Bug 215690

Summary:	SB600 USB not working with MSI
Product:	Drivers	Reporter:	Bjorn Helgaas (bjorn)
Component:	PCI	Assignee:	drivers_pci (drivers_pci)
Status:	NEW ---
Severity:	normal
Priority:	P1
Hardware:	All
OS:	Linux
Kernel Version:	5.10	Subsystem:
Regression:	No	Bisected commit-id:
Attachments:	5.10 dmesg (broken) 5.10 lspci (broken) 5.10 /proc/interrupts (broken) 4.19 lspci (working) 4.19 /proc/interrupts (working)

Description Bjorn Helgaas 2022-03-15 17:41:08 UTC

Mick Lorain <micklorain@protonmail.com> reported that SB600 USB devices broke when upgrading from debian's 4.19.0-18 (working) to 5.10.0-10 (broken).  He bisected and found that 306c54d0edb6 ("usb: hcd: Try MSI interrupts on PCI devices") was the cause.  See:

https://lore.kernel.org/all/PxIByDyBRcsbpcmVhGSNDFAoUcMmb78ctXCkw6fbpx25TGlCHvA6SJjjFkNr1FfQZMntYPTNyvEnblxzAZ8a6jP9ddLpKeCN6Chi_2FuexU=@protonmail.com/

This bugzilla is to archive the dmesg, lspci, and other information Mick collected.  They were posted in https://paste.debian.net, where they will expire soon.

Comment 1 Bjorn Helgaas 2022-03-15 17:42:13 UTC

Created attachment 300571 [details]
5.10 dmesg (broken)

Comment 2 Bjorn Helgaas 2022-03-15 17:42:47 UTC

Created attachment 300572 [details]
5.10 lspci (broken)

Comment 3 Bjorn Helgaas 2022-03-15 17:43:21 UTC

Created attachment 300573 [details]
5.10 /proc/interrupts (broken)

Comment 4 Bjorn Helgaas 2022-03-15 17:44:35 UTC

Created attachment 300575 [details]
4.19 lspci (working)

Comment 5 Bjorn Helgaas 2022-03-15 17:45:08 UTC

Created attachment 300576 [details]
4.19 /proc/interrupts (working)