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 From:  Rolf Sommerhalder <rolf dot sommerhalder at alumni dot ethz dot ch>
 To:  m0n0wall at lists dot m0n0 dot ch
 Subject:  Re: [m0n0wall] 1.2b8 hanged: all mbufs exhausted
 Date:  Mon, 27 Jun 2005 23:06:48 +0200
My generic-PC 1.2b8 runs as a filtering bridge on a 4 Mbit/s symmetric 
connection and after 3 days uptime shows in the syslog:
    /kernel: All mbufs exhausted, please see tuning(7).

The bridge apparently still works, even though log outputs is severly 
limited to a few lines only (I had set it at 200 lines).

output of 'netstat -m' is:

$ netstat -m
9468/9536/9536 mbufs in use (current/peak/max):
	100 mbufs allocated to data
	9368 mbufs allocated to packet headers
69/198/2384 mbuf clusters in use (current/peak/max)
2780 Kbytes allocated to network (38% of mb_map in use)
46 requests for memory denied
0 requests for memory delayed
6 calls to protocol drain routines

Any hints of ehat I should try? (If needed, I can compile the kernel and 
produce a new custom image, no problem.)