3cold
<6>[ 0.685595] pci 0000:00:1c.2: PCI bridge to [bus 3a]
<6>[ 0.685607] pci 0000:00:1c.2: bridge window [mem 0xec100000-0xec1fffff]
<6>[ 0.685945] pci 0000:3c:00.0: [144d:a804] type 00 class 0x010802
<6>[ 0.685973] pci 0000:3c:00.0: reg 0x10: [mem 0xec000000-0xec003fff 64bit]
<6>[ 0.686428] pci 0000:00:1d.0: PCI bridge to [bus 3c]
<6>[ 0.686437] pci 0000:00:1d.0: bridge window [mem 0xec000000-0xec0fffff]
<6>[ 0.689279] ACPI: PCI Interrupt Link [LNKA] (IRQs 3 4 5 6 10 *11 12 14 15)
<6>[ 0.689374] ACPI: PCI Interrupt Link [LNKB] (IRQs 3 4 5 6 *10 11 12 14 15)
<6>[ 0.689459] ACPI: PCI Interrupt Link [LNKC] (IRQs 3 4 5 6 10 *11 12 14 15)
<6>[ 0.689545] ACPI: PCI Interrupt Link [LNKD] (IRQs 3 4 5 6 10 *11 12 14 15)
<6>[ 0.689631] ACPI: PCI Interrupt Link [LNKE] (IRQs 3 4 5 6 10 *11 12 14 15)
<6>[ 0.689717] ACPI: PCI Interrupt Link [LNKF] (IRQs 3 4 5 6 10 *11 12 14 15)
<6>[ 0.689802] ACPI: PCI Interrupt Link [LNKG] (IRQs 3 4 5 6 10 *11 12 14 15)
<6>[ 0.689889] ACPI: PCI Interrupt Link [LNKH] (IRQs 3 4 5 6 10 *11 12 14 15)
<6>[ 0.690742] ACPI: EC: interrupt unblocked
<6>[ 0.690746] ACPI: EC: event unblocked
<6>[ 0.690765] ACPI: EC: EC_CMD/EC_SC=0x66, EC_DATA=0x62
<6>[ 0.690768] ACPI: EC: GPE=0x16
<6>[ 0.690773] ACPI: \_SB_.PCI0.LPCB.EC__: Boot ECDT EC initialization complete
<6>[ 0.690777] ACPI: \_SB_.PCI0.LPCB.EC__: EC: Used to handle transactions and events
<7>[ 0.690878] initcall acpi_init+0x0/0x30a returned 0 after 192382 usecs
<7>[ 0.690882] calling pnp_init+0x0/0x11 @ 1
<7>[ 0.690892] initcall pnp_init+0x0/0x11 returned 0 after 0 usecs
<7>[ 0.690895] calling misc_init+0x0/0xbf @ 1
<7>[ 0.690903] initcall misc_init+0x0/0xbf returned 0 after 0 usecs
<7>[ 0.690906] calling iommu_subsys_init+0x0/0x4f @ 1
<6>[ 0.690907] iommu: Default domain type: Translated
<7>[ 0.690913] initcall iommu_subsys_init+0x0/0x4f returned 0 after 0 usecs
<7>[ 0.690917] calling cn_init+0x0/0xf0 @ 1
<7>[ 0.690927] initcall cn_init+0x0/0xf0 returned 0 after 0 usecs
<7>[ 0.690930] calling dax_core_init+0x0/0xb9 @ 1
<7>[ 0.690960] initcall dax_core_init+0x0/0xb9 returned 0 after 0 usecs
<7>[ 0.690963] calling dma_buf_init+0x0/0xc9 @ 1
<7>[ 0.690974] initcall dma_buf_init+0x0/0xc9 returned 0 after 0 usecs
<7>[ 0.690976] calling init_scsi+0x0/0x7a @ 1
<5>[ 0.691033] SCSI subsystem initialized
<7>[ 0.691038] initcall init_scsi+0x0/0x7a returned 0 after 0 usecs
<7>[ 0.691041] calling ata_init+0x0/0x324 @ 1
<7>[ 0.691105] libata version 3.00 loaded.
<7>[ 0.691109] initcall ata_init+0x0/0x324 returned 0 after 0 usecs
<7>[ 0.691112] calling phy_init+0x0/0x2bd @ 1
<7>[ 0.691133] initcall phy_init+0x0/0x2bd returned 0 after 0 usecs
<7>[ 0.691136] calling init_pcmcia_cs+0x0/0x3c @ 1
<7>[ 0.691142] initcall init_pcmcia_cs+0x0/0x3c returned 0 after 0 usecs
<7>[ 0.691145] calling usb_common_init+0x0/0x1d @ 1
<7>[ 0.691150] initcall usb_common_init+0x0/0x1d returned 0 after 0 usecs
<7>[ 0.691153] calling usb_init+0x0/0x129 @ 1
<6>[ 0.691156] ACPI: bus type USB registered
<6>[ 0.691180] usbcore: registered new interface driver usbfs
<6>[ 0.691191] usbcore: registered new interface driver hub
<6>[ 0.691220] usbcore: registered new device driver usb
<7>[ 0.691226] initcall usb_init+0x0/0x129 returned 0 after 0 usecs
<7>[ 0.691229] calling typec_init+0x0/0x73 @ 1
<7>[ 0.691245] initcall typec_init+0x0/0x73 returned 0 after 0 usecs
<7>[ 0.691248] calling serio_init+0x0/0x2a @ 1
<7>[ 0.691258] initcall serio_init+0x0/0x2a returned 0 after 0 usecs
<7>[ 0.691261] calling input_init+0x0/0xfd @ 1
<7>[ 0.691273] initcall input_init+0x0/0xfd returned 0 after 0 usecs
<7>[ 0.691275] calling rtc_init+0x0/0x4c @ 1
<7>[ 0.691286] initcall rtc_init+0x0/0x4c returned 0 after 0 usecs
<7>[ 0.691287] calling pps_init+0x0/0xaa @ 1
<6>[ 0.691291] pps_core: LinuxPPS API ver. 1 registered
<6>[ 0.691294] pps_core: Software ver. 5.3.6 - Copyright 2005-2007 Rodolfo Giometti <giometti@linux.it>
<7>[ 0.691299] initcall pps_init+0x0/0xaa returned 0 after 0 usecs
<7>[ 0.691301] calling ptp_init+0x0/0x99 @ 1
<6>[ 0.691304] PTP clock support registered
<7>[ 0.691308] initcall ptp_init+0x0/0x99 returned 0 after 0 usecs
<7>[ 0.691310] calling power_supply_class_init+0x0/0x40 @ 1
<7>[ 0.691319] initcall power_supply_class_init+0x0/0x40 returned 0 after 0 usecs
<7>[ 0.691321] calling hwmon_init+0x0/0xf9 @ 1
<7>[ 0.691328] initcall hwmon_init+0x0/0xf9 returned 0 after 0 usecs
<7>[ 0.691330] calling leds_init+0x0/0x3c @ 1
<7>[ 0.691335] initcall leds_init+0x0/0x3c returned 0 after 0 usecs
<7>[ 0.691336] calling dmi_init+0x0/0x114 @ 1
<7>[ 0.691348] initcall dmi_init+0x0/0x114 returned 0 after 0 usecs
<7>[ 0.691351] calling efisubsys_init+0x0/0x514 @ 1
<6>[ 0.691376] Registered efivars operations
<7>[ 0.691405] initcall efisubsys_init+0x0/0x514 returned 0 after 976 usecs
<7>[ 0.691408] calling nvmem_init+0x0/0x11 @ 1
<7>[ 0.691417] initcall nvmem_init+0x0/0x11 returned 0 after 0 usecs
<7>[ 0.691420] calling init_soundcore+0x0/0x34 @ 1
<7>[ 0.691425] initcall init_soundcore+0x0/0x34 returned 0 after 0 usecs
<7>[ 0.691428] calling alsa_sound_init+0x0/0x90 @ 1
<6>[ 0.691436] Advanced Linux Sound Architecture Driver Initialized.
