12 ms·

Thunderbolt devices appear in the OS as a PCIe switch, so you need two additional bus numbers (one for the Switch Upstream Port and one for the Switch Downstrea

• nneonneo 4y ago
  It sounds like the pause/unpause might be the way to fix this properly, since trying to be heuristically smarter sounds like a recipe for never-ending corner case bugs like the OP’s issue. The patch for pausing and unpausing seems quite reasonable, except that it does require driver support (unsurprising - you’re literally reallocating the resources used by the driver!). I suppose if you had at least a few movable devices then you should be ok in the event of a hotplug event, so you’d have to hope that enough drivers bother to support the feature. I wonder what is necessary to get people to care about the patch enough to fix it up and mainline it? I suppose the problem it fixes is still niche enough that not so many people are clamoring for the fix.
  • AnIdiotOnTheNet 4y ago
    What is the point in having all of the drivers be open sourced and mainlined if we're not willing to fix them to support this?
    • blueflow 4y ago
      • jodrellblank 4y ago
        You are free to comment on the question raised, instead of a dismissive empty ad-hom.
        • arghwhat 4y ago
          While tongue in cheek, the answer is accurate: open source does not mean "free service contract", it means that you can take the code and modify yourself (and preferably upstream the fix). Patches come both from vendors and users experiencing an issue. Vendors take care of most things, but for esoteric problems you might only have a handful of people experiencing it. The vendor is unlikely to care, so if you do not write the patch or pay someone to do it, who will? Still better than the competition, where such problems will never be fixed unless it generates sufficient bad PR...
          • jodrellblank 4y ago
            You're doing the same thing, dragging the original conversation off into berating the commentor for not fixing it themselves because you owe them nothing and they shouldn't be so entitled. > "Still better than the competition, where such problems will never be fixed unless it generates sufficient bad PR..." The competition comes under "pay someone else to do it".
            • elsjaako 4y ago
              What OS are you using where you can get the vendor to implement kernel features to fix obscure driver issues? I'm sure there's an amount of money you can throw at Microsoft to get something done. I don't know how much it is, but I'm guessing it's more than it would cost to find a vendor to do it for Linux. The serious answer to " What is the point in having all of the drivers be open sourced and mainlined if we're not willing to fix them to support this?" is "There are many points to this, but one of them is that it's possible to fix them to support it, if someone wants to put in the effort. It's worth something that it's theoretically possible if you really need it, even if no one else has done it yet.". The answer "You can do it yourself" is meant to help them understand "Anyone can do it, someone needs to step up to the plate. But it's also true that it costs resources. If you're wondering why no one else has done it yet, it's the same reason you haven't done it yet".
• mrb 4y ago
  The key takeaway, especially for the author who wants things to "just work", is that he should have used a USB external disk, instead of a Thunderbolt external disk. OSes tend to have more issues with Thunderbolt disks (such as this issue you explained in details) than with USB disks, because the latter is more common, so more corner case bugs have been eliminated.
  • bhewes 4y ago
    Yeah, first thing I thought was oh that drive looks esoteric.
• fabiensanglard 4y ago
  Any book or documentation you recommend to read to someone interested in getting involved?