Bug #1806

Updated by tuxillo 3 months ago

I got two virtual machines running DFBSD. One is KVM (512MB mem) and the other 
 one is under VMware (1024MB). 


 kvm is the NFS server which is exporting /usr like this: 
 /usr -alldirs -maproot=root: -network ....@ 


 From the vmware I mount it, and start copying the repo using rsync: 


 # rsync -av -progress /usr/src /mnt/target/usr/@ 


 After a while the following warning appears in the kvm (NFS server): 
 Warning, objcache(mbuf): Exhausted! 


 # netstat -m 
 9056/9056 mbufs in use (current/max): 
 134/4528 mbuf clusters in use (current/max) 
           9190 mbufs and mbuf clusters allocated to data 
 2532 Kbytes allocated to network (22% of mb_map in use) 
 163 requests for memory denied 
 0 requests for memory delayed 
 0 calls to protocol drain routines 


 In the client part the copy stops: 


     24084480    10%      4.10MB/s      0:00:48 
 rsync: writefd_unbuffered failed to write 4 bytes to socket [sender]: Broken 
 pipe (32) 
 rsync: write failed on 
 RPC struct is bad (72) 
 rsync error: error in file IO (code 11) at receiver.c(302) [receiver=3.0.7] 
 [sender] io timeout after 30 seconds -- exiting 
 rsync error: timeout in data send/receive (code 30) at io.c(140) [sender=3.0.7] 
 [vmware] /usr/src> 


 And I can't even ssh from outside the kvm machine: 
 % ssh 
 antonioh@'s password:  
 Timeout, server not responding.