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Philipp Wuensche

2010-Aug-24 23:21 UTC

Crashes on X7SPE-HF with em

Hi,

I'm having trouble with a system on a Supermicro X7SPE-HF, it crashes
about once a day. I haven't found a way to trigger this yet.

The system has a bunch of VLANs on em1, it does routing between them.

Currently its running 8-STABLE but it happend with 8.1-RELEASE too.

greetings,
Philipp

# kgdb kernel.debug /var/crash/vmcore.0
GNU gdb 6.1.1 [FreeBSD]
Copyright 2004 Free Software Foundation, Inc.
GDB is free software, covered by the GNU General Public License, and you are
welcome to change it and/or distribute copies of it under certain
conditions.
Type "show copying" to see the conditions.
There is absolutely no warranty for GDB.  Type "show warranty" for
details.
This GDB was configured as "amd64-marcel-freebsd"...

Unread portion of the kernel message buffer:


Fatal trap 9: general protection fault while in kernel mode
cpuid = 0; apic id = 00
instruction pointer	= 0x20:0xffffffff8061f5a8
stack pointer	        = 0x28:0xffffff80000e64d0
frame pointer	        = 0x28:0xffffff80000e64e0
code segment		= base 0x0, limit 0xfffff, type 0x1b
			= DPL 0, pres 1, long 1, def32 0, gran 1
processor eflags	= interrupt enabled, resume, IOPL = 0
current process		= 0 (em1 taskq)
trap number		= 9
panic: general protection fault
cpuid = 0
Uptime: 13h24m39s
Physical memory: 4079 MB
Dumping 1349 MB: 1334 1318 1302 1286 1270 1254 1238 1222 1206 1190 1174
1158 1142 1126 1110 1094 1078 1062 1046 1030 1014 998 982 966 950 934
918 902 886 870 854 838 822 806 790 774 758 742 726 710 694 678 662 646
630 614 598 582 566 550 534 518 502 486 470 454 438 422 406 390 374 358
342 326 310 294 278 262 246 230 214 198 182 166 150 134 118 102 86 70 54
38 22 6

Reading symbols from /boot/kernel/zfs.ko...Reading symbols from
/boot/kernel/zfs.ko.symbols...done.
done.
Loaded symbols for /boot/kernel/zfs.ko
Reading symbols from /boot/kernel/opensolaris.ko...Reading symbols from
/boot/kernel/opensolaris.ko.symbols...done.
done.
Loaded symbols for /boot/kernel/opensolaris.ko
Reading symbols from /boot/kernel/coretemp.ko...Reading symbols from
/boot/kernel/coretemp.ko.symbols...done.
done.
Loaded symbols for /boot/kernel/coretemp.ko
Reading symbols from /boot/kernel/ahci.ko...Reading symbols from
/boot/kernel/ahci.ko.symbols...done.
done.
Loaded symbols for /boot/kernel/ahci.ko
Reading symbols from /boot/kernel/ipmi.ko...Reading symbols from
/boot/kernel/ipmi.ko.symbols...done.
done.
Loaded symbols for /boot/kernel/ipmi.ko
Reading symbols from /boot/kernel/smbus.ko...Reading symbols from
/boot/kernel/smbus.ko.symbols...done.
done.
Loaded symbols for /boot/kernel/smbus.ko
Reading symbols from /boot/kernel/pflog.ko...Reading symbols from
/boot/kernel/pflog.ko.symbols...done.
done.
Loaded symbols for /boot/kernel/pflog.ko
Reading symbols from /boot/kernel/pf.ko...Reading symbols from
/boot/kernel/pf.ko.symbols...done.
done.
Loaded symbols for /boot/kernel/pf.ko
#0  doadump () at pcpu.h:224
224		__asm("movq %%gs:0,%0" : "=r" (td));
(kgdb) list *0xffffffff8061f5a8
0xffffffff8061f5a8 is in m_tag_locate (/usr/src/sys/kern/uipc_mbuf2.c:389).
384		if (t == NULL)
385			p = SLIST_FIRST(&m->m_pkthdr.tags);
386		else
387			p = SLIST_NEXT(t, m_tag_link);
388		while (p != NULL) {
389			if (p->m_tag_cookie == cookie && p->m_tag_id == type)
390				return p;
391			p = SLIST_NEXT(p, m_tag_link);
392		}
393		return NULL;
(kgdb) backtrace
#0  doadump () at pcpu.h:224
#1  0xffffffff805c25ce in boot (howto=260)
    at /usr/src/sys/kern/kern_shutdown.c:416
#2  0xffffffff805c29dc in panic (fmt=0x0)
    at /usr/src/sys/kern/kern_shutdown.c:590
#3  0xffffffff808d40bd in trap_fatal (frame=0xffffffff80c8af60,
eva=Variable "eva" is not available.
)
    at /usr/src/sys/amd64/amd64/trap.c:777
#4  0xffffffff808d4a8b in trap (frame=0xffffff80000e6420)
    at /usr/src/sys/amd64/amd64/trap.c:588
#5  0xffffffff808b9d64 in calltrap ()
    at /usr/src/sys/amd64/amd64/exception.S:224
#6  0xffffffff8061f5a8 in m_tag_locate (m=0xffffff010bb45c00, cookie=0,
    type=6, t=Variable "t" is not available.
) at /usr/src/sys/kern/uipc_mbuf2.c:388
#7  0xffffffff806d7c56 in ip_ipsec_output (m=0xffffff80000e6598,
    inp=0xffffff010be43150, flags=0xffffff80000e6594,
    error=0xffffff80000e65a8, ifp=Variable "ifp" is not available.
) at mbuf.h:1006
#8  0xffffffff806d97ef in ip_output (m=0xffffff010bb45c00, opt=Variable
"opt" is not available.
)
    at /usr/src/sys/netinet/ip_output.c:483
#9  0xffffffff8073ef13 in tcp_output (tp=0xffffff000a9eb370)
    at /usr/src/sys/netinet/tcp_output.c:1190
#10 0xffffffff8073a42d in tcp_do_segment (m=0xffffff000a4cd800,
    th=0xffffff000a4df824, so=0xffffff000a9037f8, tp=0xffffff000a9eb370,
    drop_hdrlen=52, tlen=0, iptos=0 '\0', ti_locked=2)
    at /usr/src/sys/netinet/tcp_input.c:1484
#11 0xffffffff8073cf7b in tcp_input (m=0xffffff000a4cd800, off0=Variable
"off0" is not available.
)
    at /usr/src/sys/netinet/tcp_input.c:1029
#12 0xffffffff806d7660 in ip_input (m=0xffffff000a4cd800)
    at /usr/src/sys/netinet/ip_input.c:793
#13 0xffffffff8067bd3e in netisr_dispatch_src (proto=1, source=Variable
"source" is not available.
)
    at /usr/src/sys/net/netisr.c:917
#14 0xffffffff806720fd in ether_demux (ifp=0xffffff0004fd4000,
    m=0xffffff000a4cd800) at /usr/src/sys/net/if_ethersubr.c:901
#15 0xffffffff806724c7 in ether_input (ifp=0xffffff0004fd4000,
    m=0xffffff000a4cd800) at /usr/src/sys/net/if_ethersubr.c:760
#16 0xffffffff8067201f in ether_demux (ifp=0xffffff0002686800,
    m=0xffffff000a4cd800) at /usr/src/sys/net/if_ethersubr.c:810
#17 0xffffffff806724c7 in ether_input (ifp=0xffffff0002686800,
    m=0xffffff000a4cd800) at /usr/src/sys/net/if_ethersubr.c:760
#18 0xffffffff8033a00b in em_rxeof (rxr=0xffffff00026f7400, count=100,
    done=0x0) at /usr/src/sys/dev/e1000/if_em.c:4196
#19 0xffffffff8033aab8 in em_handle_que (context=Variable "context" is
not available.
)
    at /usr/src/sys/dev/e1000/if_em.c:1451
#20 0xffffffff805ff704 in taskqueue_run (queue=0xffffff0002727b80)
    at /usr/src/sys/kern/subr_taskqueue.c:239
#21 0xffffffff805ff976 in taskqueue_thread_loop (arg=Variable "arg" is
not available.
)
    at /usr/src/sys/kern/subr_taskqueue.c:360
#22 0xffffffff805985a8 in fork_exit (
    callout=0xffffffff805ff930 <taskqueue_thread_loop>,
    arg=0xffffff80003c1740, frame=0xffffff80000e6c80)
    at /usr/src/sys/kern/kern_fork.c:844
#23 0xffffffff808ba23e in fork_trampoline ()
    at /usr/src/sys/amd64/amd64/exception.S:566
#24 0x0000000000000000 in ?? ()
#25 0x0000000000000000 in ?? ()
#26 0x0000000000000000 in ?? ()
#27 0x0000000000000000 in ?? ()
#28 0x0000000000000000 in ?? ()
#29 0x0000000000000000 in ?? ()
#30 0x0000000000000000 in ?? ()
#31 0x0000000000000000 in ?? ()
#32 0x0000000000000000 in ?? ()
#33 0x0000000000000000 in ?? ()
#34 0x0000000000000000 in ?? ()
#35 0x0000000000000000 in ?? ()
#36 0x0000000000000000 in ?? ()
#37 0x0000000000000000 in ?? ()
#38 0x0000000000000000 in ?? ()
#39 0x0000000000000000 in ?? ()
#40 0x0000000000000000 in ?? ()
#41 0x0000000000000000 in ?? ()
#42 0x0000000000000000 in ?? ()
#43 0x0000000000000000 in ?? ()
#44 0x0000000000000000 in ?? ()
#45 0x0000000000000000 in ?? ()
#46 0x0000000000000000 in ?? ()
#47 0x0000000000000000 in ?? ()
#48 0x00000000010d1000 in ?? ()
#49 0x0000000000000000 in ?? ()
#50 0x0000000000000000 in ?? ()
#51 0xffffffff80cb0fa0 in sleepq_chains ()
#52 0xffffff00025087c0 in ?? ()
#53 0xffffff80000e6b20 in ?? ()
#54 0xffffff80000e6ad8 in ?? ()
#55 0xffffff00026877c0 in ?? ()
#56 0xffffffff805e64fa in sched_switch (td=0xffffff80003c1740,
    newtd=0xffffffff805ff930, flags=Variable "flags" is not available.
) at /usr/src/sys/kern/sched_ule.c:1844
Previous frame inner to this frame (corrupt stack?)

