[Bug 1509751] Re: Kernel disabling serial port ttyS0 again

** Tags removed: kernel-bug-exists-upstream ** Tags added: cherry-pick kernel-fixed-upstream reverse-bisect-done -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1509751 Title: Kernel disabling serial

[Bug 1509751] Re: Kernel disabling serial port ttyS0 again

e0f03e87fc6f27a8af9896f430f2945b3b1664c0 is the first bad commit commit e0f03e87fc6f27a8af9896f430f2945b3b1664c0 Author: Heiner Kallweit Date: Wed Dec 16 07:33:22 2015 +0100 PNP: respect PNP_DRIVER_RES_DO_NOT_CHANGE when detaching I have a device (Nuvoton

[Bug 1509751] Re: Kernel disabling serial port ttyS0 again

fix after afd2ff9b7e1b367172f18ba7f693dfb62bdcb2dc -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1509751 Title: Kernel disabling serial port ttyS0 again To manage notifications about this bug go

[Bug 1509751] Re: Kernel disabling serial port ttyS0 again

A recent commit has fixed this problem upstream. I need to bisect still, just keeping some notes here. Fixed prior to commit 5807fcaa9bf7dd87241df739161c119cf78a6bc4 but after v4.4.0 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu.

[Bug 1509751] Re: Kernel disabling serial port ttyS0 again

Hans109h, the issue you are reporting is an upstream one. Could you please report this problem following the instructions verbatim at https://wiki.ubuntu.com/Bugs/Upstream/kernel to the appropriate venue (Rafael J. Wysocki, Len Brown, Thomas Gleixner, Jiang Liu, and Rafael J. Wysocki, CC

[Bug 1509751] Re: Kernel disabling serial port ttyS0 again

c420dbd13ef7f399a865498496ac9ce2755b8007 is the first bad commit commit c420dbd13ef7f399a865498496ac9ce2755b8007 Author: Thomas Gleixner Date: Mon Feb 2 10:42:48 2015 +0800 ACPI: Implement proper length checks for mem resources Check whether the resulting

[Bug 1509751] Re: Kernel disabling serial port ttyS0 again

Hans109h, any change with the latest mainline kernel (4.3-rc7)? ** Tags removed: needs-bisect ** Tags added: bisect-done ** Changed in: linux (Ubuntu) Status: Confirmed => Incomplete -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to

[Bug 1509751] Re: Kernel disabling serial port ttyS0 again

No change, v4.3-rc7 is bad. ** Changed in: linux (Ubuntu) Status: Incomplete => Confirmed -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1509751 Title: Kernel disabling serial port ttyS0

[Bug 1509751] Re: Kernel disabling serial port ttyS0 again

Hans109h, thank you for reporting this and helping make Ubuntu better. Could you please test the latest mainline kernel (4.3-rc7) and advise to the results? ** Tags added: kernel-bug-exists-upstream kernel-bug-exists- upstream-4.3-rc6 latest-bios-2104 regression-update ** Changed in: linux

[Bug 1509751] Re: Kernel disabling serial port ttyS0 again

Adjacent kernel versions: Good: 3.19.0-22.22 Bad: 4.0.0-1.1 Working on commit bisect. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1509751 Title: Kernel disabling serial port ttyS0 again To

[Bug 1509751] Re: Kernel disabling serial port ttyS0 again

Hans109h, the next step is to fully commit bisect from kernel 3.16 to 4.2 in order to identify the last good kernel commit, followed immediately by the first bad one. This will allow for a more expedited analysis of the root cause of your issue. Could you please do this following

[Bug 1509751] Re: Kernel disabling serial port ttyS0 again

I have tested the mainline kernel, v4.3-rc6-unstable and the bug is still present. ** Changed in: linux (Ubuntu) Status: Incomplete => Confirmed -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu.