[Bug 222842] adding interface to bridge panics kernel
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bugzilla-noreply at freebsd.org
Sat Oct 7 08:31:09 UTC 2017
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=222842
Bug ID: 222842
Summary: adding interface to bridge panics kernel
Product: Base System
Version: CURRENT
Hardware: arm64
OS: Any
Status: New
Severity: Affects Some People
Priority: ---
Component: kern
Assignee: freebsd-bugs at FreeBSD.org
Reporter: heinz at project-fifo.net
adding an interface to a bridge panics the kernel (using 12-current):
root at mystery-box:~ # uname -a
FreeBSD mystery-box 12.0-CURRENT FreeBSD 12.0-CURRENT #0 r324306: Fri Oct 6
01:50:52 UTC 2017
root at releng3.nyi.freebsd.org:/usr/obj/arm64.aarch64/usr/src/sys/GENERIC arm64
root at mystery-box:~ # ifconfig
em0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 1500
options=85259b<RXCSUM,TXCSUM,VLAN_MTU,VLAN_HWTAGGING,VLAN_HWCSUM,TSO4,LRO,WOL_MAGIC,VLAN_HWFILTER,VLAN_HWTSO>
ether 68:05:ca:61:85:04
inet6 fe80::6a05:caff:fe61:8504%em0 prefixlen 64 scopeid 0x1
inet 192.168.1.23 netmask 0xffffff00 broadcast 192.168.1.255
media: Ethernet autoselect (1000baseT <full-duplex>)
status: active
nd6 options=23<PERFORMNUD,ACCEPT_RTADV,AUTO_LINKLOCAL>
lo0: flags=8049<UP,LOOPBACK,RUNNING,MULTICAST> metric 0 mtu 16384
options=600003<RXCSUM,TXCSUM,RXCSUM_IPV6,TXCSUM_IPV6>
inet6 ::1 prefixlen 128
inet6 fe80::1%lo0 prefixlen 64 scopeid 0x2
inet 127.0.0.1 netmask 0xff000000
groups: lo
nd6 options=21<PERFORMNUD,AUTO_LINKLOCAL>
bridge0: flags=8802<BROADCAST,SIMPLEX,MULTICAST> metric 0 mtu 1500
ether 02:24:38:47:e9:00
id 00:00:00:00:00:00 priority 32768 hellotime 2 fwddelay 15
maxage 20 holdcnt 6 proto rstp maxaddr 2000 timeout 1200
root id 00:00:00:00:00:00 priority 0 ifcost 0 port 0
groups: bridge
nd6 options=9<PERFORMNUD,IFDISABLED>
root at mystery-box:~ # ifconfig bridge0 addm em0
link state changed to down
Kernel page fault with the following non-sleepable locks held:
exclusive sleep mutex em0 (iflib ctx lock) r = 0 (0xfffffd00041c6d40) locked @
/usr/src/sys/net/iflib.c:3890
stack backtrace:
#0 0xffff00000036f91c at witness_debugger+0x64
#1 0xffff000000370c2c at witness_warn+0x3fc
#2 0xffff000000601d30 at data_abort+0xe0
#3 0xffff000000601b4c at do_el1h_sync+0xf8
#4 0xffff0000005ea074 at handle_el1h_sync+0x74
#5 0xffff000000411274 at _iflib_fl_refill+0x370
#6 0xffff000000411274 at _iflib_fl_refill+0x370
#7 0xffff00000040cf88 at iflib_init_locked+0x3a4
#8 0xffff000000411d24 at iflib_if_ioctl+0x698
#9 0xffff00005272dd1c at bridge_mutecaps+0x12c
#10 0xffff00005272a40c at bridge_ioctl_add+0x40c
#11 0xffff00005272bc9c at bridge_ioctl+0x174
#12 0xffff0000003f8640 at ifioctl+0x840
#13 0xffff000000375388 at kern_ioctl+0x358
#14 0xffff000000374fe0 at sys_ioctl+0x158
#15 0xffff000000602734 at do_el0_sync+0x890
#16 0xffff0000005ea1f4 at handle_el0_sync+0x74
x0: fffffd000486dd00
x1: fffffd00058a6000
x2: 1
x3: 0
x4: 0
x5: 0
x6: 0
x7: ffff00062413044c
x8: 10
x9: ffff0000005e7084
x10: 100000000
x11: ffff000000aa4bd8
x12: 1
x13: fffffd00041c6d40
x14: ffff000040689e80
x15: ffff0000008685c0
x16: efd392c2
x17: a8e596c
x18: ffff000624130410
x19: deadc0dedeadc0de
x20: fffffd00058a6000
x21: fffffd000486dd00
x22: 0
x23: 1
x24: 0
x25: fffffd003e3e0800
x26: 0
x27: ffff0000419ec000
x28: 0
x29: ffff000624130480
sp: ffff000624130410
lr: ffff000000411278
elr: ffff0000005e70e4
spsr: 80000345
far: deadc0dedeadc10e
esr: 96000004
timeout stopping cpus
panic: data abort in critical section or under mutex
cpuid = 47
time = 1507265417
KDB: stack backtrace:
db_trace_self() at db_trace_self_wrapper+0x28
pc = 0xffff0000005e8618 lr = 0xffff000000086afc
sp = 0xffff00062412fe30 fp = 0xffff000624130040
db_trace_self_wrapper() at vpanic+0x184
pc = 0xffff000000086afc lr = 0xffff000000311cd8
sp = 0xffff000624130050 fp = 0xffff0006241300d0
vpanic() at panic+0x44
pc = 0xffff000000311cd8 lr = 0xffff000000311d60
sp = 0xffff0006241300e0 fp = 0xffff000624130160
panic() at data_abort+0x250
pc = 0xffff000000311d60 lr = 0xffff000000601ea0
sp = 0xffff000624130170 fp = 0xffff000624130220
data_abort() at do_el1h_sync+0xf8
pc = 0xffff000000601ea0 lr = 0xffff000000601b4c
sp = 0xffff000624130230 fp = 0xffff000624130260
do_el1h_sync() at handle_el1h_sync+0x74
pc = 0xffff000000601b4c lr = 0xffff0000005ea074
sp = 0xffff000624130270 fp = 0xffff000624130380
handle_el1h_sync() at _iflib_fl_refill+0x370
pc = 0xffff0000005ea074 lr = 0xffff000000411274
sp = 0xffff000624130390 fp = 0xffff000624130480
_iflib_fl_refill() at _iflib_fl_refill+0x370
pc = 0xffff000000411274 lr = 0xffff000000411274
sp = 0xffff000624130490 fp = 0xffff000624130550
_iflib_fl_refill() at iflib_init_locked+0x3a4
pc = 0xffff000000411274 lr = 0xffff00000040cf88
sp = 0xffff000624130560 fp = 0xffff0006241305c0
iflib_init_locked() at iflib_if_ioctl+0x698
pc = 0xffff00000040cf88 lr = 0xffff000000411d24
sp = 0xffff0006241305d0 fp = 0xffff000624130620
iflib_if_ioctl() at bridge_mutecaps+0x12c
pc = 0xffff000000411d24 lr = 0xffff00005272dd1c
sp = 0xffff000624130630 fp = 0xffff0006241306b0
bridge_mutecaps() at bridge_ioctl_add+0x40c
pc = 0xffff00005272dd1c lr = 0xffff00005272a40c
sp = 0xffff0006241306c0 fp = 0xffff000624130700
bridge_ioctl_640
sp = 0xffff0006241307c0 fp = 0xffff000624130860
ifioctl() at kern_ioctl+0x358
pc = 0xffff0000003f8640 lr = 0xffff000000375388
sp = 0xffff000624130870 fp = 0xffff0006241308c0
kern_ioctl() at sys_ioctl+0x158
pc = 0xffff000000375388 lr = 0xffff000000374fe0
sp = 0xffff0006241308d0 fp = 0xffff0006241309a0
sys_ioctl() at do_el0_sync+0x890
pc = 0xffff000000374fe0 lr = 0xffff000000602734
sp = 0xffff0006241309b0 fp = 0xffff000624130a70
do_el0_sync() at handle_el0_sync+0x74
pc = 0xffff000000602734 lr = 0xffff0000005ea1f4
sp = 0xffff000624130a80 fp = 0xffff000624130b90
handle_el0_sync() at 0x38e60
pc = 0xffff0000005ea1f4 lr = 0x0000000000038e60
sp = 0xffff000624130ba0 fp = 0x0000ffffffffe2f0
KDB: enter: panic
[ thread pid 918 tid 101316 ]
Stopped at bounce_bus_dmamap_sync+0x60: ldr x19, [x19, #48]
db> timeout stopping cpus
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