excellent.
On 02/19/2014 12:29 AM, Daniel Borkmann wrote:
On 02/17/2014 01:44 PM, Daniel Borkmann wrote:
On 02/16/2014 04:13 PM, Daniel Borkmann wrote:
On 02/16/2014 03:15 PM, Lorenzo Pistone wrote:
On 02/16/2014 02:00 PM, Daniel Borkmann wrote:
It's a kernel bug in the VM subsystem, dealing with transparent
hugepages.
A patch was submitted but is so far not yet included, I'll ask for
a status
update on lkml so that we get this sorted out.
Meanwhile you can compile your kernel with THP turned off.
Thanks for the info, I found the thread and I will follow it.
Does disabling thp at boot time or through sysctl work for you? It
doesn't for me, and I'm not such a fan of kernel recompiling as
pastime. Decently recent libpcap use the same mmap mechanism, but I
see that you have the problem in allocating the TX buffer, which
libpcap doesn't do, right?
It should actually also work on rx mmap'ed buffer, I'd expect libpcap
might not have this issue as it doesn't call m{un}lock() on THPs.
I just tested and resubmitted the proposed fix to lkml for inclusion;
kernel since 3.11 are affected.
Ok, patch just got queued for kernel + stable inclusion, so it should
hit your distro soon. ;)
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