Re: 2.6 must-fix list, v2

Andi Kleen
2003-05-13T05:47:48Z

Andrew Morton <akpm@digeo.com> writes:

I fixed a lot of bugs since then. It's not all merged yet and I introduced
a few new ones in the process but:

>
> arch/x86_64/
> ------------
>
> (Andi)
>
> - memory corruption with IOMMU pci_free_consistent - often causes crashes
> at shutdown. This is rather mysterious, the code is basically identical to
> 2.4 which works fine. Can only be seen on systems with >4GB of memory or
> with iommu=force

This is fixed.

> - change_page_attr corrupts memory/crashes. Breaks some AGP users.

This is also fixed.

> - some fixes from 2.4 still need to be merged

This is basically done, except the timing code.

Current new bug list:

- 32bit vsyscalls seem to be broken
- 32bit elf coredumps are broken

Required/Wanted features:

- need to coredump 64bit vsyscall code with dwarf2
- move 64bit signal trampolines into vsyscall code and add dwarf2 for it.
- describe kernel assembly with dwarf2 annotations for kgdb (currently waiting
on some binutils changes for this)

-Andi