mpd5/Netgraph issues after upgrading to 7.4

[Eugene Grosbein]

16.07.2012 07:13, Bjoern A. Zeeb пишет:
> 
> On 15. Jul 2012, at 20:54 , Mike Tancsa wrote:
> 
>> On 7/10/2012 2:24 AM, Przemyslaw Frasunek wrote:
>>>> It seems, Przemyslaw Frasunek uses proxyarp?
>>>> I have no such problems but I do not use proxyarp.
>>>> Could you get rid of it, Przemyslaw?
>>>
>>> No, I don't use proxy ARP. I have about 300 PPPoE ng interfaces and 10 VLANs
>>> with plain IP traffic. ARP table has only < 50 entries, all of them are dynamic.
>>
>> I had a new one. Unfortunately, it did not generate a coredump file for
>> some reason.  Kernel was from ~ mid Feb
>>
>> Fatal trap 9: general protection fault while in kernel mode
>> cpuid = 1; apic id = 02
> ...
>> Uptime: 151d12h10m10s
>> ipfw: 11 Deny TCP 192.168.1.99:33822 208.47.254.32:80 in via ng471
>> Dumping 883 out of 8145 MB:ipfw: 13 Deny UDP 64.7.157.21:512
>> 192.168.254.46:137 in via ng21
>> panic: bufwrite: buffer is not busy???
>> cpuid = 1
>> Uptime: 151d12h10m10s
> 
> Hmm this one means we didn't stop all CPUs properly on panic;  I think that
> was fixed since?  At least it's the reason you didn't have a chance to get
> the core dump.

RELENG_8 (and others, perhaps) still needs additional patch
(by Andry Gapon) in case of USB keyboard to write crashdump properly.

I've sent its URL recently:
http://www.grosbein.net/freebsd/patches/stop_scheduler_on_panic.usb.diff

> 
> However of course the initial problem leading to the panic of course
> is its own issue still.