Ubuntu
linux-hwe-5.11 package

  1. Bug #1931001
  2. Comment #65

Comment 65 for bug 1931001

Revision history for this message
In , jarkko.nikula (jarkko.nikula-linux-kernel-bugs) wrote :

Could you try attached patch what interrupt statuses it will print in case of interrupt storm? It's rate limited debug print so it shouldn't flood the dmesg.

You need to have CONFIG_DYNAMIC_DEBUG=y in your kernel config and either enable the debug print in runtime by following:

mount none /sys/kernel/debug -t debugfs
echo -n "func i801_isr +p" >/sys/kernel/debug/dynamic_debug/control

or by appending that to your kernel command line:
i2c_i801.dyndbg="func i801_isr +p"