From: Michal Pecio <michal.pecio@gmail.com>
To: wenxiong@linux.ibm.com
Cc: mathias.nyman@intel.com, gregkh@linuxfoundation.org,
linux-usb@vger.kernel.org, linux-kernel@vger.kernel.org,
stable@vger.kernel.org, wenxiong@us.ibm.com,
Brian King <brking@linux.vnet.ibm.com>,
Samuel Mendoza-Jonas <sam@mendozajonas.com>,
Joel Stanley <joel@jms.id.au>
Subject: Re: [PATCH] xhci: Reset controller on xhci shutdown
Date: Fri, 2 Oct 2026 10:29:31 +0200 [thread overview]
Message-ID: <20261002102931.3cb06009.michal.pecio@gmail.com> (raw)
In-Reply-To: <20261001222527.11742-1-wenxiong@linux.ibm.com>
On Thu, 1 Oct 2026 18:25:27 -0400, wenxiong@linux.ibm.com wrote:
> From: Wen Xiong <wenxiong@linux.ibm.com>
>
> Fixes kexec boot. Without a hard reset, some USB chips will fail to
> initialize in a kexec booted kernel.
What exactly happens after kexec?
Why a PCI reset in particular?
Are we sure it's not a bug elsewhere?
Regards,
Michal
next prev parent reply other threads:[~2026-10-02 8:29 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-10-01 22:25 [PATCH] xhci: Reset controller on xhci shutdown wenxiong
2026-10-01 22:40 ` Mathias Nyman
2026-10-02 14:08 ` Wen Xiong
2026-10-02 8:29 ` Michal Pecio [this message]
2026-10-02 14:05 ` Wen Xiong
2026-10-02 14:18 ` Michal Pecio
2026-10-05 13:01 ` Wen Xiong
2026-10-06 10:55 ` Michal Pecio
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