From: Wen Xiong <wenxiong@linux.ibm.com>
To: Michal Pecio <michal.pecio@gmail.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: Mon, 05 Oct 2026 08:01:46 -0500 [thread overview]
Message-ID: <55a53022d1c6f671a3ed549d8cf7cd1a@linux.ibm.com> (raw)
In-Reply-To: <20261002161828.365ff859.michal.pecio@gmail.com>
> Sure, but what does it mean exactly?
> Not even showing up in lspci output?
When executing "kexec -e", saw the error:
xhci_hcd 0005:01:00.0: Host halt failed. -110
USB device is still showed up in lspci but lsusb didn't show any
USB devices.
#lspci|grep USB
0005:01:00.0 USB controller: Texas Instruments TUSB73x0 SuperSpeed USB
3.0 xHCI Host Controller (rev 02)
[root@localhost ~]# lsusb
looks we saw a frozen USB subsystem during suspend/shutdown.
> Is this our problem and not PCI subsystem's?
> Are we sure it's not a bug elsewhere?
>
> (Last time somebody reported issues with kexec,
> it turned out to be an obscure Intel IOMMU bug).
next prev parent reply other threads:[~2026-10-05 13:02 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
2026-10-02 14:05 ` Wen Xiong
2026-10-02 14:18 ` Michal Pecio
2026-10-05 13:01 ` Wen Xiong [this message]
2026-10-06 10:55 ` Michal Pecio
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