[Bug 286302] avahi-daemon Fatal trap 12: page fault while in kernel mode

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=286302

            Bug ID: 286302
           Summary: avahi-daemon  Fatal trap 12: page fault while in
                    kernel mode
           Product: Base System
           Version: 14.2-RELEASE
          Hardware: amd64
                OS: Any
            Status: New
          Severity: Affects Only Me
          Priority: ---
         Component: kern
          Assignee: bugs@FreeBSD.org
          Reporter: lists@freshlybrewed.coffee

I've seen the below fault and panic several times on an amd64 host running many
vnet jails and some bhyve vms.

Panic is triggered on restarting a jailed avahi-daemon, or on restarting the
jail containing it. I'm using iocage for jail management. It's not reliably
reproduceable, i.e. it doesn't happen everytime I restart the jail or
avahi-daemon


Fatal trap 12: page fault while in kernel mode
cpuid = 14; apic id = 34
fault virtual address   = 0x28
fault code              = supervisor read data, page not present
instruction pointer     = 0x20:0xffffffff80d596fe
stack pointer           = 0x28:0xfffffe01cf26db50
frame pointer           = 0x28:0xfffffe01cf26dbb0
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         = 21985 (avahi-daemon)
rdi: fffff802e9838100 rsi: 0000000000000000 rdx: 0000000000000001
rcx: 0000000000000001  r8: 0000000000000000  r9: 0000000000000000
rax: 0000000000000000 rbx: fffff80830c35000 rbp: fffffe01cf26dbb0
r10: 0000000824abf43a r11: fffff80830c35520 r12: fffff802e9838100
r13: 0000000000000000 r14: 0000000000000000 r15: fffff8078e4dd800
trap number             = 12
panic: page fault
cpuid = 14
time = 1745393475
KDB: stack backtrace:
#0 0xffffffff80b8b88d at kdb_backtrace+0x5d
#1 0xffffffff80b3dc11 at vpanic+0x131
#2 0xffffffff80b3dad3 at panic+0x43
#3 0xffffffff81025a0b at trap_fatal+0x40b
#4 0xffffffff81025a56 at trap_pfault+0x46
#5 0xffffffff80ffc388 at calltrap+0x8
#6 0xffffffff80d481cf at in6_leavegroup_locked+0x8f
#7 0xffffffff80d48952 at ip6_freemoptions+0x142
#8 0xffffffff80cf9b29 at in_pcbfree+0x329
#9 0xffffffff80be2b39 at sorele_locked+0x89
#10 0xffffffff80be375a at soclose+0x14a
#11 0xffffffff80adb8f1 at _fdrop+0x11
#12 0xffffffff80adeb5a at closef+0x24a
#13 0xffffffff80ae2bd8 at closefp_impl+0x58
#14 0xffffffff810262be at amd64_syscall+0x10e
#15 0xffffffff80ffcc9b at fast_syscall_common+0xf8

-- 
You are receiving this mail because:
You are the assignee for the bug.