[dropping -net]
On Thu, 2005-Nov-03 22:56:30 -0800, kamal kc wrote:
as i said before the compression/decompression works
fine. but soon the kernel would panic with one
of the vm_fault: error message.
What's the exact panic and traceback? Have you enabled the various
sanity checks (WITNESS,
Peter Jeremy wrote:
what would be the best possible way to
allocate/deallocate 14KB memory per packet without
causing vm_faults ??
The most efficient way would be to statically allocate the dictionary
and string tables. The downside is that you then need to serialise
the [de]compression.
On 2005-11-03 22:56, kamal kc [EMAIL PROTECTED] wrote:
for my compression/decompression i use string tables and
temporary buffers which take about 14KB of memory per
packet.
If you're allocating 14 KB of data just to send
(approximately) 1.4 KB
and then you throw away the 14 KB immediately,
- Am I not following the correct procedures to
allocate and deallocate memory in kernel space ??
- Or is the problem elsewhere ??
You didn't say whether you've checked your code for buffer
overruns.
If the fault is happening in seemingly unrelated parts of
the kernel with your module is
On 2005-11-02 18:39, kamal kc [EMAIL PROTECTED] wrote:
dear everybody,
i am trying to compress/decompress ip packets.
for this i have implemented the adaptive lzw compression.
i put the code in the ip_output.c and do my compression/decompression
just before the if_output() function call so
for my compression/decompression i use string
tables and temporary
buffers which take about 14KB of memory per
packet.
If you're allocating 14 KB of data just to send
(approximately) 1.4 KB
and then you throw away the 14 KB immediately, it
sounds terrible.
yes that's true.
since i
dear everybody,
i am trying to compress/decompress ip packets.
for this i have implemented the adaptive lzw compression.
i put the code in the ip_output.c and do my compression/decompression
just before the if_output() function call so that i won't interfere with
the ip processing of the kernel.
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