Bug 216242
| Summary: | MSI is enabled after system resume despite MSI-X is already enabled. | ||
|---|---|---|---|
| Product: | Drivers | Reporter: | Kai-Heng Feng (kai.heng.feng) |
| Component: | PCI | Assignee: | drivers_pci (drivers_pci) |
| Status: | NEW --- | ||
| Severity: | normal | ||
| Priority: | P1 | ||
| Hardware: | All | ||
| OS: | Linux | ||
| Kernel Version: | mainline, linux-next | Subsystem: | |
| Regression: | No | Bisected commit-id: | |
| Attachments: |
dmesg
lspci before suspend lspci after resume |
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Created attachment 301398 [details]
dmesg
Created attachment 301399 [details]
lspci before suspend
Created attachment 301400 [details]
lspci after resume
|
MSI/MSI-X can have garbage data after system resume. Before suspend: Capabilities: [a0] MSI: Enable- Count=1/4 Maskable- 64bit+ Address: 0000000000000000 Data: 0000 Capabilities: [c0] MSI-X: Enable+ Count=4 Masked- Vector table: BAR=5 offset=00042000 PBA: BAR=5 offset=00043000 After resume: Capabilities: [a0] MSI: Enable+ Count=128/4 Maskable- 64bit+ Address: fffffffffffffffc Data: ffff Capabilities: [c0] MSI-X: Enable+ Count=4 Masked- Vector table: BAR=5 offset=00042000 PBA: BAR=5 offset=00043000 It's PCI device 64:00.0.