Bug 202927
| Summary: | Regression causes a hang on boot with a Comtrol PCI card | ||
|---|---|---|---|
| Product: | Drivers | Reporter: | Jesse Hathaway (jesse) |
| Component: | PCI | Assignee: | drivers_pci (drivers_pci) |
| Status: | NEW --- | ||
| Severity: | normal | CC: | ssgelm |
| Priority: | P1 | ||
| Hardware: | Intel | ||
| OS: | Linux | ||
| Kernel Version: | 5.0.1 | Subsystem: | |
| Regression: | No | Bisected commit-id: | |
| Attachments: |
lspci -vvxxx
lspci -vvxxxx dmesg output for v5.0.1 vanilla, hangs dmesg output for v5.0.1 with revert of 1302fcf0d03e & 1c3c5eab1715, works v5.0.3 initcall_debug v5.0 initcall_debug with printks pci-quirks.c |
||
Created attachment 281833 [details]
lspci -vvxxxx
Created attachment 281835 [details]
dmesg output for v5.0.1 vanilla, hangs
Created attachment 281837 [details]
dmesg output for v5.0.1 with revert of 1302fcf0d03e & 1c3c5eab1715, works
Created attachment 281965 [details]
v5.0.3 initcall_debug
Created attachment 282125 [details]
v5.0 initcall_debug with printks
Created attachment 282127 [details]
pci-quirks.c
|
Created attachment 281831 [details] lspci -vvxxx Two regressions cause Linux to hang on boot when a Comtrol PCI card is present. If I revert the following two commits, I can boot again and the card operates without issue: 1302fcf0d03e (refs/bisect/bad) PCI: Configure *all* devices, not just hot-added ones 1c3c5eab1715 sched/core: Enable might_sleep() and smp_processor_id() checks early - [x] v3.18 vanilla, 1302fcf0d03e committed, hangs - [x] v3.18 with revert of 1302fcf0d03e, works . . . - [x] v4.12 vanilla, hangs - [x] v4.12 with revert of 1302fcf0d03e, works - [x] v4.13 vanilla, 1c3c5eab1715 committed, hangs - [x] v4.13 with revert of 1302fcf0d03e, hangs - [x] v4.13 with revert of 1c3c5eab1715, hangs - [x] v4.13 with revert of 1302fcf0d03e & 1c3c5eab1715, works - [x] v5.0 vanilla, hangs - [x] v5.0 with revert of 1302fcf0d03e & 1c3c5eab1715, works