panic ixgbevf / SMP under high network load

[Gleb Smirnoff]

On Wed, Oct 31, 2012 at 10:47:59AM +0100, R?mi Pauchet wrote:
R> Hi,
R> 
R> from a svn checkout r242392:
R> 
R> #0  doadump (textdump=1) at /usr/svn/head/sys/kern/kern_shutdown.c:266
R> #1  0xffffffff808d3b72 in kern_reboot (howto=260) at /usr/svn/head/sys/kern/kern_shutdown.c:449
R> #2  0xffffffff808d359a in panic (fmt=0x0) at /usr/svn/head/sys/kern/kern_shutdown.c:637
R> #3  0xffffffff8033f737 in db_panic (addr=Variable "addr" is not available.
R> ) at /usr/svn/head/sys/ddb/db_command.c:482
R> #4  0xffffffff8033fbe1 in db_command (last_cmdp=0xffffffff812eb1e0, cmd_table=Variable "cmd_table" is not available.
R> ) at /usr/svn/head/sys/ddb/db_command.c:449
R> #5  0xffffffff8033fe30 in db_command_loop () at /usr/svn/head/sys/ddb/db_command.c:502
R> #6  0xffffffff80341f89 in db_trap (type=Variable "type" is not available.
R> ) at /usr/svn/head/sys/ddb/db_main.c:231
R> #7  0xffffffff8090c388 in kdb_trap (type=12, code=0, tf=0xffffff80003739c0) at /usr/svn/head/sys/kern/subr_kdb.c:654
R> #8  0xffffffff80c61dcd in trap_fatal (frame=0xffffff80003739c0, eva=Variable "eva" is not available.
R> ) at /usr/svn/head/sys/amd64/amd64/trap.c:867
R> #9  0xffffffff80c61f8a in trap_pfault (frame=0xffffff80003739c0, usermode=0) at /usr/svn/head/sys/amd64/amd64/trap.c:789
R> #10 0xffffffff80c626ca in trap (frame=0xffffff80003739c0) at /usr/svn/head/sys/amd64/amd64/trap.c:463
R> #11 0xffffffff80c4bdb3 in calltrap () at /usr/svn/head/sys/amd64/amd64/exception.S:228
R> #12 0xffffffff805a5fbf in ixv_rxeof (que=0xfffffe000220cd00, count=118) at /usr/svn/head/sys/dev/ixgbe/ixv.c:3438
R> #13 0xffffffff805aac91 in ixv_handle_que (context=Variable "context" is not available.
R> ) at /usr/svn/head/sys/dev/ixgbe/ixv.c:980
R> #14 0xffffffff80919df3 in taskqueue_run_locked (queue=0xfffffe000221a900) at /usr/svn/head/sys/kern/subr_taskqueue.c:308
R> #15 0xffffffff8091a89e in taskqueue_thread_loop (arg=Variable "arg" is not available.
R> ) at /usr/svn/head/sys/kern/subr_taskqueue.c:497
R> #16 0xffffffff808a3e45 in fork_exit (callout=0xffffffff8091a860 <taskqueue_thread_loop>, arg=0xfffffe000220cd58, 
R>     frame=0xffffff8000373c00) at /usr/svn/head/sys/kern/kern_fork.c:995
R> #17 0xffffffff80c4c2de in fork_trampoline () at /usr/svn/head/sys/amd64/amd64/exception.S:602

This looks like another one.

Can you please obtain the following information from kgdb:

(kgdb) frame 12
(kgdb) print *mp


-- 
Totus tuus, Glebius.