On Fri, 19 May 2017 07:42:23 +0200 Greg Kroah-Hartman <gre...@linuxfoundation.org> wrote:
> On Thu, May 18, 2017 at 11:42:34PM -0400, Steven Rostedt wrote: > > > > One of my the configs I use to test ftrace with (configs that have > > caused failures in the past), has lots of irq issues and fails to > > initialize the network of my box. I bisected the problem down to a > > single commit, and when I revert that commit, my box boots without any > > network or irq issues. > > > > Note, my other configs work fine on this box. I haven't investigated > > which config is also the culprit. But since it use to work with this > > config, I want to report it. > > So what commit is causing the problem? Ug, I forgot to cut and paste the sha1. I thought I did, but I only cut and pasted the subject into the subject of this email. commit 77d45b4500967de674b8f75a9a91f58d57d5704d > > It looks like the ehci driver is having problems, but first, your > interrupts are whack: Could be. It's an old board. > > > irq 16: nobody cared (try booting with the "irqpoll" option) > > CPU: 2 PID: 0 Comm: swapper/2 Not tainted 4.12.0-rc1-test-dirty #24 > > Hardware name: MSI MS-7823/CSM-H87M-G43 (MS-7823), BIOS V1.6 02/22/2014 > > Call Trace: > > <IRQ> > > devtmpfs: mounted > > dump_stack+0x9a/0xd6 > > __report_bad_irq+0x35/0xc0 > > note_interrupt+0x234/0x270 > > handle_irq_event_percpu+0x45/0x60 > > handle_irq_event+0x39/0x60 > > handle_fasteoi_irq+0x8f/0x160 > > handle_irq+0x6f/0x110 > > do_IRQ+0x46/0xd0 > > common_interrupt+0x93/0x93 > > RIP: 0010:native_safe_halt+0x6/0x10 > > RSP: 0000:ffffb54240cd7e90 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff7e > > RAX: 0000000000000000 RBX: ffff8ea214498040 RCX: 0000000000000000 > > RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 > > RBP: ffffb54240cd7e90 R08: 0000000000000001 R09: 0000000041129b0c > > R10: ffffb54240cd7d68 R11: 0000000000000001 R12: 0000000000000002 > > R13: ffff8ea214498040 R14: 0000000000000000 R15: ffff8ea214498040 > > </IRQ> > > default_idle+0x38/0x160 > > arch_cpu_idle+0xf/0x20 > > default_idle_call+0x28/0x50 > > do_idle+0x182/0x220 > > cpu_startup_entry+0x1d/0x20 > > start_secondary+0x132/0x160 > > secondary_startup_64+0x9f/0x9f > > handlers: > > [<ffffffff9a6421a0>] xhci_msi_irq > > Disabling IRQ #16 > > Have you tried taking the kernel's advice? :) You mean the "irqpoll"? No. This works fine without that commit. Why should I have to change? > > > ehci-pci 0000:00:1a.0: new USB bus registered, assigned bus number 3 > > ehci-pci 0000:00:1a.0: debug port 2 > > ehci-pci 0000:00:1a.0: cache line size of 64 is not supported > > genirq: Flags mismatch irq 16. 00000080 (ehci_hcd:usb3) vs. 00000000 > > (xhci_hcd) > > What does that mean? No idea ;-) > > > CPU: 0 PID: 307 Comm: modprobe Tainted: G E > > 4.12.0-rc1-test-dirty #24 > > Hardware name: MSI MS-7823/CSM-H87M-G43 (MS-7823), BIOS V1.6 02/22/2014 > > Call Trace: > > dump_stack+0x9a/0xd6 > > __setup_irq+0x5d4/0x630 > > request_threaded_irq+0x10d/0x190 > > usb_add_hcd+0x658/0x970 > > ? for_each_companion+0x3e/0xb0 > > usb_hcd_pci_probe+0x3e4/0x490 > > ehci_pci_probe+0x36/0x40 [ehci_pci] > > local_pci_probe+0x45/0xa0 > > ? pci_match_device+0xca/0x110 > > pci_device_probe+0xdb/0x130 > > driver_probe_device+0x2ed/0x480 > > __driver_attach+0xd5/0x100 > > ? driver_probe_device+0x480/0x480 > > bus_for_each_dev+0x62/0xa0 > > driver_attach+0x1e/0x20 > > bus_add_driver+0x1c6/0x290 > > driver_register+0x60/0xe0 > > __pci_register_driver+0x60/0x70 > > ? 0xffffffffc0346000 > > ehci_pci_init+0x6a/0x1000 [ehci_pci] > > do_one_initcall+0x43/0x190 > > ? kmem_cache_alloc_trace+0x1be/0x200 > > do_init_module+0x7d/0x210 > > load_module+0x1891/0x1eb0 > > ? vmap_page_range_noflush+0x29b/0x370 > > ? show_coresize+0x30/0x30 > > SYSC_init_module+0x143/0x180 > > ? load_module+0x5/0x1eb0 > > ? SYSC_init_module+0x143/0x180 > > SyS_init_module+0xe/0x10 > > entry_SYSCALL_64_fastpath+0x23/0xc2 > > RIP: 0033:0x3b918e0ffa > > RSP: 002b:00007ffd11d575c8 EFLAGS: 00000246 ORIG_RAX: 00000000000000af > > RAX: ffffffffffffffda RBX: 000000000061f950 RCX: 0000003b918e0ffa > > RDX: 000000000061f7d0 RSI: 00000000000036b0 RDI: 000000000062c9e0 > > RBP: 0000000000000000 R08: 0000000000630090 R09: 00007f019c07c700 > > R10: 00007ffd11d574f0 R11: 0000000000000246 R12: 0000000000626200 > > R13: 000000000061f930 R14: 0000000000000000 R15: 000000000061f420 > > ehci-pci 0000:00:1a.0: request interrupt 16 failed > > So ehci can't use the same irq line as xhci? No sharing allowed? > > But other configs on this same hardware work, can you do a diff of a > working vs. not working? I could probably run my config-bisect and see what it comes up with. -- Steve
