On Wed, Sep 08, 2021 at 03:51:39AM +0200, wim wrote:
On Mon, Sep 06, 2021 at 12:52:20PM +0200, Greg KH wrote:
from kernel-4.9.270 up until now (4.9.282) I experience kernel crashes upon loading a GPU module. ...
Do you have any kernel log messages when these crashes happen?
... Aug 1 20:51:24 djo kernel: [<f8bc4ef7>] ? 0xf8bc4ef7
<snip>
These aren't going to help us much, can you turn on debugging symbols for these crashes for us to see the symbol names?
ERROR: not enough memory to load nouveau.ko
That's the only error? Maybe you don't have enough memory?
i915.ko is smaller and my laptop is bigger. Identical crash, no symbols.
Odd.
Can you use 'git bisect' to track down the offending commit?
If I would know how to do that
'man git bisect' should provide a tutorial on how to do this.
No, it does not. It would have taken an enormous amount of time and GBs less if I'd found earlier the only pointer on internet that stated:
cd linux git remote add stable git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable.git and that brought me reasonably fast to this:
3bd3a8ca5a7b1530f463b6e1cc811c085e6ffa01 is the first bad commit commit 3bd3a8ca5a7b1530f463b6e1cc811c085e6ffa01 Author: Maciej W. Rozycki macro@orcam.me.uk Date: Thu May 13 11:51:50 2021 +0200 ...
That is a vt change that handles an issue with a console driver, so this feels like a false failure.
If you revert this change on a newer kernel release, does it work?
And what about showing us the symbols of that traceback?
thanks,
greg k-h