Mike Tancsa

2010-Aug-25 01:10 UTC

head link

Crashes on X7SPE-HF with em

At 06:55 PM 8/24/2010, Philipp Wuensche wrote:>Hi,
>
>I'm having trouble with a system on a Supermicro X7SPE-HF, it crashes
>about once a day. I haven't found a way to trigger this yet.
>
>The system has a bunch of VLANs on em1, it does routing between them.
>
>Currently its running 8-STABLE but it happend with 8.1-RELEASE too.
I dont think its the same problem you are seeing, but the patch in
<http://lists.freebsd.org/pipermail/freebsd-stable/2010-August/058296.html>http://lists.freebsd.org/pipermail/freebsd-stable/2010-August/058296.html

might be worth a try.

         ---Mike


>greetings,
>Philipp
>
># kgdb kernel.debug /var/crash/vmcore.0
>GNU gdb 6.1.1 [FreeBSD]
>Copyright 2004 Free Software Foundation, Inc.
>GDB is free software, covered by the GNU General Public License, and you are
>welcome to change it and/or distribute copies of it under certain
>conditions.
>Type "show copying" to see the conditions.
>There is absolutely no warranty for GDB.  Type "show warranty" for
details.
>This GDB was configured as "amd64-marcel-freebsd"...
>
>Unread portion of the kernel message buffer:
>
>
>Fatal trap 9: general protection fault while in kernel mode
>cpuid = 0; apic id = 00
>instruction pointer     = 0x20:0xffffffff8061f5a8
>stack pointer           = 0x28:0xffffff80000e64d0
>frame pointer           = 0x28:0xffffff80000e64e0
>code segment            = base 0x0, limit 0xfffff, type 0x1b
>                         = DPL 0, pres 1, long 1, def32 0, gran 1
>processor eflags        = interrupt enabled, resume, IOPL = 0
>current process         = 0 (em1 taskq)
>trap number             = 9
>panic: general protection fault
>cpuid = 0
>Uptime: 13h24m39s
>Physical memory: 4079 MB
>Dumping 1349 MB: 1334 1318 1302 1286 1270 1254 1238 1222 1206 1190 1174
>1158 1142 1126 1110 1094 1078 1062 1046 1030 1014 998 982 966 950 934
>918 902 886 870 854 838 822 806 790 774 758 742 726 710 694 678 662 646
>630 614 598 582 566 550 534 518 502 486 470 454 438 422 406 390 374 358
>342 326 310 294 278 262 246 230 214 198 182 166 150 134 118 102 86 70 54
>38 22 6
>
>Reading symbols from /boot/kernel/zfs.ko...Reading symbols from
>/boot/kernel/zfs.ko.symbols...done.
>done.
>Loaded symbols for /boot/kernel/zfs.ko
>Reading symbols from /boot/kernel/opensolaris.ko...Reading symbols from
>/boot/kernel/opensolaris.ko.symbols...done.
>done.
>Loaded symbols for /boot/kernel/opensolaris.ko
>Reading symbols from /boot/kernel/coretemp.ko...Reading symbols from
>/boot/kernel/coretemp.ko.symbols...done.
>done.
>Loaded symbols for /boot/kernel/coretemp.ko
>Reading symbols from /boot/kernel/ahci.ko...Reading symbols from
>/boot/kernel/ahci.ko.symbols...done.
>done.
>Loaded symbols for /boot/kernel/ahci.ko
>Reading symbols from /boot/kernel/ipmi.ko...Reading symbols from
>/boot/kernel/ipmi.ko.symbols...done.
>done.
>Loaded symbols for /boot/kernel/ipmi.ko
>Reading symbols from /boot/kernel/smbus.ko...Reading symbols from
>/boot/kernel/smbus.ko.symbols...done.
>done.
>Loaded symbols for /boot/kernel/smbus.ko
>Reading symbols from /boot/kernel/pflog.ko...Reading symbols from
>/boot/kernel/pflog.ko.symbols...done.
>done.
>Loaded symbols for /boot/kernel/pflog.ko
>Reading symbols from /boot/kernel/pf.ko...Reading symbols from
>/boot/kernel/pf.ko.symbols...done.
>done.
>Loaded symbols for /boot/kernel/pf.ko
>#0  doadump () at pcpu.h:224
>224             __asm("movq %%gs:0,%0" : "=r" (td));
>(kgdb) list *0xffffffff8061f5a8
>0xffffffff8061f5a8 is in m_tag_locate (/usr/src/sys/kern/uipc_mbuf2.c:389).
>384             if (t == NULL)
>385                     p = SLIST_FIRST(&m->m_pkthdr.tags);
>386             else
>387                     p = SLIST_NEXT(t, m_tag_link);
>388             while (p != NULL) {
>389                     if (p->m_tag_cookie == cookie &&
p->m_tag_id == type)
>390                             return p;
>391                     p = SLIST_NEXT(p, m_tag_link);
>392             }
>393             return NULL;
>(kgdb) backtrace
>#0  doadump () at pcpu.h:224
>#1  0xffffffff805c25ce in boot (howto=260)
>     at /usr/src/sys/kern/kern_shutdown.c:416
>#2  0xffffffff805c29dc in panic (fmt=0x0)
>     at /usr/src/sys/kern/kern_shutdown.c:590
>#3  0xffffffff808d40bd in trap_fatal (frame=0xffffffff80c8af60,
>eva=Variable "eva" is not available.
>)
>     at /usr/src/sys/amd64/amd64/trap.c:777
>#4  0xffffffff808d4a8b in trap (frame=0xffffff80000e6420)
>     at /usr/src/sys/amd64/amd64/trap.c:588
>#5  0xffffffff808b9d64 in calltrap ()