<7>[ 0.691441] initcall alsa_sound_init+0x0/0x90 returned 0 after 0 usecs
<7>[ 0.691444] calling alsa_seq_device_init+0x0/0x72 @ 1
<7>[ 0.691453] initcall alsa_seq_device_init+0x0/0x72 returned 0 after 0 usecs
<7>[ 0.691456] calling hda_bus_init+0x0/0x11 @ 1
<7>[ 0.691466] initcall hda_bus_init+0x0/0x11 returned 0 after 0 usecs
<7>[ 0.691469] calling ac97_bus_init+0x0/0x11 @ 1
<7>[ 0.691477] initcall ac97_bus_init+0x0/0x11 returned 0 after 0 usecs
<7>[ 0.691480] calling proto_init+0x0/0x11 @ 1
<7>[ 0.691485] initcall proto_init+0x0/0x11 returned 0 after 0 usecs
<7>[ 0.691488] calling net_dev_init+0x0/0x226 @ 1
<7>[ 0.691594] initcall net_dev_init+0x0/0x226 returned 0 after 0 usecs
<7>[ 0.691597] calling neigh_init+0x0/0x85 @ 1
<7>[ 0.691602] initcall neigh_init+0x0/0x85 returned 0 after 0 usecs
<7>[ 0.691605] calling fib_notifier_init+0x0/0x11 @ 1
<7>[ 0.691609] initcall fib_notifier_init+0x0/0x11 returned 0 after 0 usecs
<7>[ 0.691612] calling fib_rules_init+0x0/0xac @ 1
<7>[ 0.691617] initcall fib_rules_init+0x0/0xac returned 0 after 0 usecs
<7>[ 0.691620] calling pktsched_init+0x0/0x10f @ 1
<7>[ 0.691628] initcall pktsched_init+0x0/0x10f returned 0 after 0 usecs
<7>[ 0.691631] calling tc_filter_init+0x0/0xfb @ 1
<7>[ 0.691639] initcall tc_filter_init+0x0/0xfb returned 0 after 0 usecs
<7>[ 0.691642] calling tc_action_init+0x0/0x55 @ 1
<7>[ 0.691646] initcall tc_action_init+0x0/0x55 returned 0 after 0 usecs
<7>[ 0.691649] calling ethnl_init+0x0/0x53 @ 1
<7>[ 0.691669] initcall ethnl_init+0x0/0x53 returned 0 after 0 usecs
<7>[ 0.691672] calling nexthop_init+0x0/0xd9 @ 1
<7>[ 0.691676] initcall nexthop_init+0x0/0xd9 returned 0 after 0 usecs
<7>[ 0.691679] calling wireless_nlevent_init+0x0/0x3a @ 1
<7>[ 0.691683] initcall wireless_nlevent_init+0x0/0x3a returned 0 after 0 usecs
<7>[ 0.691685] calling ieee80211_init+0x0/0x25 @ 1
<7>[ 0.691696] initcall ieee80211_init+0x0/0x25 returned 0 after 0 usecs
<7>[ 0.691698] calling rfkill_init+0x0/0x111 @ 1
<7>[ 0.691722] initcall rfkill_init+0x0/0x111 returned 0 after 0 usecs
<7>[ 0.691722] calling pci_subsys_init+0x0/0x67 @ 1
<6>[ 0.691722] PCI: Using ACPI for IRQ routing
<7>[ 0.694556] PCI: pci_cache_line_size set to 64 bytes
<7>[ 0.695642] e820: reserve RAM buffer [mem 0x00058000-0x0005ffff]
<7>[ 0.695644] e820: reserve RAM buffer [mem 0x0009d000-0x0009ffff]
<7>[ 0.695645] e820: reserve RAM buffer [mem 0x90b6d000-0x93ffffff]
<7>[ 0.695647] e820: reserve RAM buffer [mem 0x94dcc000-0x97ffffff]
<7>[ 0.695648] e820: reserve RAM buffer [mem 0x9a4ac000-0x9bffffff]
<7>[ 0.695650] e820: reserve RAM buffer [mem 0x9b600000-0x9bffffff]
<7>[ 0.695652] e820: reserve RAM buffer [mem 0x65f800000-0x65fffffff]
<7>[ 0.695656] initcall pci_subsys_init+0x0/0x67 returned 0 after 3906 usecs
<7>[ 0.695659] calling acpi_wmi_init+0x0/0x7b @ 1
<4>[ 0.696018] acpi PNP0C14:02: duplicate WMI GUID 05901221-D566-11D1-B2F0-00A0C9062910 (first instance was on PNP0C14:01)
<4>[ 0.696128] acpi PNP0C14:03: duplicate WMI GUID 05901221-D566-11D1-B2F0-00A0C9062910 (first instance was on PNP0C14:01)
<7>[ 0.696173] initcall acpi_wmi_init+0x0/0x7b returned 0 after 0 usecs
<7>[ 0.696320] calling nmi_warning_debugfs+0x0/0x27 @ 1
<7>[ 0.696326] initcall nmi_warning_debugfs+0x0/0x27 returned 0 after 0 usecs
<7>[ 0.696330] calling save_microcode_in_initrd+0x0/0x52 @ 1
<7>[ 0.697308] initcall save_microcode_in_initrd+0x0/0x52 returned 0 after 976 usecs
<7>[ 0.697311] calling hpet_late_init+0x0/0x1cf @ 1
<7>[ 0.697315] initcall hpet_late_init+0x0/0x1cf returned 0 after 0 usecs
<7>[ 0.697318] calling init_amd_nbs+0x0/0x11f @ 1
<7>[ 0.697328] initcall init_amd_nbs+0x0/0x11f returned 0 after 0 usecs
<7>[ 0.697331] calling clocksource_done_booting+0x0/0x42 @ 1
<6>[ 0.697347] clocksource: Switched to clocksource tsc-early
<7>[ 0.697353] initcall clocksource_done_booting+0x0/0x42 returned 0 after 8 usecs
<7>[ 0.697356] calling tracer_init_tracefs+0x0/0x1cd @ 1
<7>[ 0.718129] initcall tracer_init_tracefs+0x0/0x1cd returned 0 after 21211 usecs
<7>[ 0.718134] calling init_trace_printk_function_export+0x0/0x2d @ 1
<7>[ 0.718139] initcall init_trace_printk_function_export+0x0/0x2d returned 0 after 1 usecs
<7>[ 0.718142] calling init_graph_tracefs+0x0/0x2d @ 1
<7>[ 0.718146] initcall init_graph_tracefs+0x0/0x2d returned 0 after 1 usecs
<7>[ 0.718148] calling bpf_event_init+0x0/0xf @ 1
<7>[ 0.718150] initcall bpf_event_init+0x0/0xf returned 0 after 0 usecs
<7>[ 0.718152] calling init_kprobe_trace+0x0/0x188 @ 1
<7>[ 0.718161] initcall init_kprobe_trace+0x0/0x188 returned 0 after 6 usecs
<7>[ 0.718163] calling init_dynamic_event+0x0/0x3e @ 1
<7>[ 0.718167] initcall init_dynamic_event+0x0/0x3e returned 0 after 2 usecs
<7>[ 0.718169] calling init_uprobe_trace+0x0/0x63 @ 1
<7>[ 0.718177] initcall init_uprobe_trace+0x0/0x63 returned 0 after 5 usecs
<7>[ 0.718179] calling bpf_init+0x0/0x48 @ 1
<7>[ 0.718184] initcall bpf_init+0x0/0x48 returned 0 after 3 usecs
<7>[ 0.718187] calling init_pipe_fs+0x0/0x45 @ 1
<7>[ 0.718199] initcall init_pipe_fs+0x0/0x45 returned 0 after 9 usecs
<7>[ 0.718202] calling inotify_user_setup+0x0/0x48 @ 1
<7>[ 0.718208] initcall inotify_user_setup+0x0/0x48 returned 0 after 2 usecs
<7>[ 0.718211] calling eventpoll_init+0x0/0xc9 @ 1
<7>[ 0.718216] initcall eventpoll_init+0x0/0xc9 returned 0 after 2 usecs
<7>[ 0.718219] calling anon_inode_init+0x0/0x59 @ 1
<7>[ 0.718230] initcall anon_inode_init+0x0/0x59 returned 0 after 7 usecs
<7>[ 0.718233] calling proc_locks_init+0x0/0x28 @ 1
<7>[ 0.718237] initcall proc_locks_init+0x0/0x28 returned 0 after 1 usecs
<7>[ 0.718240] calling iomap_init+0x0/0x20 @ 1
<7>[ 0.718257] initcall iomap_init+0x0/0x20 returned 0 after 13 usecs
<7>[ 0.718260] calling proc_cmdline_init+0x0/0x22 @ 1
<7>[ 0.718265] initcall proc_cmdline_init+0x0/0x22 returned 0 after 1 usecs
<7>[ 0.718268] calling proc_consoles_init+0x0/0x25 @ 1
<7>[ 0.718272] initcall proc_consoles_init+0x0/0x25 returned 0 after 0 usecs
<7>[ 0.718275] calling proc_cpuinfo_init+0x0/0x1f @ 1
<7>[ 0.718279] initcall proc_cpuinfo_init+0x0/0x1f returned 0 after 1 usecs
<7>[ 0.718282] calling proc_devices_init+0x0/0x25 @ 1
<7>[ 0.718286] initcall proc_devices_init+0x0/0x25 returned 0 after 0 usecs
<7>[ 0.718289] calling proc_interrupts_init+0x0/0x25 @ 1
<7>[ 0.718293] initcall proc_interrupts_init+0x0/0x25 returned 0 after 0 usecs
<7>[ 0.718296] calling proc_loadavg_init+0x0/0x22 @ 1
<7>[ 0.718300] initcall proc_loadavg_init+0x0/0x22 returned 0 after 0 usecs
<7>[ 0.718303] calling proc_meminfo_init+0x0/0x22 @ 1
<7>[ 0.718306] initcall proc_meminfo_init+0x0/0x22 returned 0 after 0 usecs
<7>[ 0.718309] calling proc_stat_init+0x0/0x1f @ 1
<7>[ 0.718313] initcall proc_stat_init+0x0/0x1f returned 0 after 0 usecs
<7>[ 0.718316] calling proc_uptime_init+0x0/0x22 @ 1
<7>[ 0.718320] initcall proc_uptime_init+0x0/0x22 returned 0 after 0 usecs
<7>[ 0.718323] calling proc_version_init+0x0/0x22 @ 1
<7>[ 0.718327] initcall proc_version_init+0x0/0x22 returned 0 after 0 usecs
<7>[ 0.718330] calling proc_softirqs_init+0x0/0x22 @ 1
<7>[ 0.718334] initcall proc_softirqs_init+0x0/0x22 returned 0 after 0 usecs
<7>[ 0.718337] calling proc_kmsg_init+0x0/0x22 @ 1
<7>[ 0.718341] initcall proc_kmsg_init+0x0/0x22 returned 0 after 0 usecs
<7>[ 0.718344] calling proc_page_init+0x0/0x3c @ 1
<7>[ 0.718349] initcall proc_page_init+0x0/0x3c returned 0 after 1 usecs
<7>[ 0.718352] calling init_ramfs_fs+0x0/0x11 @ 1
<7>[ 0.718356] initcall init_ramfs_fs+0x0/0x11 returned 0 after 0 usecs
<7>[ 0.718358] calling blk_scsi_ioctl_init+0x0/0x3b3 @ 1
