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Groups > linux.debian.kernel > #73294 > unrolled thread
| Started by | Paul Gevers <elbrus@debian.org> |
|---|---|
| First post | 2021-10-14 15:40 +0200 |
| Last post | 2021-10-14 15:40 +0200 |
| Articles | 1 — 1 participant |
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Re: Bug#995932: upgrade-reports: 3.0 USB ports unusable after upgrade Paul Gevers <elbrus@debian.org> - 2021-10-14 15:40 +0200
| From | Paul Gevers <elbrus@debian.org> |
|---|---|
| Date | 2021-10-14 15:40 +0200 |
| Subject | Re: Bug#995932: upgrade-reports: 3.0 USB ports unusable after upgrade |
| Message-ID | <D897H-3lc-5@gated-at.bofh.it> |
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Control: reassign -1 src:linux Hi, On 08-10-2021 13:06, Lorenzo Iannuzzi wrote: > - Were there any problems with the system after upgrading? > USB 3.0 ports stop working at boot or as soon as I plug more than one device. > Devices attached to them are not recognized and not listed with lsusb. I had no > problems before the upgrade. > On logs I found: > kernel: DMAR: DRHD: handling fault status reg 2 > kernel: DMAR: [DMA Read] Request device [04:00.0] PASID ffffffff fault add > r fff7e000 [fault reason 06] PTE Read access is not set > kernel: xhci_hcd 0000:04:00.0: WARNING: Host System Error > > I can avoid this issue adding "iommu=soft" to kernel parameters at boot. The signs of this issue hint towards the kernel, hence reassigning there. Paul
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