>     at /usr/src/sys/amd64/amd64/exception.S:224
>#6  0xffffffff8061f5a8 in m_tag_locate (m=0xffffff010bb45c00, cookie=0,
>     type=6, t=Variable "t" is not available.
>) at /usr/src/sys/kern/uipc_mbuf2.c:388
>#7  0xffffffff806d7c56 in ip_ipsec_output (m=0xffffff80000e6598,
>     inp=0xffffff010be43150, flags=0xffffff80000e6594,
>     error=0xffffff80000e65a8, ifp=Variable "ifp" is not
available.
>) at mbuf.h:1006
>#8  0xffffffff806d97ef in ip_output (m=0xffffff010bb45c00, opt=Variable
>"opt" is not available.
>)
>     at /usr/src/sys/netinet/ip_output.c:483
>#9  0xffffffff8073ef13 in tcp_output (tp=0xffffff000a9eb370)
>     at /usr/src/sys/netinet/tcp_output.c:1190
>#10 0xffffffff8073a42d in tcp_do_segment (m=0xffffff000a4cd800,
>     th=0xffffff000a4df824, so=0xffffff000a9037f8, tp=0xffffff000a9eb370,
>     drop_hdrlen=52, tlen=0, iptos=0 '\0', ti_locked=2)
>     at /usr/src/sys/netinet/tcp_input.c:1484
>#11 0xffffffff8073cf7b in tcp_input (m=0xffffff000a4cd800, off0=Variable
>"off0" is not available.
>)
>     at /usr/src/sys/netinet/tcp_input.c:1029
>#12 0xffffffff806d7660 in ip_input (m=0xffffff000a4cd800)
>     at /usr/src/sys/netinet/ip_input.c:793
>#13 0xffffffff8067bd3e in netisr_dispatch_src (proto=1, source=Variable
>"source" is not available.
>)
>     at /usr/src/sys/net/netisr.c:917
>#14 0xffffffff806720fd in ether_demux (ifp=0xffffff0004fd4000,
>     m=0xffffff000a4cd800) at /usr/src/sys/net/if_ethersubr.c:901
>#15 0xffffffff806724c7 in ether_input (ifp=0xffffff0004fd4000,
>     m=0xffffff000a4cd800) at /usr/src/sys/net/if_ethersubr.c:760
>#16 0xffffffff8067201f in ether_demux (ifp=0xffffff0002686800,
>     m=0xffffff000a4cd800) at /usr/src/sys/net/if_ethersubr.c:810
>#17 0xffffffff806724c7 in ether_input (ifp=0xffffff0002686800,
>     m=0xffffff000a4cd800) at /usr/src/sys/net/if_ethersubr.c:760
>#18 0xffffffff8033a00b in em_rxeof (rxr=0xffffff00026f7400, count=100,
>     done=0x0) at /usr/src/sys/dev/e1000/if_em.c:4196
>#19 0xffffffff8033aab8 in em_handle_que (context=Variable
"context" is
>not available.
>)
>     at /usr/src/sys/dev/e1000/if_em.c:1451
>#20 0xffffffff805ff704 in taskqueue_run (queue=0xffffff0002727b80)
>     at /usr/src/sys/kern/subr_taskqueue.c:239
>#21 0xffffffff805ff976 in taskqueue_thread_loop (arg=Variable
"arg" is
>not available.
>)
>     at /usr/src/sys/kern/subr_taskqueue.c:360
>#22 0xffffffff805985a8 in fork_exit (
>     callout=0xffffffff805ff930 <taskqueue_thread_loop>,
>     arg=0xffffff80003c1740, frame=0xffffff80000e6c80)
>     at /usr/src/sys/kern/kern_fork.c:844
>#23 0xffffffff808ba23e in fork_trampoline ()
>     at /usr/src/sys/amd64/amd64/exception.S:566
>#24 0x0000000000000000 in ?? ()
>#25 0x0000000000000000 in ?? ()
>#26 0x0000000000000000 in ?? ()
>#27 0x0000000000000000 in ?? ()
>#28 0x0000000000000000 in ?? ()
>#29 0x0000000000000000 in ?? ()
>#30 0x0000000000000000 in ?? ()
>#31 0x0000000000000000 in ?? ()
>#32 0x0000000000000000 in ?? ()
>#33 0x0000000000000000 in ?? ()
>#34 0x0000000000000000 in ?? ()
>#35 0x0000000000000000 in ?? ()
>#36 0x0000000000000000 in ?? ()
>#37 0x0000000000000000 in ?? ()
>#38 0x0000000000000000 in ?? ()
>#39 0x0000000000000000 in ?? ()
>#40 0x0000000000000000 in ?? ()
>#41 0x0000000000000000 in ?? ()
>#42 0x0000000000000000 in ?? ()
>#43 0x0000000000000000 in ?? ()
>#44 0x0000000000000000 in ?? ()
>#45 0x0000000000000000 in ?? ()
>#46 0x0000000000000000 in ?? ()
>#47 0x0000000000000000 in ?? ()
>#48 0x00000000010d1000 in ?? ()
>#49 0x0000000000000000 in ?? ()
>#50 0x0000000000000000 in ?? ()
>#51 0xffffffff80cb0fa0 in sleepq_chains ()
>#52 0xffffff00025087c0 in ?? ()
>#53 0xffffff80000e6b20 in ?? ()
>#54 0xffffff80000e6ad8 in ?? ()
>#55 0xffffff00026877c0 in ?? ()
>#56 0xffffffff805e64fa in sched_switch (td=0xffffff80003c1740,
>     newtd=0xffffffff805ff930, flags=Variable "flags" is not
available.
>) at /usr/src/sys/kern/sched_ule.c:1844
>Previous frame inner to this frame (corrupt stack?)
>_______________________________________________
>freebsd-stable@freebsd.org mailing list
>http://lists.freebsd.org/mailman/listinfo/freebsd-stable
>To unsubscribe, send any mail to
"freebsd-stable-unsubscribe@freebsd.org"
--------------------------------------------------------------------
Mike Tancsa,                                      tel +1 519 651 3400
Sentex Communications,                            mike@sentex.net
Providing Internet since 1994                    www.sentex.net
Cambridge, Ontario Canada                         www.sentex.net/mike

