From: "Tian, Kevin" <kevin.tian@intel.com>
To: Andrew Cooper <andrew.cooper3@citrix.com>,
Xen-devel <xen-devel@lists.xenproject.org>
Cc: "Nakajima, Jun" <jun.nakajima@intel.com>, "Wei Liu" <wl@xen.org>,
"Jan Beulich" <JBeulich@suse.com>,
"Roger Pau Monné" <roger.pau@citrix.com>
Subject: Re: [Xen-devel] [PATCH] x86/vtd: Fix S3 resume following c/s 650c31d3af
Date: Fri, 23 Aug 2019 02:54:14 +0000 [thread overview]
Message-ID: <AADFC41AFE54684AB9EE6CBC0274A5D19D5459C2@SHSMSX104.ccr.corp.intel.com> (raw)
In-Reply-To: <20190812171729.4984-1-andrew.cooper3@citrix.com>
> From: Andrew Cooper [mailto:andrew.cooper3@citrix.com]
> Sent: Tuesday, August 13, 2019 1:17 AM
>
> c/s 650c31d3af "x86/IRQ: fix locking around vector management" adjusted
> the
> locking in adjust_irq_affinity().
>
> The S3 path ends up here via iommu_resume() before interrupts are enabled,
> at
> which point spin_lock_irq() which fail ASSERT(local_irq_is_enabled()); but
> with no working console.
>
> Use spin_lock_irqsave() instead to cope with interrupts already being
> disabled.
>
> Signed-off-by: Andrew Cooper <andrew.cooper3@citrix.com>
Reviewed-by: Kevin Tian <kevin.tian@intel.com>
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prev parent reply other threads:[~2019-08-23 2:55 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-08-12 17:17 [Xen-devel] [PATCH] x86/vtd: Fix S3 resume following c/s 650c31d3af Andrew Cooper
2019-08-23 2:54 ` Tian, Kevin [this message]
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