On Wed, Feb 26, 2025 at 10:10:43AM +0100, Lukas Wunner wrote: > On Wed, Feb 26, 2025 at 10:44:04AM +0200, Mika Westerberg wrote: > > [Meteor Lake host] <--> [TB 4 dock] <--> [TB 3 NVMe] > [...] > > I added "no_console_suspend" to the command line and the did sysrq-w to > > get list of blocked tasks. I've attached it just in case it is needed. > [...] > > This looks like the deadlock we've had for years when hot-removing > nested hotplug ports. > > If you attach only a single device to the host, I guess the issue > does not occur, right? Yes. > Previous attempts to fix this: > > https://lore.kernel.org/all/4c882e25194ba8282b78fe963fec8faae7cf23eb.1529173804.git.lukas@xxxxxxxxx/ > > https://lore.kernel.org/all/20240612181625.3604512-1-kbusch@xxxxxxxx/ Well, it does not happen if I revert the commit so isn't that a regresssion?
