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sonic-buildimage/device/dell
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Aravind Mani 2865fd4c72
[DellEMC] DMA errors are seen when loading bullseye kernel (#9641) 
Following errors are seen continuously on SMBus controller when loading bullseye kernel.

[ 273.643046] DMAR: [DMA Write] Request device [00:12.0] PASID ffffffff fault addr 0 [fault reason 05] PTE Write access is not set
[ 273.785784] DMAR: DRHD: handling fault status reg 2
[ 273.844072] DMAR: [DMA Write] Request device [00:12.0] PASID ffffffff fault addr 0 [fault reason 05] PTE Write access is not set
[ 273.986804] DMAR: DRHD: handling fault status reg 2
[ 274.045101] DMAR: [DMA Write] Request device [00:12.0] PASID ffffffff fault addr 0 [fault reason 05] PTE Write access is not set
[ 274.187789] DMAR: DRHD: handling fault status reg 2

root@sonic:~# lspci -s 00:12.0 -vv
00:12.0 System peripheral: Intel Corporation Atom Processor C3000 Series SMBus Contoller - Host (rev 11)

Issue was not seen in buster. 

Modified platform specific installer.conf to turn off io_mmu
2022-01-03 08:47:13 -08:00
..
x86_64-dell_s6000_s1220-r0 DellEMC: S6000, S6100, Z9332f - Update platform.json (#9459) 2022-01-02 22:31:34 -08:00
x86_64-dell_s6100_c2538-r0 DellEMC: S6100, S6000 - Platform API implementation (#9586) 2022-01-02 22:38:35 -08:00
x86_64-dell_z9100_c2538-r0 Add platform_asic file to each platform folder in sonic-device-data based package (#8542) 2021-10-08 19:27:48 -07:00
x86_64-dellemc_n3248pxe_c3338-r0 [DellEMC] DMA errors are seen when loading bullseye kernel (#9641) 2022-01-03 08:47:13 -08:00
x86_64-dellemc_n3248te_c3338-r0 [DellEMC] DMA errors are seen when loading bullseye kernel (#9641) 2022-01-03 08:47:13 -08:00
x86_64-dellemc_s5212f_c3538-r0 [DellEMC] DMA errors are seen when loading bullseye kernel (#9641) 2022-01-03 08:47:13 -08:00
x86_64-dellemc_s5224f_c3538-r0 [DellEMC] DMA errors are seen when loading bullseye kernel (#9641) 2022-01-03 08:47:13 -08:00
x86_64-dellemc_s5232f_c3538-r0 [DellEMC] DMA errors are seen when loading bullseye kernel (#9641) 2022-01-03 08:47:13 -08:00
x86_64-dellemc_s5248f_c3538-r0 [DellEMC] DMA errors are seen when loading bullseye kernel (#9641) 2022-01-03 08:47:13 -08:00
x86_64-dellemc_s5296f_c3538-r0 [DellEMC] DMA errors are seen when loading bullseye kernel (#9641) 2022-01-03 08:47:13 -08:00
x86_64-dellemc_z9264f_c3538-r0 [DellEMC] DMA errors are seen when loading bullseye kernel (#9641) 2022-01-03 08:47:13 -08:00
x86_64-dellemc_z9332f_d1508-r0 DellEMC: S6000, S6100, Z9332f - Update platform.json (#9459) 2022-01-02 22:31:34 -08:00