Pyun YongHyeon

2010-Aug-30 00:57 UTC

head link

Crashes on X7SPE-HF with em

On Sat, Aug 28, 2010 at 04:19:07PM +0200, Philipp Wuensche
wrote:> Philipp Wuensche wrote:
> > 
> > It just now started running the kernel without IPSEC and ALTQ.
> 
> Here we go again, this time it crashed with IPSEC and ALTQ disabled,
> crashdump looks different this time though.
> 
> GNU gdb 6.1.1 [FreeBSD]
> Copyright 2004 Free Software Foundation, Inc.
> GDB is free software, covered by the GNU General Public License, and you
are
> welcome to change it and/or distribute copies of it under certain
> conditions.
> Type "show copying" to see the conditions.
> There is absolutely no warranty for GDB.  Type "show warranty"
for details.
> This GDB was configured as "amd64-marcel-freebsd"...
> 
> Unread portion of the kernel message buffer:
> 
> 
> Fatal trap 12: page fault while in kernel mode
> cpuid = 0; apic id = 00
> fault virtual address	= 0xffff80400bc58038
> fault code		= supervisor read data, page not present
> instruction pointer	= 0x20:0xffffffff808a41ae
> stack pointer	        = 0x28:0xffffff80000e69a0
> frame pointer	        = 0x28:0xffffff80000e69b0
> code segment		= base 0x0, limit 0xfffff, type 0x1b
> 			= DPL 0, pres 1, long 1, def32 0, gran 1
> processor eflags	= interrupt enabled, resume, IOPL = 0
> current process		= 0 (em1 taskq)
> trap number		= 12
> panic: page fault
> cpuid = 0
> Uptime: 23h30m3s
> Physical memory: 4079 MB
> Dumping 1907 MB: 1892 1876em1: Watchdog timeout -- resetting
>  1860 1844 1828 1812 1796 1780 1764 1748 1732 1716 1700 1684 1668 1652
> 1636 1620 1604 1588 1572 1556 1540 1524 1508 1492 1476 1460 1444 1428
> 1412 1396 1380 1364 1348 1332 1316 1300 1284 1268 1252 1236 1220 1204
> 1188 1172 1156 1140 1124 1108 1092 1076 1060 1044 1028 1012 996 980 964
> 948 932 916 900 884 868 852 836 820 804 788 772 756 740 724 708 692 676
> 660 644 628 612 596 580 564 548 532 516 500 484 468 452 436 420 404 388
> 372 356 340 324 308 292 276 260 244 228 212 196 180 164 148 132 116 100
> 84 68 52 36 20 4
> 
> Reading symbols from /boot/kernel/zfs.ko...Reading symbols from
> /boot/kernel/zfs.ko.symbols...done.
> done.
> Loaded symbols for /boot/kernel/zfs.ko
> Reading symbols from /boot/kernel/opensolaris.ko...Reading symbols from
> /boot/kernel/opensolaris.ko.symbols...done.
> done.
> Loaded symbols for /boot/kernel/opensolaris.ko
> Reading symbols from /boot/kernel/geom_stripe.ko...Reading symbols from
> /boot/kernel/geom_stripe.ko.symbols...done.
> done.
> Loaded symbols for /boot/kernel/geom_stripe.ko
> Reading symbols from /boot/kernel/coretemp.ko...Reading symbols from
> /boot/kernel/coretemp.ko.symbols...done.
> done.
> Loaded symbols for /boot/kernel/coretemp.ko
> Reading symbols from /boot/kernel/ahci.ko...Reading symbols from
> /boot/kernel/ahci.ko.symbols...done.
> done.
> Loaded symbols for /boot/kernel/ahci.ko
> Reading symbols from /boot/kernel/ipmi.ko...Reading symbols from
> /boot/kernel/ipmi.ko.symbols...done.
> done.
> Loaded symbols for /boot/kernel/ipmi.ko
> Reading symbols from /boot/kernel/smbus.ko...Reading symbols from
> /boot/kernel/smbus.ko.symbols...done.
> done.
> Loaded symbols for /boot/kernel/smbus.ko
> Reading symbols from /boot/kernel/pflog.ko...Reading symbols from
> /boot/kernel/pflog.ko.symbols...done.
> done.
> Loaded symbols for /boot/kernel/pflog.ko
> Reading symbols from /boot/kernel/pf.ko...Reading symbols from
> /boot/kernel/pf.ko.symbols...done.
> done.
> Loaded symbols for /boot/kernel/pf.ko
> #0  doadump () at pcpu.h:224
> 224		__asm("movq %%gs:0,%0" : "=r" (td));
> (kgdb) list *0xffffffff808a41ae
> 0xffffffff808a41ae is in pmap_kextract
> (/usr/src/sys/amd64/amd64/pmap.c:1172).
> 1167		vm_paddr_t pa;
> 1168	
> 1169		if (va >= DMAP_MIN_ADDRESS && va < DMAP_MAX_ADDRESS) {
> 1170			pa = DMAP_TO_PHYS(va);
> 1171		} else {
> 1172			pde = *vtopde(va);
> 1173			if (pde & PG_PS) {
> 1174				pa = (pde & PG_PS_FRAME) | (va & PDRMASK);
> 1175			} else {
> 1176				/*
> (kgdb) backtrace
> #0  doadump () at pcpu.h:224
> #1  0xffffffff805b2b5e in boot (howto=260)
>     at /usr/src/sys/kern/kern_shutdown.c:416
> #2  0xffffffff805b2f6c in panic (fmt=0x0)
>     at /usr/src/sys/kern/kern_shutdown.c:590
> #3  0xffffffff808ac70d in trap_fatal (frame=0xffffffff80c5cc60,
> eva=Variable "eva" is not available.
> )
>     at /usr/src/sys/amd64/amd64/trap.c:777
> #4  0xffffffff808acacf in trap_pfault (frame=0xffffff80000e68f0,
usermode=0)
>     at /usr/src/sys/amd64/amd64/trap.c:693
> #5  0xffffffff808ad2e2 in trap (frame=0xffffff80000e68f0)
>     at /usr/src/sys/amd64/amd64/trap.c:451
> #6  0xffffffff808923b4 in calltrap ()
>     at /usr/src/sys/amd64/amd64/exception.S:224
> #7  0xffffffff808a41ae in pmap_kextract (va=51771551252551)
>     at /usr/src/sys/amd64/amd64/pmap.c:1172
> #8  0xffffffff80890f83 in bus_dmamap_load_mbuf_sg (dmat=0xffffff0002727c00,
>     map=0xffffffff80c99d40, m0=Variable "m0" is not available.
> )
>     at /usr/src/sys/amd64/amd64/busdma_machdep.c:659
> #9  0xffffffff8032f8fc in em_refresh_mbufs (rxr=0xffffff0002712600,
> limit=975)
>     at /usr/src/sys/dev/e1000/if_em.c:3691
> #10 0xffffffff8032ff3c in em_rxeof (rxr=0xffffff0002712600, count=100,
>     done=0x0) at /usr/src/sys/dev/e1000/if_em.c:4210
> #11 0xffffffff80330788 in em_handle_que (context=Variable
"context" is
> not available.
> )
>     at /usr/src/sys/dev/e1000/if_em.c:1451
> #12 0xffffffff805efc94 in taskqueue_run (queue=0xffffff0002727b80)
>     at /usr/src/sys/kern/subr_taskqueue.c:239
> #13 0xffffffff805eff06 in taskqueue_thread_loop (arg=Variable
"arg" is
> not available.
> )
>     at /usr/src/sys/kern/subr_taskqueue.c:360
> #14 0xffffffff80589998 in fork_exit (
>     callout=0xffffffff805efec0 <taskqueue_thread_loop>,
>     arg=0xffffff80003c2740, frame=0xffffff80000e6c80)
>     at /usr/src/sys/kern/kern_fork.c:844
> #15 0xffffffff8089288e in fork_trampoline ()
>     at /usr/src/sys/amd64/amd64/exception.S:566
> #16 0x0000000000000000 in ?? ()
> #17 0x0000000000000000 in ?? ()
> #18 0x0000000000000000 in ?? ()
> #19 0x0000000000000000 in ?? ()
> #20 0x0000000000000000 in ?? ()
> #21 0x0000000000000000 in ?? ()
> #22 0x0000000000000000 in ?? ()
> #23 0x0000000000000000 in ?? ()
> #24 0x0000000000000000 in ?? ()
> #25 0x0000000000000000 in ?? ()
> #26 0x0000000000000000 in ?? ()
> #27 0x0000000000000000 in ?? ()
> #28 0x0000000000000000 in ?? ()
> #29 0x0000000000000000 in ?? ()
> #30 0x0000000000000000 in ?? ()
> #31 0x0000000000000000 in ?? ()
> #32 0x0000000000000000 in ?? ()
> #33 0x0000000000000000 in ?? ()
> #34 0x0000000000000000 in ?? ()
> #35 0x0000000000000000 in ?? ()
> #36 0x0000000000000000 in ?? ()
> #37 0x0000000000000000 in ?? ()
> #38 0x0000000000000000 in ?? ()
> #39 0x0000000000000000 in ?? ()
> #40 0x000000000109b000 in ?? ()
> #41 0x0000000000000000 in ?? ()
> #42 0x0000000000000000 in ?? ()
> #43 0xffffffff80c823e0 in sleepq_chains ()
> #44 0xffffff00025087c0 in ?? ()
> #45 0xffffff80000e6b20 in ?? ()
> #46 0xffffff80000e6ad8 in ?? ()
> #47 0xffffff000267f7c0 in ?? ()
> #48 0xffffffff805d6a8a in sched_switch (td=0xffffff80003c2740,
>     newtd=0xffffffff805efec0, flags=Variable "flags" is not
available.
> ) at /usr/src/sys/kern/sched_ule.c:1844
> Previous frame inner to this frame (corrupt stack?)
Ok, thanks for the backtrace. This one indicates suspicious code
path in em(4). Would you try attached patch and let me know whether
it makes any difference on your box?
Note, the patch was not extensively tested so make sure to test
first before applying the patch to production box. The patch
generated against HEAD but I guess it could be applied to stable/8.
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Jeremy Chadwick

2010-Aug-30 11:11 UTC

head link

Crashes on X7SPE-HF with em

Bcc: 
Subject: Re: igb related(?) panics on 7.3-STABLE
Reply-To: 
In-Reply-To: <20100830094631.GD12467@core.byshenk.net>

