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From: Luo Jiaxing <luojiaxing@huawei.com>
To: <maz@kernel.org>
Cc: <linux-kernel@vger.kernel.org>, <linux-pci@vger.kernel.org>,
	<linuxarm@openeuler.org>
Subject: [PATCH v1 0/2] irqchip/gic-v3-its: don't set bitmap for LPI which user didn't allocate
Date: Mon, 8 Feb 2021 18:58:44 +0800	[thread overview]
Message-ID: <1612781926-56206-1-git-send-email-luojiaxing@huawei.com> (raw)

When the number of online CPUs is less than 16, we found that it will fail
to allocate 32 MSI interrupts (including 16 affinity interrupts) after the
hisi_sas module is unloaded and then reloaded.

After analysis, it is found that a bug exists when the ITS releases
interrupt resources, and this patch set contains a bugfix patch and a patch
for appending debugging information.

Luo Jiaxing (2):
  irqchip/gic-v3-its: don't set bitmap for LPI which user didn't
    allocate
  genirq/msi: add an error print when __irq_domain_alloc_irqs() failed

 drivers/irqchip/irq-gic-v3-its.c | 4 ++++
 kernel/irq/msi.c                 | 1 +
 2 files changed, 5 insertions(+)

-- 
2.7.4


             reply	other threads:[~2021-02-08 11:07 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-02-08 10:58 Luo Jiaxing [this message]
2021-02-08 10:58 ` [PATCH v1 1/2] irqchip/gic-v3-its: don't set bitmap for LPI which user didn't allocate Luo Jiaxing
2021-02-08 11:59   ` Marc Zyngier
2021-02-09  7:25     ` luojiaxing
2021-02-08 10:58 ` [PATCH v1 2/2] genirq/msi: add an error print when __irq_domain_alloc_irqs() failed Luo Jiaxing
2021-02-08 11:14 ` [Linuxarm] [PATCH v1 0/2] irqchip/gic-v3-its: don't set bitmap for LPI which user didn't allocate John Garry

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