[Bug 220016] USB devices plugged into USB hubs on 6.14.2-300.fc42.x86_64 do not work

[bugzilla-daemon@kernel.org]

https://bugzilla.kernel.org/show_bug.cgi?id=220016

--- Comment #16 from Steven A. Falco (stevenfalco@gmail.com) ---
I ran the tests you requested.  I attached /proc/iomem for 6.13.10 both with
realloc=off and realloc=on.  I repeated the tests with 6.14.2.

For both kernel versions, realloc=on results in a non-functional USB keyboard.

For both kernels, realloc=off works properly.

I had been running Fedora 41 with their 6.13 kernel.  It was compiled with
realloc=off.

I then upgraded to Fedora 42 with their 6.14 kernel.  It was compiled with
realloc=on.

Therefore, this is not a new problem with 6.14; it is just that the kernel
option was changed in Fedora 42.

I cannot comment about 6.15 but I think Joe was the one who tried it.  Perhaps
he can comment on that.  However, since both 6.13 and 6.14 don't work if
realloc=on, it probably doesn't matter.

Please let me know if there is any other data you need.

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