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From:   Paulo Alcantara <pc@cjr.nz>
To:     Julian Sikorski <belegdol@gmail.com>,
        ronnie sahlberg <ronniesahlberg@gmail.com>
Cc:     CIFS <linux-cifs@vger.kernel.org>
Subject: Re: kernel-5.18.8 breaks cifs mounts
In-Reply-To: <fee59438-7b4a-0a24-f116-07c2ac39a3ad@gmail.com>
References: <211885e7-1823-9118-836b-169c7163d7c2@gmail.com>
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 <fee59438-7b4a-0a24-f116-07c2ac39a3ad@gmail.com>
Date:   Thu, 30 Jun 2022 14:55:10 -0300
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Julian Sikorski <belegdol@gmail.com> writes:

> Not much is there:
>
> Jun 30 18:19:34 snowball3 kernel: CIFS: Attempting to mount 
> \\odroidxu4.local\julian
>
> Jun 30 18:19:34 snowball3 kernel: CIFS: VFS: cifs_mount failed w/return 
> code = -22
>
>
> I tried reverting 16d5d91 as it was the only commit referencing smb, but 
> it did not help unfortunately.

Could you please run

	echo 'module cifs +p' > /sys/kernel/debug/dynamic_debug/control
	echo 'file fs/cifs/* +p' > /sys/kernel/debug/dynamic_debug/control
	echo 1 > /proc/fs/cifs/cifsFYI
	echo 1 > /sys/module/dns_resolver/parameters/debug
	dmesg --clear
	tcpdump -s 0 -w trace.pcap port 445 & pid=$!
	mount ...
	kill $pid
	dmesg > trace.log

and then send trace.log and trace.pcap.

What SMB server and version?