On 07/20/2015 08:26, Nikos Vassiliadis wrote:
Hi,
regarding this bug... When carp information is about to be printed,
it stops. All network activity has stopped by then. For example:
bridge0: flags=8943<UP,BROADCAST,RUNNING,PROMISC,SIMPLEX,MULTICAST>
metric 0 mtu 1280
ether 02:48:9e:59:98:00
inet 156.0.0.2 netmask 0xffffffc0 broadcast 156.0.0.63
inet 156.0.0.10 netmask 0xffffffc0 broadcast 156.0.0.63 vhid 10
nd6 options=9<PERFORMNUD,IFDISABLED>
load: 1.18 cmd: ifconfig 1683 [running] 4.14r 0.00u 0.01s 35% 2268k
load: 1.18 cmd: ifconfig 1683 [running] 4.59r 0.00u 0.01s 36% 2268k
load: 1.18 cmd: ifconfig 1683 [running] 4.85r 0.00u 0.01s 39% 2268k
load: 1.18 cmd: ifconfig 1683 [running] 5.05r 0.00u 0.01s 41% 2268k
load: 1.18 cmd: ifconfig 1683 [running] 5.27r 0.00u 0.01s 39% 2268k
load: 1.18 cmd: ifconfig 1683 [running] 5.48r 0.00u 0.01s 41% 2268k
load: 1.18 cmd: ifconfig 1683 [running] 5.69r 0.00u 0.01s 43% 2268k
^C^C^C^Z
load: 1.86 cmd: ifconfig 1683 [*carp_if] 31.26r 0.00u 30.67s 88% 2268k
load: 1.86 cmd: ifconfig 1683 [*carp_if] 31.42r 0.00u 30.67s 88% 2268k
^Z^Z^Z^C^C^C^C
load: 0.22 cmd: ifconfig 1683 [*carp_if] 645.27r 0.00u 30.67s 0% 2268k
load: 0.21 cmd: ifconfig 1683 [*carp_if] 645.81r 0.00u 30.67s 0% 2268k
load: 0.21 cmd: ifconfig 1683 [*carp_if] 646.17r 0.00u 30.67s 0% 2268k
Eventually the kernel will panic:
panic: deadlkres: possible deadlock detected for 0xfffff800045b44a0,
blocked for 900246 ticks
Is this the same bug, Jason?
I could try the patch on my bhyve cluster.
Thanks,
Nikos
Nikos,
The report at https://bugs.FreeBSD.org/200319 and associated pfSense
report at https://redmine.pfSense.org/issues/4607 indicate that network
traffic sent to the CARP IP is causing the issue. I don't see anything
that mentions printing the information.
However with that said, I'm not familiar with the issue as I've never
used CARP. I'm just doing my due diligence passing on a report that the
patch resolved another user's issue over in the FreeBSD Forums:
https://forums.FreeBSD.org/threads/carp-bridge-crashes-freezes-on-freebsd-10.52427
Hope that helps.
Jason
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