Hi Matt, On 31/03/17 12:05, Matt Redfearn wrote: > > Since v4.11-rc1, 3 regressions have been observed on the Malta platform, > using malta_defconfig. which prevent it booting. These patches fix 2 of > them. The third one is that malta_defconfig, which uses SMP-MT, no > longer sets up its IPIs correctly resulting is a string of messages > like: > > irq 23: nobody cared (try booting with the "irqpoll" option) > CPU: 1 PID: 0 Comm: swapper/1 Tainted: G W 4.11.0-rc4 #421 > Stack : 00000000 00000000 00000000 00000000 807cdff2 00000047 00000000 0000003d > 80741327 8f093194 806c191c 00000000 00000001 807c9acc 80756078 807d0000 > 807cdbe4 80177c78 00000003 0000003c 00000006 80177a04 806c70a8 8f02be8c > 00000006 801b4c8c 00000000 00000000 ffffffff 00000000 8f02be8c 80740000 > 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 > ... > Call Trace: > [<8010c6c0>] show_stack+0x88/0xa4 > [<80380fb8>] dump_stack+0x88/0xd0 > [<8017cf64>] __report_bad_irq+0x48/0x108 > [<8017d2d4>] note_interrupt+0x1c0/0x2fc > [<80179ed4>] handle_irq_event_percpu+0x4c/0x64 > [<8017eafc>] handle_percpu_irq+0x88/0xb8 > [<801791c0>] generic_handle_irq+0x40/0x58 > [<80108664>] do_IRQ+0x18/0x24 > [<803b83fc>] plat_irq_dispatch+0x54/0xa8 > handlers: > Disabling IRQ #23 > > This regression is fixed by Paul Burtons series "MIPS/irqchip: Use IPI > IRQ domains for CPU interrupt controller IPIs", but it is a large change > for this stage in the cycle so I don't know how best to proceed with > that one. > > > > Matt Redfearn (2): > MIPS: Malta: Fix i8259 irqchip setup > irqchip/mips-gic: Fix Local compare interrupt > > arch/mips/mti-malta/malta-int.c | 13 +++++++++++++ > drivers/irqchip/irq-mips-gic.c | 4 ++++ > 2 files changed, 17 insertions(+) > I can take the GIC patch through the irq tree if that's convenient (I was about to send a PR anyway). Just let me know. Thanks, M. -- Jazz is not dead. It just smells funny...
