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[ 0.116007] khelper used greatest stack depth: 3312 bytes left
[ 0.116007] ------------[ cut here ]------------
[ 0.116007] WARNING: at kernel/softirq.c:141 ()
[ 0.116007] Modules linked in:
[ 0.116007] Pid: 7, comm: khelper Not tainted 2.6.26.5-grsec #1
[ 0.116007] [<c08196c9>] [<c0829a2b>] [<c0988f35>] [<c0829a2b>] [<c0930438>] [<c085ea84>]
[<c087da39>] [<c08270d6>] [<c081cffd>] [<c081af32>] [<c081bee1>] [<c0824561>] [<c082448f>]
[<c0803bb7>] =======================
[ 0.116007] ---[ end trace 847e4d83bdf41d97 ]---
[ 0.116007] net_namespace: 636 bytes

and my Ethernet controller is not working any more
without grsec patch all was fine
ideas ?

coderx wrote:and my Ethernet controller is not working any more
without grsec patch all was fine
ideas ?

could you reproduce this with KALLSYMS enabled (to get a meaningful backtrace)? also post the top of make checkstack please.