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@xxxxxxxxxx/
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(+)
