Date: Wed, 5 Jan 2005 18:26:17 +0100 From: "J. Martin Petersen" <techlists@motrix.dk> To: <freebsd-stable@freebsd.org> Subject: RE: netstat fails with memory allocation error and error in kvm_read Message-ID: <20050105172615.CF820C32C@brugere.aub.dk>
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> I just got another "netstat: kvm_read: Bad address". > vm.kvm_free was 675278848 two seconds earlier and a couple of > seconds later (and also currently). We just had another hard hang, and this time I managed to break to the debugger on the serial console. I got this stack trace <http://www.aub.dk/~jmp/fw/trace>, which seems to indicate that pf is messing up somehow. I of course didn't have the ddb man or the handbook section on kernel debugging at hand, so I've just printed it for the next time it happens. Both 'show witness' and 'show locks' came up empty. What's the most effective way to hunt down these deadlocks with the online kernel debugger? Best regards Martin
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