<7>[ 0.718361] initcall blk_scsi_ioctl_init+0x0/0x3b3 returned 0 after 0 usecs
<7>[ 0.718364] calling dynamic_debug_init_control+0x0/0x77 @ 1
<7>[ 0.718371] initcall dynamic_debug_init_control+0x0/0x77 returned 0 after 5 usecs
<7>[ 0.718375] calling acpi_event_init+0x0/0x2d @ 1
<7>[ 0.718386] initcall acpi_event_init+0x0/0x2d returned 0 after 8 usecs
<7>[ 0.718388] calling pnp_system_init+0x0/0x11 @ 1
<7>[ 0.718403] initcall pnp_system_init+0x0/0x11 returned 0 after 9 usecs
<7>[ 0.718404] calling pnpacpi_init+0x0/0x6a @ 1
<6>[ 0.718405] pnp: PnP ACPI init
<6>[ 0.718645] system 00:00: [mem 0xfd000000-0xfdabffff] has been reserved
<6>[ 0.718651] system 00:00: [mem 0xfdad0000-0xfdadffff] has been reserved
<6>[ 0.718656] system 00:00: [mem 0xfdb00000-0xfdffffff] has been reserved
<6>[ 0.718660] system 00:00: [mem 0xfe000000-0xfe01ffff] could not be reserved
<6>[ 0.718665] system 00:00: [mem 0xfe036000-0xfe03bfff] has been reserved
<6>[ 0.718669] system 00:00: [mem 0xfe03d000-0xfe3fffff] has been reserved
<6>[ 0.718673] system 00:00: [mem 0xfe410000-0xfe7fffff] has been reserved
<7>[ 0.718683] system 00:00: Plug and Play ACPI device, IDs PNP0c02 (active)
<6>[ 0.719189] system 00:01: [io 0xff00-0xfffe] has been reserved
<7>[ 0.719198] system 00:01: Plug and Play ACPI device, IDs PNP0c02 (active)
<6>[ 0.720026] system 00:02: [io 0x0680-0x069f] has been reserved
<6>[ 0.720031] system 00:02: [io 0xffff] has been reserved
<6>[ 0.720035] system 00:02: [io 0xffff] has been reserved
<6>[ 0.720039] system 00:02: [io 0xffff] has been reserved
<6>[ 0.720043] system 00:02: [io 0x1800-0x18fe] has been reserved
<6>[ 0.720047] system 00:02: [io 0x164e-0x164f] has been reserved
<7>[ 0.720055] system 00:02: Plug and Play ACPI device, IDs PNP0c02 (active)
<7>[ 0.720221] pnp 00:03: Plug and Play ACPI device, IDs PNP0b00 (active)
<6>[ 0.720280] system 00:04: [io 0x1854-0x1857] has been reserved
<7>[ 0.720289] system 00:04: Plug and Play ACPI device, IDs INT3f0d PNP0c02 (active)
<7>[ 0.720318] pnp 00:05: Plug and Play ACPI device, IDs LEN0071 PNP0303 (active)
<7>[ 0.720343] pnp 00:06: Plug and Play ACPI device, IDs LEN006c PNP0f13 (active)
<6>[ 0.720509] system 00:07: [io 0x1800-0x189f] could not be reserved
<6>[ 0.720515] system 00:07: [io 0x0800-0x087f] has been reserved
<6>[ 0.720519] system 00:07: [io 0x0880-0x08ff] has been reserved
<6>[ 0.720523] system 00:07: [io 0x0900-0x097f] has been reserved
<6>[ 0.720527] system 00:07: [io 0x0980-0x09ff] has been reserved
<6>[ 0.720531] system 00:07: [io 0x0a00-0x0a7f] has been reserved
<6>[ 0.720535] system 00:07: [io 0x0a80-0x0aff] has been reserved
<6>[ 0.720539] system 00:07: [io 0x0b00-0x0b7f] has been reserved
<6>[ 0.720543] system 00:07: [io 0x0b80-0x0bff] has been reserved
<6>[ 0.720547] system 00:07: [io 0x15e0-0x15ef] has been reserved
<6>[ 0.720553] system 00:07: [io 0x1600-0x167f] could not be reserved
<6>[ 0.720557] system 00:07: [io 0x1640-0x165f] could not be reserved
<6>[ 0.720562] system 00:07: [mem 0xf8000000-0xfbffffff] has been reserved
<6>[ 0.720567] system 00:07: [mem 0xfed10000-0xfed13fff] has been reserved
<6>[ 0.720571] system 00:07: [mem 0xfed18000-0xfed18fff] has been reserved
<6>[ 0.720576] system 00:07: [mem 0xfed19000-0xfed19fff] has been reserved
<6>[ 0.720580] system 00:07: [mem 0xfeb00000-0xfebfffff] has been reserved
<6>[ 0.720584] system 00:07: [mem 0xfed20000-0xfed3ffff] has been reserved
<6>[ 0.720589] system 00:07: [mem 0xfed90000-0xfed93fff] has been reserved
<6>[ 0.720593] system 00:07: [mem 0xf7fe0000-0xf7ffffff] has been reserved
<7>[ 0.720601] system 00:07: Plug and Play ACPI device, IDs PNP0c02 (active)
<6>[ 0.722656] system 00:08: [mem 0xfdaf0000-0xfdafffff] has been reserved
<6>[ 0.722662] system 00:08: [mem 0xfdae0000-0xfdaeffff] has been reserved
<6>[ 0.722666] system 00:08: [mem 0xfdac0000-0xfdacffff] has been reserved
<7>[ 0.722674] system 00:08: Plug and Play ACPI device, IDs PNP0c02 (active)
<6>[ 0.723563] system 00:09: [mem 0xfed10000-0xfed17fff] could not be reserved
<6>[ 0.723568] system 00:09: [mem 0xfed18000-0xfed18fff] has been reserved
<6>[ 0.723573] system 00:09: [mem 0xfed19000-0xfed19fff] has been reserved
<6>[ 0.723577] system 00:09: [mem 0xf8000000-0xfbffffff] has been reserved
<6>[ 0.723581] system 00:09: [mem 0xfed20000-0xfed3ffff] has been reserved
<6>[ 0.723586] system 00:09: [mem 0xfed90000-0xfed93fff] has been reserved
<6>[ 0.723590] system 00:09: [mem 0xfed45000-0xfed8ffff] has been reserved
<6>[ 0.723594] system 00:09: [mem 0xff000000-0xffffffff] has been reserved
<6>[ 0.723598] system 00:09: [mem 0xfee00000-0xfeefffff] has been reserved
<6>[ 0.723603] system 00:09: [mem 0xf7fe0000-0xf7ffffff] has been reserved
<7>[ 0.723611] system 00:09: Plug and Play ACPI device, IDs PNP0c02 (active)
<6>[ 0.724032] system 00:0a: [mem 0x00000000-0x0009ffff] could not be reserved
<6>[ 0.724038] system 00:0a: [mem 0x000f0000-0x000fffff] could not be reserved
<6>[ 0.724042] system 00:0a: [mem 0x00100000-0x9f7fffff] could not be reserved
<6>[ 0.724047] system 00:0a: [mem 0xfec00000-0xfed3ffff] could not be reserved
<6>[ 0.724051] system 00:0a: [mem 0xfed4c000-0xffffffff] could not be reserved
<7>[ 0.724059] system 00:0a: Plug and Play ACPI device, IDs PNP0c01 (active)
<6>[ 0.724244] pnp: PnP ACPI: found 11 devices
<7>[ 0.724251] initcall pnpacpi_init+0x0/0x6a returned 0 after 5705 usecs
<7>[ 0.724254] calling chr_dev_init+0x0/0x14b @ 1
<7>[ 0.726116] initcall chr_dev_init+0x0/0x14b returned 0 after 1814 usecs
<7>[ 0.726120] calling firmware_class_init+0x0/0xe3 @ 1
<7>[ 0.726125] initcall firmware_class_init+0x0/0xe3 returned 0 after 1 usecs
<7>[ 0.726128] calling init_pcmcia_bus+0x0/0x5c @ 1
<7>[ 0.726139] initcall init_pcmcia_bus+0x0/0x5c returned 0 after 8 usecs
<7>[ 0.726142] calling init_acpi_pm_clocksource+0x0/0xdb @ 1
<6>[ 0.730693] clocksource: acpi_pm: mask: 0xffffff max_cycles: 0xffffff, max_idle_ns: 2085701024 ns
<7>[ 0.730700] initcall init_acpi_pm_clocksource+0x0/0xdb returned 0 after 4448 usecs
<7>[ 0.730704] calling sysctl_core_init+0x0/0x2b @ 1
<7>[ 0.730728] initcall sysctl_core_init+0x0/0x2b returned 0 after 20 usecs
<7>[ 0.730731] calling eth_offload_init+0x0/0x14 @ 1
<7>[ 0.730735] initcall eth_offload_init+0x0/0x14 returned 0 after 0 usecs
<7>[ 0.730737] calling ipv4_offload_init+0x0/0x74 @ 1
<7>[ 0.730741] initcall ipv4_offload_init+0x0/0x74 returned 0 after 1 usecs
<7>[ 0.730743] calling inet_init+0x0/0x233 @ 1
<6>[ 0.730759] NET: Registered protocol family 2
<6>[ 0.730931] tcp_listen_portaddr_hash hash table entries: 16384 (order: 6, 262144 bytes, linear)
<6>[ 0.731006] TCP established hash table entries: 262144 (order: 9, 2097152 bytes, linear)
<6>[ 0.731431] TCP bind hash table entries: 65536 (order: 8, 1048576 bytes, linear)
<6>[ 0.731625] TCP: Hash tables configured (established 262144 bind 65536)
<6>[ 0.731662] UDP hash table entries: 16384 (order: 7, 524288 bytes, linear)
<6>[ 0.731770] UDP-Lite hash table entries: 16384 (order: 7, 524288 bytes, linear)
<7>[ 0.731912] initcall inet_init+0x0/0x233 returned 0 after 1138 usecs
<7>[ 0.731914] calling af_unix_init+0x0/0x4e @ 1
<6>[ 0.731917] NET: Registered protocol family 1
<7>[ 0.731927] initcall af_unix_init+0x0/0x4e returned 0 after 9 usecs
<7>[ 0.731930] calling ipv6_offload_init+0x0/0x7f @ 1
<7>[ 0.731933] initcall ipv6_offload_init+0x0/0x7f returned 0 after 0 usecs
<7>[ 0.731936] calling cfg80211_init+0x0/0xc6 @ 1
<7>[ 0.732086] initcall cfg80211_init+0x0/0xc6 returned 0 after 143 usecs
<7>[ 0.732090] calling pcibios_assign_resources+0x0/0xc0 @ 1
