[Xen-bugs] [Bug 1753] New: xentop segfault

[bugzilla-daemon@xxxxxxxxxxxxxxxxxxx]

http://bugzilla.xensource.com/bugzilla/show_bug.cgi?id=1753

           Summary: xentop segfault
           Product: Xen
           Version: unspecified
          Platform: x86-64
        OS/Version: Linux-2.6
            Status: NEW
          Severity: trivial
          Priority: P2
         Component: Hypervisor
        AssignedTo: xen-bugs@xxxxxxxxxxxxxxxxxxx
        ReportedBy: sascha.reimann@xxxxxxxxxx
                CC: sascha.reimann@xxxxxxxxxx


xentop quits with a segmentation fault if the name of a bridge is
uppercase-only on debian squeeze (lenny is not affected).

vnode03:~$ brctl show
bridge name     bridge id               STP enabled     interfaces
EXT             8000.de44520dccfb       no              eth0.3000

vnode03:~$ cat /etc/debian_version 
6.0
vnode03:~$ dpkg -l xen-hypervisor-4.0-amd64
Desired=Unknown/Install/Remove/Purge/Hold
| Status=Not/Inst/Conf-files/Unpacked/halF-conf/Half-inst/trig-aWait/Trig-pend
|/ Err?=(none)/Reinst-required (Status,Err: uppercase=bad)
||/ Name                                            Version                    
                    Description
+++-===============================================-===============================================-==============================================================================================================
ii  xen-hypervisor-4.0-amd64                        4.0.1-1                    
                    The Xen Hypervisor on AMD64
vnode03:~$ uname -a
Linux vnode03 2.6.32-5-xen-amd64 #1 SMP Wed Jan 12 05:46:49 UTC 2011 x86_64
GNU/Linux

strace -fF /usr/lib/xen-4.0/bin/xentop -b -i1:
[...]
getdents(6, /* 18 entries */, 32768)    = 536
access("/sys/class/net/lo/bridge", F_OK) = -1 ENOENT (No such file or
directory)
access("/sys/class/net/eth0/bridge", F_OK) = -1 ENOENT (No such file or
directory)
access("/sys/class/net/eth1/bridge", F_OK) = -1 ENOENT (No such file or
directory)
access("/sys/class/net/vif89.0/bridge", F_OK) = -1 ENOENT (No such file or
directory)
access("/sys/class/net/EXT/bridge", F_OK) = 0
access("/sys/class/net/vif97.0/bridge", F_OK) = -1 ENOENT (No such file or
directory)
access("/sys/class/net/tap97.0/bridge", F_OK) = -1 ENOENT (No such file or
directory)
getdents(6, /* 0 entries */, 32768)     = 0
close(6)                                = 0
brk(0xe80000)                           = 0xe80000
brk(0xe61000)                           = 0xe61000
brk(0xe82000)                           = 0xe82000
read(5, "  0    639807      468       6  "..., 1024) = 1024
--- SIGSEGV (Segmentation fault) @ 0 (0) ---
+++ killed by SIGSEGV +++


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