[Bug 272666] FreeBSD arm64 Azure panic in add_route

[email protected]
Newsgroups gmane.os.freebsd.devel.arm
Message-ID <[email protected]/bugzilla/>
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=272666

            Bug ID: 272666
           Summary: FreeBSD arm64 Azure panic in add_route
           Product: Base System
           Version: CURRENT
          Hardware: Any
                OS: Any
            Status: New
          Severity: Affects Some People
          Priority: ---
         Component: arm
          Assignee: [email protected]
          Reporter: [email protected]

In the recent FreeBSD arm64 community preview image in Azure, during reboot, I
am seeing this panic sometime:

.
ELF ldconfig path: /lib /usr/lib /usr/lib/compat /usr/local/lib
/usr/local/lib/compat/pkg /usr/local/lib/compat/pkg
lo0: link state changed to UP
Kernel page fault with the following non-sleepable locks held:
exclusive rm rib head lock (rib head lock) r = 0 (0xffffa000012278e0) locked @
/usr/src/sys/net/route/route_ctl.c:797
stack backtrace:
#0 0xffff0000004d2af4 at witness_debugger+0x5c
#1 0xffff0000004d3cf8 at witness_warn+0x400
#2 0xffff0000007f7310 at data_abort+0xa0
#3 0xffff0000007d3014 at handle_el1h_sync+0x14
  x0: 0x0000000000000001
  x1: 0x0000000000000100
  x2: 0xffffa00001ae7000
  x3: 0xffff00004031af40 ($d.2 + 0x3efee96f)
  x4: 0x0000000000000100
  x5: 0x0000000000000000
  x6: 0x000000000000003f
  x7: 0x0000000000000000
  x8: 0xffff000132c76c40
  x9: 0x0000000000000000
 x10: 0x0000000000000008
 x11: 0x0000000000000000
 x12: 0x000000000000003e
 x13: 0xffffa00001ae70fc
 x14: 0x0000000000000000
 x15: 0x0000000000000001
 x16: 0x0000000000010000
 x17: 0x0000000000000005
 x18: 0xffff00012d2f7e60
 x19: 0xffff00012d2f8080
 x20: 0xffffa00001227800
 x21: 0x0000000000000000
 x22: 0xdeadc0dedeadc0de
 x23: 0xffffa000012278e0
 x24: 0xffffa00001227800
 x25: 0xffffa0000c93ba00
 x26: 0xffff000000960582 (digits + 0x12fbf)
 x27: 0xffffa0000c9338f0
 x28: 0x0000000000000000
 x29: 0xffff00012d2f7e60
  sp: 0xffff00012d2f7e60
  lr: 0xffff0000005bf63c (rib_notify + 0x50)
 elr: 0xffffa0000c93bb00
spsr: 0x0000000060400045
 far: 0xffffa0000c93bb00
 esr: 0x000000008600000e
panic: data abort in critical section or under mutex
cpuid = 3
time = 1690047394
KDB: stack backtrace:
db_trace_self() at db_trace_self
db_trace_self_wrapper() at db_trace_self_wrapper+0x30
vpanic() at vpanic+0x13c
panic() at panic+0x44
data_abort() at data_abort+0x30c
handle_el1h_sync() at handle_el1h_sync+0x14
--- exception, esr 0x8600000e
(null)() at 0xffffa0000c93bb00
add_route() at add_route+0xc4
add_route_flags() at add_route_flags+0x1b0
rib_add_route() at rib_add_route+0x324
ifa_maintain_loopback_route() at ifa_maintain_loopback_route+0xf4
in6_update_ifa() at in6_update_ifa+0x994
in6_ifattach() at in6_ifattach+0x1bc
in6_if_up() at in6_if_up+0x90
if_up() at if_up+0xd8
ifhwioctl() at ifhwioctl+0xb7c
ifioctl() at ifioctl+0x860
kern_ioctl() at kern_ioctl+0x2dc
sys_ioctl() at sys_ioctl+0x118
do_el0_sync() at do_el0_sync+0x520
handle_el0_sync() at handle_el0_sync+0x44
--- exception, esr 0x56000000
KDB: enter: panic
[ thread pid 203 tid 100109 ]
Stopped at      kdb_enter+0x44: str     xzr, [x19, #3328]
db> bt
Tracing pid 203 tid 100109 td 0xffff000132c76c40
db_trace_self() at db_trace_self
db_stack_trace() at db_stack_trace+0x11c
db_command() at db_command+0x2d8
db_command_loop() at db_command_loop+0x54
db_trap() at db_trap+0xf8
kdb_trap() at kdb_trap+0x20c
handle_el1h_sync() at handle_el1h_sync+0x14
--- exception, esr 0xf2000000
kdb_enter() at kdb_enter+0x44
vpanic() at vpanic+0x178
panic() at panic+0x44
data_abort() at data_abort+0x30c
handle_el1h_sync() at handle_el1h_sync+0x14
--- exception, esr 0x8600000e
(null)() at 0xffffa0000c93bb00
add_route() at add_route+0xc4
add_route_flags() at add_route_flags+0x1b0
rib_add_route() at rib_add_route+0x324
ifa_maintain_loopback_route() at ifa_maintain_loopback_route+0xf4
in6_update_ifa() at in6_update_ifa+0x994
in6_ifattach() at in6_ifattach+0x1bc
in6_if_up() at in6_if_up+0x90
if_up() at if_up+0xd8
ifhwioctl() at ifhwioctl+0xb7c
ifioctl() at ifioctl+0x860
kern_ioctl() at kern_ioctl+0x2dc
sys_ioctl() at sys_ioctl+0x118
do_el0_sync() at do_el0_sync+0x520
handle_el0_sync() at handle_el0_sync+0x44
--- exception, esr 0x56000000
db> 