On Mon, Aug 30, 2010 at 11:46:31AM +0200, Greg Byshenk
wrote:> On Sun, Aug 29, 2010 at 08:16:59PM +0200, Greg Byshenk wrote:
> 
> > I've begun seeing problems on a machine running
FreeBSD-7.3-STABLE, 64-bit,
> > with two igb nics in use.  Previously the machine was fine, running
earlier
> > versions of 7-STABLE, although the load on the network has increased
due
> > to additional machines being added to the network (the machine
functions
> > as a fileserver, serving files to compute machines via NFS(v3)).
> > 
> > Any advice is much appreciated. System info is below.
> 
> 
> Followup with more information. The machine just panic'ed again, with 
> a lot of load on the network.
> 
> Output from the 'systat' that was running at the time:
> 
>        3 users    Load 54.47 42.35 24.25                  Aug 30 11:17
>     
>    Mem:KB    REAL            VIRTUAL                       VN PAGER   SWAP
PAGER
>            Tot   Share      Tot    Share    Free           in   out     in 
out
>    Act   46232    5504   868140    10548  943324  count
>    All  456484    7852 1074772k    27740          pages
>    Proc:                                                           
Interrupts
>      r   p   d   s   w   Csw  Trp  Sys  Int  Sof  Flt        cow   54220
total
>              1 170      392k    8  278  22k  195    1        zfod       
sio0 irq4
>                                                              ozfod      
fdc0 irq6
>    70.4%Sys   3.1%Intr  0.0%User  0.0%Nice 26.5%Idle        %ozfod    27
twa0 uhci0
>    |    |    |    |    |    |    |    |    |    |    |       daefr  2001
cpu0: time
>    ===================================++                     prcfr      
igb0 256
>                                          9938 dtbuf     1247 totfr      
igb0 257
>    Namei     Name-cache   Dir-cache    100000 desvn          react      
igb0 258
>       Calls    hits   %    hits   %     34443 numvn        1 pdwak      
igb0 259
>                                         24996 frevn   112852 pdpgs      
igb0 262
>                                                              intrn      
igb0 263
>    Disks   da0   da1 pass0 pass1                     2570672 wire       
igb0 264
>    KB/t   0.00 12.23  0.00  0.00                       46760 act        
igb0 265
>    tps       0    26     0     0                    14706896 inact 19449
igb1 266
>    MB/s   0.00  0.31  0.00  0.00    0                 769796  26585
>              0    21     0     0                      173528
> 
> 
> -greg
>  
>  
>  
> > Machine:
> > ======> > 
> > FreeBSD server.example.com 7.3-STABLE FreeBSD 7.3-STABLE #36: Wed Aug
25 11:01:07 CEST 2010     root@server.example.com:/usr/obj/usr/src/sys/KERNEL
amd64
> > 
> > Kernel was csup'd earlier in the day on 25 August, immediately
prior to
> > the build.
> > 
> > 
> > Panic:
> > =====> > 
> > Fatal trap 9: general protection fault while in kernel mode
> > cpuid = 2; apic id = 02
> > instruction pointer     = 0x8:0xffffffff8052f40c
> > stack pointer           = 0x10:0xffffff82056819d0
> > frame pointer           = 0x10:0xffffff82056819f0
> > code segment            = base 0x0, limit 0xfffff, type 0x1b
> >                         = DPL 0, pres 1, long 1, def32 0, gran 1
> > processor eflags        = interrupt enabled, resume, IOPL = 0
> > current process         = 65 (igb1 que)
> > trap number             = 9
> > panic: general protection fault
> > cpuid = 2
> > KDB: stack backtrace:
> > db_trace_self_wrapper() at db_trace_self_wrapper+0x2a
> > panic() at panic+0x182
> > trap_fatal() at trap_fatal+0x294
> > trap() at trap+0x106
> > calltrap() at calltrap+0x8
> > --- trap 0x9, rip = 0xffffffff8052f40c, rsp = 0xffffff82056819d0, rbp
= 0xffffff82056819f0 --- m_tag_delete_chain() at m_tag_delete_chain+0x1c
> > uma_zfree_arg() at uma_zfree_arg+0x41
> > m_freem() at m_freem+0x54
> > ether_demux() at ether_demux+0x85
> > ether_input() at ether_input+0x1bb
> > igb_rxeof() at igb_rxeof+0x29d
> > igb_handle_que() at igb_handle_que+0x9a
> > taskqueue_run() at taskqueue_run+0xac
> > taskqueue_thread_loop() at taskqueue_thread_loop+0x46
> > fork_exit() at fork_exit+0x122
> > fork_trampoline() at fork_trampoline+0xe
> > --- trap 0, rip = 0, rsp = 0xffffff8205681d30, rbp = 0 ---
> > Uptime: 11h57m6s
> > Physical memory: 18411 MB
> > Dumping 3770 MB:
> > 
> > Fatal trap 12: page fault while in kernel mode
> > cpuid = 0; apic id = 00
> > fault virtual address   = 0x8000000000
> > fault code              = supervisor write data, page not present
> > instruction pointer     = 0x8:0xffffffff80188b5f
> > stack pointer           = 0x10:0xffffff82056811f0
> > frame pointer           = 0x10:0xffffff82056812f0
> > code segment            = base 0x0, limit 0xfffff, type 0x1b
> >                         = DPL 0, pres 1, long 1, def32 0, gran 1
> > processor eflags        = interrupt enabled, resume, IOPL = 0
> > current process         = 65 (igb1 que)
> > trap number             = 12
> > 
> > 
> > pciconf:
> > ======> > 
> > igb0@pci0:10:0:0:       class=0x020000 card=0x10c915d9 chip=0x10c98086
rev=0x01 hdr=0x00
> >     vendor     = 'Intel Corporation'
> >     class      = network
> >     subclass   = ethernet
> > igb1@pci0:10:0:1:       class=0x020000 card=0x10c915d9 chip=0x10c98086
rev=0x01 hdr=0x00
> >     vendor     = 'Intel Corporation'
> >     class      = network
> >     subclass   = ethernet
> > 
> > 
> > dmesg:
> > ====> > 
> > igb0: <Intel(R) PRO/1000 Network Connection version - 1.9.5>
port 0xe880-0xe89f mem 0xfbe60000-0xfbe
> > 7ffff,0xfbe40000-0xfbe5ffff,0xfbeb8000-0xfbebbfff irq 16 at device 0.0
on pci10
> > igb0: Using MSIX interrupts with 10 vectors
> > igb0: [ITHREAD]
> > igb0: [ITHREAD]
> > igb0: [ITHREAD]
> > igb0: [ITHREAD]
> > igb0: [ITHREAD]
> > igb0: [ITHREAD]
> > igb0: [ITHREAD]
> > igb0: [ITHREAD]
> > igb0: [ITHREAD]
> > igb0: [ITHREAD]
> > igb0: Ethernet address: 00:30:48:ca:cd:72
> > igb1: <Intel(R) PRO/1000 Network Connection version - 1.9.5>
port 0xec00-0xec1f mem 0xfbee0000-0xfbe
> > fffff,0xfbec0000-0xfbedffff,0xfbebc000-0xfbebffff irq 17 at device 0.1
on pci10
> > igb1: Using MSIX interrupts with 10 vectors
> > igb1: [ITHREAD]
> > igb1: [ITHREAD]
> > igb1: [ITHREAD]
> > igb1: [ITHREAD]
> > igb1: [ITHREAD]
> > igb1: [ITHREAD]
> > igb1: [ITHREAD]
> > igb1: [ITHREAD]
> > igb1: [ITHREAD]
> > igb1: [ITHREAD]
> > igb1: Ethernet address: 00:30:48:ca:cd:73
Adding Jack Vogel of Intel and Yong-Hyeon PYUN to the mix...

