Op 30-11-17 om 10:18 schreef Thomas Gleixner: > Maarten, > > On Wed, 29 Nov 2017, Maarten Lankhorst wrote: >> The changes to interrupts bring down our CI during hibernate, see: >> >> https://bugs.freedesktop.org/show_bug.cgi?id=103712 >> >> I created a bug report at https://bugzilla.kernel.org/show_bug.cgi?id=198033 >> >> Short reproducer: >> >> Create a swapfile on a snb 2600, attempt to hibernate to it with echo >> disk > /sys/power/state, this will fail in the end, but will go through >> most of the steps. >> >> After the almost complete hibernate, i915 will not receive irqs any more, >> which kills our entire integration testing. >> >> Kernel config is available at >> https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_3402/kernel.config.bz2 >> Results with pull request reverted at >> https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_7333/shards.html >> >> First bad commit: >> >> commit fdba46ffb4c203b6e6794163493fd310f98bb4be (HEAD, refs/bisect/bad) >> Author: Thomas Gleixner <tglx@xxxxxxxxxxxxx> >> Date: Wed Sep 13 23:29:27 2017 +0200 >> >> x86/apic: Get rid of multi CPU affinity >> > < SNIP > >> Could you have a look at it please? > I had a look at it. Do I need to do anything else? :) > > Seriously. Can you please do the following: > > 1) Enable CONFIG_GENERIC_IRQ_DEBUGFS > > 2) mount debugfs > > 3) Before suspend collect information from there > > cat /sys/kernel/debug/irq/domains/* > > and > > cat /sys/kernel/debug/irq/irqs/$N > > where $N is the interrupt which does not fire anymore > > 4) suspend/resume > > 5) Collect the same data as in #3 /proc/interrupts: CPU0 CPU1 CPU2 CPU3 CPU4 CPU5 CPU6 CPU7 28: 999 0 0 0 29 0 0 0 PCI-MSI 32768-edge i915 # grep . /sys/kernel/debug/irq/domains/* /sys/kernel/debug/irq/domains/default:name: VECTOR /sys/kernel/debug/irq/domains/default: size: 0 /sys/kernel/debug/irq/domains/default: mapped: 27 /sys/kernel/debug/irq/domains/default: flags: 0x00000041 /sys/kernel/debug/irq/domains/IO-APIC-0:name: IO-APIC-0 /sys/kernel/debug/irq/domains/IO-APIC-0: size: 24 /sys/kernel/debug/irq/domains/IO-APIC-0: mapped: 20 /sys/kernel/debug/irq/domains/IO-APIC-0: flags: 0x00000041 /sys/kernel/debug/irq/domains/IO-APIC-0: parent: VECTOR /sys/kernel/debug/irq/domains/IO-APIC-0: name: VECTOR /sys/kernel/debug/irq/domains/IO-APIC-0: size: 0 /sys/kernel/debug/irq/domains/IO-APIC-0: mapped: 27 /sys/kernel/debug/irq/domains/IO-APIC-0: flags: 0x00000041 /sys/kernel/debug/irq/domains/PCI-HT:name: PCI-HT /sys/kernel/debug/irq/domains/PCI-HT: size: 0 /sys/kernel/debug/irq/domains/PCI-HT: mapped: 0 /sys/kernel/debug/irq/domains/PCI-HT: flags: 0x00000041 /sys/kernel/debug/irq/domains/PCI-HT: parent: VECTOR /sys/kernel/debug/irq/domains/PCI-HT: name: VECTOR /sys/kernel/debug/irq/domains/PCI-HT: size: 0 /sys/kernel/debug/irq/domains/PCI-HT: mapped: 27 /sys/kernel/debug/irq/domains/PCI-HT: flags: 0x00000041 /sys/kernel/debug/irq/domains/PCI-MSI-2:name: PCI-MSI-2 /sys/kernel/debug/irq/domains/PCI-MSI-2: size: 0 /sys/kernel/debug/irq/domains/PCI-MSI-2: mapped: 7 /sys/kernel/debug/irq/domains/PCI-MSI-2: flags: 0x00000051 /sys/kernel/debug/irq/domains/PCI-MSI-2: parent: VECTOR /sys/kernel/debug/irq/domains/PCI-MSI-2: name: VECTOR /sys/kernel/debug/irq/domains/PCI-MSI-2: size: 0 /sys/kernel/debug/irq/domains/PCI-MSI-2: mapped: 27 /sys/kernel/debug/irq/domains/PCI-MSI-2: flags: 0x00000041 /sys/kernel/debug/irq/domains/VECTOR:name: VECTOR /sys/kernel/debug/irq/domains/VECTOR: size: 0 /sys/kernel/debug/irq/domains/VECTOR: mapped: 27 /sys/kernel/debug/irq/domains/VECTOR: flags: 0x00000041 # cat /sys/kernel/debug/irq/irqs/28 handler: handle_edge_irq device: 0000:00:02.0 status: 0x00000000 istate: 0x00000000 ddepth: 0 wdepth: 0 dstate: 0x01401200 IRQD_ACTIVATED IRQD_IRQ_STARTED IRQD_SINGLE_TARGET IRQD_AFFINITY_SET node: 0 affinity: 4 effectiv: 4 pending: domain: PCI-MSI-2 hwirq: 0x8000 chip: PCI-MSI flags: 0x10 IRQCHIP_SKIP_SET_WAKE parent: domain: VECTOR hwirq: 0x1c chip: APIC flags: 0x0 <explosion happens here> # grep . /sys/kernel/debug/irq/domains/* /sys/kernel/debug/irq/domains/default:name: VECTOR /sys/kernel/debug/irq/domains/default: size: 0 /sys/kernel/debug/irq/domains/default: mapped: 27 /sys/kernel/debug/irq/domains/default: flags: 0x00000041 /sys/kernel/debug/irq/domains/IO-APIC-0:name: IO-APIC-0 /sys/kernel/debug/irq/domains/IO-APIC-0: size: 24 /sys/kernel/debug/irq/domains/IO-APIC-0: mapped: 20 /sys/kernel/debug/irq/domains/IO-APIC-0: flags: 0x00000041 /sys/kernel/debug/irq/domains/IO-APIC-0: parent: VECTOR /sys/kernel/debug/irq/domains/IO-APIC-0: name: VECTOR /sys/kernel/debug/irq/domains/IO-APIC-0: size: 0 /sys/kernel/debug/irq/domains/IO-APIC-0: mapped: 27 /sys/kernel/debug/irq/domains/IO-APIC-0: flags: 0x00000041 /sys/kernel/debug/irq/domains/PCI-HT:name: PCI-HT /sys/kernel/debug/irq/domains/PCI-HT: size: 0 /sys/kernel/debug/irq/domains/PCI-HT: mapped: 0 /sys/kernel/debug/irq/domains/PCI-HT: flags: 0x00000041 /sys/kernel/debug/irq/domains/PCI-HT: parent: VECTOR /sys/kernel/debug/irq/domains/PCI-HT: name: VECTOR /sys/kernel/debug/irq/domains/PCI-HT: size: 0 /sys/kernel/debug/irq/domains/PCI-HT: mapped: 27 /sys/kernel/debug/irq/domains/PCI-HT: flags: 0x00000041 /sys/kernel/debug/irq/domains/PCI-MSI-2:name: PCI-MSI-2 /sys/kernel/debug/irq/domains/PCI-MSI-2: size: 0 /sys/kernel/debug/irq/domains/PCI-MSI-2: mapped: 7 /sys/kernel/debug/irq/domains/PCI-MSI-2: flags: 0x00000051 /sys/kernel/debug/irq/domains/PCI-MSI-2: parent: VECTOR /sys/kernel/debug/irq/domains/PCI-MSI-2: name: VECTOR /sys/kernel/debug/irq/domains/PCI-MSI-2: size: 0 /sys/kernel/debug/irq/domains/PCI-MSI-2: mapped: 27 /sys/kernel/debug/irq/domains/PCI-MSI-2: flags: 0x00000041 /sys/kernel/debug/irq/domains/VECTOR:name: VECTOR /sys/kernel/debug/irq/domains/VECTOR: size: 0 /sys/kernel/debug/irq/domains/VECTOR: mapped: 27 /sys/kernel/debug/irq/domains/VECTOR: flags: 0x00000041 # cat /sys/kernel/debug/irq/irqs/28 handler: handle_edge_irq device: 0000:00:02.0 status: 0x00000400 _IRQ_NOPROBE istate: 0x00000000 ddepth: 0 wdepth: 0 dstate: 0x01401300 IRQD_ACTIVATED IRQD_IRQ_STARTED IRQD_SINGLE_TARGET IRQD_AFFINITY_SET IRQD_SETAFFINITY_PENDING node: 0 affinity: 0,5-7 effectiv: 0 pending: 4 domain: PCI-MSI-2 hwirq: 0x8000 chip: PCI-MSI flags: 0x10 IRQCHIP_SKIP_SET_WAKE parent: domain: VECTOR hwirq: 0x1c chip: APIC flags: 0x0 Thanks for looking, ~Maarten _______________________________________________ Intel-gfx mailing list Intel-gfx@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/intel-gfx
