Thanks for identifying the fix! This should go into the main Ubuntu
kernel, not just the raspi derivative.
** Package changed: linux-raspi (Ubuntu) => linux (Ubuntu)
** Also affects: linux (Ubuntu Jammy)
Importance: Undecided
Status: New
** Changed in: linux (Ubuntu)
Status: New => Invalid
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https://bugs.launchpad.net/bugs/1981390
Title:
Mass Storage Gadget driver truncates device >2TB
Status in linux package in Ubuntu:
Invalid
Status in linux source package in Jammy:
New
Bug description:
I tried to use f_mass_storage to expose a 16TB hard drive attached to
Raspberry Pi to another computer.
On the remote computer the recognised drive has incorrect capacity and the
data is truncated.
After some debugging I noted the problem is caused by a bug in the
read capacity function of f_mass_storage in kernel version prior to
5.15, which had already been fixed upstream in mainline kernel since
v5.16
https://lore.kernel.org/all/[email protected]/
I tried the kernel from https://github.com/raspberrypi/linux version
rpi-5.16.y and confirmed that the problem is fixed at v5.16.
I wonder if the fix can be backported to the Ubuntu kernel.
Thank you very much!
Current kernel package version: linux-raspi (5.15.0-1011.13) jammy
Hardware: Raspberry Pi 4B
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