Hi Pradeep, >Looks like a possible memory leak. Your interfaces suggest you are using Xen(?). We are using OpenWrt on AP. >Did you add any code? If yes, check for memory leaks, I guess there may be leak in Bridge module associated with 2.6.21.5 kernel. As when we attach the two interface with same bridge, only then we are facing this problem. Say I have each port attached to there own bridge, and when I route traffic from one host to other, We will not face this behavior. Any suggestion on how to debug/solve the problem. Thanks, Sharad. -----Original Message----- From: pradeep singh [mailto:pradeep.rautela@xxxxxxxxx] Sent: Tuesday, April 14, 2009 2:01 AM To: Tekale Sharad-FHJN78 Cc: kernelnewbies@xxxxxxxxxxxx Subject: Re: Out of memory + skbuff_head_cache On Tue, Apr 14, 2009 at 8:37 AM, Tekale Sharad-FHJN78 <FHJN78@xxxxxxxxxxxx> wrote: > Hi, > > I'm using linux 2.6.21.5 and our kernel is freeze. > > The problem I'm facing is, when I create a software bridge using > $brctl command. and add two interfaces say, eth0.0 and eth0.1, this way... > $brctl addbr br-lan > $brctl addif br-lan eth0.0 > $brctl addif br-lan eth0.1 > > When I send traffic from a host connected to one port to host > connected at other at or above end 60Mbits/sec , > soon all the memory is dried up/consumed and and system crashes. Looks like a possible memory leak. Your interfaces suggest you are using Xen(?). Did you add any code? If yes, check for memory leaks. HTH > > Observation: > On initial start up: > $cat /proc/slabinfo | grep skbuff_head_cache skbuff_head_cache 120 > 120 192 20 1 : tunables 120 60 0 : > slabdata 6 > > Before crash: > $cat /proc/slabinfo | grep skbuff_head_cache skbuff_head_cache 4260 > 4260 192 20 1 : tunables 120 60 0 : > slabdata 213 213 0 > Can any one help me to refer to some patch or point to some location > in code from where memory is failed to deallocate. > > Thanks, > Sharad. -- Pradeep -- To unsubscribe from this list: send an email with "unsubscribe kernelnewbies" to ecartis@xxxxxxxxxxxx Please read the FAQ at http://kernelnewbies.org/FAQ
