答复: 答复: 答复: [Consulting about: xHCI host dies on device unplug]

[Zhangzhansheng <zhang.zhansheng@h3c.com>]

Mathias：

Thank you very much!

> This issue was resolved in 5.19 kernel with patch:
> 25355e046d29 xhci: use generic command timer for stop endpoint commands.

> After this patch the timer is started when xHC start processing the command, not when driver queues it.
> I strongly recommend trying a more recent kernel where all these issues are fixed already.
 
I see 5.19 kernel has done what you say.

Because the kernel version of our company is 4.65 , I need to put the patch to our 4.65 kernel we used.
 
Today compared to the latest kernel is 6.7, I found there are a lot of changes for usb module between kernel 4.65 and 6.7.

Could you provide me for the issues patch.




-----邮件原件-----
发件人: Mathias Nyman [mailto:mathias.nyman@linux.intel.com] 
发送时间: 2024年1月24日 21:49
收件人: zhangzhansheng (操作系统开发部部门, RD) <zhang.zhansheng@h3c.com>; Ladislav Michl <oss-lists@triops.cz>
抄送: linux-usb@vger.kernel.org; Sneeker Yeh <sneeker.yeh@gmail.com>; wangxiaoqing (操作系统开发部/OM, RD) <wangxiaoqing@h3c.com>; xinhaining (操作系统开发部/OM, RD) <xinhaining@h3c.com>
主题: Re: 答复: 答复: [Consulting about: xHCI host dies on device unplug]

On 24.1.2024 13.42, Zhangzhansheng wrote:
> Mathias：
> 
> 
> In regard to the question “What the reason of the usb host controller handing the stop endpoint command timeout maybe two a) and b).”Just to add the follow  one :
> When the problem arising, the function of “xhci_halt “ operated the host controller successfully. So I think the usb host controller should be ok.
> 
> So, I gussess that the usb host controller has no enough time to handle with a large number of xhci command.
> 

This issue was resolved in 5.19 kernel with patch:
25355e046d29 xhci: use generic command timer for stop endpoint commands.

After this patch the timer is started when xHC start processing the command, not when driver queues it.

I strongly recommend trying a more recent kernel where all these issues are fixed already.

Thanks
Mathias