Hi Russell, As it happens, I just finished bisecting the stable tree yesterday. The offending patch (459e3a21535ae3c7a9a123650e54f5c882b8fcbf) addresses some gcc-9 warnings. Reverting that patch fixes everything. I submitted bug 203935 to bugzilla.kernel.org today. More observations below, Cheers ... Duncan. On Wed, Jun 19, 2019 at 11:16:41PM +1000, luv-main wrote:
On Tuesday, 28 May 2019 4:27:53 PM AEST Duncan Roe via luv-main wrote:
Following Andrew's exhortations at the last main meeting, I built 5.1 and installed it on my laptop.
I usually try to avoid building kernels, compiling a kernel with the same settings as Debian uses takes too long and changing the settings to a minimal set that matches what I want to do is more effort than I want. Currently Debian/Experimental only has 5.0.
I have a customised version of the standard Slackware .config. Running *make xconfig* on successive kernel revisions keeps it updated. I do keep it under tight revision control, keeping automatic updates separate from any I do.
I went back to 5.0 and checked what was in debug.log (which logs everything). And there was nothing at all! No hint that 5.1 had ever started - just a 7 minute gap between the last 5.0 shutdown and 5.0 starting.
Did any other log file have anything in that time period?
No
Was networking operational, could you ping it? If so network logging might work.
Didn't try a ping from another system, that would have been a nice idea.
Did you try configuring your system to disable video mode changes?
No
Serial console might be an option, but not many systems have proper serial ports nowadays.
I had a console all right. But I couldn't log in.
Have you seen this email before? Please mail me off-list if so.
I originally sent this on 13th May but didn't see it come back.
It got delivered to me then and was in my lists folder with lots of other unread mail from months ago. Maybe people just couldn't think of good suggestions to offer you.
Maybe so. Bit *I* didn't see my own email even though I configured to see it. Mail to the list owner about that has gone unanswered. It took me weeks to think of trying a bisect. That required acceptance that the problem was with the kernel.