I don't know if this is possible for you to do, but do you see the same
problem when running 8.1-STABLE?  I know there has been a lot of
positive work on igb(4) in RELENG_8, but not too many of the fixes and
improvements are backported to RELENG_7.

http://www.freebsd.org/cgi/cvsweb.cgi/src/sys/dev/e1000/if_igb.c

Be sure to check out Revision 1.54 there (which is for HEAD/CURRENT,
but I'm not sure if it's been backported/incorporated in some other
way).

Otherwise, as a test/workaround you might try disabling MSI-X support
entirely to see if there's any improvement.  This could degrade system
performance a bit (under heavy interrupt load).  In /boot/loader.conf,
set hw.pci.enable_msix="0" and reboot.  If there's no improvement,
be
sure to remove this.

-- 
| Jeremy Chadwick                                   jdc@parodius.com |
| Parodius Networking                       http://www.parodius.com/ |
| UNIX Systems Administrator                  Mountain View, CA, USA |
| Making life hard for others since 1977.              PGP: 4BD6C0CB |

Philipp Wuensche

2010-Sep-17 09:36 UTC

head link

Crashes on X7SPE-HF with em

In the end this turned out to be faulty hardware, at least the mainboard
died a tragic death and has to be replaced now.

Thanks for the help anyway and sorry for the noise!