<6>[ 0.732098] pci 0000:00:1c.0: bridge window [io 0x1000-0x0fff] to [bus 01-39] add_size 1000
<6>[ 0.732114] pci 0000:00:1c.0: BAR 7: assigned [io 0x2000-0x2fff]
<6>[ 0.732119] pci 0000:00:1c.0: PCI bridge to [bus 01-39]
<6>[ 0.732129] pci 0000:00:1c.0: bridge window [io 0x2000-0x2fff]
<6>[ 0.732139] pci 0000:00:1c.0: bridge window [mem 0xd4000000-0xea0fffff]
<6>[ 0.732147] pci 0000:00:1c.0: bridge window [mem 0xb0000000-0xd1ffffff 64bit pref]
<6>[ 0.732157] pci 0000:00:1c.2: PCI bridge to [bus 3a]
<6>[ 0.732164] pci 0000:00:1c.2: bridge window [mem 0xec100000-0xec1fffff]
<6>[ 0.732177] pci 0000:00:1d.0: PCI bridge to [bus 3c]
<6>[ 0.732193] pci 0000:00:1d.0: bridge window [mem 0xec000000-0xec0fffff]
<6>[ 0.732205] pci_bus 0000:00: resource 4 [io 0x0000-0x0cf7 window]
<6>[ 0.732209] pci_bus 0000:00: resource 5 [io 0x0d00-0xffff window]
<6>[ 0.732213] pci_bus 0000:00: resource 6 [mem 0x000a0000-0x000bffff window]
<6>[ 0.732217] pci_bus 0000:00: resource 7 [mem 0x000c0000-0x000c3fff window]
<6>[ 0.732221] pci_bus 0000:00: resource 8 [mem 0x000c4000-0x000c7fff window]
<6>[ 0.732225] pci_bus 0000:00: resource 9 [mem 0x000c8000-0x000cbfff window]
<6>[ 0.732229] pci_bus 0000:00: resource 10 [mem 0x000cc000-0x000cffff window]
<6>[ 0.732233] pci_bus 0000:00: resource 11 [mem 0x000d0000-0x000d3fff window]
<6>[ 0.732237] pci_bus 0000:00: resource 12 [mem 0x000d4000-0x000d7fff window]
<6>[ 0.732241] pci_bus 0000:00: resource 13 [mem 0x000d8000-0x000dbfff window]
<6>[ 0.732245] pci_bus 0000:00: resource 14 [mem 0x000dc000-0x000dffff window]
<6>[ 0.732249] pci_bus 0000:00: resource 15 [mem 0x000e0000-0x000e3fff window]
<6>[ 0.732253] pci_bus 0000:00: resource 16 [mem 0x000e4000-0x000e7fff window]
<6>[ 0.732257] pci_bus 0000:00: resource 17 [mem 0x000e8000-0x000ebfff window]
<6>[ 0.732261] pci_bus 0000:00: resource 18 [mem 0x000ec000-0x000effff window]
<6>[ 0.732265] pci_bus 0000:00: resource 19 [mem 0x000f0000-0x000fffff window]
<6>[ 0.732269] pci_bus 0000:00: resource 20 [mem 0x9f800000-0xf7ffffff window]
<6>[ 0.732273] pci_bus 0000:00: resource 21 [mem 0xfd000000-0xfe7fffff window]
<6>[ 0.732277] pci_bus 0000:01: resource 0 [io 0x2000-0x2fff]
<6>[ 0.732281] pci_bus 0000:01: resource 1 [mem 0xd4000000-0xea0fffff]
<6>[ 0.732285] pci_bus 0000:01: resource 2 [mem 0xb0000000-0xd1ffffff 64bit pref]
<6>[ 0.732289] pci_bus 0000:3a: resource 1 [mem 0xec100000-0xec1fffff]
<6>[ 0.732293] pci_bus 0000:3c: resource 1 [mem 0xec000000-0xec0fffff]
<7>[ 0.732501] initcall pcibios_assign_resources+0x0/0xc0 returned 0 after 397 usecs
<7>[ 0.732504] calling pci_apply_final_quirks+0x0/0x132 @ 1
<6>[ 0.732528] pci 0000:00:02.0: calling pci_fixup_video+0x0/0xd0 @ 1
<6>[ 0.732535] pci 0000:00:02.0: Video device with shadowed ROM at [mem 0x000c0000-0x000dffff]
<6>[ 0.732543] pci 0000:00:02.0: pci_fixup_video+0x0/0xd0 took 8 usecs
<6>[ 0.732553] pci 0000:00:14.0: calling quirk_usb_early_handoff+0x0/0x643 @ 1
<6>[ 0.732955] pci 0000:00:14.0: quirk_usb_early_handoff+0x0/0x643 took 385 usecs
<6>[ 0.733023] pci 0000:00:1f.6: calling quirk_e100_interrupt+0x0/0x170 @ 1
<6>[ 0.733030] pci 0000:00:1f.6: quirk_e100_interrupt+0x0/0x170 took 0 usecs
<6>[ 0.733586] PCI: CLS 0 bytes, default 64
<7>[ 0.733592] initcall pci_apply_final_quirks+0x0/0x132 returned 0 after 1058 usecs
<7>[ 0.733595] calling acpi_reserve_resources+0x0/0xeb @ 1
<7>[ 0.733600] initcall acpi_reserve_resources+0x0/0xeb returned 0 after 2 usecs
<7>[ 0.733603] calling populate_rootfs+0x0/0xab @ 1
<6>[ 0.733647] Unpacking initramfs...
<6>[ 6.606230] Freeing initrd memory: 31668K
<7>[ 6.606257] initcall populate_rootfs+0x0/0xab returned 0 after 5735007 usecs
<7>[ 6.606262] calling pci_iommu_init+0x0/0x3f @ 1
<6>[ 6.606279] DMAR: Host address width 39
<6>[ 6.606283] DMAR: DRHD base: 0x000000fed90000 flags: 0x0
<6>[ 6.606309] DMAR: dmar0: reg_base_addr fed90000 ver 1:0 cap 1c0000c40660462 ecap 19e2ff0505e
<6>[ 6.606315] DMAR: DRHD base: 0x000000fed91000 flags: 0x1
<6>[ 6.606328] DMAR: dmar1: reg_base_addr fed91000 ver 1:0 cap d2008c40660462 ecap f050da
<6>[ 6.606332] DMAR: RMRR base: 0x0000009aa9f000 end: 0x0000009aabefff
<6>[ 6.606336] DMAR: RMRR base: 0x0000009d000000 end: 0x0000009f7fffff
<6>[ 6.606353] DMAR: No ATSR found
<1>[ 6.606425] BUG: kernel NULL pointer dereference, address: 0000000000000038
<1>[ 6.606431] #PF: supervisor write access in kernel mode
<1>[ 6.606434] #PF: error_code(0x0002) - not-present page
<6>[ 6.606437] PGD 0 P4D 0
<4>[ 6.606442] Oops: 0002 [#1] SMP PTI
<4>[ 6.606447] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.9.0-devel+ #2
<4>[ 6.606450] Hardware name: LENOVO 20HGS0TW00/20HGS0TW00, BIOS N1WET46S (1.25s ) 03/30/2018
<4>[ 6.606459] RIP: 0010:intel_iommu_init+0xed0/0x1136
<4>[ 6.606463] Code: fe e9 61 02 00 00 bb f4 ff ff ff e9 57 02 00 00 48 63 d1 48 c1 e2 04 48 03 50 20 48 8b 12 48 85 d2 74 0b 48 8b 92 d0 02 00 00 <48> 89 7a 38 ff c1 e9 15 f5 ff ff 48 c7 c7 80 98 6c a4 49 c7 c7 c0
<4>[ 6.606470] RSP: 0000:ffffb28b40073dd0 EFLAGS: 00010282
<4>[ 6.606474] RAX: ffff9b6b437e8060 RBX: 0000000000000000 RCX: 0000000000000000
<4>[ 6.606478] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffffffffffff
<4>[ 6.606481] RBP: ffffb28b40073e90 R08: 0000000000000001 R09: ffff9b6b4390f780
<4>[ 6.606485] R10: 0000000000000226 R11: 0000000000000226 R12: 000000000000000b
<4>[ 6.606489] R13: ffff9b6b4364e650 R14: ffffffffa5026d60 R15: 0000000000000000
<4>[ 6.606493] FS: 0000000000000000(0000) GS:ffff9b6b47400000(0000) knlGS:0000000000000000
<4>[ 6.606497] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
<4>[ 6.606501] CR2: 0000000000000038 CR3: 000000011800a001 CR4: 00000000003706f0
<4>[ 6.606504] Call Trace:
<4>[ 6.606515] ? vprintk_emit+0xff/0x1f0
<4>[ 6.606521] ? rdinit_setup+0x2c/0x2c
<4>[ 6.606526] ? printk+0x58/0x6f
<4>[ 6.606531] ? rdinit_setup+0x2c/0x2c
<4>[ 6.606536] ? e820__memblock_setup+0x8b/0x8b
<4>[ 6.606541] pci_iommu_init+0x16/0x3f
<4>[ 6.606546] do_one_initcall+0x46/0x1e4
<4>[ 6.606551] kernel_init_freeable+0x169/0x1b2
<4>[ 6.606558] ? rest_init+0x9f/0x9f
<4>[ 6.606562] kernel_init+0xa/0x101
<4>[ 6.606566] ret_from_fork+0x22/0x30
<4>[ 6.606570] Modules linked in:
<4>[ 6.606575] CR2: 0000000000000038
<4>[ 6.606584] ---[ end trace 5a83e8313d1e30c0 ]---
No errors detected
[-- Attachment #3: intel-iommu.patch --]
[-- Type: text/x-patch, Size: 516 bytes --]
diff --git a/drivers/iommu/intel/iommu.c b/drivers/iommu/intel/iommu.c
index f8177c59d229..2d285a42db3f 100644
--- a/drivers/iommu/intel/iommu.c
+++ b/drivers/iommu/intel/iommu.c
@@ -4053,7 +4053,8 @@ static void __init init_no_remapping_devices(void)
drhd->ignored = 1;
for_each_active_dev_scope(drhd->devices,
drhd->devices_cnt, i, dev)
- dev_iommu_priv_set(dev, DUMMY_DEVICE_DOMAIN_INFO);
+ if (dev->iommu)
+ dev_iommu_priv_set(dev, DUMMY_DEVICE_DOMAIN_INFO);
}
}
}
[-- Attachment #4: Type: text/plain, Size: 156 bytes --]
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^ permalink raw reply related [flat|nested] 8+ messages in thread
* Re: [Regression] [PATCH] iommu: Avoid crash in init_no_remapping_devices if iommu is NULL
2020-08-31 11:03 [Regression] [PATCH] iommu: Avoid crash in init_no_remapping_devices if iommu is NULL Torsten Hilbrich
@ 2020-09-01 2:02 ` Lu Baolu
2020-09-01 14:41 ` Torsten Hilbrich
0 siblings, 1 reply; 8+ messages in thread
From: Lu Baolu @ 2020-09-01 2:02 UTC (permalink / raw)
To: Torsten Hilbrich, Joerg Roedel; +Cc: iommu
Hi Torsten,
Thank you for reporting this.
On 8/31/20 7:03 PM, Torsten Hilbrich wrote:
> I noticed a kernel crash when trying to boot a v5.9-rc2 based kernel.
