kern/143046: panics since mxge(4) update

Ben Wilber ben at
Thu Jan 21 03:50:07 UTC 2010

>Number:         143046
>Category:       kern
>Synopsis:       panics since mxge(4) update
>Confidential:   no
>Severity:       serious
>Priority:       high
>Responsible:    freebsd-bugs
>State:          open
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Thu Jan 21 03:50:06 UTC 2010
>Originator:     Ben Wilber
>Release:        FreeBSD 9.0-CURRENT amd64
System: FreeBSD exodus 9.0-CURRENT FreeBSD 9.0-CURRENT #5: Mon Jan 18 22:16:02 EST 2010 bw at exodus:/usr/obj/usr/src/sys/COMRADE amd64

Since mxge(4) was updated in r202120, a Dell R710 equipped with a Myricom Myri10G-PCIE-8A panics regularly.  Slices are not enabled.

db:0:kdb.enter.default>  bt
Tracing pid 12 tid 100063 td 0xffffff00092c7390
mb_free_ext() at mb_free_ext+0x15
m_freem() at m_freem+0x23
ether_input() at ether_input+0x56
mxge_intr() at mxge_intr+0x5b2
intr_event_execute_handlers() at intr_event_execute_handlers+0x132
ithread_loop() at ithread_loop+0x7d
fork_exit() at fork_exit+0x121
fork_trampoline() at fork_trampoline+0xe





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