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[83.28.83.227]) by smtp.gmail.com with ESMTPSA id ffacd0b85a97d-45055e2d3d0sm13464048f8f.34.2026.05.06.10.30.40 (version=TLS1_2 cipher=AES128-SHA bits=128/128); Wed, 06 May 2026 10:30:41 -0700 (PDT) Date: Wed, 6 May 2026 19:30:37 +0200 From: Michal Pecio To: Paul Menzel Cc: Mathias Nyman , Greg Kroah-Hartman , linux-usb@vger.kernel.org, LKML Subject: Re: IBM Power S822LC: pci 0021:0d:00.0: xHCI HW did not halt within 32000 usec status = 0x0 Message-ID: <20260506193037.6de9e355.michal.pecio@gmail.com> In-Reply-To: References: Precedence: bulk X-Mailing-List: linux-usb@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable On Wed, 6 May 2026 18:06:20 +0200, Paul Menzel wrote: > Dear Linux folks, >=20 >=20 > On the IBM Power S822LC (8335-GCA POWER8), rebooting into Linux 7.1-rc2+= =20 > with kexec results in the warning below: >=20 > [ 0.000000] Linux version 7.1.0-rc2+ (x@b) (gcc (Ubuntu=20 > 11.2.0-7ubuntu2) 11.2.0, GNU ld (GNU Binutils for Ubuntu) 2.37) #3 SMP=20 > PREEMPT Wed May 6 08:50:5 > [=E2=80=A6] > [ 0.000000] Hardware name: 8335-GCA POWER8 (raw) 0x4d0200=20 > opal:skiboot-5.4.8-5787ad3 PowerNV > [=E2=80=A6] > [ 1.593760] NET: Registered PF_UNIX/PF_LOCAL protocol family > [ 1.593859] pci 0021:0d:00.0: enabling device (0140 -> 0142) > [ 1.627080] pci 0021:0d:00.0: xHCI HW did not halt within 32000=20 > usec status =3D 0x0 > [ 1.627094] pci 0021:0d:00.0: quirk_usb_early_handoff+0x0/0x300=20 > took 32465 usecs > [ 1.627123] PCI: CLS 0 bytes, default 128 Hi, Does it work any better if kexecing other kernel versions? What if you increase XHCI_MAX_HALT_USEC by 10* or 100* ? Does the controller work normally after this warning? Regards, Michal