Greetings,
philipp

Philipp Wuensche wrote:> Hi,
> 
> I'm having trouble with a system on a Supermicro X7SPE-HF, it crashes
> about once a day. I haven't found a way to trigger this yet.
> 
> The system has a bunch of VLANs on em1, it does routing between them.
> 
> Currently its running 8-STABLE but it happend with 8.1-RELEASE too.
> 
> greetings,
> Philipp
> 
> # kgdb kernel.debug /var/crash/vmcore.0
> GNU gdb 6.1.1 [FreeBSD]
> Copyright 2004 Free Software Foundation, Inc.
> GDB is free software, covered by the GNU General Public License, and you
are
> welcome to change it and/or distribute copies of it under certain
> conditions.
> Type "show copying" to see the conditions.
> There is absolutely no warranty for GDB.  Type "show warranty"
for details.
> This GDB was configured as "amd64-marcel-freebsd"...
> 
> Unread portion of the kernel message buffer:
> 
> 
> Fatal trap 9: general protection fault while in kernel mode
> cpuid = 0; apic id = 00
> instruction pointer	= 0x20:0xffffffff8061f5a8
> stack pointer	        = 0x28:0xffffff80000e64d0
> frame pointer	        = 0x28:0xffffff80000e64e0
> code segment		= base 0x0, limit 0xfffff, type 0x1b
> 			= DPL 0, pres 1, long 1, def32 0, gran 1
> processor eflags	= interrupt enabled, resume, IOPL = 0
> current process		= 0 (em1 taskq)
> trap number		= 9
> panic: general protection fault
> cpuid = 0
> Uptime: 13h24m39s
> Physical memory: 4079 MB
> Dumping 1349 MB: 1334 1318 1302 1286 1270 1254 1238 1222 1206 1190 1174
> 1158 1142 1126 1110 1094 1078 1062 1046 1030 1014 998 982 966 950 934
> 918 902 886 870 854 838 822 806 790 774 758 742 726 710 694 678 662 646
> 630 614 598 582 566 550 534 518 502 486 470 454 438 422 406 390 374 358
> 342 326 310 294 278 262 246 230 214 198 182 166 150 134 118 102 86 70 54
> 38 22 6
> 
> Reading symbols from /boot/kernel/zfs.ko...Reading symbols from
> /boot/kernel/zfs.ko.symbols...done.
> done.
> Loaded symbols for /boot/kernel/zfs.ko
> Reading symbols from /boot/kernel/opensolaris.ko...Reading symbols from
> /boot/kernel/opensolaris.ko.symbols...done.
> done.
> Loaded symbols for /boot/kernel/opensolaris.ko
> Reading symbols from /boot/kernel/coretemp.ko...Reading symbols from
> /boot/kernel/coretemp.ko.symbols...done.
> done.
> Loaded symbols for /boot/kernel/coretemp.ko
> Reading symbols from /boot/kernel/ahci.ko...Reading symbols from
> /boot/kernel/ahci.ko.symbols...done.
> done.
> Loaded symbols for /boot/kernel/ahci.ko
> Reading symbols from /boot/kernel/ipmi.ko...Reading symbols from
> /boot/kernel/ipmi.ko.symbols...done.
> done.
> Loaded symbols for /boot/kernel/ipmi.ko
> Reading symbols from /boot/kernel/smbus.ko...Reading symbols from
> /boot/kernel/smbus.ko.symbols...done.
> done.
> Loaded symbols for /boot/kernel/smbus.ko
> Reading symbols from /boot/kernel/pflog.ko...Reading symbols from
> /boot/kernel/pflog.ko.symbols...done.
> done.
> Loaded symbols for /boot/kernel/pflog.ko
> Reading symbols from /boot/kernel/pf.ko...Reading symbols from
> /boot/kernel/pf.ko.symbols...done.
> done.
> Loaded symbols for /boot/kernel/pf.ko
> #0  doadump () at pcpu.h:224
> 224		__asm("movq %%gs:0,%0" : "=r" (td));
> (kgdb) list *0xffffffff8061f5a8
> 0xffffffff8061f5a8 is in m_tag_locate (/usr/src/sys/kern/uipc_mbuf2.c:389).
> 384		if (t == NULL)
> 385			p = SLIST_FIRST(&m->m_pkthdr.tags);
> 386		else
> 387			p = SLIST_NEXT(t, m_tag_link);
> 388		while (p != NULL) {
> 389			if (p->m_tag_cookie == cookie && p->m_tag_id == type)
> 390				return p;
> 391			p = SLIST_NEXT(p, m_tag_link);
> 392		}
> 393		return NULL;
> (kgdb) backtrace
> #0  doadump () at pcpu.h:224
> #1  0xffffffff805c25ce in boot (howto=260)
>     at /usr/src/sys/kern/kern_shutdown.c:416
> #2  0xffffffff805c29dc in panic (fmt=0x0)
>     at /usr/src/sys/kern/kern_shutdown.c:590
> #3  0xffffffff808d40bd in trap_fatal (frame=0xffffffff80c8af60,
> eva=Variable "eva" is not available.
> )
>     at /usr/src/sys/amd64/amd64/trap.c:777
> #4  0xffffffff808d4a8b in trap (frame=0xffffff80000e6420)
>     at /usr/src/sys/amd64/amd64/trap.c:588
> #5  0xffffffff808b9d64 in calltrap ()
>     at /usr/src/sys/amd64/amd64/exception.S:224
