Mailinglist Archive: opensuse-virtual (6 mails)

[Shrenik Bhura <shrenik.bhura@xxxxxxxxxxxxxx>]

I have run into some weird situation wherein though I can ssh to the
domU's (ltsp particularly) but when several users(8-10) have ssh
sessions (ltsp in particular) it slows down almost coming to a grinding
unresponsive halt. Only a xm shutdown ltsp or a restart seems to let me
in again.

So it is not that no packets go through to ltsp but then progressively
seem to be dropped. But yet when I do a xentop I see that all packets
are dropped.

No firewall running on Dom0 and ltsp DomU. A firewall on daak DomU only
which is acting as an internet gateway for ltsp as well.

# xentop
xentop  -       17:38:50        Xen     3.3.1_18546_12-3.1      
        
        
        
        
        
        
        
        
        
        
        
        
        
3       domains:        1       running,        2       blocked,        0       
paused,         0       crashed,        0
dying,  0       shutdown        
        
        
        
        
Mem:    3141832k        total,  3131412k        used,   10420k  free    CPUs:   
4       @
2133MHz         
        
        
        
        
        
        
        
*
*       *NAME*  *STATE*         *CPU(sec)*      *CPU(%)*        *MEM(k)*        
*MEM(%)*
*MAXMEM(k)*     *MAXMEM(%)*     *VCPUS*         *NETS*  *NETTX(k)*      
*NETRX(k)*
*VBDS*  *VBD_OO*        *VBD_RD*        *VBD_WR*        *SSID*  *
*

        daak    --b---  9331    0.7     532348  16.9    532480  16.9    1       
2       0       0
2       0       0       0       0       
Net0    RX:     0bytes  0pkts   0err    23928drop       TX:     0bytes  0pkts   
0err    0drop   
        
        
        
        
        
        
        
Net1    RX:     0bytes  0pkts   0err    274084drop      TX:     0bytes  0pkts   
0err
0drop   
        
        
        
        
        
        
        

        Domain-0        -----r  75748   3.1     618496  19.7    no      limit   
n/a     4
0       0       0       0       0       0       0       0

        ltsp    --b---  11071   0       1749884         55.7    1858560         
59.2    2       2       0
0       1       0       0       0       0       
Net0    RX:     0bytes  0pkts   0err    5255drop        TX:     0bytes  0pkts   
0err    0drop   
        
        
        
        
        
        
        
Net1    RX:     0bytes  0pkts   0err    27764drop       TX:     0bytes  0pkts   
0err    0drop   
        
        
        
        
        
        
        



Versions
dom0 - Novell SLES 11
ltsp-domU - opensuse 11.1
xen 3.3.1

Do let me know if I can furnish any further info to help me debug this.

Regards,
SB

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