The uname details:
14.0-CURRENT FreeBSD 14.0-CURRENT #1 main-n263931-5aee3e14d491-dirty: Mon Jul 
3 14:15:14 UTC 2023    
root@poudriere:/usr/obj/usr/src/arm64.aarch64/sys/GENERIC arm64

And ifconfig details :
schakrabarti@schakrabarti-freebsd-arm:~ $ ifconfig -a
lo0: flags=1008049<UP,LOOPBACK,RUNNING,MULTICAST,LOWER_UP> metric 0 mtu 16384
        options=680003<RXCSUM,TXCSUM,LINKSTATE,RXCSUM_IPV6,TXCSUM_IPV6>
        inet 127.0.0.1 netmask 0xff000000
        inet6 ::1 prefixlen 128
        inet6 fe80::1%lo0 prefixlen 64 scopeid 0x1
        groups: lo
        nd6 options=21<PERFORMNUD,AUTO_LINKLOCAL>
hn0: flags=1008843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST,LOWER_UP> metric 0
mtu 1500
        options=0
        ether 00:0d:3a:1b:a5:92
        inet 10.0.0.4 netmask 0xffffff00 broadcast 10.0.0.255
        media: Ethernet 100GBase-CR4 <full-duplex,rxpause,txpause>
        status: active
        nd6 options=29<PERFORMNUD,IFDISABLED,AUTO_LINKLOCAL>
mce0: flags=1008a43<UP,BROADCAST,RUNNING,ALLMULTI,SIMPLEX,MULTICAST,LOWER_UP>
metric 0 mtu 1500
       
options=18a00a8<VLAN_MTU,JUMBO_MTU,VLAN_HWCSUM,NV,LINKSTATE,HWSTATS,TXRTLMT>
        ether 00:0d:3a:1b:a5:92
        media: Ethernet 100GBase-CR4 <full-duplex,rxpause,txpause>
        status: active
        nd6 options=29<PERFORMNUD,IFDISABLED,AUTO_LINKLOCAL>

-- 
You are receiving this mail because:
You are the assignee for the bug.
lmpx.com only provides a reader for public news (NNTP) servers. It is not affiliated with the servers or forums shown here and is not responsible for the content of articles, which is written by their respective authors.