Strange TCP-related hang on startup w/ recent CVSUP
kris at obsecurity.org
Wed Jun 8 06:11:45 GMT 2005
On Wed, Jun 08, 2005 at 12:37:59AM -0500, Terry Kennedy wrote:
> I have a number of boxes which have been running well w/ 5.4-stable. The
> last kernel and userland builds on those boxes were on May 26th, from a
> CVSUP done that same day.
> Last night I did another CVSUP and the usual buildworld/buildkernel/in-
> stallkernel/installworld/mergemaster, and the boxes wouldn't come back up,
> hanging in sbwait state at the point where they would normally do their
> first net access.
> In one box, this is a batch of NFS mounts; on the other it is the initial
> ntpdate query. At this point the boxes don't respond to pings and sit for-
> ever (at least an hour) not doing anything. Typing ^C on the console aborts
> the hanging process, and then the startup proceeds. With a ping going from
> another system, I see that the net doesn't come up on the problem boxes until
> several seconds into the execution of the next network-related command - it
> is almost as if the previous ifconfig (done from rc.conf) didn't have any
> effect (despite the "link up" message on the console). The other oddity is
> that I get a "rpc.lockd: 100024 RPC: Port mapper failure" right after lockd
> starts, even though other net commands have completed successfully.
> Booting from kernel.old (the May 26th one) boots normally, so it is a ker-
> nel issue, not something in userland.
Are you sure you didn't change your kernel config or forget to rebuild
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