[Asterisk-Users] E100P driver overwrites memory used bye linux-kernel

[Steffen Koepf]

Hi,

we have a Digium E100P in use with asterisk and the driver of the E100P
overwrites important memory locations of the kernel. The side-effects
are malloc-errors when simple shell commands are used, unable to compile
anything (internal compiler errors), files that are edited are in the
state as before editing. The memory is ok, tested this with memtest86
and no problems occur if the driver is not loaded.

System:
- CPU: Athlon XP 2600+
- RAM: 1 GB DDR400 RAM
- BRD: EPOX 8KRA2i KT600

Kernel 2.4.21
(4GB) High Memory Support
[*] HIGHMEM I/O support
[*] MTRR (Memory Type Range Register) support
[*] Local APIC support on uniprocessors
[*] IO-APIC support on uniprocessors

can the highmem i/o support be the cause of the problems?
Has anyone had this problem, too?

cu,

Steffen Koepf