>
> The crash reads as:
>
> <1>[ 7.410192] BUG: kernel NULL pointer dereference, address: 0000000000000038
> <1>[ 7.410196] #PF: supervisor write access in kernel mode
> <1>[ 7.410199] #PF: error_code(0x0002) - not-present page
> <6>[ 7.410202] PGD 0 P4D 0
> <4>[ 7.410207] Oops: 0002 [#1] SMP PTI
> <4>[ 7.410212] CPU: 1 PID: 1 Comm: swapper/0 Not tainted 5.9.0-devel+ #1
> <4>[ 7.410215] Hardware name: LENOVO 20HGS0TW00/20HGS0TW00, BIOS N1WET46S (1.25s ) 03/30/2018
> <4>[ 7.410224] RIP: 0010:intel_iommu_init+0xed0/0x1136
> <4>[ 7.410229] Code: fe e9 61 02 00 00 bb f4 ff ff ff e9 57 02 00 00 48 63 d1 48 c1 e2 04 48 03 50 20 48 8b 12 48 85 d2 74 0b 48 8b 92 d0 02 00 00 <48> 89 7a 38 ff c1 e9 15 f5 ff ff 48 c7 c7 00 a5 ac a1 49 c7 c7 20
> <4>[ 7.410236] RSP: 0000:ffffb14e40073dd0 EFLAGS: 00010282
> <4>[ 7.410240] RAX: ffff8d0643731720 RBX: 0000000000000000 RCX: 0000000000000000
> <4>[ 7.410244] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffffffffffff
> <4>[ 7.410247] RBP: ffffb14e40073e90 R08: 0000000000000001 R09: ffff8d0643803700
> <4>[ 7.410250] R10: ffff8d0642620000 R11: 0000000000000016 R12: 000000000000000b
> <4>[ 7.410254] R13: ffff8d064361e650 R14: ffffffffa2455d80 R15: 0000000000000000
> <4>[ 7.410258] FS: 0000000000000000(0000) GS:ffff8d0647480000(0000) knlGS:0000000000000000
> <4>[ 7.410262] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
> <4>[ 7.410266] CR2: 0000000000000038 CR3: 000000056760a001 CR4: 00000000003706e0
> <4>[ 7.410269] Call Trace:
> <4>[ 7.410280] ? call_rcu+0x10e/0x320
> <4>[ 7.410286] ? trace_hardirqs_on+0x2c/0xd0
> <4>[ 7.410291] ? rdinit_setup+0x2c/0x2c
> <4>[ 7.410297] ? e820__memblock_setup+0x8b/0x8b
> <4>[ 7.410302] pci_iommu_init+0x16/0x3f
> <4>[ 7.410307] do_one_initcall+0x46/0x1e4
> <4>[ 7.410313] kernel_init_freeable+0x169/0x1b2
> <4>[ 7.410320] ? rest_init+0x9f/0x9f
> <4>[ 7.410325] kernel_init+0xa/0x101
> <4>[ 7.410329] ret_from_fork+0x22/0x30
> <4>[ 7.410333] Modules linked in:
> <4>[ 7.410338] CR2: 0000000000000038
> <4>[ 7.410344] ---[ end trace 16bcdb1e11668fcd ]---
>
> Full kernel message is attached in kernel.log.
>
> I tracked the problem down to the dev_iommu_priv_set call in init_no_remapping_devices. It seems that for one device the dev->iommu member is NULL.
>
> An dev_err outputs the device as "pci 0000:00:02.0: DMAR" which is the intel HD 620 graphic adapter in a Lenovo T470s device.
>
> The following patch (also attached as intel-iommu.patch) avoids this crash by checking the pointer.
>
> diff --git a/drivers/iommu/intel/iommu.c b/drivers/iommu/intel/iommu.c
> index f8177c59d229..2d285a42db3f 100644
> --- a/drivers/iommu/intel/iommu.c
> +++ b/drivers/iommu/intel/iommu.c
> @@ -4053,7 +4053,8 @@ static void __init init_no_remapping_devices(void)
> drhd->ignored = 1;
> for_each_active_dev_scope(drhd->devices,
> drhd->devices_cnt, i, dev)
> - dev_iommu_priv_set(dev, DUMMY_DEVICE_DOMAIN_INFO);
> + if (dev->iommu)
> + dev_iommu_priv_set(dev, DUMMY_DEVICE_DOMAIN_INFO);
This looks more like a generic issue, used-before-allocated, and should
be fixed in iommu.c instead of VT-d driver. How about
diff --git a/drivers/iommu/iommu.c b/drivers/iommu/iommu.c
index 8fd93a5b8764..a599da87eb60 100644
--- a/drivers/iommu/iommu.c
+++ b/drivers/iommu/iommu.c
@@ -190,6 +190,28 @@ static void dev_iommu_free(struct device *dev)
dev->iommu = NULL;
}
+void *dev_iommu_priv_get(struct device *dev)
+{
+ struct dev_iommu *param = dev_iommu_get(dev);
+
+ if (WARN_ON(!param))
+ return ERR_PTR(-ENOMEM);
+
+ return param->priv;
+}
+EXPORT_SYMBOL_GPL(dev_iommu_priv_get);
+
+void dev_iommu_priv_set(struct device *dev, void *priv)
+{
+ struct dev_iommu *param = dev_iommu_get(dev);
+
+ if (WARN_ON(!param))
+ return;
+
+ param->priv = priv;
+}
+EXPORT_SYMBOL_GPL(dev_iommu_priv_set);
+
Best regards,
baolu
> }
> }
> }
>
> I assume the problem might be related to the following commit introduced in v5.9-rc1:
>
> commit 01b9d4e21148c89fdbab3d6b3705f9791314b631
> Author: Joerg Roedel <jroedel@suse.de>
> Date: Thu Jun 25 15:08:25 2020 +0200
>
> iommu/vt-d: Use dev_iommu_priv_get/set()
>
> Remove the use of dev->archdata.iommu and use the private per-device
> pointer provided by IOMMU core code instead.
>
> With regards,
>
> Torsten Hilbrich
>
>
> _______________________________________________
> iommu mailing list
> iommu@lists.linux-foundation.org
> https://lists.linuxfoundation.org/mailman/listinfo/iommu
>
_______________________________________________
iommu mailing list
iommu@lists.linux-foundation.org
https://lists.linuxfoundation.org/mailman/listinfo/iommu
^ permalink raw reply related [flat|nested] 8+ messages in thread
* Re: [Regression] [PATCH] iommu: Avoid crash in init_no_remapping_devices if iommu is NULL
2020-09-01 2:02 ` Lu Baolu
@ 2020-09-01 14:41 ` Torsten Hilbrich
2020-09-02 2:45 ` Lu Baolu
2020-09-02 2:45 ` [Regression] [PATCH] iommu: Avoid crash in init_no_remapping_devices if iommu is NULL Lu Baolu
0 siblings, 2 replies; 8+ messages in thread
From: Torsten Hilbrich @ 2020-09-01 14:41 UTC (permalink / raw)
To: Lu Baolu, Joerg Roedel; +Cc: iommu
On 01.09.20 04:02, Lu Baolu wrote:
[...]
> This looks more like a generic issue, used-before-allocated, and should
> be fixed in iommu.c instead of VT-d driver. How about
>
> diff --git a/drivers/iommu/iommu.c b/drivers/iommu/iommu.c
> index 8fd93a5b8764..a599da87eb60 100644
> --- a/drivers/iommu/iommu.c
> +++ b/drivers/iommu/iommu.c
> @@ -190,6 +190,28 @@ static void dev_iommu_free(struct device *dev)
> dev->iommu = NULL;
> }
>
> +void *dev_iommu_priv_get(struct device *dev)
> +{
> + struct dev_iommu *param = dev_iommu_get(dev);
> +
> + if (WARN_ON(!param))
> + return ERR_PTR(-ENOMEM);
> +
> + return param->priv;
> +}
> +EXPORT_SYMBOL_GPL(dev_iommu_priv_get);
> +
> +void dev_iommu_priv_set(struct device *dev, void *priv)
> +{
> + struct dev_iommu *param = dev_iommu_get(dev);
> +
> + if (WARN_ON(!param))
> + return;
> +
> + param->priv = priv;
> +}
> +EXPORT_SYMBOL_GPL(dev_iommu_priv_set);
> +
This fix would work in my case. I tested it with slight modification to
replace the inline routines in include/linux/iommu.h.
The WARN_ON was not triggered during my tests. However, looking at the
definition of dev_iommu_get this is to be expected.
Regards,
Torsten
_______________________________________________
iommu mailing list
iommu@lists.linux-foundation.org
https://lists.linuxfoundation.org/mailman/listinfo/iommu
^ permalink raw reply [flat|nested] 8+ messages in thread
* Re: [Regression] [PATCH] iommu: Avoid crash in init_no_remapping_devices if iommu is NULL
2020-09-01 14:41 ` Torsten Hilbrich
@ 2020-09-02 2:45 ` Lu Baolu
2020-09-02 5:32 ` [PATCH] iommu: Allocate dev_iommu before accessing priv data Torsten Hilbrich
2020-09-02 2:45 ` [Regression] [PATCH] iommu: Avoid crash in init_no_remapping_devices if iommu is NULL Lu Baolu
1 sibling, 1 reply; 8+ messages in thread
From: Lu Baolu @ 2020-09-02 2:45 UTC (permalink / raw)
To: Torsten Hilbrich, Joerg Roedel; +Cc: iommu
hi Torsten,
On 9/1/20 10:41 PM, Torsten Hilbrich wrote:
> On 01.09.20 04:02, Lu Baolu wrote:
> [...]
>> This looks more like a generic issue, used-before-allocated, and should
>> be fixed in iommu.c instead of VT-d driver. How about
>>
>> diff --git a/drivers/iommu/iommu.c b/drivers/iommu/iommu.c
>> index 8fd93a5b8764..a599da87eb60 100644
>> --- a/drivers/iommu/iommu.c
>> +++ b/drivers/iommu/iommu.c
>> @@ -190,6 +190,28 @@ static void dev_iommu_free(struct device *dev)
>> dev->iommu = NULL;
>> }
>>
>> +void *dev_iommu_priv_get(struct device *dev)
>> +{
>> + struct dev_iommu *param = dev_iommu_get(dev);
>> +
>> + if (WARN_ON(!param))
>> + return ERR_PTR(-ENOMEM);
>> +
>> + return param->priv;
>> +}
>> +EXPORT_SYMBOL_GPL(dev_iommu_priv_get);
>> +
>> +void dev_iommu_priv_set(struct device *dev, void *priv)
>> +{
>> + struct dev_iommu *param = dev_iommu_get(dev);
>> +
>> + if (WARN_ON(!param))
>> + return;
>> +
>> + param->priv = priv;
>> +}
>> +EXPORT_SYMBOL_GPL(dev_iommu_priv_set);
>> +
>
> This fix would work in my case. I tested it with slight modification to
> replace the inline routines in include/linux/iommu.h.
