linux-kernel - Re: crash by cdc_acm driver in kernels 4.8-rc1/5

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Message-ID: <008bd98d-fb0c-e1c8-8e0a-c16e0eecf641@gmail.com>
Date:   Tue, 22 Nov 2016 00:49:51 +0100
From:   poma <pomidorabelisima@...il.com>
To:     wim@....tudelft.nl, Oliver Neukum <oneukum@...e.com>
Cc:     linux-kernel@...r.kernel.org, linux-usb@...r.kernel.org
Subject: Re: crash by cdc_acm driver in kernels 4.8-rc1/5

On 21.11.2016 21:23, Wim Osterholt wrote:
> On Mon, Nov 21, 2016 at 04:58:25PM +0100, Wim Osterholt wrote:
>>
>> I didn't find traces of kernel-4.9-rc5 being ran on any of my laptops, so I
>> can't have seen a crash on rc5. It seems rc5 and rc6 is safe now.
> 
> Neither 4.8.10, nor 4.8.9 show the bug.
> It must be a bug ouside cdc_acm that they have fixed. (a late propagation of
> the IRQ-penalty-bug-fix maybe?)
> 
> I'm rebuilding 4.8.8 now.
> 
> Groeten, Wim.
> 


After all the patching and testing I concluded the same, 
breakage came and is gone outside drivers/usb/class/
https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/diff/?id=v4.9-rc5&id2=v4.9-rc4