Linux driver of vt6656 from staging area causes system to freeze.

I managed to get a device vt6656 (USB WiFi adapter). The device works OK when the computer is started and driver loaded. When the WLAN is disabled the system freezes often. I am using ubuntu 20.04 with kernel 5.17.0-rc1 x86_64 branch: staging-testing After some tries I found out that it is a

Re: How to debug stuck read?

trešd., 2022. g. 2. febr., plkst. 21:13 — lietotājs Matthew Wilcox () rakstīja: > > On Wed, Feb 02, 2022 at 07:15:14PM +0200, Dāvis Mosāns wrote: > > I have a corrupted file on BTRFS which has CoW disabled thus no > > checksum. Trying to read this file causes the process to get stuck > > forever.

How to debug stuck read?

Hi, I have a corrupted file on BTRFS which has CoW disabled thus no checksum. Trying to read this file causes the process to get stuck forever. It doesn't return EIO. How can I find out why it gets stuck? $ ddrescue -b 1 currupted_file /tmp/temp GNU ddrescue 1.26 Press Ctrl-C to interrupt