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detected on cm4 raspberry-pi - aarch64 and arm-kernel 5.10.
**remap_pfn_range** will (re)map memory allocated with **dma_alloc_coherent** with wrong tlb cache settings.
A user mode process rea…
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Hi,
We've come across this driver as a potential way of passing a userspace dma buffer to V4L2 instead of V4L2's default mmap mode which is rather slow. Here I see someone's done this achieving a 15x…
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Hello all,
first off: very cool that _nxdrvlinux_ is on Github now!
Actual question: we have been trying to get `xChannelIORead` working in _DMA_ mode to see if this will result in lower CPU loa…
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## CVE-2019-3837 - Medium Severity Vulnerability
Vulnerable Libraries - linuxlinux-3.0.40, linux-stable-rtv3.8.6
Vulnerability Details
It was found that the net_dma code in tcp_recvmsg()…
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**Is your feature request related to a problem? Please describe.**
This is not a FW feature but a userspace feature and here is probably the best place to log it for the moment.
There are now many…
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Snabb Switch needs to play nicer with the IOMMU.
The Linux kernel has three IOMMU modes available:
- `off`: IOMMU disabled.
- `passthrough`: IOMMU used only for passing PCI devices into virtual machi…
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### Describe the bug
Run into this issue at first while testing NVMe performance with fio on my custom build - on a sequential read having queue depth setting (`--iodepth`) > 4 (starting to happen re…
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see http://osdir.com/ml/linux.network.general/2003-05/msg00016.html
```
If your application just needs to look at the header of lots of
packets, I would suggest using AF_PACKET's mmap feature with a …
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At current, it appears I'm the last person monitoring the repos, and as such, I'm going to attempt to shore this up with my extremely limited knowledge and abilities once one of my other large project…
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## CVE-2019-3837 - Medium Severity Vulnerability
Vulnerable Libraries - linuxlinux-3.0.40, linux-stable-rtv3.8.6
Vulnerability Details
It was found that the net_dma code in tcp_recvmsg()…