https://bugzilla.kernel.org/show_bug.cgi?id=111901 URL: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1 536397 Bug ID: 111901 Summary: Pre-2008 boards may show errors in pata_amd | pata_acpi unless CRS is turned off by pci=nocrs Product: IO/Storage Version: 2.5 Kernel Version: 4.4.0 Hardware: All OS: Linux Tree: Mainline Status: NEW Severity: normal Priority: P1 Component: IDE Assignee: io_ide@xxxxxxxxxxxxxxxxxxxx Reporter: andi3@xxxxxxx Regression: Yes With a LOT of help from Oleg B. (Launchpad), it could be figured out that bug 111151 was actually a regression, but not a true bug. Let me copy the error message again from the now-closed report: pata_amd 0000:00:09.0: can't enable device: BAR 0 [io 0x01f0-0x01f7] not claimed pata_amd: probe of 0000:00:09.0 failed with error -22 Actual reason for this is CRS, which has been enabled by default since commit 3d9fecf6bfb8b12bc2f9a4c7109895a2a2bb9436 on 9 June 2015. Our old machines do not like this at all. :) The man to come to our rescue was Jiang Liu on commit 4d6b4e69a245e9df4b84dba387596086cb66887d on 14 October 2015. Of course, it WORKED now, but it still broke all the past kernels. So I'd call it a regression. Now the question is: Is this supposed to remain like this? That you guys are simply of the opinion, if you use and old machine, it's only fair you've got to work around this by pci=nocrs. Or would you decide otherwise? -- You are receiving this mail because: You are watching the assignee of the bug. -- To unsubscribe from this list: send the line "unsubscribe linux-ide" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
