Re: [10.0_STABLE] Hard lock

[Michael van Elst <mlelstv%serpens.de@localhost>]

On Thu, Nov 21, 2024 at 08:26:11PM +0100, BERTRAND Joël wrote:

> Keyboard (0xc31c), rev 1.10/64.00, addr e39c0 itt 205
> Nov 21 18:45:16 legendre /netbsd: [  77.7244616] destroy_ccbs: ccb
> 0xffff9c0021c
> e3b38 itt 206
> Nov 21 18:45:16 legendre /netbsd: [  77.7244616] destroy_ccbs: ccb
> 0xffff9c0021c
> e3cb0 itort 10 configuration 1 interface 1
> Nov 21 18:45:16 legendre /netbsd: [   2.2043088] uhidev2: Logitech
> (0x046d) USB

Except for the wild mixup of early kernel messages (at time ~2.204)
with iscsi debug messages (at ~77.724) this only hints to a cleanup
of a session.

This can happen when the first connection of a session cannot be
created or when a functional session is shut down and has closed
its last connection, but the log doesn't tell which it is.

When a session cannot be created, then nothing should happen.
The disk device (sdX) is just never attached.

When a session is shut down, the disk device (sdX) is detached
(just like something unplugging a USB stick). I'm not sure what
happens when the disk is detached while in use (e.g. is still
mounted) even when we did make a lot of progress in that area.


Greetings,
-- 
                                Michael van Elst
Internet: mlelstv%serpens.de@localhost
                                "A potential Snark may lurk in every tree."