> #6  0xffffffff8061f5a8 in m_tag_locate (m=0xffffff010bb45c00, cookie=0,
>     type=6, t=Variable "t" is not available.
> ) at /usr/src/sys/kern/uipc_mbuf2.c:388
> #7  0xffffffff806d7c56 in ip_ipsec_output (m=0xffffff80000e6598,
>     inp=0xffffff010be43150, flags=0xffffff80000e6594,
>     error=0xffffff80000e65a8, ifp=Variable "ifp" is not
available.
> ) at mbuf.h:1006
> #8  0xffffffff806d97ef in ip_output (m=0xffffff010bb45c00, opt=Variable
> "opt" is not available.
> )
>     at /usr/src/sys/netinet/ip_output.c:483
> #9  0xffffffff8073ef13 in tcp_output (tp=0xffffff000a9eb370)
>     at /usr/src/sys/netinet/tcp_output.c:1190
> #10 0xffffffff8073a42d in tcp_do_segment (m=0xffffff000a4cd800,
>     th=0xffffff000a4df824, so=0xffffff000a9037f8, tp=0xffffff000a9eb370,
>     drop_hdrlen=52, tlen=0, iptos=0 '\0', ti_locked=2)
>     at /usr/src/sys/netinet/tcp_input.c:1484
> #11 0xffffffff8073cf7b in tcp_input (m=0xffffff000a4cd800, off0=Variable
> "off0" is not available.
> )
>     at /usr/src/sys/netinet/tcp_input.c:1029
> #12 0xffffffff806d7660 in ip_input (m=0xffffff000a4cd800)
>     at /usr/src/sys/netinet/ip_input.c:793
> #13 0xffffffff8067bd3e in netisr_dispatch_src (proto=1, source=Variable
> "source" is not available.
> )
>     at /usr/src/sys/net/netisr.c:917
> #14 0xffffffff806720fd in ether_demux (ifp=0xffffff0004fd4000,
>     m=0xffffff000a4cd800) at /usr/src/sys/net/if_ethersubr.c:901
> #15 0xffffffff806724c7 in ether_input (ifp=0xffffff0004fd4000,
>     m=0xffffff000a4cd800) at /usr/src/sys/net/if_ethersubr.c:760
> #16 0xffffffff8067201f in ether_demux (ifp=0xffffff0002686800,
>     m=0xffffff000a4cd800) at /usr/src/sys/net/if_ethersubr.c:810
> #17 0xffffffff806724c7 in ether_input (ifp=0xffffff0002686800,
>     m=0xffffff000a4cd800) at /usr/src/sys/net/if_ethersubr.c:760
> #18 0xffffffff8033a00b in em_rxeof (rxr=0xffffff00026f7400, count=100,
>     done=0x0) at /usr/src/sys/dev/e1000/if_em.c:4196
> #19 0xffffffff8033aab8 in em_handle_que (context=Variable
"context" is
> not available.
> )
>     at /usr/src/sys/dev/e1000/if_em.c:1451
> #20 0xffffffff805ff704 in taskqueue_run (queue=0xffffff0002727b80)
>     at /usr/src/sys/kern/subr_taskqueue.c:239
> #21 0xffffffff805ff976 in taskqueue_thread_loop (arg=Variable
"arg" is
> not available.
> )
>     at /usr/src/sys/kern/subr_taskqueue.c:360
> #22 0xffffffff805985a8 in fork_exit (
>     callout=0xffffffff805ff930 <taskqueue_thread_loop>,
>     arg=0xffffff80003c1740, frame=0xffffff80000e6c80)
>     at /usr/src/sys/kern/kern_fork.c:844
> #23 0xffffffff808ba23e in fork_trampoline ()
>     at /usr/src/sys/amd64/amd64/exception.S:566
> #24 0x0000000000000000 in ?? ()
> #25 0x0000000000000000 in ?? ()
> #26 0x0000000000000000 in ?? ()
> #27 0x0000000000000000 in ?? ()
> #28 0x0000000000000000 in ?? ()
> #29 0x0000000000000000 in ?? ()
> #30 0x0000000000000000 in ?? ()
> #31 0x0000000000000000 in ?? ()
> #32 0x0000000000000000 in ?? ()
> #33 0x0000000000000000 in ?? ()
> #34 0x0000000000000000 in ?? ()
> #35 0x0000000000000000 in ?? ()
> #36 0x0000000000000000 in ?? ()
> #37 0x0000000000000000 in ?? ()
> #38 0x0000000000000000 in ?? ()
> #39 0x0000000000000000 in ?? ()
> #40 0x0000000000000000 in ?? ()
> #41 0x0000000000000000 in ?? ()
> #42 0x0000000000000000 in ?? ()
> #43 0x0000000000000000 in ?? ()
> #44 0x0000000000000000 in ?? ()
> #45 0x0000000000000000 in ?? ()
> #46 0x0000000000000000 in ?? ()
> #47 0x0000000000000000 in ?? ()
> #48 0x00000000010d1000 in ?? ()
> #49 0x0000000000000000 in ?? ()
> #50 0x0000000000000000 in ?? ()
> #51 0xffffffff80cb0fa0 in sleepq_chains ()
> #52 0xffffff00025087c0 in ?? ()
> #53 0xffffff80000e6b20 in ?? ()
> #54 0xffffff80000e6ad8 in ?? ()
> #55 0xffffff00026877c0 in ?? ()
> #56 0xffffffff805e64fa in sched_switch (td=0xffffff80003c1740,
>     newtd=0xffffffff805ff930, flags=Variable "flags" is not
available.
> ) at /usr/src/sys/kern/sched_ule.c:1844
> Previous frame inner to this frame (corrupt stack?)

freebsd stable - Aug 2010 - Crashes on X7SPE-HF with em

Crashes on X7SPE-HF with em

Crashes on X7SPE-HF with em

Crashes on X7SPE-HF with em

Crashes on X7SPE-HF with em

Crashes on X7SPE-HF with em