cvs commit: src/sys/net if_bridge.c
thompsa at FreeBSD.org
Tue Aug 30 20:30:44 GMT 2005
thompsa 2005-08-30 20:30:44 UTC
FreeBSD src repository
Modified files: (Branch: RELENG_6)
MFC: if_bridge, r1.20
> Fix a panic in softclock() if the interface is destroyed with a bpf consumer
> This is caused by bpf_detachd clearing IFF_PROMISC on the interface which does
> a SIOCSIFFLAGS ioctl. The problem here is that while the interface has been
> stopped, IFF_UP has not been cleared so IFF_UP != IFF_DRV_RUNNING, this causes
> the ioctl function to init() the interface which resets the callouts.
> The destroy then completes and frees the softc but softclock will panic on a
> dead callout pointer.
> Ensure ifp->if_flags matches reality by clearing IFF_UP when we destroy.
Approved by: re (kensmith), mlaier (mentor)
Revision Changes Path
126.96.36.199 +1 -0 src/sys/net/if_bridge.c
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