Hi,

in the last days we noticed some strange memory problems with Monta
Vista's kernel port for the IBM405GP/CR (kernel 2.4.2 and 2.4.0). Some
userspace programs crash when calling free() and the bash shell cannot
startup because it does not get memory (see attached bootlog).

Here aresome examples:

1) While unloading a custom kernel module, we get:
Trying to vfree() nonexistent vm area (da03c000). We had no problems on
x86 architecture and 2.4.0-test2.

2) see attached bootlog.

3) When using busybox 0.50, the busybox shell crashes, when the command
buffer is free()ed. This is for example done, when you press return at
the console. I put a debug message right before the free and behind it
and only the message before the free is printed !

We are shure that these problem have something todo the 2.4.x kernel for
the 405 !

Are problems like this known and solved issues ?

Matthias
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\ Matthias Fuchs                                 \
 \ esd electronic system design Gmbh              \
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