PROBLEM: random crashes while loading modules into 2.6.36-rc8

PROBLEM: random crashes while loading modules into 2.6.36-rc8

[Helmut Grohne]

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I tried to use vanilla 2.6.36-rc8 and failed. While trying track down
the random oopses, bugs and lockups the problem appeared to get broader
and broader. In fact the best description I can come up with is loading
a module with at least one dependency.

Steps to reproduce:
1) Get 2.6.36-rc8.
2) Use my config (attached).
3) Compile it on amd64. (I used gcc 4:4.4.5-1 from Debian Sid.)
4) Get qemu. (I used 0.12.5+dfsg-2 from Debian Sid.)
5) Create an initramfs that contains the modules and some shell.
6) qemu-system-x86_64 -m 256 -kernel vmlinuz-2.6.36-rc8 -initrd foo.cpio.gz
7) load a module. If it does not crash, try more.

This is also reproducible without qemu for me. The most reliable module
was sky2 (both inside and outside qemu). Also loading ohci_hcd caused a
variety of oopses and bugs on my system. Note that not all modules
caused problems. For instance the dependencies for sky2 (bitrev and
crc32) could be loaded just fine.

Helmut

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Re: "solved" PROBLEM: random crashes while loading modules into 2.6.36-rc8

[Helmut Grohne]

On Sun, Oct 17, 2010 at 09:52:06PM +0200, Helmut Grohne wrote:
> I tried to use vanilla 2.6.36-rc8 and failed. While trying track down
> the random oopses, bugs and lockups the problem appeared to get broader
> and broader. In fact the best description I can come up with is loading
> a module with at least one dependency.

This was caused by using binutils-gold. I have no problems with standard
binutils.

Helmut