Best way to debug an invalid opcode
valdis.kletnieks at vt.edu
Thu Mar 19 05:54:37 EDT 2020
On Thu, 19 Mar 2020 10:22:25 +0100, Karaoui mohamed lamine said:
> I am currently encountering a kernel oops that indicate an "invalid opcode:
> 0000 [#1] SMP"
> I am working on this project https://github.com/GiantVM/Linux-DSM
Oh geez. Don't checkin a copy of the entire kernel. Make your project be a
branch off the kernel. Ain't nobody gonna dig through that to find what parts
of an old kernel the Linux-DSM code has messed with.
And you'll get smacked around with a large trout for starting a project 13 days
ago, and using an archaeological kernel as the base rather than 5.4 or later.
4.9 is close to 3 years ago.
[/usr/src/linux-next] git diff --shortstat v4.9..HEAD
71938 files changed, 10664587 insertions(+), 4767026 deletions(-)
So yes... something probably splattered all over part of the kernel code.
Either that, or somebody did a branch to what they thought was a function
pointer but was actually a pointer to an anthill in eastern Zimbabwe or
But nobody wants to dig through your github tree to figure out what you did....
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