>
> The WARN_ON was not triggered during my tests. However, looking at the
> definition of dev_iommu_get this is to be expected.
So I suppose you will post a new version. :-)
Best regards,
baolu
_______________________________________________
iommu mailing list
iommu@lists.linux-foundation.org
https://lists.linuxfoundation.org/mailman/listinfo/iommu
^ permalink raw reply [flat|nested] 8+ messages in thread
* Re: [Regression] [PATCH] iommu: Avoid crash in init_no_remapping_devices if iommu is NULL
2020-09-01 14:41 ` Torsten Hilbrich
2020-09-02 2:45 ` Lu Baolu
@ 2020-09-02 2:45 ` Lu Baolu
1 sibling, 0 replies; 8+ messages in thread
From: Lu Baolu @ 2020-09-02 2:45 UTC (permalink / raw)
To: Torsten Hilbrich, Joerg Roedel; +Cc: iommu
Hi Torsten,
On 9/1/20 10:41 PM, Torsten Hilbrich wrote:
> On 01.09.20 04:02, Lu Baolu wrote:
> [...]
>> This looks more like a generic issue, used-before-allocated, and should
>> be fixed in iommu.c instead of VT-d driver. How about
>>
>> diff --git a/drivers/iommu/iommu.c b/drivers/iommu/iommu.c
>> index 8fd93a5b8764..a599da87eb60 100644
>> --- a/drivers/iommu/iommu.c
>> +++ b/drivers/iommu/iommu.c
>> @@ -190,6 +190,28 @@ static void dev_iommu_free(struct device *dev)
>> dev->iommu = NULL;
>> }
>>
>> +void *dev_iommu_priv_get(struct device *dev)
>> +{
>> + struct dev_iommu *param = dev_iommu_get(dev);
>> +
>> + if (WARN_ON(!param))
>> + return ERR_PTR(-ENOMEM);
>> +
>> + return param->priv;
>> +}
>> +EXPORT_SYMBOL_GPL(dev_iommu_priv_get);
>> +
>> +void dev_iommu_priv_set(struct device *dev, void *priv)
>> +{
>> + struct dev_iommu *param = dev_iommu_get(dev);
>> +
>> + if (WARN_ON(!param))
>> + return;
>> +
>> + param->priv = priv;
>> +}
>> +EXPORT_SYMBOL_GPL(dev_iommu_priv_set);
>> +
>
> This fix would work in my case. I tested it with slight modification to
> replace the inline routines in include/linux/iommu.h.
>
> The WARN_ON was not triggered during my tests. However, looking at the
> definition of dev_iommu_get this is to be expected.
So I suppose you will post a new version. :-)
Best regards,
baolu
_______________________________________________
iommu mailing list
iommu@lists.linux-foundation.org
https://lists.linuxfoundation.org/mailman/listinfo/iommu
^ permalink raw reply [flat|nested] 8+ messages in thread
* [PATCH] iommu: Allocate dev_iommu before accessing priv data
2020-09-02 2:45 ` Lu Baolu
@ 2020-09-02 5:32 ` Torsten Hilbrich
2020-09-02 11:31 ` Robin Murphy
0 siblings, 1 reply; 8+ messages in thread
From: Torsten Hilbrich @ 2020-09-02 5:32 UTC (permalink / raw)
To: Lu Baolu, Joerg Roedel; +Cc: iommu
After updating from v5.8 to v5.9-rc2 I noticed some problems when
booting a system with kernel cmdline "intel_iommu=on,igfx_off".
The following stacktrace was produced:
<6>[ 0.000000] Command line: BOOT_IMAGE=/isolinux/bzImage console=tty1 intel_iommu=on,igfx_off
...
<6>[ 3.341682] DMAR: Host address width 39
<6>[ 3.341684] DMAR: DRHD base: 0x000000fed90000 flags: 0x0
<6>[ 3.341702] DMAR: dmar0: reg_base_addr fed90000 ver 1:0 cap 1c0000c40660462 ecap 19e2ff0505e
<6>[ 3.341705] DMAR: DRHD base: 0x000000fed91000 flags: 0x1
<6>[ 3.341711] DMAR: dmar1: reg_base_addr fed91000 ver 1:0 cap d2008c40660462 ecap f050da
<6>[ 3.341713] DMAR: RMRR base: 0x0000009aa9f000 end: 0x0000009aabefff
<6>[ 3.341716] DMAR: RMRR base: 0x0000009d000000 end: 0x0000009f7fffff
<6>[ 3.341726] DMAR: No ATSR found
<1>[ 3.341772] BUG: kernel NULL pointer dereference, address: 0000000000000038
<1>[ 3.341774] #PF: supervisor write access in kernel mode
<1>[ 3.341776] #PF: error_code(0x0002) - not-present page
<6>[ 3.341777] PGD 0 P4D 0
<4>[ 3.341780] Oops: 0002 [#1] SMP PTI
<4>[ 3.341783] CPU: 1 PID: 1 Comm: swapper/0 Not tainted 5.9.0-devel+ #2
<4>[ 3.341785] Hardware name: LENOVO 20HGS0TW00/20HGS0TW00, BIOS N1WET46S (1.25s ) 03/30/2018
<4>[ 3.341790] RIP: 0010:intel_iommu_init+0xed0/0x1136
<4>[ 3.341792] Code: fe e9 61 02 00 00 bb f4 ff ff ff e9 57 02 00 00 48 63 d1 48 c1 e2 04 48 03 50 20 48 8b 12 48 85 d2 74 0b 48 8b 92 d0 02 00 00 <48> 89 7a 38 ff c1 e9 15 f5 ff ff 48 c7 c7 60 99 ac a7 49 c7 c7 a0
<4>[ 3.341796] RSP: 0000:ffff96d180073dd0 EFLAGS: 00010282
<4>[ 3.341798] RAX: ffff8c91037a7d20 RBX: 0000000000000000 RCX: 0000000000000000
<4>[ 3.341800] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffffffffffff
<4>[ 3.341802] RBP: ffff96d180073e90 R08: 0000000000000001 R09: ffff8c91039fe3c0
<4>[ 3.341804] R10: 0000000000000226 R11: 0000000000000226 R12: 000000000000000b
<4>[ 3.341806] R13: ffff8c910367c650 R14: ffffffffa8426d60 R15: 0000000000000000
<4>[ 3.341808] FS: 0000000000000000(0000) GS:ffff8c9107480000(0000) knlGS:0000000000000000
<4>[ 3.341810] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
<4>[ 3.341812] CR2: 0000000000000038 CR3: 00000004b100a001 CR4: 00000000003706e0
<4>[ 3.341814] Call Trace:
<4>[ 3.341820] ? _raw_spin_unlock_irqrestore+0x1f/0x30
<4>[ 3.341824] ? call_rcu+0x10e/0x320
<4>[ 3.341828] ? trace_hardirqs_on+0x2c/0xd0
<4>[ 3.341831] ? rdinit_setup+0x2c/0x2c
<4>[ 3.341834] ? e820__memblock_setup+0x8b/0x8b
<4>[ 3.341836] pci_iommu_init+0x16/0x3f
<4>[ 3.341839] do_one_initcall+0x46/0x1e4
<4>[ 3.341842] kernel_init_freeable+0x169/0x1b2
<4>[ 3.341845] ? rest_init+0x9f/0x9f
<4>[ 3.341847] kernel_init+0xa/0x101
<4>[ 3.341849] ret_from_fork+0x22/0x30
<4>[ 3.341851] Modules linked in:
<4>[ 3.341854] CR2: 0000000000000038
<4>[ 3.341860] ---[ end trace 3653722a6f936f18 ]---
I could track the problem down to the dev_iommu_priv_set call in the function
init_no_remapping_devices in the path where !dmar_map_gfx. It turned out that
the dev->iommu entry is NULL at this time.
Lu Baolu <baolu.lu@linux.intel.com> suggested for dev_iommu_priv_set
to automatically allocate the iommu entry by using the function
dev_iommu_get to retrieve that pointer. This function allocates the
entry if needed.
