Greetings, I've been getting hot-add errors for a device on suspend/resume cycles and the closest I've found to a resolution was a patch submitted to this list: - http://thread.gmane.org/gmane.linux.kernel/1834517 There's a kernel bug here where I've been trying to make headway but thought I'd ping this list as it seemed relevant: - https://bugzilla.kernel.org/show_bug.cgi?id=74471 The closest other reports I can find are here: - https://bugs.archlinux.org/task/38486 - https://bbs.archlinux.org/viewtopic.php?pid=1314282#p1314282 This is on Arch linux. $ uname -a Linux 4.5.0-1-ARCH #1 SMP PREEMPT Tue Mar 15 09:41:03 CET 2016 x86_64 GNU/Linux Example dmesg output: $ dmesg |grep hot-add [ 43.105083] pciehp 0000:3d:03.0:pcie24: Device 0000:60:00.0 already exists at 0000:60:00, cannot hot-add [ 43.208376] pciehp 0000:3d:03.0:pcie24: Device 0000:60:00.0 already exists at 0000:60:00, cannot hot-add [ 2223.875613] pciehp 0000:3d:03.0:pcie24: Device 0000:60:00.0 already exists at 0000:60:00, cannot hot-add [ 2223.982274] pciehp 0000:3d:03.0:pcie24: Device 0000:60:00.0 already exists at 0000:60:00, cannot hot-add Device info (let me know if -vv or -vvv is preferred) $ sudo lspci -v 60:00.0 Unassigned class [ff00]: Realtek Semiconductor Co., Ltd. RTS5249 PCI Express Card Reader (rev 01) Subsystem: Hewlett-Packard Company Device 2253 Physical Slot: 0-2 Flags: bus master, fast devsel, latency 0, IRQ 10 Memory at cc000000 (32-bit, non-prefetchable) [size=4K] Capabilities: [40] Power Management version 3 Capabilities: [50] MSI: Enable- Count=1/1 Maskable- 64bit+ Capabilities: [70] Express Endpoint, MSI 00 Capabilities: [100] Advanced Error Reporting Capabilities: [148] Device Serial Number 00-00-00-01-00-4c-e0-00 Capabilities: [158] Latency Tolerance Reporting Capabilities: [160] L1 PM Substates Kernel modules: rtsx_pci I noticed that on Arch the patch referenced above isn't applied, so I'm not sure if it was ever integrated or not. I made the changes contained in v2 manually, and am still experiencing the errors. That said, they don't seem to affect anything noticeable other than showing up when I move the mouse to disable xscreensaver (though that's gone away recently). If it's nothing to be concerned with, at the least I can add a comment to kernel bug so that others who find it won't be worried. It'd be nice to have an official resolution somewhere on the internet. Thanks fo for taking a look, John -- To unsubscribe from this list: send the line "unsubscribe linux-pci" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
