| Message ID | 1612781926-56206-1-git-send-email-luojiaxing@huawei.com (mailing list archive) |
|---|---|
| Headers | show |
| Series | irqchip/gic-v3-its: don't set bitmap for LPI which user didn't allocate | expand |
On 08/02/2021 10:58, Luo Jiaxing wrote: > 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. Please note that this issue has already been reported: https://lore.kernel.org/lkml/fd88ce05-8aee-5b1f-5ab6-be88fa53d3aa@huawei.com/ > > 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(+) >
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(+)