Bug 215690 - SB600 USB not working with MSI
Summary: SB600 USB not working with MSI
Status: NEW
Alias: None
Product: Drivers
Classification: Unclassified
Component: PCI (show other bugs)
Hardware: All Linux
: P1 normal
Assignee: drivers_pci@kernel-bugs.osdl.org
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2022-03-15 17:41 UTC by Bjorn Helgaas
Modified: 2022-03-15 17:45 UTC (History)
0 users

See Also:
Kernel Version: 5.10
Subsystem:
Regression: No
Bisected commit-id:

Attachments
5.10 dmesg (broken) (60.99 KB, text/plain)
2022-03-15 17:42 UTC, Bjorn Helgaas 		Details
5.10 lspci (broken) (22.41 KB, text/plain)
2022-03-15 17:42 UTC, Bjorn Helgaas 		Details
5.10 /proc/interrupts (broken) (2.22 KB, text/plain)
2022-03-15 17:43 UTC, Bjorn Helgaas 		Details
4.19 lspci (working) (22.41 KB, text/plain)
2022-03-15 17:44 UTC, Bjorn Helgaas 		Details
4.19 /proc/interrupts (working) (2.06 KB, text/plain)
2022-03-15 17:45 UTC, Bjorn Helgaas 		Details
Add an attachment (proposed patch, testcase, etc.)

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)
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