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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@lists.xensource.com
ReportedBy: sascha.reimann@hostway.de
CC: sascha.reimann@hostway.de


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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