Fixes: 01b9d4e21148 ("iommu/vt-d: Use dev_iommu_priv_get/set()")
Signed-off-by: Torsten Hilbrich <torsten.hilbrich@secunet.com>
Tested-by: Torsten Hilbrich <torsten.hilbrich@secunet.com>
Link: https://lists.linuxfoundation.org/pipermail/iommu/2020-August/048098.html
---
drivers/iommu/iommu.c | 22 ++++++++++++++++++++++
include/linux/iommu.h | 11 ++---------
2 files changed, 24 insertions(+), 9 deletions(-)
diff --git a/drivers/iommu/iommu.c b/drivers/iommu/iommu.c
index 609bd25bf154..3edca2a31296 100644
--- a/drivers/iommu/iommu.c
+++ b/drivers/iommu/iommu.c
@@ -2849,3 +2849,25 @@ int iommu_sva_get_pasid(struct iommu_sva *handle)
return ops->sva_get_pasid(handle);
}
EXPORT_SYMBOL_GPL(iommu_sva_get_pasid);
+
+void *dev_iommu_priv_get(struct device *dev)
+{
+ struct dev_iommu *param = dev_iommu_get(dev);
+
+ if (WARN_ON(!param))
+ return ERR_PTR(-ENOMEM);
+
+ return param->priv;
+}
+EXPORT_SYMBOL_GPL(dev_iommu_priv_get);
+
+void dev_iommu_priv_set(struct device *dev, void *priv)
+{
+ struct dev_iommu *param = dev_iommu_get(dev);
+
+ if (WARN_ON(!param))
+ return;
+
+ param->priv = priv;
+}
+EXPORT_SYMBOL_GPL(dev_iommu_priv_set);
diff --git a/include/linux/iommu.h b/include/linux/iommu.h
index fee209efb756..e3e725cf64b3 100644
--- a/include/linux/iommu.h
+++ b/include/linux/iommu.h
@@ -609,15 +609,8 @@ static inline void dev_iommu_fwspec_set(struct device *dev,
dev->iommu->fwspec = fwspec;
}
-static inline void *dev_iommu_priv_get(struct device *dev)
-{
- return dev->iommu->priv;
-}
-
-static inline void dev_iommu_priv_set(struct device *dev, void *priv)
-{
- dev->iommu->priv = priv;
-}
+void *dev_iommu_priv_get(struct device *dev);
+void dev_iommu_priv_set(struct device *dev, void *priv);
int iommu_probe_device(struct device *dev);
void iommu_release_device(struct device *dev);
--
2.26.2
_______________________________________________
iommu mailing list
iommu@lists.linux-foundation.org
https://lists.linuxfoundation.org/mailman/listinfo/iommu
^ permalink raw reply related [flat|nested] 8+ messages in thread
* Re: [PATCH] iommu: Allocate dev_iommu before accessing priv data
2020-09-02 5:32 ` [PATCH] iommu: Allocate dev_iommu before accessing priv data Torsten Hilbrich
@ 2020-09-02 11:31 ` Robin Murphy
2020-09-03 6:46 ` Lu Baolu
0 siblings, 1 reply; 8+ messages in thread
From: Robin Murphy @ 2020-09-02 11:31 UTC (permalink / raw)
To: Torsten Hilbrich, Lu Baolu, Joerg Roedel; +Cc: iommu
On 2020-09-02 06:32, Torsten Hilbrich wrote:
> After updating from v5.8 to v5.9-rc2 I noticed some problems when
> booting a system with kernel cmdline "intel_iommu=on,igfx_off".
>
> The following stacktrace was produced:
>
> <6>[ 0.000000] Command line: BOOT_IMAGE=/isolinux/bzImage console=tty1 intel_iommu=on,igfx_off
> ...
> <6>[ 3.341682] DMAR: Host address width 39
> <6>[ 3.341684] DMAR: DRHD base: 0x000000fed90000 flags: 0x0
> <6>[ 3.341702] DMAR: dmar0: reg_base_addr fed90000 ver 1:0 cap 1c0000c40660462 ecap 19e2ff0505e
> <6>[ 3.341705] DMAR: DRHD base: 0x000000fed91000 flags: 0x1
> <6>[ 3.341711] DMAR: dmar1: reg_base_addr fed91000 ver 1:0 cap d2008c40660462 ecap f050da
> <6>[ 3.341713] DMAR: RMRR base: 0x0000009aa9f000 end: 0x0000009aabefff
> <6>[ 3.341716] DMAR: RMRR base: 0x0000009d000000 end: 0x0000009f7fffff
> <6>[ 3.341726] DMAR: No ATSR found
> <1>[ 3.341772] BUG: kernel NULL pointer dereference, address: 0000000000000038
> <1>[ 3.341774] #PF: supervisor write access in kernel mode
> <1>[ 3.341776] #PF: error_code(0x0002) - not-present page
> <6>[ 3.341777] PGD 0 P4D 0
> <4>[ 3.341780] Oops: 0002 [#1] SMP PTI
> <4>[ 3.341783] CPU: 1 PID: 1 Comm: swapper/0 Not tainted 5.9.0-devel+ #2
> <4>[ 3.341785] Hardware name: LENOVO 20HGS0TW00/20HGS0TW00, BIOS N1WET46S (1.25s ) 03/30/2018
> <4>[ 3.341790] RIP: 0010:intel_iommu_init+0xed0/0x1136
> <4>[ 3.341792] Code: fe e9 61 02 00 00 bb f4 ff ff ff e9 57 02 00 00 48 63 d1 48 c1 e2 04 48 03 50 20 48 8b 12 48 85 d2 74 0b 48 8b 92 d0 02 00 00 <48> 89 7a 38 ff c1 e9 15 f5 ff ff 48 c7 c7 60 99 ac a7 49 c7 c7 a0
> <4>[ 3.341796] RSP: 0000:ffff96d180073dd0 EFLAGS: 00010282
> <4>[ 3.341798] RAX: ffff8c91037a7d20 RBX: 0000000000000000 RCX: 0000000000000000
> <4>[ 3.341800] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffffffffffff
> <4>[ 3.341802] RBP: ffff96d180073e90 R08: 0000000000000001 R09: ffff8c91039fe3c0
> <4>[ 3.341804] R10: 0000000000000226 R11: 0000000000000226 R12: 000000000000000b
> <4>[ 3.341806] R13: ffff8c910367c650 R14: ffffffffa8426d60 R15: 0000000000000000
> <4>[ 3.341808] FS: 0000000000000000(0000) GS:ffff8c9107480000(0000) knlGS:0000000000000000
> <4>[ 3.341810] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
> <4>[ 3.341812] CR2: 0000000000000038 CR3: 00000004b100a001 CR4: 00000000003706e0
> <4>[ 3.341814] Call Trace:
> <4>[ 3.341820] ? _raw_spin_unlock_irqrestore+0x1f/0x30
> <4>[ 3.341824] ? call_rcu+0x10e/0x320
> <4>[ 3.341828] ? trace_hardirqs_on+0x2c/0xd0
> <4>[ 3.341831] ? rdinit_setup+0x2c/0x2c
> <4>[ 3.341834] ? e820__memblock_setup+0x8b/0x8b
> <4>[ 3.341836] pci_iommu_init+0x16/0x3f
> <4>[ 3.341839] do_one_initcall+0x46/0x1e4
> <4>[ 3.341842] kernel_init_freeable+0x169/0x1b2
> <4>[ 3.341845] ? rest_init+0x9f/0x9f
> <4>[ 3.341847] kernel_init+0xa/0x101
> <4>[ 3.341849] ret_from_fork+0x22/0x30
> <4>[ 3.341851] Modules linked in:
> <4>[ 3.341854] CR2: 0000000000000038
> <4>[ 3.341860] ---[ end trace 3653722a6f936f18 ]---
>
> I could track the problem down to the dev_iommu_priv_set call in the function
> init_no_remapping_devices in the path where !dmar_map_gfx. It turned out that
> the dev->iommu entry is NULL at this time.
>
> Lu Baolu <baolu.lu@linux.intel.com> suggested for dev_iommu_priv_set
> to automatically allocate the iommu entry by using the function
> dev_iommu_get to retrieve that pointer. This function allocates the
> entry if needed.
>
> Fixes: 01b9d4e21148 ("iommu/vt-d: Use dev_iommu_priv_get/set()")
> Signed-off-by: Torsten Hilbrich <torsten.hilbrich@secunet.com>
> Tested-by: Torsten Hilbrich <torsten.hilbrich@secunet.com>
> Link: https://lists.linuxfoundation.org/pipermail/iommu/2020-August/048098.html
> ---
> drivers/iommu/iommu.c | 22 ++++++++++++++++++++++
> include/linux/iommu.h | 11 ++---------
> 2 files changed, 24 insertions(+), 9 deletions(-)
>
> diff --git a/drivers/iommu/iommu.c b/drivers/iommu/iommu.c
> index 609bd25bf154..3edca2a31296 100644
> --- a/drivers/iommu/iommu.c
> +++ b/drivers/iommu/iommu.c
> @@ -2849,3 +2849,25 @@ int iommu_sva_get_pasid(struct iommu_sva *handle)
> return ops->sva_get_pasid(handle);
> }
> EXPORT_SYMBOL_GPL(iommu_sva_get_pasid);
> +
> +void *dev_iommu_priv_get(struct device *dev)
> +{
> + struct dev_iommu *param = dev_iommu_get(dev);
> +
> + if (WARN_ON(!param))
> + return ERR_PTR(-ENOMEM);
> +
> + return param->priv;
> +}
> +EXPORT_SYMBOL_GPL(dev_iommu_priv_get);
Hmm, I'm not convinced by this - it looks it would only paper over real
driver bugs. If the driver's calling dev_iommu_priv_get(), it presumably
wants to actually *do* something with its private data - if it somehow
manages to make that call before it's processed ->probe_device(), it
can't possibly get *meaningful* data, so even if we stop that call from
crashing how can it result in correct behaviour?
And if the device isn't managed by that IOMMU driver, then it shouldn't
be calling dev_iommu_priv_get() blindly in the first place (and
allocating redundant structures would just be a waste).
> +void dev_iommu_priv_set(struct device *dev, void *priv)
> +{
> + struct dev_iommu *param = dev_iommu_get(dev);
> +
> + if (WARN_ON(!param))
> + return;
> +
> + param->priv = priv;
> +}
> +EXPORT_SYMBOL_GPL(dev_iommu_priv_set);
In this direction it's at least not completely illogical, but it's still
indicative of a driver operating very much outside the expected API
flow. If a driver has special knowledge of devices it manages before
it's seen ->probe_device() for them then fair enough, but it should
probably be that driver's responsibility to manage any "out of order"
usage of its private data as a special case, rather than pretending that
this is expected common behaviour. Again, for most drivers it's more
likely to just mask bugs than be genuinely useful.
Robin.
> diff --git a/include/linux/iommu.h b/include/linux/iommu.h
> index fee209efb756..e3e725cf64b3 100644
> --- a/include/linux/iommu.h
> +++ b/include/linux/iommu.h
> @@ -609,15 +609,8 @@ static inline void dev_iommu_fwspec_set(struct device *dev,
> dev->iommu->fwspec = fwspec;
> }
>
> -static inline void *dev_iommu_priv_get(struct device *dev)
> -{
> - return dev->iommu->priv;
> -}
> -
> -static inline void dev_iommu_priv_set(struct device *dev, void *priv)
> -{
> - dev->iommu->priv = priv;
> -}
> +void *dev_iommu_priv_get(struct device *dev);
> +void dev_iommu_priv_set(struct device *dev, void *priv);
>
> int iommu_probe_device(struct device *dev);
> void iommu_release_device(struct device *dev);
>
_______________________________________________
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https://lists.linuxfoundation.org/mailman/listinfo/iommu
^ permalink raw reply [flat|nested] 8+ messages in thread
* Re: [PATCH] iommu: Allocate dev_iommu before accessing priv data
2020-09-02 11:31 ` Robin Murphy
@ 2020-09-03 6:46 ` Lu Baolu
0 siblings, 0 replies; 8+ messages in thread
From: Lu Baolu @ 2020-09-03 6:46 UTC (permalink / raw)
To: Robin Murphy, Torsten Hilbrich, Joerg Roedel; +Cc: iommu
Hi Robin,
On 9/2/20 7:31 PM, Robin Murphy wrote:
> On 2020-09-02 06:32, Torsten Hilbrich wrote:
>> After updating from v5.8 to v5.9-rc2 I noticed some problems when
>> booting a system with kernel cmdline "intel_iommu=on,igfx_off".
