With the Broadcom BCM57765 card reader [1] in my Macbook Pro 10,1 (Mid 2012), we see the sdhci-pci interrupt handler not claim the interrupt generated when the module initialises [2]. Beyond the MMC subsystem output, what other data may be useful in diagnosing this? Many thanks, Daniel --- [1] $ sudo lspci -s 03:00.1 -v 03:00.1 SD Host controller: Broadcom Corporation NetXtreme BCM57765 Memory Card Reader (rev 10) (prog-if 01) Subsystem: Broadcom Corporation Device 96bc Flags: bus master, fast devsel, latency 0, IRQ 17 Memory at c1820000 (64-bit, prefetchable) [size=64K] Capabilities: [48] Power Management version 3 Capabilities: [58] MSI: Enable- Count=1/1 Maskable- 64bit+ Capabilities: [ac] Express Endpoint, MSI 00 Capabilities: [100] Advanced Error Reporting Capabilities: [150] Power Budgeting <?> Capabilities: [160] Virtual Channel Kernel driver in use: sdhci-pci --- [2] sdhci: Secure Digital Host Controller Interface driver sdhci: Copyright(c) Pierre Ossman sdhci-pci 0000:03:00.1: SDHCI controller found [14e4:16bc] (rev 10) mmc0: no vqmmc regulator found mmc0: no vmmc regulator found mmc0: SDHCI controller on PCI [0000:03:00.1] using ADMA [...] irq 17: nobody cared (try booting with the "irqpoll" option) CPU: 0 PID: 0 Comm: swapper/0 Tainted: G W 3.10.0-031000-generic #201306301935 Hardware name: Apple Inc. MacBookPro10,1/Mac-C3EC7CD22292981F, BIOS MBP101.88Z.00EE.B02.1208081132 08/08/2012 ffff8802635cd89c ffff88026f203e48 ffffffff81703460 ffff88026f203e78 ffffffff810f0d6d 000000029d3daf00 ffff8802635cd800 0000000000000011 0000000000000000 ffff88026f203ea8 ffffffff810f1195 0000000000000011 Call Trace: <IRQ> [<ffffffff81703460>] dump_stack+0x19/0x1b [<ffffffff810f0d6d>] __report_bad_irq+0x3d/0xe0 [<ffffffff810f1195>] note_interrupt+0x135/0x190 [<ffffffff810ee9d9>] handle_irq_event_percpu+0xa9/0x210 [<ffffffff8101b459>] ? sched_clock+0x9/0x10 [<ffffffff810eeb8e>] handle_irq_event+0x4e/0x80 [<ffffffff810f1db4>] handle_fasteoi_irq+0x64/0x120 [<ffffffff81015a02>] handle_irq+0x22/0x40 [<ffffffff817199da>] do_IRQ+0x5a/0xe0 [<ffffffff8170ef6d>] common_interrupt+0x6d/0x6d <EOI> [<ffffffff810f6f03>] ? rcu_eqs_enter_common.isra.48+0x43/0x100 [<ffffffff81598b01>] ? cpuidle_enter_state+0x61/0xe0 [<ffffffff81598af7>] ? cpuidle_enter_state+0x57/0xe0 [<ffffffff81598c40>] cpuidle_idle_call+0xc0/0x220 [<ffffffff8101c77e>] arch_cpu_idle+0xe/0x30 [<ffffffff810acd0e>] cpu_idle_loop+0x7e/0x250 [<ffffffff810acf4b>] cpu_startup_entry+0x6b/0x70 [<ffffffff816df8c7>] rest_init+0x77/0x80 [<ffffffff81d13f11>] start_kernel+0x40c/0x419 [<ffffffff81d13997>] ? do_early_param+0x87/0x87 [<ffffffff81d13120>] ? early_idt_handlers+0x120/0x120 [<ffffffff81d135e6>] x86_64_start_reservations+0x2a/0x2c [<ffffffff81d136db>] x86_64_start_kernel+0xf3/0x102 handlers: [<ffffffffa000fb40>] sdhci_irq [sdhci] Disabling IRQ #17 -- Daniel J Blueman -- To unsubscribe from this list: send the line "unsubscribe linux-mmc" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html