Hi Robert, 2. Any ideas of something to try in order to make this repeatable? > What i would do to reproduce it, is make a script establishing the bridge, then flooding the bridge with some external ping -f, then shuting down the bridge. If there is a refcount release problem, it should appear on eavy load (some buffer overflow, or something like that). Also, are you playing with ebtables? How do you use this bridge? #Louis. Date: Wed, 31 Aug 2005 19:04:01 -0700 > From: Robert Scott <rbscott@xxxxxxxxxxx> > Subject: [Bridge] unregister_netdevice: waiting for br0 to become > free. Usage count = 1 (2.6.12.3 <http://2.6.12.3/>) > To: bridge@xxxxxxxxxxxxxx > Message-ID: <8189B9F5-DF6E-4032-8D2D-D5301A02A081@xxxxxxxxxxx> > Content-Type: text/plain; charset=US-ASCII; delsp=yes; format=flowed > > Hello, > > I know that this bug has been discussed before at length on this > mailing list, but previous post seemed to indicate that it was fixed > before kernel 2.6.12. I am still seeing this occasionally in kernel > 2.6.12.3 <http://2.6.12.3/>. The system is running knoppix, and IPV6 is > not compiled > into the kernel(other posts mentioned numerous problems with the IPV6 > code). But every so often, when bringing down the bridge (it doesn't > happen every time), the process hangs, and the following message > appears in dmesg repeatedly: > > 'unregister_netdevice: waiting for br0 to become free. Usage count = 1' > > None of the processes involved can be killed, and an attempt to run > an ifconfig results in a process that is also waiting forever. At > this point the box must be rebooted forcefully. > > Two questions. > 1. In a previous post, someone mentioned one solution was to > commenting out the check that is hanging in the kernel. Does this > check preventing something terrible from happening(i assumed that it > does), or is it safe to remove it. > 2. Any ideas of something to try in order to make this repeatable? > > thanks, > --robert scott -------------- next part -------------- An HTML attachment was scrubbed... URL: http://lists.osdl.org/pipermail/bridge/attachments/20050902/10b9e1c2/attachment.htm