>>
>> The following stacktrace was produced:
>>
>> <6>[ 0.000000] Command line: BOOT_IMAGE=/isolinux/bzImage
>> console=tty1 intel_iommu=on,igfx_off
>> ...
>> <6>[ 3.341682] DMAR: Host address width 39
>> <6>[ 3.341684] DMAR: DRHD base: 0x000000fed90000 flags: 0x0
>> <6>[ 3.341702] DMAR: dmar0: reg_base_addr fed90000 ver 1:0 cap
>> 1c0000c40660462 ecap 19e2ff0505e
>> <6>[ 3.341705] DMAR: DRHD base: 0x000000fed91000 flags: 0x1
>> <6>[ 3.341711] DMAR: dmar1: reg_base_addr fed91000 ver 1:0 cap
>> d2008c40660462 ecap f050da
>> <6>[ 3.341713] DMAR: RMRR base: 0x0000009aa9f000 end: 0x0000009aabefff
>> <6>[ 3.341716] DMAR: RMRR base: 0x0000009d000000 end: 0x0000009f7fffff
>> <6>[ 3.341726] DMAR: No ATSR found
>> <1>[ 3.341772] BUG: kernel NULL pointer dereference, address:
>> 0000000000000038
>> <1>[ 3.341774] #PF: supervisor write access in kernel mode
>> <1>[ 3.341776] #PF: error_code(0x0002) - not-present page
>> <6>[ 3.341777] PGD 0 P4D 0
>> <4>[ 3.341780] Oops: 0002 [#1] SMP PTI
>> <4>[ 3.341783] CPU: 1 PID: 1 Comm: swapper/0 Not tainted
>> 5.9.0-devel+ #2
>> <4>[ 3.341785] Hardware name: LENOVO 20HGS0TW00/20HGS0TW00, BIOS
>> N1WET46S (1.25s ) 03/30/2018
>> <4>[ 3.341790] RIP: 0010:intel_iommu_init+0xed0/0x1136
>> <4>[ 3.341792] Code: fe e9 61 02 00 00 bb f4 ff ff ff e9 57 02 00
>> 00 48 63 d1 48 c1 e2 04 48 03 50 20 48 8b 12 48 85 d2 74 0b 48 8b 92
>> d0 02 00 00 <48> 89 7a 38 ff c1 e9 15 f5 ff ff 48 c7 c7 60 99 ac a7 49
>> c7 c7 a0
>> <4>[ 3.341796] RSP: 0000:ffff96d180073dd0 EFLAGS: 00010282
>> <4>[ 3.341798] RAX: ffff8c91037a7d20 RBX: 0000000000000000 RCX:
>> 0000000000000000
>> <4>[ 3.341800] RDX: 0000000000000000 RSI: 0000000000000000 RDI:
>> ffffffffffffffff
>> <4>[ 3.341802] RBP: ffff96d180073e90 R08: 0000000000000001 R09:
>> ffff8c91039fe3c0
>> <4>[ 3.341804] R10: 0000000000000226 R11: 0000000000000226 R12:
>> 000000000000000b
>> <4>[ 3.341806] R13: ffff8c910367c650 R14: ffffffffa8426d60 R15:
>> 0000000000000000
>> <4>[ 3.341808] FS: 0000000000000000(0000)
>> GS:ffff8c9107480000(0000) knlGS:0000000000000000
>> <4>[ 3.341810] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
>> <4>[ 3.341812] CR2: 0000000000000038 CR3: 00000004b100a001 CR4:
>> 00000000003706e0
>> <4>[ 3.341814] Call Trace:
>> <4>[ 3.341820] ? _raw_spin_unlock_irqrestore+0x1f/0x30
>> <4>[ 3.341824] ? call_rcu+0x10e/0x320
>> <4>[ 3.341828] ? trace_hardirqs_on+0x2c/0xd0
>> <4>[ 3.341831] ? rdinit_setup+0x2c/0x2c
>> <4>[ 3.341834] ? e820__memblock_setup+0x8b/0x8b
>> <4>[ 3.341836] pci_iommu_init+0x16/0x3f
>> <4>[ 3.341839] do_one_initcall+0x46/0x1e4
>> <4>[ 3.341842] kernel_init_freeable+0x169/0x1b2
>> <4>[ 3.341845] ? rest_init+0x9f/0x9f
>> <4>[ 3.341847] kernel_init+0xa/0x101
>> <4>[ 3.341849] ret_from_fork+0x22/0x30
>> <4>[ 3.341851] Modules linked in:
>> <4>[ 3.341854] CR2: 0000000000000038
>> <4>[ 3.341860] ---[ end trace 3653722a6f936f18 ]---
>>
>> I could track the problem down to the dev_iommu_priv_set call in the
>> function
>> init_no_remapping_devices in the path where !dmar_map_gfx. It turned
>> out that
>> the dev->iommu entry is NULL at this time.
>>
>> Lu Baolu <baolu.lu@linux.intel.com> suggested for dev_iommu_priv_set
>> to automatically allocate the iommu entry by using the function
>> dev_iommu_get to retrieve that pointer. This function allocates the
>> entry if needed.
>>
>> Fixes: 01b9d4e21148 ("iommu/vt-d: Use dev_iommu_priv_get/set()")
>> Signed-off-by: Torsten Hilbrich <torsten.hilbrich@secunet.com>
>> Tested-by: Torsten Hilbrich <torsten.hilbrich@secunet.com>
>> Link:
>> https://lists.linuxfoundation.org/pipermail/iommu/2020-August/048098.html
>> ---
>> drivers/iommu/iommu.c | 22 ++++++++++++++++++++++
>> include/linux/iommu.h | 11 ++---------
>> 2 files changed, 24 insertions(+), 9 deletions(-)
>>
>> diff --git a/drivers/iommu/iommu.c b/drivers/iommu/iommu.c
>> index 609bd25bf154..3edca2a31296 100644
>> --- a/drivers/iommu/iommu.c
>> +++ b/drivers/iommu/iommu.c
>> @@ -2849,3 +2849,25 @@ int iommu_sva_get_pasid(struct iommu_sva *handle)
>> return ops->sva_get_pasid(handle);
>> }
>> EXPORT_SYMBOL_GPL(iommu_sva_get_pasid);
>> +
>> +void *dev_iommu_priv_get(struct device *dev)
>> +{
>> + struct dev_iommu *param = dev_iommu_get(dev);
>> +
>> + if (WARN_ON(!param))
>> + return ERR_PTR(-ENOMEM);
>> +
>> + return param->priv;
>> +}
>> +EXPORT_SYMBOL_GPL(dev_iommu_priv_get);
>
> Hmm, I'm not convinced by this - it looks it would only paper over real
> driver bugs. If the driver's calling dev_iommu_priv_get(), it presumably
> wants to actually *do* something with its private data - if it somehow
> manages to make that call before it's processed ->probe_device(), it
> can't possibly get *meaningful* data, so even if we stop that call from
> crashing how can it result in correct behaviour?
>
> And if the device isn't managed by that IOMMU driver, then it shouldn't
> be calling dev_iommu_priv_get() blindly in the first place (and
> allocating redundant structures would just be a waste).
Fair enough. The dev_iommu_priv_g(s)et() apis shouldn't be abused.
>
>> +void dev_iommu_priv_set(struct device *dev, void *priv)
>> +{
>> + struct dev_iommu *param = dev_iommu_get(dev);
>> +
>> + if (WARN_ON(!param))
>> + return;
>> +
>> + param->priv = priv;
>> +}
>> +EXPORT_SYMBOL_GPL(dev_iommu_priv_set);
>
> In this direction it's at least not completely illogical, but it's still
> indicative of a driver operating very much outside the expected API
> flow. If a driver has special knowledge of devices it manages before
> it's seen ->probe_device() for them then fair enough, but it should
> probably be that driver's responsibility to manage any "out of order"
> usage of its private data as a special case, rather than pretending that
> this is expected common behaviour. Again, for most drivers it's more
> likely to just mask bugs than be genuinely useful.
Agreed. I will post a fix by addressing this bug in the VT-d driver.
Best regards,
baolu
>
> Robin.
>
>> diff --git a/include/linux/iommu.h b/include/linux/iommu.h
>> index fee209efb756..e3e725cf64b3 100644
>> --- a/include/linux/iommu.h
>> +++ b/include/linux/iommu.h
>> @@ -609,15 +609,8 @@ static inline void dev_iommu_fwspec_set(struct
>> device *dev,
>> dev->iommu->fwspec = fwspec;
>> }
>> -static inline void *dev_iommu_priv_get(struct device *dev)
>> -{
>> - return dev->iommu->priv;
>> -}
>> -
>> -static inline void dev_iommu_priv_set(struct device *dev, void *priv)
>> -{
>> - dev->iommu->priv = priv;
>> -}
>> +void *dev_iommu_priv_get(struct device *dev);
>> +void dev_iommu_priv_set(struct device *dev, void *priv);
>> int iommu_probe_device(struct device *dev);
>> void iommu_release_device(struct device *dev);
>>
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^ permalink raw reply [flat|nested] 8+ messages in thread
end of thread, other threads:[~2020-09-03 6:52 UTC | newest]
Thread overview: 8+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2020-08-31 11:03 [Regression] [PATCH] iommu: Avoid crash in init_no_remapping_devices if iommu is NULL Torsten Hilbrich
2020-09-01 2:02 ` Lu Baolu
2020-09-01 14:41 ` Torsten Hilbrich
2020-09-02 2:45 ` Lu Baolu
2020-09-02 5:32 ` [PATCH] iommu: Allocate dev_iommu before accessing priv data Torsten Hilbrich
2020-09-02 11:31 ` Robin Murphy
2020-09-03 6:46 ` Lu Baolu
2020-09-02 2:45 ` [Regression] [PATCH] iommu: Avoid crash in init_no_remapping_devices if iommu is NULL Lu Baolu
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