My first question is whether PF_RING-5.6.1 is expected to work with 2.6.18
(CentOS 5), or whether it is necessary to upgrade to 2.6.32 (CentOS 6), as the
kernel module source and webpage appear to conflict.
Quote http://www.ntop.org/products/pf_ring/:
"Available for Linux kernels 2.6.32 and newer."
Quote PF_RING-5.6.1/kernel/pf_ring.c:
"PF_RING works on kernel 2.6.18 or newer."
My test program is:
const int N = ...;
pfring_open("eth0", N, 0);
For larger values of N, I observe a kernel panic in vmalloc_user (via
allocate_shared_memory, via ring_mmap).
On the kernel version in the subject line, the value of N which causes the
kernel panic is somewhere between 65000 and 65500. On 32bit kernel version
2.6.18-92.el5, it is somewhere between 10000 and 20000.
Can anyone help to explain this?
Regards,
Matt._______________________________________________
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