Re: 2.1.99: NULL pointer dereference in tcp_v4_rehash

Steffen Zahn (zahn@berlin.snafu.de)
Sat, 2 May 1998 13:11:34 +0200


>>>>> "David" == David S Miller <davem@dm.cobaltmicro.com> writes:

David> Any chance to compile the kernel using something other than
David> egcs?

>> From looking at the assembler output your crash trace shows me,
David> I fear that egcs is generating might be incorrect code, and I'd
David> like to remove this variable from the equation.

Since egcs-1.0.2 appears to be the default Linux compiler, at least
if one looks at http://sunsite.unc.edu/pub/Linux/GCC,
it may be better to find such wrong code generation problems.
I have produced a combined source/disassembler of the file
linux/net/ipv4/tcp_ipv4.c and placed it at
http://www.snafu.de/~zahn/tcp_ipv4.txt.gz

I could recompile the kernel with another compiler, but since I have
no way to reproduce the bug this could only be useful if I happen
to see the bug again in a kernel compiled with another compiler. In
that case we would know that the bug is not compiler-related.

Regards
Steffen

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