0017178: Problems binding to uio_pci_generic in 4.18

ID	Project	Category	View Status	Date Submitted	Last Update

0017178	CentOS-8	kernel	public	2020-03-23 11:57	2020-03-23 11:57

Reporter	tomasz.zawadzki
Priority	normal	Severity	minor	Reproducibility	always
Status	new	Resolution	open
Product Version	8.1.1911
Target Version		Fixed in Version

Summary	0017178: Problems binding to uio_pci_generic in 4.18
Description	Using CentOS 8.1, I am unable to bind a PCI device to uio_pci_generic. Dmesg shows: [ 2422.671851] genirq: Threaded irq requested with handler=NULL and !ONESHOT for irq 11 [ 2422.691238] uio_pci_generic: probe of 0000:00:06.0 failed with error -22 This problem has been reproduced on multiple systems. System: [vagrant@centos8 spdk]$ cat /etc/redhat-release CentOS Linux release 8.1.1911 (Core) [vagrant@centos8 spdk]$ uname -a Linux centos8.localdomain 4.18.0-147.5.1.el8_1.x86_64 #1 SMP Wed Feb 5 02:00:39 UTC 2020 x86_64 x86_64 x86_64 GNU/Linux Original report to LKML: https://lkml.org/lkml/2018/8/10/624 Following patch merged to 4.18 stable resolves this issue: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?h=linux-4.18.y&id=a34e4f42055a7fe8e804fc9e71dfc1e324c657f1 Having the above revert included in future version of CentOS would be helpful for any uio_pci_generic users.
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