linux-kernel - Re: kernel BUG at mm/usercopy.c when using usbip

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Message-ID: <69add22a-8f42-aa1c-6a5e-611bb216f72b@nitrokey.com>
Date:   Thu, 12 Jan 2023 17:08:38 +0100
From:   Sosthène Guédon <sosthene@...rokey.com>
To:     Shuah Khan <skhan@...uxfoundation.org>,
        Valentina Manea <valentina.manea.m@...il.com>,
        Shuah Khan <shuah@...nel.org>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        linux-usb@...r.kernel.org, linux-kernel@...r.kernel.org
Cc:     Robin Krahl <robin@...rokey.com>
Subject: Re: kernel BUG at mm/usercopy.c when using usbip

On 1/12/23 16:13, Shuah Khan wrote:
> Thank you for reporting the problem. I will take a look and
> get back to you with possible fix. Will you be able to test
> fixes?
>
> thanks,
> -- Shuah

I can probably build then insmod a custom build of just vhci-hcd (or 
some other module), but I'm not sure I want to reboot in a completely 
new kernel and risk having a laptop that doesn't boot. If necessary I 
might try to reproduce the bug in a VM.

> Please send me complete dmesg and your kernel config.
>
> thanks,
> -- Shuah

Yes, see attachment for the full dmesg. I'm not sure what you mean by 
kernel config. I attached the config at /proc/config.gz and the results 
of the ver_linux script mentioned in the bug reporting documentation.

Thanks!

-- 
Sosthène Guédon,
Software engineer

Nitrokey GmbH
https://www.nitrokey.com

Email:sosthene@...rokey.com
Phone: +49 30 1205 3434

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View attachment "ver_linux" of type "text/plain" (2479 bytes)

View attachment "kernel_config" of type "text/plain" (258824 bytes)

View attachment "full_dmesg.log" of type "text/x-log" (128171 bytes)